CDX-NC9950

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  • 1Ver. 1.0 2005. 02

    Model Name Using Similar MechanismCDX-F7710/F7710S/F7715X/F7750/F7750S

    CD Drive Mechanism Type MG-611TS-186//KOptical Pick-up Name KSS1000E

    SERVICE MANUAL AEP ModelUK Model

    CDX-NC9950

    CD player sectionSignal-to-noise ratio 120 dBFrequency response 10 20,000 HzWow and flutter Below measurable limit

    Tuner sectionFMTuning range 87.5 108.0 MHzAntenna terminal External antenna connectorIntermediate frequency 10.7 MHz/450 kHzUsable sensitivity 9 dBfSelectivity 75 dB at 400 kHzSignal-to-noise ratio 67 dB (stereo),

    69 dB (mono)Harmonic distortion at 1 kHz

    0.5% (stereo),0.3% (mono)

    Separation 35 dB at 1 kHzFrequency response 30 15,000 Hz

    SPECIFICATIONSMW/LWTuning range MW: 531 1,602 kHz

    LW: 153 279 kHzAerial terminal External aerial connectorIntermediate frequency 10.7 MHz/450 kHzSensitivity MW: 30 V

    LW: 40 V

    Power amplifier sectionOutputs Speaker outputs

    (sure seal connectors)Speaker impedance 4 8 ohmsMaximum power output 52 W 4 (at 4 ohms)

    GeneralOutputs Audio outputs terminal (front/rear)

    Subwoofer output terminal (mono)Power antenna relay control terminalPower amplifier control terminal

    Inputs Telephone ATT control terminalIllumination control terminalParking brake input terminalBUS control input terminalBUS audio input/AUX IN terminalRemote controller input terminalAntenna input terminalVideo input terminal

    The tuner and CD sections have no adjustments.

    Sony Corporatione Vehicle CompanyPublished by Sony Engineering Corporation

    9-879-477-012005B04-1 2005. 02

    Continued on next page

    FM/MW/LW COMPACT DISC PLAYER

  • 2CDX-NC9950

    If the optical pick-up block is defective, please replace the wholeoptical pick-up block.Never turn the semi-fixed resistor located at the side of opticalpick-up block.

    CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.

    SAFETY-RELATED COMPONENT WARNING!!

    COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.

    Connection terminal Navigation control terminal (NV-BUS)Tone controls Bass: 8 dB at 100 Hz

    Treble: 8 dB at 10 kHzLoudness +8 dB at 100 Hz

    +2 dB at 10 kHzPower requirements 12 V DC car battery

    (negative ground)Dimensions Approx. 178 50 182 mm

    (w/h/d)Mounting dimensions Approx. 182 53 162 mm

    (w/h/d)Mass Approx. 1.6 kgSupplied accessories Card remote commander RM-X150 (1)

    Parts for installation and connections (1 set)Front panel cover (1)

    NoteThis unit cannot be connected to a digital preamplifier or an equalizerwhich is Sony BUS system compatible.

    Design and specifications are subject to change withoutnotice.

    NOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreakdown because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic breakdown and also usethe procedure in the printed matter which is included in the repairparts.The flexible board is easily damaged and should be handled withcare.

    NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, ob-serve from more than 30 cm away from the objective lens.

    Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be

    damaged by heat.

    TEST DISCSThis set can playback CD-R and CD-ROM discs. The followingtest discs should be used to check the capability:

    CD-R test disc TCD-R082LMT (Part No. J-2502-063-1)CD-RW test disc TCD-W082L (Part No. J-2502-063-2)

    SERVICE NOTES

    This label is located on the bottom of the chassis.

    optical pick-up

    semi-fixed resistor

  • 3CDX-NC9950

    CD Playback:You can play CD-DA (also containing CD TEXT*1), CD-R/CD-RW (MP3 files also containing Multi Session and ATRAC CD(ATRAC3 and ATRAC3plus format).

    Type of discs Label on the disc

    CD-DA

    MP3ATRAC CD

    *1 A CD TEXT disc is a CD-DA that includes information such asdisc, artist and track name.

    EXTENSION CABLE AND SERVICE POSITIONWhen repairing or servicing this set, connect the jig (extension cable)as shown below.

    Connect the MAIN board (CN401) and the SERVO board (CN2)with the extension cable (Part No. J-2502-076-1).

    SERVO BOARDCN2

    MAIN BOARDCN401

    J-2502-076-1

    NOTE FOR THE OPENING OF THE FRONT PANELIn this set, the front panel is lowered to below the bottom face whenit is opened.When servicing the set, place it on a stand having a height of about2 cm.

    FORCED FRONT PANEL OPEN/CLOSEThe front panel is forced to OPEN/CLOSE at the timing that thepower (ACC) is turned off.If the Z button for the front panel is not effective, the followingmethod is used:

    With the front panel open: The front panel is closed when ACC isswitched from ON to OFF edge.

    With the front panel closed: The front panel is opened when ACCis switched from ON to OFF edge.

    NOTE FOR REPLACEMENT OF THE DIGITAL BOARDWhen repairing, the complete DIGITAL board should be replacedsince any parts in the DIGITAL board cannot be repaired.

    stand

  • 4CDX-NC9950

    TABLE OF CONTENTS

    1. GENERALLocation of Controls ................................................................ 5Connections ............................................................................. 5

    2. DISASSEMBLY2-1. Front Panel Assy ................................................................. 82-2. Sub Panel Assy .................................................................... 82-3. CD Mechanism Block ......................................................... 92-4. Driving Section ................................................................... 92-5. Driven (F) Assy, Inverted (F) Assy .................................... 102-6. Digital Board ..................................................................... 102-7. Main Board ....................................................................... 112-8. Chassis (T) Sub Assy ........................................................ 112-9. Roller Arm Assy ................................................................ 122-10. Chassis (OP) Assy ............................................................. 122-11. Optical Pick-up ................................................................. 132-12. SL Motor Assy (M902) ..................................................... 132-13. LE Motor Assy (M903) ..................................................... 142-14. Servo Board ....................................................................... 14

    3. DIAGRAMS3-1. Block Diagram CD Section ........................................... 153-2. Block Diagram Main Section ........................................ 163-3. Block Diagram Display Section .................................... 173-4. Circuit Boards Location .................................................... 183-5. Printed Wiring Boards CD Mechanism Section ............ 193-6. Schematic Diagram CD Mechanism Section (1/2) ....... 203-7. Schematic Diagram CD Mechanism Section (2/2) ....... 213-8. Printed Wiring Boards Main Section ............................ 223-9. Schematic Diagram Main Section (1/4) ........................ 243-10. Schematic Diagram Main Section (2/4) ........................ 253-11. Schematic Diagram Main Section (3/4) ........................ 263-12. Schematic Diagram Main Section (4/4) ........................ 273-13. Schematic Diagram Display Section ............................. 283-14. Printed Wiring Board Display Section .......................... 29

    4. EXPLODED VIEWS4-1. Chassis Section ................................................................. 404-2. Main Board Section .......................................................... 414-3. Front Panel Section ........................................................... 424-4. CD Mechanism Section (1) ............................................... 434-5. CD Mechanism Section (2) ............................................... 444-6. CD Mechanism Section (3) ............................................... 454-7. CD Mechanism Section (4) ............................................... 46

    5. ELECTRICAL PARTS LIST ........................................ 47

    z UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size)

    : LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher

    than ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350 C.Caution: The printed pattern (copper foil) may peel away ifthe heated tip is applied for too long, so be careful!

    Strong viscosityUnleaded solder is more viscous (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridgesoccur such as on IC pins, etc.

    Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.

  • 5CDX-NC9950SECTION 1GENERAL This section is extracted

    from instruction manual. LOCATION OF CONTROLS

    CONNECTIONS

    8

    Location of controls

    a SOURCE (Power on/Radio/CD/MD/AUX*1) buttonTo select the source.

    b OFF (Stop/Power off) buttonTo turn off the unit/stop playback or radio reception.

    c Display windowd ENTER button

    CD/MD/Radio:To change the functions of the R dial.Menu:To decide an item/apply a setting of the menu item.

    e Z (Open/Close) buttonTo open/close the front panel/eject a disc when loaded.

    f L (Left) dialTo adjust the volume.

    g CUSTOM button*2CD/MD/Radio/AUX:To perform the function assigned.Menu:To return to a previous display.

    h ReceptorTo receive signals from the card remote commander or wireless rotary commander.

    i Reset buttonTo reset the unit.

    j MENU buttonTo display the main menu for settings and adjustments.

    k R (Right) dialCD/MD/Radio:To select the desired radio station, track, group*3 or disc*4.Menu:To select an item.

    Note on using the L/R dialsBefore using the L/R dials, push in and release them first. Push in again when storing after use.

    *1 When an optional Sony portable device is connected.

    *2 When the optional NVX-HC1 is connected, this button has a different function. For details, see the operating instructions supplied with the NVX-HC1.

    *3 When an MP3/ATRAC CD is played.*4 When an optional CD/MD changer is connected.

    CDX-NC9950

    SOURCE

    CUSTOM

    OFF

    VOL

    MENU

    ENTER

    9

    The buttons on the card remote commander share the same functions as those on the unit.

    a OFF buttonb Number buttons*1

    Radio: To store/receive stations.CD/MD: To change playback mode.(1): REP(2): SHUF(5): BBE MP*2*3 2To activate the BBE MP function, set BBE MP ON. To cancel, set BBE MP OFF.(6): PAUSE*3

    c MENU buttond

  • 6CDX-NC9950

    5 7

    4 8

    1 3 5 7

    2 4 6 8A

    B

    C

    AMP REM

    ATT 6

    SUB OUTBUS AUDIO IN/

    AUX IN*4

    BUSCONTROL IN

    REMOTEIN

    AUDIO OUTREARVIDEO IN

    AUDIO OUTFRONT

    NV-BUS

    from car aerial*9von Autoantenne*9de lantenne de la voiture*9dallantenna dellauto*9van een auto-antenne*9

    Fuse (10 A)Sicherung (10 A)Fusible (10 A)Fusibile (10 A)Zekering (10 A)

    Light blueHellblauBleu cielAzzurroLichtblauw

    Blue/white stripedBlauwei gestreiftRay bleu/blancRigato blu e biancoBlauw/wit gestreept

    from the cars power connectorvom Stromanschluss des Fahrzeugsdu connecteur dalimentation de la voituredal connettore di alimentazione dellautovan de autovoedingsstekker

    See Power connection diagram on the reverse side for details.Nheres dazu fi nden Sie im Stromanschlussdiagramm. Blttern Sie dazu bitte um.Voir le Schma de raccordement dalimentation au verso pour plus de dtails.Per ulteriori informazioni, vedere Diagramma dei collegamenti di alimentazione che si trova sul retro.Zie "Voedingsaansluitschema" op de achterkant voor meer details.

    Max. supply current 0.3 Amax. Versorgungsstrom 0,3 ACourant dalimentation maximum 0,3 AAlimentazione massima fornita 0,3 AMax. voedingsstroom 0,3 A

    Negative polarity positions 2, 4, 6, and 8 have striped leads.An den negativ gepolten Positionen 2, 4, 6 und 8 be nden sich gestreifte Adern.Les positions de polarit ngative 2, 4, 6 et 8 sont dotes de cordons rays.Le posizioni a polarit negativa 2, 4, 6 e 8 hanno cavi rigati.De posities voor negatieve polariteit (2, 4, 6 en 8) hebben gestreepte kabels.

    1PurpleViolettMauveViolaPaars

    +

    Speaker, Rear, RightLautsprecher hinten rechtsHaut-parleur, arrire, droit

    Diffusore, posteriore, destroLuidspreker, achter, rechts

    5WhiteWeiBlanc

    BiancoWit

    +

    Speaker, Front, LeftLautsprecher vorne links

    Haut-parleur, avant, gaucheDiffusore, anteriore, sinistro

    Luidspreker, voor, links

    2

    Speaker, Rear, RightLautsprecher hinten rechtsHaut-parleur, arrire, droit

    Diffusore, posteriore, destroLuidspreker, achter, rechts

    6

    Speaker, Front, LeftLautsprecher vorne links

    Haut-parleur, avant, gaucheDiffusore, anteriore, sinistro

    Luidspreker, voor, links

    3GreyGrauGris

    GrigioGrijs

    +

    Speaker, Front, RightLautsprecher vorne rechtsHaut-parleur, avant, droit

    Diffusore, anteriore, destroLuidspreker, voor, rechts

    7GreenGrnVert

    VerdeGroen

    +

    Speaker, Rear, LeftLautsprecher hinten links

    Haut-parleur, arrire, gaucheDiffusore, posteriore, sinistro

    Luidspreker, achter, links

    4

    Speaker, Front, RightLautsprecher vorne rechtsHaut-parleur, avant, droit

    Diffusore, anteriore, destroLuidspreker, voor, rechts

    8

    Speaker, Rear, LeftLautsprecher hinten links

    Haut-parleur, arrire, gaucheDiffusore, posteriore, sinistro

    Luidspreker, achter, links

    from the cars speaker connectorvom Lautsprecheranschluss des Fahrzeugsdu connecteur de haut-parleur de la voituredal connettore del diffusore dellautovan de autoluidsprekerstekker

    Source selector(not supplied)

    Signalquellenwhler(nicht mitgeliefert)

    Slecteur de source(non fourni)

    Selettore di fonte(non in dotazione)Geluidsbronkiezer(niet bijgeleverd)

    XA-C30

    Positions 1, 2 and 3 do not have pins.An Position 1, 2 und 3 be nden sich keine Stifte.Les positions 1, 2 et 3 ne comportent pas de broches.Le posizioni 1, 2 e 3 non hanno piedini.De posities 1, 2 en 3 hebben geen pins.

    4

    YellowGelb

    JauneGialloGeel

    continuous power supplypermanente Stromversorgung

    alimentation continuealimentazione continua

    continu voeding

    5

    BlueBlauBleuBlu

    Blauw

    power aerial controlMotorantennensteuerung

    antenne lectriquecomando dellantenna elettrica

    automatische antenne

    6

    Orange/WhiteOrangewei

    Orange/blancArancione/

    biancoOranje/wit

    switched illumination power supplygeschaltete

    Beleuchtungsstromversorgungalimentation de lclairage

    commutalimentazione illuminazione

    commutatageschakelde voeding voor

    verlichting

    7

    RedRot

    RougeRossoRood

    switched power supplygeschaltete Stromversorgung

    alimentation commutealimentazione commutata

    geschakelde voeding

    8

    BlackSchwarz

    NoirNeroZwart

    earthMassemasseterra

    aarding

    *1

    *2

    *3

    *3

    *5

    *6

    *7

    *8

    Light greenHellgrnVert clairVerde chiaroLichtgroen*12

    *11

    *1 Supplied with the CD/MD changer

    *2 Supplied with XA-C30*3 RCA pin cord (not supplied)*4 BUS AUDIO IN and AUX IN are

    automatically switched depending on the equipment connected.

    *5 Be sure to match the colour-coded cord for audio to the appropriate jacks from the chager. If you connect an optional CD/MD changer, you cannot use AUX IN terminal.

    *6 Be sure to match the colour-coded cord for audio and visual to the appropriate jacks from the unit.

    *7 Supplied with the auxiliary equipment

    *8 Auxiliary equipment such as portable DVD player (not supplied)

    *9 Note for the aerial connecting If your car aerial is an ISO

    (International Organisation for Standardisation) type, use the supplied adaptor 2 to connect it. First connect the car aerial to the supplied adaptor, then connect it to the aerial jack of the master unit.

    *10 Supplied with the NVX-HC1Insert with the connector until it clicks.

    *11 Insert with the cord upwards*12 For details on connecting to the

    parking brake switch cord, see Connecting the parking brake cord (4) on the reverse side.

    *1 Mit dem CD/MD-Wechsler geliefert

    *2 Mit dem XA-C30 geliefert*3 Cinchkabel (nicht mitgeliefert)*4 BUS AUDIO IN und

    AUX IN werden je nach angeschlossenem Gert automatisch gewechselt.

    *5 Achten Sie darauf, das farbcodierte Audiokabel mit den richtigen Buchsen am Gert zu verbinden. Wenn ein gesondert erhltlicher CD/MD-Wechsler angeschlossen ist, kann der Anschluss AUX IN nicht verwendet werden.

    *6 Achten Sie darauf, die farbcodierten Audio-und Videokabel mit den richtigen Buchsen am Gert zu verbinden.

    *7 Mit den Zusatzgerten mitgeliefert

    *8 Zustzliche Gerte wie z. B. der tragbare DVD-Player (nicht mitgeliefert)

    *9 Hinweis zum Anschlieen der Antenne

    Wenn Ihre Fahrzeugantenne der ISO-Norm (ISO = International Organization for Standardization - Internationale Normungsgemeinschaft) entspricht, schlieen Sie sie mithilfe des mitgelieferten Adapters 2 an. Verbinden Sie zuerst die Fahrzeugantenne mit dem mitgelieferten Adapter und verbinden Sie diesen dann mit der Antennenbuchse des Hauptgerts.

    *10 Mit dem NVX-HC1 geliefert Setzen Sie den Stecker so

    ein, dass er mit einem Klicken einrastet.

    *11 Mit dem Kabel nach oben einsetzen

    *12 Informationen zum Anschlieen der Parkbremsenschaltleitung fi nden Sie unter Anschlieen der Parkbremsenleitung (4) auf der Rckseite.

    *1 Fourni avec le changeur de CD/MD

    *2 Fourni avec le XA-C30*3 Cordon broche RCA (non

    fourni)*4 Les connecteurs BUS AUDIO

    IN et AUX IN se commutent automatiquement selon lappareil raccord.

    *5 Veillez faire correspondre le code de couleur du cordon audio celui des fi ches correspondantes de lappareil. Si vous raccordez un changeur de CD/MD en option, vous ne pouvez pas utiliser la borne AUX IN.

    *6 Veillez faire correspondre le code de couleurs audio et vido aux prises correspondantes de lappareil.

    *7 Fourni avec lquipement auxiliaire

    *8 Appareil auxiliaire tel quun lecteur DVD portable (non fourni)

    *9 Remarque sur le raccordement de lantenne

    Si votre antenne de voiture est de type ISO (Organisation internationale de normalisation), utilisez ladaptateur fourni 2 pour la raccorder. Raccordez dabord lantenne de voiture ladaptateur fourni et, ensuite, la prise dantenne de lappareil principal.

    *10 Fourni avec le NVX-HC1 Insrez avec le connecteur

    jusquau dclic.*11 Insrez avec le cble vers le haut*12 Pour obtenir davantage

    dinformations sur le raccordement au cordon du capteur du frein main, reportez-vous la section Raccordement du cordon du frein main (4) au verso.

    *1 In dotazione con il cambia CD/MD

    *2 In dotazione con il modello XA-C30

    *3 Cavo a piedini RCA (non in dotazione)

    *4 BUS AUDIO IN o AUX IN viene automaticamente impostato in base allapparecchio collegato.

    *5 Assicurarsi che i cavi differenziati in base al colore per laudio corrispondano alle prese appropriate dellapparecchio. Se viene collegato un cambia CD/MD opzionale, non possibile utilizzare il terminale AUX IN.

    *6 Assicurarsi che i cavi differenziati in base al colore per laudio e per il video corrispondano alle prese appropriate dellapparecchio.

    *7 In dotazione con lapparecchio ausiliario

    *8 Apparecchio opzionale ausiliario quale un lettore DVD portatile

    *9 Nota per il collegamento dellantenna

    Se lantenna dellauto di tipo ISO (International Organization for Standardization), utilizzare ladattatore 2 in dotazione per collegarla. Collegare prima lantenna della macchina alladattatore in dotazione, quindi collegarla alla presa dellantenna dellapparecchio principale.

    *10 In dotazione con il modello NVX-HC1

    Inserire insieme al connettore fi no ad udire uno scatto.

    *11 Inserire con il cavo rivolto verso lalto

    *12 Per ulteriori informazioni sulla modalit di collegamento del cavo di commutazione del freno a mano, consultare Collegamento del cavo del freno a mano (4) sul lato opposto.

    *1 Geleverd bij de CD/MD-wisselaar*2 Geleverd bij de XA-C30*3 Tulpstekkersnoer (niet bijgeleverd)*4 BUS AUDIO IN en AUX IN

    worden automatisch geschakeld, afhankelijk van de aangesloten apparatuur.

    *5 Zorg ervoor dat de kleurcode van het snoer voor audio overeenkomt met de bijbehorende aansluitingen op het apparaat. Als u een optionele CD/MD-wisselaar aansluit, kunt u de AUX IN aansluiting niet gebruiken.

    *6 Zorg dat de kleurcode van de kabel voor audio en beeld overeenkomt met de betreffende aansluitingen op het apparaat.

    *7 Geleverd bij de optionele apparatuur

    *8 Optionele apparatuur zoals de draagbare DVD-speler (niet bijgeleverd)

    *9 Opmerking bij de antenneaansluiting

    Indien uw auto is uitgerust met een antenne van het type ISO (International Organisation for Standardization), moet u die aansluiten met de bijgeleverde adapter 2. Sluit eerst de auto-antenne aan op de bijgeleverde adapter en vervolgens de antennestekker op het hoofdtoestel.

    *10 Geleverd bij de NVX-HC1 Plaats de aansluiting tot deze

    vastklikt.*11 Plaatsen met het snoer naar boven*12 Zie "Parkeerremkabel aansluiten

    (4)" aan de achterzijde voor meer informatie over het aansluiten op het schakelsnoer van de parkeerrem.

    *10

    2

    3

    Aansluitschema (3)A Naar AMP REMOTE IN van een optionele

    eindversterkerDeze aansluiting is alleen bedoeld voor versterkers. Door een ander systeem aan te sluiten kan het apparaat worden beschadigd.

    B Naar het interface-snoer van een autotelefoon

    C Naar het schakelsnoer van de parkeerrem

    WaarschuwingIndien u een elektrische antenne hebt zonder relaiskast, kan het aansluiten van deze eenheid met het bijgeleverde netsnoer 3 de antenne beschadigen.Opmerkingen over de bedienings- en voedingskabels De antennevoedingskabel (blauw) levert +12 V gelijkstroom

    wanneer u de tuner inschakelt of de AF (Alternative Frequency) of TA (Traffi c Announcement) functie activeert.

    Wanneer uw auto is uitgerust met een FM/MW/LW-antenne in de achterruit/zijruit, moet u de antennevoedingskabel (blauw) of de hulpvoedingskabel (rood) aansluiten op de voedingsingang van de bestaande antenneversterker. Raadpleeg uw dealer voor meer details.

    Met dit apparaat is het niet mogelijk een automatische antenne zonder relaiskast te gebruiken.

    Instandhouden van het geheugenZolang de gele stroomdraad is aangesloten, blijft de stroomvoorziening van het geheugen intact, ook wanneer het contact van de auto wordt uitgeschakeld.Opmerkingen betreffende het aansluiten van de luidsprekers Zorg dat het apparaat is uitgeschakeld, alvorens de

    luidsprekers aan te sluiten. Gebruik luidsprekers met een impedantie van 4 tot 8 Ohm

    en let op dat die het vermogen van de versterker kunnen verwerken. Als dit wordt verzuimd, kunnen de luidsprekers ernstig beschadigd raken.

    Verbind in geen geval de aansluitingen van de luidsprekers met het chassis van de auto en sluit de aansluitingen van de rechter- en linkerluidspreker niet op elkaar aan.

    Verbind de aarddraad van dit apparaat niet met de negatieve () aansluiting van de luidspreker.

    Probeer nooit de luidsprekers parallel aan te sluiten. Sluit geen actieve luidsprekers (met ingebouwde versterkers)

    aan op de luidspreker-aansluiting van dit apparaat. Dit zal leiden tot beschadiging van het apparaat. Sluit dus altijd uitsluitend luidsprekers zonder ingebouwde versterker aan.

    Om defecten te vermijden mag u de bestaande luidsprekerbedrading in uw auto niet gebruiken wanneer er een gemeenschappelijke negatieve () draad is voor de rechter- en linkerluidsprekers.

    Verbind de luidsprekerdraden niet met elkaar.Opmerking over aansluitenAls de luidspreker en versterker niet correct zijn aangesloten, wordt "Failure" in het display weergegeven. In dit geval moet u zorgen dat de luidspreker en versterker correct zijn aangesloten.

    Schmas de raccordement (3)A Au niveau du AMP REMOTE IN dun

    amplifi cateur de puissance facultatifCe raccordement existe seulement pour les amplifi cateurs. Le raccordement tout autre systme peut endommager lappareil.

    B Vers le cordon de liaison dun tlphone de voiture

    C Vers le cordon du capteur du frein main

    AvertissementSi vous disposez dune antenne lectrique sans botier de relais, le branchement de cet appareil au moyen du cordon dalimentation fourni 3 risque dendommager lantenne.Remarques sur les cbles de commande et dalimentation Le cble de commande dantenne (bleu) fournit du courant

    continu de +12 V lorsque vous mettez le tuner sous tension ou lorsque vous activez la fonction AF (frquence alternative) ou TA (informations de circulation).

    Lorsque votre voiture est quipe dune antenne FM/MW (GO)/LW (PO) intgre dans la vitre arrire/latrale, raccordez le cble de commande dantenne (bleu) ou lentre dalimentation des accessoires (rouge) au bornier de lamplifi cateur dantenne existant. Pour plus de dtails, consultez votre revendeur.

    Une antenne lectrique sans botier de relais ne peut pas tre utilise avec cet appareil.

    Raccordement pour la conservation de la mmoireLorsque le cble de commande dantenne jaune est connect, le circuit de la mmoire est aliment en permanence mme si la cl de contact est en position darrt.Remarques sur le raccordement des haut-parleurs Avant de raccorder les haut-parleurs, mettez lappareil hors

    tension. Utilisez des haut-parleurs ayant une impdance de 4 8 ohms

    et une capacit adquate sous peine de les endommager. Ne raccordez pas les bornes du systme de haut-parleurs au

    chssis de la voiture et ne connectez pas les bornes du haut-parleur droit celles du haut-parleur gauche.

    Ne raccordez pas le cble de mise la masse de cet appareil la borne ngative () du haut-parleur.

    Ne tentez pas de raccorder les haut-parleurs en parallle. Connectez uniquement des haut-parleurs passifs. La

    connexion de haut-parleurs actifs (avec des amplifi cateurs intgrs) aux bornes des haut-parleurs pourrait endommager lappareil.

    Pour viter tout problme de fonctionnement, nutilisez pas les cbles des haut-parleurs intgrs installs dans votre voiture si lappareil dispose dun cble ngatif commun () pour les haut-parleurs droit et gauche.

    Ne raccordez pas entre eux les cordons des haut-parleurs de lappareil.

    Remarque sur le raccordementSi les enceintes et lamplifi cateur ne sont pas raccords correctement, le message Failure saffi che. Dans ce cas, assurez-vous que les enceintes et lamplifi cateur sont raccords correctement.

    Anschlussdiagramm (3)A An AMP REMOTE IN des gesondert

    erhltlichen EndverstrkersDieser Anschluss ist ausschlielich fr Verstrker gedacht. Schlieen Sie nichts anderes daran an. Andernfalls kann das Gert beschdigt werden.

    B An Schnittstellenkabel eines AutotelefonsC An die Parkbremsenschaltleitung

    WarnungWenn Sie eine Motorantenne ohne Relaiskstchen verwenden, kann durch Anschlieen dieses Gerts mit dem mitgelieferten Stromversorgungskabel 3 die Antenne beschdigt werden.Hinweise zu den Steuer- und Stromversorgungsleitungen Die Motorantennen-Steuerleitung (blau) liefert +12 V

    Gleichstrom, wenn Sie den Tuner einschalten oder die AF- (Alternativfrequenzsuche) oder die TA-Funktion (Verkehrsdurchsagen) aktivieren.

    Wenn das Fahrzeug mit einer in der Heck-/Seitenfensterscheibe integrierten FM (UKW)/MW/LW-Antenne ausgestattet ist, schlieen Sie die Motorantennen-Steuerleitung (blau) oder die Zubehrstromversorgungsleitung (rot) an den Stromversorgungsanschluss des vorhandenen Antennenverstrkers an. Nheres dazu erfahren Sie bei Ihrem Hndler.

    Es kann nur eine Motorantenne mit Relaiskstchen angeschlossen werden.

    Stromversorgung des SpeichersWenn die gelbe Stromversorgungsleitung angeschlossen ist, wird der Speicher stets (auch bei ausgeschalteter Zndung) mit Strom versorgt.Hinweise zum Lautsprecheranschluss Schalten Sie das Gert aus, bevor Sie die Lautsprecher

    anschlieen. Verwenden Sie Lautsprecher mit einer Impedanz zwischen 4 und

    8 Ohm und ausreichender Belastbarkeit. Ansonsten knnen die Lautsprecher beschdigt werden.

    Verbinden Sie die Lautsprecheranschlsse nicht mit dem Wagenchassis und verbinden Sie auch nicht die Anschlsse des rechten mit denen des linken Lautsprechers.

    Verbinden Sie die Masseleitung dieses Gerts nicht mit dem negativen () Lautsprecheranschluss.

    Versuchen Sie nicht, Lautsprecher parallel anzuschlieen. An die Lautsprecheranschlsse dieses Gerts drfen nur

    Passivlautsprecher angeschlossen werden. Schlieen Sie keine Aktivlautsprecher (Lautsprecher mit eingebauten Verstrkern) an, da das Gert sonst beschdigt werden knnte.

    Um Fehlfunktionen zu vermeiden, verwenden Sie nicht die im Fahrzeug installierten, integrierten Lautsprecherleitungen, wenn am Ende eine gemeinsame negative () Leitung fr den rechten und den linken Lautsprecher verwendet wird.

    Verbinden Sie nicht die Lautsprecherkabel des Gerts miteinander.

    Hinweis zum AnschlieenWenn Lautsprecher und Verstrker nicht richtig angeschlossen sind, erscheint Failure im Display. Vergewissern Sie sich in diesem Fall, dass Lautsprecher und Verstrker richtig angeschlossen sind.

    Schema di collegamento (3)A A AMP REMOTE IN di un amplifi catore di

    potenza opzionale Questo collegamento riservato esclusivamente agli amplifi catori. Non collegare un tipo di sistema diverso onde evitare di causare danni allapparecchio.

    B Al cavo di interfaccia di un telefono per autoC Al cavo di commutazione del freno a mano

    AvvertenzaQuando si collega lapparecchio con il cavo di alimentazione in dotazione 3, si potrebbe danneggiare lantenna elettrica se questa non dispone di scatola a rel.Note sui cavi di controllo e di alimentazione Il cavo (blu) di controllo dellantenna elettrica fornisce

    alimentazione pari a +12 V CC quando si attiva il sintonizzatore oppure la funzione TA (notiziario sul traffi co) o AF (frequenza alternativa).

    Se lautomobile dotata di antenna FM/MW/LW incorporata nel vetro posteriore/laterale, collegare il cavo (blu) di controllo dellantenna elettrica o il cavo (rosso) di ingresso dellalimentazione accessoria al terminale di alimentazione del preamplifi catore dellantenna esistente. Per ulteriori informazioni, consultare il proprio fornitore.

    Non possibile usare unantenna elettrica senza scatola a rel con questo apparecchio.

    Collegamento per la conservazione della memoriaQuando il cavo di ingresso alimentazione giallo collegato, viene sempre fornita alimentazione al circuito di memoria anche quando linterruttore di accensione spento.Note sul collegamento dei diffusori Prima di collegare i diffusori spegnere lapparecchio. Usare diffusori di impedenza compresa tra 4 e 8 ohm e con

    capacit di potenza adeguata, altrimenti i diffusori potrebbero venire danneggiati.

    Non collegare i terminali del sistema diffusori al telaio dellauto e non collegare i terminali del diffusore destro a quelli del diffusore sinistro.

    Non collegare il cavo di terra di questo apparecchio al terminale negativo () del diffusore.

    Non collegare i diffusori in parallelo. Assicurarsi di collegare soltanto diffusori passivi, poich

    il collegamento di diffusori attivi, dotati di amplifi catori incorporati, ai terminali dei diffusori potrebbe danneggiare lapparecchio.

    Per evitare problemi di funzionamento, non utilizzare i cavi dei diffusori incorporati installati nellautomobile se lapparecchio condivide un cavo comune negativo () per i diffusori destro e sinistro.

    Non collegare fra loro i cavi dei diffusori dellapparecchio.Nota sui collegamentiSe lamplifi catore e il diffusore non sono collegati correttamente, Failure viene visualizzato nel display. In tal caso, accertarsi che lamplifi catore e il diffusore siano collegati correttamente.

    Connection diagram (3)A To AMP REMOTE IN of an optional power

    amplifi erThis connection is only for amplifi ers. Connecting any other system may damage the unit.

    B To the interface cable of a car telephoneC To the parking brake switch cord

    WarningIf you have a power aerial without a relay box, connecting this unit with the supplied power connecting lead 3 may damage the aerial.Notes on the control power and suppy leads The power aerial control lead (blue) supplies +12 V DC when

    you turn on the tuner, or when you activate the AF (Alternative Frequency) or TA (Traffi c Announcement) function.

    When your car has built-in FM/MW/LW aerial in the rear/side glass, connect the power aerial control lead (blue) or the accessory power input lead (red) to the power terminal of the existing aerial booster. For details, consult your dealer.

    A power aerial without a relay box cannot be used with this unit.

    Memory hold connectionWhen the yellow power input lead is connected, power will always be supplied to the memory circuit even when the ignition switch is turned off.Notes on speaker connection Before connecting the speakers, turn the unit off. Use speakers with an impedance of 4 to 8 ohms, and with

    adequate power handling capacities to avoid its damage. Do not connect the speaker terminals to the car chassis, or

    connect the terminals of the right speakers with those of the left speaker.

    Do not connect the earth lead of this unit to the negative () terminal of the speaker.

    Do not attempt to connect the speakers in parallel. Connect only passive speakers. Connecting active speakers

    (with built-in amplifi ers) to the speaker terminals may damage the unit.

    To avoid a malfunction, do not use the built-in speaker leads installed in your car if the unit shares a common negative () lead for the right and left speakers.

    Do not connect the units speaker leads to each other.Note on connectionIf speaker and amplifi er are not connected correctly, Failure appears in the display. In this case, make sure the speaker and amplifi er are connected correctly.

  • 7CDX-NC9950SECTION 2

    DISASSEMBLYNote : This set can be disassemble according to the following sequence.

    2-1. FRONT PANEL ASSY(Page 8)

    2-2. SUB PANEL ASSY(Page 8)

    SET

    2-3. CD MECHANISM BLOCK(Page 9)

    2-4. DRIVING SECTION(DB-A04)(Page 9)

    2-6. DIGITAL BOARD(Page 10)

    2-7. MAIN BOARD(Page 11)

    2-8. CHASSIS (T) SUB ASSY(Page 11)

    2-9. ROLLER ARM ASSY(Page 12)

    2-10. CHASSIS (OP) ASSY(Page 12)

    2-12. SL MOTOR ASSY (M902)(Page 13)

    2-14. SERVO BOARD(Page 14)

    2-11. OPTICAL PICK-UP(Page 13)

    2-13. LE MOTOR ASSY (M903)(Page 14)

    2-5. DRIVEN (F) ASSY,INVERTED (F) ASSY(Page 10)

  • 8CDX-NC9950

    Note : Follow the disassembly procedure in the numerical order given.

    2-1. FRONT PANEL ASSY

    1 two screws (+PTT 2.6 x 6)

    4 sub panel assy

    2 two claws

    3 two claws

    2-2. SUB PANEL ASSY

    5 CN201

    4 cover (FPC)

    6 front panel assy

    (Take care not to pull the flexible board excessively)

    2 two screws (panel F)

    1 two screws (panel F)

    3

  • 9CDX-NC9950

    2-3. CD MECHANISM BLOCK

    7 bracket (CD)

    5 CD mechanism block

    4 CN401

    3

    1 screw (+PTT 2.6 x 6)

    2 screw (+PTT 2.6 x 6)

    6 two screws (+PTT 2.6 x 6)

    2-4. DRIVING SECTION (DB-A04)

    3 screw (+PTT 2.6 x 6)

    4 driving section(DB-F04)

    1 CN701 (5P)

    2 screw (+PTT 2.6 x 6)

  • 10

    CDX-NC9950

    2-5. DRIVEN (F) ASSY, INVERTED (F) ASSY

    2-6. DIGITAL BOARD

    1 two screws (+STP 2.6 x 6)

    3 inverted F assy

    5 drive F assy

    4 drive shaft assy

    gear (cam LF)

    gear (cam RF)

    2 joint

    A

    B

    To install the assembly, turn the gear (cam RF) and align the detent with the holes B.

    To install the assembly, turn the gear (cam LF) and align the detent with the holes A.

    4 three ground point screws (+PTT 2.6 x 6)

    1 connector (8P)

    2 connector (1P)

    5 DIGITAL board

    3 CN802 (30core)

  • 11

    CDX-NC9950

    2-8. CHASSIS (T) SUB ASSY

    2-7. MAIN BOARD

    1 ground point screw (+PTT 2.6 x 6)

    2 ground point screw (+PTT 2.6 x 6)

    3 two screws (+PTT 2.6 x 8)

    7 screw (+PTT 2.6 x 8)

    0 screw (+PTT 2.6 x 8)

    qa cord

    8 cord (AUX)

    4 MAIN board

    6 CN301 (3P)

    9 CN901 (5P)

    5 insulating sheet

    5 SENSOR board

    6 chassis (T) sub assy

    4 claw

    3 claw

    1 two screws (+P 1.7 x 2.2)

    2 two screws (+P 1.7 x 2.2)

  • 12

    CDX-NC9950

    2-9. ROLLER ARM ASSY

    2-10. CHASSIS (OP) ASSY

    3 washer (1.1-2.5)

    4 gear (RA1)

    5 roller arm assy

    1 spring (RAL)

    2 spring (RAR)

    4 washer

    0 coil spring (damper)

    9 two coil springs (damper)

    qa chassis (OP) assy

    5 gear (LE1)

    1 CN2 (16P)

    lever (D)

    slider (R)

    6

    7

    8

    2 Remove the six solderings.3 tension coil spring (KF60)

  • 13

    CDX-NC9950

    2-11. OPTICAL PICK-UP

    2-12. SL MOTOR ASSY (M902)

    1 tension coil spring (CHKG)

    2 chucking arm sub assy

    3 screw (+B 1.4 x 5)

    4 rack (SL)

    5 claw

    6 main shaft

    7 optical pick-up

    1 screw (+P 1.4 x 1.8)

    2 SL motor assy (M902)

  • 14

    CDX-NC9950

    2-13. LE MOTOR ASSY (M903)

    2-14. SERVO BOARD

    2 washer

    4

    qd

    3 gear (LE1)

    7 leaf spring (LE)

    5

    lever (D)

    bracket (LEM-N)

    slider (R)

    6 screw (+P 1.7 x 2.2)

    8 screw (+M 1.7 x 2.5)

    qa screw (+M 1.7 x 2.5)qf two toothed lock screws

    (+M 1.4 )

    qs screw (+M 1.7 x 2.5)

    9 bearing (LEB-N)

    0 gear (LE) assy

    qg LE motor assy (M903)

    1 Remove the soldering.

    3 CN2(16P)

    5 claw

    6 SERVO board

    4 toothed lock screw (M 1.7)

    1 Remove the eight solderings.

    2 Remove the three solderings.

  • 15 15

    CDX-NC9950

    CDX-NC9950

    3-1. BLOCK DIAGRAM CD SECTION

    (Page 16)

    SECTION 3DIAGRAMS

    (Page 16)

    AMPIC8

    AUDIO INTERFACEIC5

    1

    AU+5V AU+8.3V

    79RFO

    RF AMP,DIGITAL SERVO,DIGITAL SIGNAL PROCESSOR

    IC2

    87 RFEQO

    3RFRP

    6TEI

    85 RFI86 RFRPI

    1 RFZI

    7 TEZI

    9 F0O

    PD1

    PD2

    E

    F

    I-V A

    MP

    PD LD

    DETECTOR

    77AGCI78RFDCI

    94

    96

    95

    97

    99

    98

    TNI

    FPI1

    FNI1

    FPI2

    FNI2

    TPI

    91 LDO 92MDI

    (FOCUS)

    (TRACKING)

    2-AXIS DEVICE

    OPTICALPICK-UP BLOCK

    (KSS1000E)

    Signal Path: CD PLAY

    LASER DIODE

    M

    M

    M

    18

    17

    VO3

    VO3+

    14

    13

    VO1+

    VO1

    12

    11 VO2

    VO2+

    10

    9

    VOL+

    VOLFWD

    REV

    1

    28

    OPIN4 26

    OPOUT4 25

    10 TROOPIN3 23

    46 IO0(/HSO)OPOUT3 22

    12 FMOOPOUT1 4

    13 DMOOPIN2 7

    47 IO1(/UHSO)MUTE 21

    16

    15

    VO4

    VO4+

    M903(LOADING)

    M901(SPINDLE)

    M902(SLED)

    FOCUS/TRACKING COIL DRIVE,SLED/SPINDLE/LOADING

    MOTOR DRIVEIC1

    56MUTE53REQ43STBY18ZDET42/RST41/CCE40BUCK39BUS3

    CD-L MAIN SECTIONA

    58 3AOUT

    59BCKO

    DATA

    BCK

    LRCK

    SCK

    RST

    VOUTL+

    VOUTL

    VOUTR+VOUTR

    ZEROLZEROR

    27 DEC SSTBY15 CD ZDET14 CD XRST13 CD XCCE

    160LRCKOR-CH

    AU+5V

    IC7

    5

    6

    17

    18

    1312

    2322

    53 MEC_SELFSW

    45 MEC_INSW

    42 MEC_LIMIT

    12 CD BUCK11 CD BUS3

    38BUS2 10 CD BUS237BUS1 8 CD BUS136BUS0 7 CD BUS014SBSY 52 CD SBSY

    81 X1

    80 X0

    MEC LOAD43

    MEC EJECT44

    CDSYSTEM CONTROL

    IC3

    +1.5V REGIC6

    SYSTEM CONTROLIC501 (1/3)

    37 DEC XMUTE

    23 DAC ZDETR22 DAC ZDETL

    30 DEC INT

    SW2(SELF)

    46 MEC_DSWSW1(DOWN)

    SW3(DISC IN)

    SW4(LIMIT)

    56UNISI25RXD57UNISO

    58UNICKI50BUS ON51BU IN75RSTX

    67MECON CHK

    11.5V ON

    63MECON64CDON66ZMUTE

    60A ATT

    26TXD

    PD1

    E

    F

    LD

    MON OUT

    FCS+

    FCS

    TRK+

    TRK

    PD2

    AUTOMATICPOWER

    CONTROLQ1

    +1.5V ON/OFFSWITCH

    Q2,3

    AU+5V REGIC304

    CRYSTALOSCILLATOR16.9344MHz

    IC4

    R-ch is omitted due to same as L-ch.

    23X1

    12MHz

    XI

    MAIN SECTIONB

    UNI SI

    UNI SO

    ATT59LINK OFF LINK ON/OFF

    UNI CLKBUS ONB/U CHECKSYS RST

    CD ON IN

    VOUT

    74CDMON ON73

    61EJECT OK62OPEM REQ OPENREQ71

    EJECTOK72

    Z MUTE

    MECHA+6V

    63

    68CDON CHK

    15 VDD3CE

    SERVO+3.3V

    +1.5V

    +1.5V

    U COM+3.3V

    2

    3

    2

  • 1616

    CDX-NC9950

    CDX-NC9950

    3-2. BLOCK DIAGRAM MAIN SECTION

    1 ANT40

    SAIN

    SOUND CONTROL,ELECTRONIC VOLUME

    IC301

    J201(ANTENNA)

    TUX201(TUNER UNIT)

    I2C-BUS CONTROLLEDPOWER AMP,

    MULTIPLE VOLTAGEREGULATOR

    IC306

    SYSTEM CONTROLIC501 (2/3)

    CN801

    CN302

    (NV-BUS)

    41

    SAOUT

    R-CH (FRONT)R-CH (REAR)

    BATT

    42 MDL

    4 PDL+

    5 PD-7 PDR+

    43 MDR

    AMLAMR

    43

    10VCC(TU+8.3V)11TU VDD(TU+5V)15E2P VDD(B/U+5V)

    13TU SCL14TU SDA

    67

    S-METER

    9RDS 16 MPX

    16

    TU MUTE

    E2P SCL17E2P SDA

    BATT

    UNI SOUNI SI

    UNI CLK

    ATTLINK OFF

    BU CHECK

    BUS ON

    SYS RST

    RESET

    42 VSM

    VIN V OUT

    ON/OFF

    23 TU MUTE

    5 MOT+36 MOT-

    38 FP-IDET

    4

    9

    7

    1 6

    OPEN/CLOSEMOTORDRIVEIC702

    M601(OPEN/CLOSE)

    +9V REGIC703

    S601(OPEN)S602

    (CLOSE)

    85

    MUTE CONDITIONQUALITY

    55 MUTE CON39 QUALITY(RDS)

    22 NSMASK

    18 T.ROM SCK17 T.ROM SDA

    89 OPEN SW

    4 MOTOR ON

    AUDIO+8.3VTU+5VBACK UP+5V

    LR

    CD-L

    R-CH

    1416

    R-CH

    BUS GNDSWITCH

    Q301

    R-CH

    L

    R 17

    24

    OUTSW

    OUTLR

    25OUTLF

    53

    FL RR+FL RR

    RL RF+RL RF

    97

    2927

    35

    SW1

    R-CH

    SW2

    VPBATT

    3037

    AUDIO+BBU+B

    3133

    SERVO+3.3VMECHA+6V

    34PANEL+B

    TU+5V

    2221

    OUTRFOUTRR

    8MIX

    15MUTE

    2 SDA

    AUDIO+8.3VBACKUP+5VSERVO+3.3VMECHA+6VPANEL+9V

    4 SCL

    SDA

    D304

    SCL

    22 STB25 DIAG

    AUDIO+8.3V

    15

    13

    7

    10

    12

    11

    16

    19

    2

    4

    3

    56

    1312

    SCLSDASACLK

    SAOUTATT ON

    SCLSDA

    SCLSDA

    SCLSDA

    31I2C CKO50VOICE REQ

    32I2C SIO28VOL ATT

    3029

    AMP ONDIAG

    51BUIN

    90PARKING

    12 IN-RR FL+FL

    RL+RL

    FR+FRRR+RR

    AMP-REMANT-REM

    ACC

    PARKING

    11 IN-RF

    MUTEQ307

    MUTEQ302

    MUTEQ304

    DIGITALBOARD

    MUTE DRIVEQ306,308

    60SYS RST59BUS ON58UNICKO56UNISI

    57UNISO

    10 BUIN13 RESET12 BUS ON11 CLK IN8 DATA OUT9 DATA IN

    3BATT

    4CLK6DATA I/O

    456

    3

    8

    7

    21

    83ACC INACC CHECK

    Q803

    TU+5V REGQ201

    BACKUP+3.3V BACKUP+5V+3.3V REGIC504

    BATT

    D607

    D818

    TH601BATT

    CN601(BUS CONTROL IN)

    ATT86TEL ATTTEL ATT

    Q805

    R-CH

    MIX

    VOIC

    E RE

    Q

    ACC

    OUT

    R-CH

    F901

    L

    R

    AUDIO OUTREAR

    L

    R

    AUDIO OUTFRONT

    L

    R

    SUBOUT

    CD SECTION A

    DISPLAY SECTION C

    CD SECTIONB

    DISPLAY SECTIOND

    BATT

    14ILL85ILL IN

    ILL CHECKQ804

    13ACC OUT52AMUTE IN

    OVER VOLTAGEDETECT

    Q603

    BUS INTERFACEIC601

    RDS DEMODULATORIC201

    1BUS ON

    2RST

    D608

    BUS AUDIO IN/AUX IN

    BUS ONSWITCH

    Q602,605,606

    NS MASKSWITCH

    Q202

    5 OSCI

    4 OSCO

    VDDA

    10SCL9SDA

    SCLSDA

    8DAVN

    TU+5V

    14VDDD

    7

    46 DAVN(RDS)

    27 UNI AU

    X2014.332MHz

    3

    2

    1

    88 CLOSE SW

    I-DETIC701

    EQ AMPIC303

    23LROUT

    24LFOUT

    5 LRIN+

    2 LFIN+

    IC505

    ACC OUTSWITCH

    Q901

    ACC MUTEQ309

    D609

    D610

    64ATT

    Signal Path R-CH is omitted due to same as L-CH.

    : CD PLAY

    : FM

    MW/LW

    : BUS AUDIO/AUX

    (Page 15)

    (Page 17)

    (Page 15)

    (Page 17)

  • 17 17

    CDX-NC9950

    CDX-NC9950

    3-3. BLOCK DIAGRAM DISPLAY SECTION

    (Page 16)

    26

    96

    3

    7

    87

    61

    37

    62

    113

    3

    4

    RF+5V

    P13/INT

    XOUT

    XIN

    VDD

    6RESET

    RESET

    9D3X5034MHz

    X5013.68MHz

    X50232.768KHz

    BEEP

    LED_ON

    BATT

    RC IN141 RC IN0

    D503

    D506

    D507

    AD ON

    45 KEY ACK

    BACKUP +5VRF+5V

    BACKUP+3.3V

    TEMP-TR

    SIRCS

    100 FSW_SFT19910

    PGDDC ONBOOST

    SH3SO/FLSSO

    TH501

    7133

    SIRCSCONTROL

    IC503

    SYSTEM CONTROLIC501 (3/3)

    D218

    S200-205

    ROTARYENCODER

    ENC100,101

    ENC SW2ENC-2

    25SH3SI/FLSSI

    2

    98

    97

    95

    FLASH_P_ON

    DP_RST

    MST_PW

    DP_18VO

    12ENCSW2

    SA CLK

    SA OUT

    POWER ON

    D701,702

    D201-206,208,D220-226

    MAINSECTION

    C

    27

    12

    5 CT

    PG

    6 5V-SB9 STBY1

    BATT10 STBY2

    15 INA2

    OUT1D

    SWITCHINGREGULATORQ201,206,207

    POWERCONTROL

    +6V

    SHIFTQ101

    BOOSTQ104

    DP_PW

    34353637

    72

    1

    HSYNC

    VSYNC

    DCLK

    H3

    V3

    DCLK

    30 31

    9 1314

    12

    1 4

    ATT ON

    RF+5V

    DISP+9V

    KEYINO

    29OUT1U

    19OUT2D +9V

    17OUT2U

    +6.5V REGQ204

    +5V REGIC201

    5 1 1 4

    4-812-1619-23

    R.G.B

    RGB DECODER,RGB CONTROL

    IC801

    Q802

    SPR

    REVI

    REV0

    INVIN

    OUT1OUT2OUT3

    LBRSPL

    LPCLK

    SPRMOD

    LBRSPL

    LPDCLK

    61626567

    CLSSPSUBL

    MODE

    CLSSPSU/L

    1 4

    81

    35

    4

    +3.3V REGIC204

    BRIGHTCONTROL

    Q209

    BRIGHTCONTROL

    IC208

    CONTRASTCONTROL

    IC205

    DC-DC CONVERTERIC101

    DC-ACCONVERTER

    IC203

    CONVERTEROSC

    Q202,203

    DIMMERCONTROL

    IC200,Q200

    DIMMERCONTROL

    IC202

    7 16

    IRRECEIVERBUFFERIC206

    KEYMATRIX

    S209(RESET)

    VSS

    VDD

    COM

    VSHA

    VSHD

    V10V3

    V0

    LCD+5V

    LCD+3.3V

    6 2

    Q205

    +6.5V

    CONTRAST

    DIMRV402

    FLICKER

    LCD201

    DIGITAL BOARD

    T200

    BACK LIGHT

    RGB DRIVEIC207

    VOUTIC210

    +9V

    INV+6V

    59-5452-4744-39

    Hi R

    MASTER RXD

    MASTER TXD

    DP RST

    SYSTEM ON

    SIRCS

    MASTER PRO

    LEDDRIVE

    Q701,702

    BEEP DRIVEQ801BUZZER

    BZ801

    TRAYILLUMINATION

    MAINSECTION

    D

    R.G.B

    75 XRST

    76 RAMBU

    KEYACKNOWLEGE

    SWITCHQ501

    CNJ101(REMOTE IN)

    RF+5V SWITCHQ502,503

    ENC+2

    ENC SW1ENC-1ENC+1

    36KEYIN0

    81X1

    80X0

    78X0A

    77X1A

    93RE-1

    91RE-2 92RE+2

    11ENCSW1

    94RE+1 ENC+1ENC-1

    ENCSW1

    ENC+2ENC-2

    ENCSW2

    RESETIC502

    VIDEO

    BUS AUDIO IN/AUX IN

    +9V REGQ103

    +6V REGQ102

    {

    {

    D210 D212,215

    D214

    (Page 16)

  • 1818

    CDX-NC9950

    CDX-NC9950

    NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS3-4. CIRCUIT BOARDS LOCATION

    MAIN board

    DIGITAL board

    DISPLAY board

    SENSOR board

    SWITCH board

    SERVO board

    tuner unit(TUX201)

    WAVEFORMS

    MAIN BOARD

    SERVO BOARD (CD PLAY)

    THIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printedin each block.)For schematic diagrams.Note: All capacitors are in F unless otherwise noted. (p: pF)

    50 WV or less are not indicated except for electrolyticsand tantalums.

    All resistors are in and 1/4

    W or less unless otherwisespecified.

    f : internal component. C : panel designation.

    For printed wiring boards.Note: X : parts extracted from the component side. Y : parts extracted from the conductor side. a : Through hole. : Pattern from the side which enables seeing.(The other layers' patterns are not indicated.)

    A : B+ Line. B : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground

    under no-signal (detuned) conditions. CD mechanism section (1/2), (2/2) no mark : CD PLAY Main (1/4), (2/4), (3/4), (4/4) and Display sections no mark : FM

    ( ) : MW/LW< > : CD PLAY : Impossible to measure

    Voltages are taken with a VOM (Input impedance 10 M).Voltage variations may be noted due to normal produc-tion tolerances.

    Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.

    Circled numbers refer to waveforms. Signal path.J : CD PLAYF : FMf : MW/LWL : BUS AUDIO

    Caution:Pattern face side: Parts on the pattern face side seen from the(Side B) pattern face are indicated.Parts face side: Parts on the parts face side seen from the(Side A) parts face are indicated.

    QC

    These are omittedEB

    EThese are omitted

    CB

    CThese are omitted

    BE1 IC2 4 (FEI)

    Approx.1Vp-p0 V

    0.6 Vp-p

    16.9344 MHz

    Approx. 100 mVp-p

    50 mV/DIV, 5 msec/DIV

    0.5 V/DIV, 0.5 sec/DIV

    2 IC2 6 (TEI)

    200 mV/DIV, 5 msec/DIV

    6 IC2 oh (FPI2),

    0.5 V/DIV, 0.5 sec/DIV

    Approx. 400 mVp-p

    3 IC2 wd (XI)

    0.2 V/DIV, 0.2 sec/DIV

    7 IC3 ia (X1)

    0.5 V/DIV, 0.2 sec/DIV

    1.1 Vp-p

    12 MHz

    4 IC2 uj (RFI)

    0.5 V/DIV, 0.5 sec/DIV

    5 IC2 of (FNI2),og (FNI1)

    1.5 Vp-p

    oj (FPI1)

    1.5 Vp-p

    0 V

    1 IC201 4 (OSCD)

    1 V/DIV, 0.2 sec/DIV

    0.5 V/DIV, 0.2 sec/DIV

    2 IC501 uk (X0A)

    0.5 V/DIV, 0.2 sec/DIV

    32.768 kHz

    3 IC501 i; (X0)

    0.5 V/DIV, 0.2 sec/DIV

    4 IC503 4 (XOUT)

    5 Vp-p

    4.332 MHz

    2 Vp-p

    3.68 MHz

    2.2 Vp-p

    4 MHz

    2.8 Vp-p

    Note: The components identified by mark 0 or dotted linewith mark 0 are critical for safety.Replace only with part number specified.

  • 19 19

    CDX-NC9950

    CDX-NC9950

    1

    A

    B

    C

    D

    E

    F

    G

    H

    2 3 4 5 6 7 8 9 10 11 12 13 14

    SW3

    SW2

    MAIN BOARD CN401

    TP24

    TP40

    TP17

    TP14

    TP18

    TP37

    TP38

    TP39

    TP30

    FMA4

    FMA6

    FMA3

    TP48

    TP49TP51TP53

    FMA5C37

    C9

    C38C39

    C40C41

    C43

    C48

    R129

    R99

    C67

    C72

    FB3

    R132

    C82

    R88

    C85

    R89

    IC8

    R11

    1

    R6

    C77I

    C5

    R7

    C86

    C74

    C96

    C89

    C90

    C91

    C92

    C93

    C94

    R104

    R48

    R50

    R16

    R17

    R105

    R40

    R41

    R8

    R25 R26

    R84

    R86

    R122

    Q1

    IC6

    SW1(DOWN)

    C106

    R12

    0

    C65

    C81

    C64

    C19R

    123

    C20

    C61

    Q3

    FB4

    C29

    C22

    R65

    C32

    C51

    C35

    C45

    C62

    R11

    R9

    C57

    R10

    R30

    IC3

    R12

    FB2

    R106R107

    C6

    FB5

    R108

    R58

    R42

    FB8

    C73

    R43

    R109

    R94

    R95

    R96

    R47

    R54R

    56R

    57R

    66

    R68 R

    97

    R69

    R70

    R73

    C75

    R98

    R100

    R10

    1

    R13

    R21 R29

    R37

    R39

    R71

    R102

    C66

    R11

    0

    Q2

    IC7

    C7

    R103

    C101

    C102

    C80

    C103

    R130

    IC1

    IC4

    TP4

    TP3

    TP5

    TP33

    TP34

    TP35T

    P36

    TP41

    TP42

    TP47

    TP46

    TP25

    TP26TP27

    TP21

    TP22

    TP68

    TP93

    TP15

    TP64

    FMB3

    FMB4

    TP11

    TP86

    TP87

    TP10

    TP1

    TP6

    TP7

    TP8

    TP9

    TP12

    TP13

    TP16

    TP20

    TP32T

    P31

    TP66

    TP67

    TP74

    TP75TP76

    TP77

    TP78

    TP79TP80TP81

    TP82

    TP83

    TP84

    TP85

    TP90

    TP89

    TP88

    TP91

    TP92

    TP95

    TP97TP98

    TP99

    TP2

    TP63

    TP44

    TP43

    TP65

    TP62

    FMB5

    TP101

    TP23

    TP29

    CN1

    C76

    R4

    R115

    R24

    C100

    C70

    C84

    R5

    C78R92

    CN2

    R93

    R61

    C5

    R2

    R3

    X1

    X1

    IC2

    R121

    C10

    C4

    R11

    9

    C18

    C47

    C34

    R11

    8

    C17

    C23

    C42C99

    C16

    R125

    C36

    R62

    R117

    C21

    R116

    C24

    C31

    C28

    R12

    6

    C52

    R12

    7

    C49

    R128

    C53

    R63

    R64

    C79

    C13

    R28

    C104

    R1 R114

    C27

    R53R55

    R67

    R60

    R74

    R77

    R78

    R80

    R81

    R82

    R83

    R90

    R91

    C33

    R19

    R22R23

    R44

    R52

    R72

    C95

    R59

    C83

    C105

    R12

    4

    1-864-900-

    21

    21 1-864-900-

    21

    21

    A

    3-5. PRINTED WIRING BOARDS CD MECHANISM SECTION Refer to page 18 for Circuit Boards Location. : Uses unleaded solder.

    (Page 23)

    Ref. No. LocationIC1 G-2IC2 B-11IC3 D-2IC5 C-4IC6 D-1IC7 D-4IC8 D-4

    Q1 B-4Q2 C-1Q3 C-1

    SemiconductorLocation

  • 2020

    CDX-NC9950

    CDX-NC9950

    Refer to page 18 for Waveforms.3-6. SCHEMATIC DIAGRAM CD MECHANISM SECTION (1/2) Refer to page 30 for IC Block Diagrams.

    (Page 21)

    IC B/D

    IC B/D

    IC B/D

    CN1

    R6 R7

    TP34

    Q2 R86

    R84

    TP41

    TP36

    TP27TP26

    TP46

    TP30

    TP47

    R22

    R71

    R72

    R64

    R62

    R63

    R61

    R60R59

    R29

    TP68

    R37

    R39

    C84

    R88

    R26

    R40

    R44

    C61

    R25

    R41

    R95

    R94

    TP42

    TP12TP13

    TP20

    TP21 TP22

    TP25

    TP18

    TP17

    TP16

    TP15TP14

    R125R126

    R127R128

    R129

    C100

    TP29

    IC5

    R23

    R21

    R24

    TP93

    TP95

    C4

    C5

    C7

    C27

    C23

    C20C19

    C17

    C18

    C21

    C24

    C28

    C29

    C35C32

    C34

    C104

    C81

    C74

    C78

    C85

    C66

    C82

    R93

    C72C80

    Q3

    C86

    C70

    C89

    C96

    R110

    C92

    C90

    C91

    C94

    C102

    C53

    C51

    C62

    C49 C57

    C48

    C45

    C42

    FB2FB3

    C67

    R111

    R52

    C52C47

    C41

    C40

    C39

    C38

    C16

    C13

    C31

    R19

    C99 FB4

    C101 R123TP

    35

    TP33

    C36

    R132

    R5

    R4

    C93

    C79

    C77

    R92

    C76C75

    C73R89

    R130FB5

    R124

    C83

    FB8

    C95Q1

    C9

    TP37

    TP38

    TP39

    TP40

    IC7

    IC6

    C22R13

    IC8

    IC2

    R1

    C10

    C33R96

    R109

    R104

    R105R102

    R106

    R103

    R98

    R99R108

    R107

    R97

    R114

    R115

    IC4

  • 21 21

    CDX-NC9950

    CDX-NC9950

    Refer to page 18 for Waveform. Refer to page 30 for IC Block Diagram.

    3-7. SCHEMATIC DIAGRAM CD MECHANISM SECTION (2/2) Refer to page 36 for IC Pin Description.

    (Page 26)

    (Page 20)

    IC B/D

    R81R82

    R83

    R55 TP

    62TP5

    3

    TP51

    TP49

    TP48

    TP44

    TP65TP64

    TP63

    R47

    R73

    R30

    R58

    R48

    R50

    R54

    R56

    R66

    R68

    R69

    R67

    R65

    R57

    R53

    R11

    R10

    R8

    R9

    R70

    TP32TP31

    TP1

    TP2

    TP3

    TP4

    TP5

    TP10

    TP11

    TP43

    TP67

    TP66

    TP23TP24

    R11

    6R

    118

    R11

    9

    R120

    TP74

    TP75TP76

    TP77TP78

    TP79TP80TP81

    TP82TP83

    TP84TP85

    TP86TP87

    TP88

    TP89TP90

    TP91TP92

    TP97

    TP98TP99

    R28

    C43

    C64

    C65

    C106

    C37

    R78

    R77

    R91

    R90

    R80

    R117R122

    R42 R43

    R74

    R17

    R16

    R100

    R101

    IC1

    CN2

    R12

    TP7

    TP6

    TP9

    TP8

    SW4

    SW1

    SW3

    SW2

    M903

    M901

    M902

    C6

    R3

    R2

    C103

    X1

    R121 C105

    IC3

  • 2222

    CDX-NC9950

    CDX-NC9950

    3-8. PRINTED WIRING BOARDS MAIN SECTION Refer to page 18 for Circuit Boards Location. : Uses unleaded solder.

    1

    A

    B

    C

    D

    E

    F

    G

    H

    I

    23456891011121314 7

    R564

    Q103

    C341

    R812

    R813

    C321

    C320

    C314

    R407

    C814C815

    R11

    4

    C101

    C104

    C105

    C107 C109

    C110

    C112C113 C115

    C116

    C117

    C118

    IC501

    C206

    R535

    R212C302

    C316C317

    C323

    C324

    C326

    D701

    C328

    C330

    Q605

    C335

    C339

    R565

    C364

    C365

    C363

    Q602

    R504

    C503

    C506

    C507

    C508

    C511

    C810

    C517

    C518

    C521

    C701

    C703

    C706C707

    C708

    C709

    R574

    R505

    R101

    R102 R10

    4R105

    R10

    6

    R10

    8

    R10

    9

    R110R111

    R11

    2

    R11

    3Q202

    R30

    1

    R308

    R309R310

    R311

    R312

    R313

    R314

    R316

    R317 R204

    C312

    C904

    D810

    C208

    R353

    R602

    D603

    R508

    R509R510

    R519

    R512

    R513

    R515

    R517

    R520

    R521

    R522R523

    R524R531

    R905R540

    R542

    R543

    R544

    R545

    R54

    7

    R551

    R55

    0

    R907

    R608

    L402

    D609

    R706

    R707R708R709

    R803

    R804

    R805

    R807

    R808

    R810

    R814

    C512

    C303

    C305

    R119

    R327

    R211

    R324

    Q201

    R325 R326

    R514

    CN80

    2

    C204Q606

    R30

    7

    TH50

    1

    C901

    R534

    C121C122

    L101

    L103

    IC701

    C221

    D503

    D703

    Q803

    Q804

    Q805

    D508

    R502

    D509

    D811

    R304

    PNKORG

    GRYBLK

    WHTRED

    BLKYEL

    (1/2)

    BLKBLUGRNBRN

    BLK

    CN901

    1

    6

    Q308

    Q501

    R405

    R315

    C705

    Q104

    D702

    IC201L1

    02

    D30

    1

    R605

    IC7035 1

    1

    4 1

    5 8

    4 1

    5 8

    4

    8 5

    Q301

    IC504

    D602

    IC301

    IC303

    D805D803

    D801D807

    D809

    R210

    R356

    R355

    R354

    R603

    IC505

    R503Q306

    CN90

    1

    Q102

    IC101

    CN20

    2

    R511

    Q101

    D201

    Q30

    9

    D605

    C362

    C211

    R213

    R115

    R116

    R606

    C501

    D816

    R201

    D817

    R558

    R560

    R559R561

    IC304

    C409C410

    C223

    5

    1

    (NV-BUS)

    Ref. No. Location(D101) F-9(D102) F-9D201 E-2D301 E-5(D304) D-6D503 D-6(D504) E-7(D505) D-8(D506) D-7(D507) D-7D508 F-7D509 F-7(D510) I-8D602 C-10D603 C-10(D604) E-10D605 C-10(D607) E-10(D608) E-9D609 D-10(D610) E-9D701 I-8D702 I-8D703 F-10D801 C-7(D802) C-8D803 C-7(D804) C-8D805 C-7(D806) C-8D807 C-8(D808) C-8D809 C-7D810 C-7D811 D-8(D812) C-9(D814) C-9(D815) C-10D816 C-9D817 C-8(D818) C-9(D819) C-9(D901) D-6IC101 F-9IC201 E-3

    Semiconductor Location

    IC301 D-4IC303 C-3IC304 G-8(IC306) B-5IC501 E-7(IC502) D-6(IC503) I-8IC504 E-7IC505 D-6(IC601) E-10IC701 G-11(IC702) F-10IC703 E-11(IC801) G-8Q101 E-9Q102 G-9Q103 G-9Q104 F-10Q201 E-2Q202 D-2Q301 E-5(Q302) B-4(Q303) B-4(Q304) B-3(Q305) B-3Q306 D-6(Q307) B-2Q308 C-6Q309 E-5Q501 D-6(Q502) H-8(Q503) H-8Q602 F-10(Q603) E-10Q605 E-10Q606 E-10(Q701) E-11(Q702) F-10(Q801) I-9(Q802) G-8Q803 D-8Q804 E-8Q805 E-8(Q901) D-5

    Ref. No. Location

    ( ): SIDE B

  • 23 23

    CDX-NC9950

    CDX-NC9950

    1

    A

    B

    C

    D

    E

    F

    G

    H

    I

    2 3 4 5 6 7 8 9 10 11 12 13 14

    RFC

    -5

    (2/2)

    PAR

    KIN

    G

    DRIVER ASSY

    J201CNJ101

    CN601

    BUS AUDIO IN /AUX IN

    C816

    R333

    C203

    C120

    R202

    Q701

    R702

    R811

    R806

    Q502

    D506

    C821

    R402

    D604

    C114R107

    R20

    8

    R203

    C207

    R206

    R401

    Q603

    C310

    R303

    R318

    C352

    D607

    C311

    IC702

    C327

    D818

    C381 C382

    R346

    R541

    C515

    R552

    R607

    C411

    C103

    IC801

    R408

    C202

    C205

    R302

    C318C322

    C524

    R902C902

    R576

    C374

    L404

    R518

    R506

    R516

    R501

    C134Q503

    R546

    C516

    C513

    R539

    D90

    1

    C522

    D510

    R205R529

    C525

    R563

    R562

    R604

    Q802

    D102 Q702R704

    C372

    D608

    D814

    D81

    2

    R711

    R703

    Q303

    R610

    R90

    3

    IC601

    R33

    1R330

    R32

    9

    R705

    C903

    R334 R323

    R328

    C519

    R207

    C209

    R906

    R910

    D504

    R527

    C526

    R904

    R701

    C808

    C127

    C106D101

    C406

    C402

    R209

    R569

    R57

    5

    R801

    R322

    R525

    D610

    C702

    D808

    D304

    R609

    C528

    C704

    R809

    C502

    D507

    C603

    R557

    D802

    D804

    D806

    R802

    R567

    Q901

    Q307

    RL

    -1 -2 -3 -4 -5 -6

    SUBOUT

    RL

    CN302

    REAR

    RL

    C350

    R507

    R33

    8

    C354

    C353

    R901

    C820

    D815

    R81

    5

    Q801

    R410

    Q305

    IC503

    R33

    2

    C404

    Q302

    R33

    7

    C355

    R33

    6

    R33

    5

    R339

    R536

    D505

    Q304

    C371

    C108

    C128

    R710

    C514

    C130

    C301

    R306

    R411

    D81

    9

    R40

    9

    C822

    C119

    R404

    R532

    C414

    R57

    3R57

    2R

    571R

    570

    C527

    IC502

    IC306

    TH601CN303

    C325

    CN601

    C313

    C201

    C102

    C376C3

    33C343

    CN40

    1

    CNJ101

    C818

    C401

    C309

    C220

    C337

    C304

    C403

    C338

    C348

    C342

    C347

    C336

    C340

    C212

    C375

    C344

    C373

    C804

    C802

    C307

    C367

    C222

    C510

    C812

    C405

    C319

    X502

    C131C40

    7

    C806

    C345

    C520

    X201

    L501

    C416

    CN801

    C811

    C351

    C334

    C315

    BZ801

    C346

    TUX2

    01

    CN30

    1

    C136

    C219

    CN304

    CN70

    1

    L801

    C137

    C601

    X503

    X501

    FRONT

    AUDIO OUT

    (Page 19)

  • 2424

    CDX-NC9950

    CDX-NC9950

    Refer to page 18 for Waveform.3-9. SCHEMATIC DIAGRAM MAIN SECTION (1/4) Refer to page 31 for IC Block Diagrams.

    (Page 25)

    (Page 26) (Page 27)

    IC B/D

    IC B/D

    IC B/D

    IC303

    R211

    R212

    R304

    R30

    7

    R30

    8

    R30

    9

    R31

    0R

    311

    R313R314

    R316

    R318

    R32

    2R

    323

    R32

    4R

    325

    R32

    6R

    327

    R32

    8R

    334

    R339

    Q306

    R317

    R20

    2

    R346

    C902

    D901

    R907

    R209

    D304

    CN901

    R213

    R30

    6

    R905

    C325

    C313

    C201

    C304

    R903

    C344

    C222

    X201

    R904

    C315

    Q302

    Q303

    Q304

    Q305

    Q307

    C223

    C209

    R20

    3

    C204

    C211

    C208 C206

    C904

    C901

    C314

    C320

    C305

    C321

    C312 C316 C317

    C326C328

    C330

    C341C335

    C350

    C364C362C363

    C365

    C207

    R201

    C342

    C307

    C309C311C310

    C319

    C322R315R302

    R303 C303

    C302

    R301

    D301

    R312

    C318

    R205

    C212

    R206

    C301

    R204

    R208

    C205

    C203C2

    02

    R207

    C221C220 D201

    R901

    C903

    C340C343

    R329

    C348

    C347

    C346

    C345R330

    R331

    R332

    R333

    C353

    C352

    C355

    C354

    R338

    R337

    R335

    R336

    C338

    C351

    C336

    C337

    IC301

    C323

    C324

    J201

    Q202

    R902

    CN202

    Q301

    Q309

    CN301

    CN302

    C333

    C334

    R210

    C219

    TUX201

    Q201

    IC201

    Q901

    Q308

    C327

    C339

  • 25 25

    CDX-NC9950

    CDX-NC9950

    3-10. SCHEMATIC DIAGRAM MAIN SECTION (2/4) Refer to page 33 for IC Block Diagram.

    (Page 24)

    (Page 26) (Page 27)

    IC B/D

    D811

    D818

    R803

    R804

    R805

    R807

    R808

    R810

    R814

    D81

    4

    C375

    C804

    C802

    C812

    D815

    C811

    C374C381

    C382 C372

    C816

    R802

    C806

    D809

    D810

    C815

    C814

    D81

    9

    D81

    2

    C818

    F901

    R813R815

    R806

    R812

    R811R809

    D80

    2

    D80

    4

    D80

    6

    D80

    8

    D80

    7

    D80

    1

    D80

    3

    D80

    5

    R356R355

    C820

    C367

    C373

    C376

    C371

    CN304 CN303

    Q803

    Q805

    Q804

    R354

    R353CN801

    L801

    D81

    7

    D81

    6

    IC306

  • 2626

    CDX-NC9950

    CDX-NC9950

    Refer to page 18 for Waveforms. Refer to page 33 for IC Block Diagram.

    3-11. SCHEMATIC DIAGRAM MAIN SECTION (3/4) Refer to page 38 for IC Pin Description.

    (Page 21)

    (Page 24) (Page 25)

    (Page 27)

    IC B/D

    D504

    D505 D506

    D507

    D508

    D509

    D602

    D603

    D605

    D607

    D608

    IC504

    Q605

    Q606

    R501

    R502

    R503

    R504

    R505

    R513

    R514

    R516 R518

    R521

    R522

    R527 R529

    R534

    R539

    R540

    R542

    R543

    R544

    R546

    R547

    R557

    R558R559R560

    R561

    R562R563

    R567

    R570

    R571

    R572

    R573

    R603

    R604

    R605

    R606

    R607

    R609

    R610

    R517TH501

    R509

    R608

    R519

    R524

    R511

    R525

    R565R910

    R506

    R906

    R569

    R507

    R411

    R536

    IC505

    IC304

    R407

    IC502

    TP1R574

    L402

    C401

    C510

    C520

    L501

    C601

    X501

    C409

    C402

    R401

    C603

    C501

    C507

    C524

    C506C502

    C508

    C512

    C515

    C514

    C513

    C525C526C527C528

    C517

    C518C521

    C503

    R515

    R508

    R512

    R510

    R541

    C511

    R545

    R564

    R520 R523

    R532

    R531

    R535

    C810

    C416

    C407

    C406

    CN401

    CNJ101

    D609

    D610

    D604

    R602

    L404

    R405

    C405C411

    C403C414

    Q603

    Q602

    CN601

    R550

    IC601

    Q501

    D503

    X502

    TH601

    C410

    R402

    R404R410

    R408

    R409

    C404

    IC501

    C516

  • 27 27

    CDX-NC9950

    CDX-NC9950

    Refer to page 18 for Waveform.3-12. SCHEMATIC DIAGRAM MAIN SECTION (4/4) Refer to page 34 for IC Block Diagrams.

    (Page 26)

    (Page 24) (Page 25)

    IC B/D

    IC B/D

    DRIVER ASSY

    D101

    D102

    D51

    0

    IC703

    IC801

    L101

    Q502

    Q702

    R102

    R105

    R106

    R107

    R108

    R119

    R552

    R575

    R576

    R701 R704

    R705

    R707 R708 R709

    R104

    R109

    R116

    R110

    D701 D702

    CN701

    IC50

    3

    L102

    L103

    TP2

    C102

    C131

    C136

    C137

    C701

    C101

    C519

    C113

    C108

    C107

    C106

    C105

    C117

    C116C104

    C114

    C112

    C115C822

    C821

    C134

    R801

    R112

    R111

    C130

    C118R113

    C119

    C120

    C127

    C128C122

    C121

    R114

    C109C103

    R115

    R101 C110

    C808

    C522

    R551

    C706C707

    C708 C709C705C704R711R710

    C703

    C702

    IC702

    R706

    R702

    R703

    Q102

    Q103

    Q801

    Q802

    Q101

    Q104

    IC701

    S601

    S602

    M601

    CN802

    BZ801

    IC101

    D703

    Q701

    Q503

    X503

  • 2828

    CDX-NC9950

    CDX-NC9950

    3-13. PRINTED WIRING BOARD DISPLAY SECTION Refer to page 18 for Circuit Boards Location. : Uses unleaded solder.

    1

    A

    B

    C

    D

    E

    F

    G

    H

    I

    2 3 4 5 6 7 8 9 10 11 12 13 14

    S209

    TH200

    S205

    S204

    S203

    S202

    S201

    S200

    D223

    D221

    D22

    0D

    224

    D225

    D22

    6

    D222D202

    D20

    8

    D204

    D20

    3

    D206

    D20

    5

    D201

    R226

    R224

    R205

    R204

    R220 R217

    C251

    C250

    C246

    C245C237

    C236C23

    5

    C234C233

    C232C231

    C230

    C229

    R206

    C227

    C225

    C219

    C218

    C217

    C213

    C212

    C208

    C207C205

    C201C239

    C228

    C247

    C244

    C240

    C226

    C224

    C223

    C215

    Q200

    C214

    C204

    C249

    C248

    R20

    2

    C222

    C221C210

    C209

    R273

    R26

    0

    R259

    R248

    C220

    R241

    R244

    RV402

    R221

    R242

    CN202

    C206

    C202

    R22

    2

    C200

    R268

    R255

    R25

    4

    R253

    R252

    R251

    R25

    0 R24

    9

    R247

    R246

    R245

    R243R240

    R239

    R238

    R23

    7

    R236 R235

    R272

    R23

    3

    R232

    R231

    R230

    R229

    R22

    8

    R225

    R223

    R234

    C252

    R227

    R29

    8

    R219

    R214R213R212R211

    R210

    R216R20

    1R203

    R200

    RA223

    RA222RA221

    RA2

    20

    RA210

    RA209

    RA208 RA207RA206RA205

    T200

    C253

    Q203

    Q202

    Q201

    Q20

    6

    Q205

    Q204

    Q207

    L200

    L201

    IC207

    IC20

    8

    IC205

    IC204

    IC202

    IC201

    IC206

    IC210

    C211

    IC200

    L202

    C254

    FB90

    3

    D219

    D21

    6

    D213

    D200

    D21

    7

    D215

    D21

    4

    C255

    D212

    D21

    1

    D210

    D207

    C256

    C203

    CN200

    IC203

    CN201

    R21

    5

    R21

    8

    Q209

    D218

    ENC100

    ENC101

    Ref. No. LocationD200 G-10D201 C-3D202 B-3D203 C-1D204 B-2D205 D-2

    Semiconductor Location

    D206 C-2D207 H-10D208 A-2D210 H-6D211 G-6D212 H-6

    D213 F-3D214 G-6D215 H-6D216 H-12D217 H-11D218 E-2

    D219 F-4D220 D-14D221 C-14D222 B-13D223 C-13D224 C-14

    Ref. No. Location Ref. No. Location Ref. No. LocationD225 B-14D226 B-14

    IC200 H-10IC201 H-10IC202 G-10

    Ref. No. LocationIC203 H-6IC204 H-9IC205 H-12IC206 F-3IC207 G-3IC208 H-7

    IC210 G-7

    Q200 H-10Q201 G-9Q202 G-8Q203 G-9

    Q204 H-10Q205 G-6Q206 G-10Q207 H-9Q209 H-7

    Ref. No. Location Ref. No. Location Ref. No. Location

  • 29 29

    CDX-NC9950

    CDX-NC9950

    IC B/D

    R228

    R239

    R240

    R243

    R245

    R246

    R250

    R252

    R253

    R255R249

    D218

    IC200

    R200

    R259

    R211R212R213R214

    R223

    R225

    R233

    R236

    R273

    R242

    R248

    R244

    R241

    R251

    R260

    D207

    D212 D215

    D217

    D21

    6

    Q206

    L201

    R210

    IC201

    IC204

    R238

    R237

    IC202

    IC208

    D210

    IC203

    IC210

    IC205

    R232

    R235

    Q201 Q207

    R201

    R202

    R203

    R216

    R218

    R219 R222

    R234 R272

    R298

    R221R227

    D20

    0

    D21

    3

    R206

    TP105

    TP100

    TP104

    TP103

    RV402

    L200

    C204

    C206 C210

    C213

    C225

    C228C254

    C222

    C224

    C234

    C232

    C226C219

    C231

    C255 C256

    C220 C203

    C202

    C235

    C237

    C239 C240

    C227

    C230

    C229

    C251

    C252

    C253

    CN202

    C250

    C246

    C248

    C249

    CN201

    C207

    C205

    C209C200 C201

    C221

    C218

    C211

    C247

    R268

    R24

    7

    C236

    C233

    R254

    R230

    R229 R231C214

    C217

    C212

    C244C245

    ENC101ENC100

    C223D211

    D214C215

    S200 S201 S202 S203 S204 S205

    C208

    IC207

    LCD201

    Q204

    TP101

    TP102

    Q205

    S209

    Q200

    CN200

    IC206

    FB903

    RA223

    RA222

    RA221

    RA220

    Q209

    RA206

    L202

    RA207

    RA208

    RA209

    RA210

    RA205

    T200

    TH200

    D219

    Q202Q203

    D220 D221 D225 D222 D202 D204 D206

    D201D203D205D208D224D223D226

    R226 R204 R205 R224 R217 R220 R215

    3-14. SCHEMATIC DIAGRAM DISPLAY SECTION Refer to page 35 for IC Block Diagram.

  • 3030

    CDX-NC9950

    CDX-NC9950

    IC2 TC94A60MFG-301 (SERVO Board (1/2))

    IC BLOCK DIAGRAMS

    IC6 R1114N151D-TR-FA (SERVO Board (1/2))

    76

    77 EFM SLICE

    79

    78

    82

    83

    84

    88

    RFRP

    VCOSLCO

    RFI

    RFRPI

    REFQO

    RESIN

    VRO

    VMDIR

    TESTR

    INVSEL

    AGCI

    RFDCI

    RFO

    PNSEL

    EQSET

    RVDD3

    LDO

    MDI

    RVSS3

    FNI2FNI1FPI2FPI1

    TPI

    TNI

    FTE

    RFZI

    AVSS

    3

    RFRP FE

    ISB

    AD/R

    FDC

    TEI

    TEZI

    AVDD

    3

    FOO

    TRO

    VREF

    FMO

    DMO

    SBSY

    SBOK IP

    F

    SFSY

    GPIN

    VDD1

    5

    ZDET

    VSS1

    5XV

    SS3 XI XO

    XVDD

    3

    PVSS

    3

    VCOR

    EF

    VCOF

    PVRE

    FLP

    FO

    LPFN

    TMAX

    PDO

    PVDD

    3

    AWRC

    VSS1

    5VD

    D15

    LRCK

    IBC

    KIAI

    N

    LRCK

    OBC

    KO

    DOUT

    PIO3

    AOUT

    PIO2

    PIO1

    PIO0

    TEST

    C

    VDDP

    VCOIVSSPTESTD

    IO1IO0

    FGIN

    VDDT

    STBY

    /RST

    /CCEBUCKBUS3BUS2BUS1BUS0VSS15

    VDDMVDD3VSS3DVSS3

    LO

    DVR

    DVDD3

    RO

    DVSS3

    AUDIOOUT

    DIGITALOUT

    PLLTMAX

    RFEQ

    85 AGC

    86 RFDC

    87 RF

    RAMDIGITAL EQAUTO ADJ. ROM

    91APC

    92

    94

    FE95

    98TE

    99

    100

    21 3 54 6 7 8 9 10 11 12 13 20 21 2214 15 16 17 1918

    9697

    80VRO

    81

    89

    90

    93

    23

    ANA.LPF

    24 25

    SYNC SIGNAL PROTECTIONEFM DEMODULATION

    69 68 63 62 61 56 55 54 53

    50

    45

    44

    43

    41403938373635

    34333231

    30

    29

    28

    27

    26

    42

    4948

    4647

    60 59 58 57 52 5166 65 6467707475 73

    1-BITDAC

    CLOCKGEN.PWM

    SUBCODEDEMODULATION

    CIRCUIT

    16KRAM

    ADDRESS CIRCUITCPUI/F

    CORR

    RECT

    ION

    CIR

    CUIT

    5-BITR-2R DAC

    SERVOCONTROL

    10-BITSAR ADC

    72 71

    CLV SERVO CAV SERVO

    AWRC

    1

    VREF

    VDD

    GND

    CE

    CURRENTLIMIT

    2

    3

    5 VOUT

    NC4

    IC5 PCM1793DBR (SERVO Board (1/2))

    IC1 BA5968FP-E2 (SERVO Board (2/2))

    1

    2

    11

    13

    14

    12

    LEVELSHIFT

    LEVELSHIFT

    LEVELSHIFT

    LEVELSHIFT

    MUTE

    FWD

    FWD

    LDCTL

    NC

    OPOUT1

    NC

    NC

    OPOUT2

    POWVCC VCCVOL

    VOL+

    VOL2

    VOL2+

    VO1

    VO1+

    REV

    OPIN4+

    OPIN4

    OPOUT4

    OPIN3+

    OPIN3

    OPOUT3

    MUTEVOL+GND

    VOL3

    VOL3+

    VOL4

    VOL4+

    REV

    OUTR OUTF

    10

    98

    7

    6

    5

    28

    27

    26

    25

    24

    23

    22

    212019

    18

    17

    16

    15

    4

    3

    1

    SYSTEMCLOCK

    MANAGERZERO

    DETECT

    23

    456

    7891011

    14

    12

    13

    18

    2223

    2425262728

    192021

    17

    1615

    AUDIODATA INPUT

    I/F

    CURRENTSEGMENT

    DACAND

    I/F BUFFERCURRENTSEGMENT

    DACAND

    I/V BUFFER

    BIAS AND VREF

    X8OVERSAMPLING

    DIGITALFILTER

    ANDFUNCTIONCONTROL

    ADVANCEDSEGMENT

    DACMODULATORFUNCTION

    CONTROLI/F

    POWER SUPPLY

    FMT2FMT1

    LRCKBCK

    DATA

    MUTESCK

    DGND

    RST

    VDD

    AGNDFVCCR

    VOUTR

    VOUTR+

    VCOM

    AGNDR

    FMT0DEMP1DEMP0

    ZEROLZEROR

    VCCF

    VOUTL

    VOUTL+

    AGNDCVCCC

    VCCLAGNDL

  • 31

    CDX-NC9950

    IC301 TDA7416 (MAIN Board (1/4))

    1 2 3 4 5 6 7 11

    MAINSOURCE

    SELECTORREAR

    SELECTOR

    1516

    21

    INPUTMULTIPLEXER

    NC NCAU

    XRPD

    L+PD

    L- NCPD

    R+

    8

    MIC NC

    GND NC

    OUTL

    F

    25

    OUTL

    R

    24 23

    NC

    MUTESAOUT

    17 OUT-SW

    OUTRR

    ACIN

    R

    33

    ACIN

    L

    31

    ACOU

    TL

    32

    IN-GAIN

    POWERSUPPLY

    SOFTMUTE

    MAINVOLUME

    7 BANDEQUALIXER

    SOFT STEPFADER

    SOFT STEPFADER

    HIGH PASSFILTER2

    MIXER

    MIXER

    SUBWOOFERFILTER

    HIGH PASSFILTER

    LOUDNESS

    FADER II2CBUS

    SOFT STEPFADER

    HIGHPASS

    FILTER2

    37ACOUTSW36ACINSW

    35ACOUTR34NC

    9 10

    SOFT STEPFADER

    SOFT STEPFADER

    ZEROCROSS

    SPECTRUMANALIZER

    FILO

    L

    26

    AC2O

    UTL

    27

    AC2I

    NL

    28

    VREF

    OUT

    30

    VDD

    29

    13 SCL

    SAIN

    12 SDA

    14

    18 FILOR19 AC2OUTR20 AC2INR

    22 OUTRF

    4041424344AUXL

    MDRMDLAMRAML

    38CREF39NC

  • 32

    CDX-NC9950

    IC201 SAA6588T/V2-518 (MAIN Board (1/4))

    IC303 LA2901V-TLM-E (MAIN Board (1/4))

    124

    2

    3

    4

    5

    6

    7

    VREF

    VREF VCC

    VCC

    VREF

    23

    21

    22

    20

    17

    14

    13

    19

    18

    16

    15

    VREF

    VREF

    VCC

    VCC

    VREF

    8

    9

    10

    11

    12 SIGNALAMP

    SIGNALAMP

    SIGNALAMP

    SIGNALAMP

    LIFTAMP

    LIFTAMP

    LFIN-

    LFIN+

    N.C

    LRIN-

    LRIN+

    RFIN+

    RFIN-

    N.C

    DCL

    DCR

    LFOUT

    LROUT

    RFOUT

    RROUT

    VCCL

    VCCR

    LGND

    RGND

    LIFTLVD

    LIFTLOUT

    LIFTROUT

    LIFTROUT

    RRIN+

    RRIN-

    SCOU

    T

    MRO

    MPT

    H

    TCON

    OSCO

    OSCI

    VSSD

    VDDD

    DAVN SD

    A

    VREF

    MPX

    VSSA

    VDDA

    AFIN

    MAD

    PSW

    N

    SCL

    21 6

    15 111316 14 12

    INTERFACEREGISTER

    SIGNAL QUALITYDECODER

    CLOCKEDCOMPARATOR

    POWER SUPPLY& RESET

    TESTCONTROL

    OSCILLATOR& CLOCK

    PAUSEDETECTORMULTI

    PATHDETECTOR

    57kHz8th ORDER

    BAND-PASS FILTER

    RDS/RDBSDECODER

    RDS/RDBSDEMODULATOR

    IIC BUS SLAVETRANSCEIVER

    1718

    CIN

    19LV

    IN20

    87

    DATA

    CLOCK

    DATA

    CLOCK

    44

    5

    9 103 4 5

  • 33

    CDX-NC9950

    IC601 BA8271F-E2(MAIN Board (3/4))

    1

    2

    3

    456

    7 8

    9

    10

    14

    131211

    BUS ONSWITCH

    RESETSWITCH

    BATTERYSWITCH

    BUS ON

    RST

    BATT

    CLKVREF

    GND

    VCC

    RESETBUS ONCLK INBU IN

    DATA IN

    DATA OUT

    DATA

    IC306 TDA8588AJ/N2 (MAIN Board (2/4))

    MUT

    EM

    UTE

    ENABLELOGIC

    STANDBY/MUTE

    BATTERYDETECTION

    CHIP DETECT/DIAGNOSTIC

    PROTECTION/DIAGNOSTIC

    SWITCH

    REGU

    LATO

    R

    SWITCH

    REFERENCEVOLTAGE

    LOADDUMPPROTECTION

    TEMPERATUREPROTECTION

    BACK-UPSWITCHREGULATOR

    1

    3

    5

    7

    9

    11

    13

    15

    17

    19

    21

    23

    25

    27

    29

    31

    33

    35

    37

    2

    4

    6

    8

    10

    12

    14

    16

    18

    20

    22

    24

    26

    28

    30

    32

    34

    36

    TAB

    OUT-FL

    OUT-FL+

    OUT-RL

    OUT-RL+

    IN-RL

    S-GND

    IN-RR

    OUT-RR+

    OUT-RR

    OUT-FR+

    OUT-FR

    DIAG

    ANT-REM

    AMP-REM

    SERVO3.3V

    MECH6V

    VP

    BU+B

    SDA

    SCL

    VP2

    PGND1

    SVR

    IN-FL

    IN-FR

    BEEP

    PGND3

    VP1

    STB

    PGND4

    RST

    CRES

    AUDIO+B

    GND

    PANEL+B

    CBU

    FL

    RL

    RR

    VP

    FR

    I2C BUS

  • 34

    CDX-NC9950

    IC101 TPS5120DBTR (MAIN Board (4/4))

    1

    VREF

    INV2

    INV1

    SFT1 SFT2

    INV2

    INV1

    PGCOMP4

    UVLO SIGNAL UVLO COMP

    PGCOMP2

    PGCOMP1

    ERR AMP

    PGCOMP3

    SOFTSTART2

    SOFTSTART1

    PHASEINVERTERTIMER

    CURRENTPROTECTION

    TRIGGER

    DLY

    PWM COMP

    5VREG

    DLY

    DLY

    DLY

    OSC

    ERR AMP

    INV1

    FB1

    SS1

    CT

    PWM/SKIP

    5V SB

    GND

    REF

    STBY2

    FLT

    PG

    SS2

    FB2

    INV2

    STBY1

    LSD TRIP

    HSD TRIP

    STBY1OVP1

    OVP2

    UVP1

    UVP2

    PWM COMP

    VCC

    LH2

    OUT2U

    LL2

    LSD TRIP

    HSD TRIP

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    17

    18

    OUT2D19

    OGND220

    REG5I21

    VREF522

    TRIP223

    VCC24

    TRIP125

    OGND126

    LH130

    OUT1D27

    LL128

    OUT1U29

    STBY2

    UVLOSIGNAL

    SKIPCOMP

    SKIPCOMP

  • 35

    CDX-NC9950

    IC702 LB1930M-TLM-E(MAIN Board (4/4))

    IC206 RRX9000-0601#1 (DISPLAY Board)

    12

    3

    4

    5 6

    789

    10VCC

    RIN

    SGND

    FIN

    NCNC

    OUT2NC

    PGND

    OUT1CONTROLCIRCUIT

    MOTORDRIVE

    CIRCUIT

    BUFFER

    BUFFER

    16

    1 2 3 4 5 6 7 8

    15 14 13 11 1012 9L IN

    L IN GNDL

    V STBY VCC NC NC VPO NC

    GND A V IN V AGC LNS VCO NCGND

    C

    INPUTSLAGE

    320kHz

    AGC

    320kHz/500kHz PULSE

    COUNTER

    PULSEFORMER

    NOISESUPPRESSION

    BANDGAPREFERENCE

  • 36

    CDX-NC9950

    IC PIN DESCRIPTIONS IC3 MB90487APFV-G-142-BNDE1 (CD SYSTEM CONTROL) (SERVO BOARD (2/2))

    Pin No. Pin Name I/O Pin Description1 NC O Servo 1.5 V power supply control signal output

    2 to 6 NC Not used. (Open)7 CD BUS0 I/O Bus data signal input/output 08 CD BUS1 I/O Bus data signal input/output 19 VSS Ground pin

    10 CD BUS2 I/O Bus data signal input/output 211 CD BUS3 I/O Bus data signal input/output 312 CD BUCK O Bus clock signal output13 CD XCCE O Chip enable signal output14 CD XRST O Reset signal output15 CD ZDET I Zero detection signal input

    16 to 20 NC Not used. (Open)21 VCC Power supply pin (+3.3 V)22 DAC ZDETL I Zero data detection signal input (L-ch)23 DAC ZDETR I Zero data detection signal input (R-ch)24 NC Not used. (Open)25 RXD I UART RXD data signal input (MCBUS/Flash data input)26 TXD O UART TXD data signal output (MCBUS/Flash data output)27 DEC SSTBY O SRAM STANDBY mode control signal output

    28, 29 NC Not used. (Open)30 DEC INT I Request signal input

    31, 32 NC Not used. (Open)33 AVCC Power supply pin (+3.3 V) for A/D converter34 AVRH External reference voltage for A/D converter35 AVSS Ground pin36 NC Not used. (Open)37 DEC XMUTE O Mute signal output L: mute

    38, 39 NC Not used. (Open)40 VSS Ground pin41 NC Not used. (Open)42 MEC LIMIT I Sled limit in detection switch signal input43 MEC LOAD O Loading motor signal output (Load direction)44 MEC EJECT O Loading motor signal output (Eject direction)45 MEC INSW I Pack-in detection signal input46 MEC DSW I Chucking end detection switch signal input

    47, 48 MD0, MD1 I CPU operation mode designation signal input (Connect to Vcc.)49 MD2 I CPU operation mode designation signal input (Connect to Vss.)50 BUS ON I Bus on signal input L: bus on51 BU IN I Backup on/off signal input H: backup on, L: backup off52 CD SBSY I SUBQ sync signal input L: interruption53 MEC SELFSW I Disc insert detection switch signal inp