service manual

DV438SI(RU)DV437SI(RU)

Ver SI10.12

Ver SI10.11

DV438SI

DV437SI

1.1 Safety precautions

1.1.1 Power supply

1.1.2 Precautions for antistatic

1.1.3 Precautions for laser head

1.1.4 A out placement position

1.2 Maintenance method

1.2.1 Visualized method

1.2.2 Electric resistance method

1.2.3 Voltage method

1.2.4 Current method

1.2.5 Cutting method

1.2.6 Element substitution method

1.2.7 Comparison method

1.3 Required device for maintenance

Chapter Two Functions and Operation Instructions

2.1Features

2.2

2.2.1

2.2.2

2.2.3

2.2.4

2.3

2.4

2.4.1

2.4.2

2.4.3

2.4.4

2.4.5

Chapter One About Maintenance

Controls and functions

Front and side panels control

Rear Panel general view

LED display general view（NO DISPLAY FOR DV437SI）

Remote Control general view

Set list

FUNCTION SETTINGS

Function selection and change

Language settings

Image settings menu

Sound settings menu

Playback settings

1

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2

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9

Catalog

2.4.6 Karaoke

2.4.7 Preference

2.4.8

2.4.9

2.4.10

Chapter Three Block Diagram

3.1 OVERALL WIRING DIAGRAM FOR PLAYER

3.2 BLOCK DIAGRAM FOR PLAYER

Chapter Four Block Diagram of Unit Circuit

4.1 Servo Circuit

settings menu

settings

Parental Control

Initial setup menu

Reset to defaults

2.4.11 Exit setting menu

2.4.12 Channel delay set-up

2.5 MISCELLANEOUS

2.5.1 Useful notes

2.5.2 Trouble shooting

2.5.3Specification

4.2 Decode Circuit

4.3 Video Circuit

4.4 Audio Circuit

4.5 Power Circuit

Chapter Five Troubleshooting Flow Chart

Chapter Six Waveform Diagram

Chapter Seven PCB board

7.1 Surface layer of Decode Board

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13

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7.8 USB Board

7.2 Surface layer of AV Board

7.3 Bottom layer of AV Board

7.4 Power Board

7.6 Surface layer of Main Pane

7.7 Bottom layer of Main Panel

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28

29

29

29

l

7.5 28

Surface layer of

Power BoardBottom layer of

28

7.9 Surface layer of OK Board

8.0 Bottom layer of OK Board

Chapter Eight

Decode Board

8.2 Power Board

8.3 Main Panel (DV437SI)

USB Board

Chapter Nine BOM List

Circuit Diagram

30

30

31

31

34

35

37

38

8.1

8.5

8.4 Main Panel (DV438SI) 36

Caution : This service manual is only applicable to DV437SI (RU) SI10.11

This service manual is only applicable to DV438SI (RU) SI10.12

Chapter One About Maintenance

1.1 Safety precautions

1.1.1 Power supplyWhen maintenance personnel are repairing DVD players, he should pay special attention to the

power board with 220V AC and 330V DC which will cause hurt and damage to persons!

1.1.2 Precautions for antistaticMovement and friction will both bring static electricity which causes serious damages to integrated

IC. Though static charge is little, when a limited quantity of electric charge is added to large-

scaleintegrated IC, as the capacitance is very small in the meantime, now the integrated IC is very much

easy to be struck through by static electricity or the performance will decrease. Thus static electricity

prevention is of extraordinary importance. The following are several measures to prevent static

electricity:

1. Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth,

and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity

device. The length and depth of the metal embedded under the earth should be determined according to

the wettability of the local soil. For humid places, it may be shorter, and longer and deeper for dry places.

If possible, it can be distributed and layed in terms of “#” shape.

2. On operating table-board, the antistatic table cushion should be covered and grounded.

3. All devices and equipments should be placed on the antistatic table cushion and grounded.

4. Maintenance personnel should wear antistatic wrist ring which should be grounded.

5. Places around the operating position should also be covered with electric conduction cushion or

Painted with antistatic paint.

1.1.3 Precautions for laser head1. Do not stare at laser head directly, for laser emission will occur when laser head is working, which

will Hurt your eyes!

2. Do not use wiping water or alcohol to clean laser head, and you may use cotton swab.

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1.1.4 About placement position1. Never place DVD player in positions with high temperature and humidity.

2. Avoid placing near high magnetic fields, such as loudspeaker or magnet.

3. Positions for placement should be stable and secure.

1.2 Maintenance method

1.2.1 Visualized methodDirectly view whether abnormalities of collision, lack of element, joint welding, shedding welding,

rosin joint, copper foil turning up, lead wire disconnection and elements burning up among pins of

elements appear. Check power supply of the machine and then use hands to touch the casing of part of

elements and check whether they are hot to judge the trouble spot. You should pay more attention when

using this method to check in high voltage parts.

1.2.2 Electric resistance methodSet the multimeter in resistance position and test whether the numerical value of resistance of each

point in the circuit has difference from the normal value to judge the trouble spot. But in the circuit the

tested numerical value of resistance is not accurate, and the tested numerical value of integrated IC's

pins can only be used for reference, so the elements should be broken down for test.

1.2.3 Voltage methodVoltage method is relatively convenient, quick and accurate. Set the multimeter in voltage position

and test power supply voltage of the player and voltage of a certain point to judge the trouble spot

according to the tested voltage variation.

1.2.4 Current methodSet the multimeter in current position and test current of the player of a certain point to judge the

trouble spot. But when testing in current method, the multimeter should be series connected in the

circuit, which makes this method too trivial and troublesome, so it is less frequently used in reality.

1.2.5 Cutting methodCutting method should be combined with electric resistance method and voltage method to use.

This method is mainly used in phenomena of short circuit and current leakage of the circuit. When

cutting the input terminal voltage of a certain level, if voltage of the player rises again, it means that the

trouble lies in this level.

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1.2.6 Element substitution method When some elements cannot be judged good or bad, substitution method may de adopted directly.

1.2.7 Comparison methodA same good PC board is usually used to test the correct voltage and waveform. Compared these

data with those tested through fault PC board, the cause of troubles may be found.

Through the above maintenance method, theoretical knowledge and maintenance experience, all

difficulties and troubles will be readily solved.

1.3 Required device for maintenance Digital oscillograph ( 100MHE)

TV set

SMD rework station

Multimeter

Soldering iron

Pointed-month pincers

Cutting nippers

Forceps

Electric screw driver

Terminals connecting cord

Headphone

Microphone

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2.1 FeaturesCompatible Disc Types#Digital video playback: DVD-video, super VCD, VCD compatibility#MPEG-4 standard support: compatibility with DivX3.11, DivX4, DivX5, DivX Pro, XviD compressed video files#Digital audio playback: CD(CD-DA)and HDCD compatibility#Fully compatible with compressed audio files such as MP3,WMA and OGG Vorbis formats#Playback of DVD-Video, VCD, CD+G Karaoke discs#Digital graphic albums playback: Kodak picture CD, JPEG compatibility Audio#192 kHz/24 bit Audio Digital/Analog converter#Coaxial and optical outputs for Dolby Digital/DTS/LPCM digital audio#Mixed audio output for amplifier and TV connection#Digital multi-channel decoders, providing Dolby Digital/DTS audio stream playing#Built-in Dolby Pro Logic ll decoder makes available to convert stereo signal into multi-channel#MIC input for karaoke function(only for models DV611SI,DV615SI,DV624SI ,DV626SI,DV628SI)#Headphones output(only for models DV626SI,DV628SI)Video#Progressive Scan Output(Y Pb Pr) producing flicker-free and stable images#Composite, component(Y Cb Cr), S-Vidio and RGB/SCART outputs for various types ofConnections#Capable of playing NTSC/PAL discs written in NTSC system#Multiple dubbings, angles, subtitles support#Sharpness,gamma, brightness, contrast, hue, saturation adjustmentOthers#Compatible disc types: CD-R/CD-RW,DVD-R/DVD-RW,DVD+R/DVD+RW#USB interface to connect Mp3 player, flash card or digital camera#KARAOKE+ system, expanding karaoke function#Russia, Cls and Baltic States adaptation interface and filenames, ID3-tags and CD-Text support simplifies device operation#"Memory” function enables to save the last position after stop playback#"Q-Play” function provides direct playback and allows to skip commercial impossible to rewind#"Virtual Keyboard” function provides more convenient DVD playback control#"Browser” function provides easy access to playback control#Automatic Screensaver function#Parental control function to protect children from watching inappropriate discs#Super wide range of operating power supplies (~110-250v,50/60 Hz), automatic short circuit protection

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Chapter Two

Functions and Operation Instructions

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2.2 Controls and functions2.2.1 Front and side panels control

1 POWER button(Press to switch ON/OFF

the device)

OPEN/CLOSE button(Press to open/close

the disc tray)

The indicator of operating mode/Standby mode

Sensor of infrared beams

2

3

Microphone input

STOP button(Press to stop the playback)

PLAY/PAUSE button(Press to

playback/pause)

Disc tray

USB port

Phones jack5

6

7

8

9

10

11

NOTE:#Presence and location of the buttons, sockets and regulators depend on a model of DVD player.

29

2.2.2 Rear Panel general view

Stereophonic audio output

Socket of video output S-Video

Socket of composite video output

1

2

3

4

5

5Socket of coaxial digital audio output

SCART socket

NOTE:#Presence and location of the buttons, sockets and regulators depend on a model of DVD player.

12 8 359 106

35 9106

DV437SI

DV438SI

15

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2.2.3 LED display general view

Playback time

2.2.4 Remote Control general view

[ ]

[ ]

[ ]

[ ]ButtonPress to open / close the disc tray.LANG ButtonPress to change the languageMEM buttonPress to memorize the point where playback was stopped/playback from the previously memorized point.DISP buttonPress to display the disc information.NUMeric buttonsBROWSE buttonPress to turn on/off the browser function Cursor buttons(UP/DOWN/LEFT/RIGHT)SETUP buttonPress to switch to setup mode.ButtonPress to turn on/off the Virtual Keyboard function.KARAOKE buttonPress to set karaoke function.ButtonPress to reverse scanning.ButtonPress to playback from the previous point.REPEAT buttonPress to repeat playback.A-B buttonsPress to repeat the selected portion.ButtonPress to turn on/off the sound.VOLUME+/-buttonPress to adjust the volume.DVD/USB button Press to switch DVD/USB models.ButtonPress to playback from the following point.ButtonPress to stop playback.ButtonPress to forward scanning.ButtonPress to play/pause the playback.ZOOM+/-buttonPress to zoom in/out the image.

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5

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13

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[ ]

[ ]

[ ]

[ ]

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CANCEL buttonPress to go one level/cancel current operation.OK buttonMENU buttonDVD-disc menu/PBC functionANGLE buttonPress to change camera angleQ-PLAY buttonPress to turn the Q-Play mode on.SUBT buttonPress to change the subtitles language/JPEG mode.ButtonPress to switch the device on/into standby. 22

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25

26

27

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2.4.2 Language settings1. menu: interface language setup#Options: Russian, English, Ukrainian,

Romanian.#Default option: English.2.DVD menu: selection of disc menu language3.Soundtrack:selection of translation language#Options:Russian,English,Estonian,Latvian,Kaz

akh,Romanian,Belarusian,UKrainian,Chinese.#Default: English.#Selection of other languages: select the

OTHERS item using the UP and DOWN buttons and press OK. Enter the language code using the numeric buttons and press OK.

#If the language you selected is not recorded on the DVD disc, another available language will be used.

4.DVD Subtitles: selection of DVD subtitles language

#Options:Off,Russian,English,Estonian,Latvian,Kazakh,Romanian,Belarusian,UKrainian,Chinese and others.

#Default option: Off.#Selection of other languages: select the

OTHERS item using the UP and DOWN buttons and press OK. Enter the language code using numeric buttons and press OK.

#If the language you selected is not recorded on the DVD disc, another available language will be displayed.

5.MP4 subtitles: selection of Mp4 subtitles language

#Options: Russian, English, Ukrainian, Romanian.

#Default option: English.

High

Medium

Low

TV system

TV scan mode

Video output.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

AUTO

IS

S-Vid.

4:3 LB

Med.

Off.

+48

+48

0

0

DVD playerAudio cordVideo cordRemote controlBattery AAAWarranty cardUser’s manual

1PCS1PCS1PCS1PCS2PCS1PCS1PCS

2.3 Set list

TV system

TV scan mode

Video output

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

PAL

IS

S-Vid.

4:3 LB

Med.

Off

+48

+48

0

0

AUTO

PAL

NTSC

2.4 FUNCTION SETTINGS 2.4.1 Function selection and changePress the SETUP key to show the setup

menu. You will see the following image on the screen, as shown on the figure:

Select the desired menu item using the UP and DOWN buttons; press OK for confirmation.

1.For example, if you wish to change the image settings, you have to select the lmage item and press the OK.

2.Using the Up and Down buttons, select the desired item and press OK.

For example, select the Sharpness item. Settings will appear on the screen. Then select the desired sharpness level and press OK for confirmation.

3.Press LEFT key of the UP and DOWN buttons for exit to previous menu level.

4. Press SETUP to exit setup menu.

Setup menu

DVD menu

Sound track

Subtitles

MP4 SubtitlesOff.

Language

Image

Sound

Playback

Karaoke

Preference

Parental control

Initial help

Reset settings

Exit

2.4.3 Image settings menu1.TV system: TV system selection#Options: Auto, PAL, NTSC.#Default option: PAL.2.TV scan mode: scan mode Selection#

3.Video output: selection of video signal#Options: S-Video, Comp, SCART.#Default option: S-Video.4.TV Format: image ratio settings#Options 4:3 Pan&scan, 4:3 letterbox and 16:9

TV.#Default option: 4:3 letterbox.#Some discs are recorded with support of onlyone ratio. The selected ratio must comply withthe TV screen.

5.Sharpness:image sharpness adjustment#Options: High, Medium, Low.#Default option: Medium.

Options: progressive, interlaced.# Default option: Interlaced .#Progressive scan is transferred only via a component video output.

#Before switching to progressive scan, make sure that your TV set supports this operation mode.

TV system

TV scan mode

Video output.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

PAL

IS

S-Vid.

4:3 LB

Med.

Off.

+48

+48

0

0

AUTO

PAL

NTSC

6.Gamma :adjustment of image color temperature#

Saturation:

Options: High, Medium, Low, Off.#Default option: Off.7.Brightness:adjustment of image brightness8.Contrast:adjustment of image contrast.9.Hues: adjustment of image hues.10. adjustment of image saturationAdjustment of image brightness, contrast, hues

and saturation:#Select the desired item of the image

adjustment section using the Up and Down buttons. Press OK or RIGHT key to start adjusting the relevant option.

#Change the option value using the Up andDown buttons.

#Upon completion press the LEFT key of the UP and DOWN buttons to return to image setupmenu. 2.4.4 Sound settings menu

Mixer

Digital output

Tuning

Configuration

Stereo mix

Surr. MixChannelsDelays

PRO Logic II

St.

L+R

off

Auto

1.Mixer

A).Configuration: setting of the mode for stereo signal

#Options : Stereo#Default option: Stereo.

B).Stereo mix: playback set-up while playing the disc with two independent audio channels.

#Options : L+R, L, R.#Default options: L+R.C.Surr. Mix: set-up of surround options while

playing the Stereo disc.#Options : Off, Virt. Surr.#Default options: Off.D. Low band: distribution of low frequencies

through channels.#Default options: Front F#If you want the low-frequency component of thesound signal enter only the subwoofer channel, select and confirm the parameter Subwoofer SW.

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StereoConfiguration

Stereo mix

Surr. MixChannels

PRO Logic IIDelays

St.

L+R

off

Auto

E. Channel settings: separate adjusting of volume by channels.

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G. PRO Logic ll: function of stereo sound conversion to 5-channel sound.

#Options: On, Off, Auto.#Default option: Auto.#In Auto position, the DVD player determines itself, when to use the PRO Logic ll decoder. Some discs do not support this function.

2. Digital audio outputA. SPDIF format: set-up of digital audio output

options#Options: RAW , PCM.#Default options: RAW.#When you select the RAW option, the

undecoded signal is transferred to the DVD player’s digital outputs, the decoded signal is transferred to analog outputs. Decoding is performed by the built-in decoder of the DVD player. This feature is meant to ensure that signal decoding at digital outputs is performed by an external device(e.g.an amplifier)

#If you select the PCM option, a PCM coded signal will be transferred to the DVD player’s digital outputs.

B. LPCM: set-up of digital audio output options to comply with different amplifiers and receivers.

#Options: 48 kHz 16 bit, 96 kHz 24 bit#Default option: 48 kHz 16 bit.

3. Sound correction:A. Max volume: max volume limiting.#Using the Up and Down buttons, adjust the max

volume level.#Press the LEFT key of the Up and Down

buttons to return to sound correction setup menu.

B. Equalizer: equalizer modes.#Options: Rock, Pop, Live, Dance, Techno,

Classic, Soft.

#Default option: Off.C. Echo: echo effects.#Options: Off, Concert, Living room, Hall, Bathroom, Cave, Arena, Church.

#Default option: Off.D. Tone balance

2.4.5 Playback settings1. DVD: Advertisement skip: skip the

unskippable block while playing a DVD disc.#Options: Yes, No.#Default option: No.2.VCD/SVCD: PBC menu : PBC menu on/off#Options: On, Off.#Default option: On.#If On option is set, while reproducing discs, a

menu will appear, in which you can select the order of playing the disc content. If the Off option is set, the reproducing of content is performed in the order, in which it is recorded on the disc.

: adjustment of tone balance level.

#Adjust the tone balance level using the Up and Down buttons.

#Press the LEFT key of the Up and Down buttons to return to sound correction setup menu.

DVD

VCD/SVCD

Files

Repeat

Load effect

Advertisemenu No

A. P. V

Off.

Off.

NOTE:#This function is possible with no disc loaded.

3.Files:selection of reproduced files on the disc#Options: Audio, Picture, Video.#Default option: A, P, V4. Repeat : file repeat mode #Options: Off, Single, All.#Default option: Off.5.Load effect: type of transition from one JPEG

file to another#Options: Off, from top, from bottom#Default option: Off. 2.4.6 Karaoke settings menu

1. Microphone: Microphone on/off#Options: On, Off.#Default option: Off.2. Kar. help: karaoke disc playback mode#Options: L Channel , R Channel , No ast , No

voc.#Default option: No ast .

Microphone

Kar. Help

Volume

Echo

On

Off

Off

No VOC.

5

5

Microphone

Kar. help

Volume

Echo

On

No ast.

5

5

Microphone

Kar. help

Volume

Echo

On

No ast

5

5

3. Volume:Microphone: microphone sound volume level.#Using the UP/DOWN buttons adjust the

microphone volume level.#Press LEFT key of the UP/DOWN buttons toreturn to karaoke settings menu.

4.Echo: echo level while playing the karaoke disc#Adjust the echo level Using the UP/DOWN buttons.#Press LEFT key of the UP/DOWN buttons to return

to karaoke settings menu.

2.4.7 Preference settings1.Gr. Equalizer: spectrum analyzer#Options: On, Off.#Default option: Off.3.Screensaver:screen saver on/off#Options: On, off.#Default option: On.

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On

OffGr. Equalizer

ScreensaverOff.On

2.4.8 Parental Control1.Category:setup of age restrictions to prevent

children from seeing undesirable discs.#Options: Any, Kid, G, PG, PG-13, PGR, R, NC-

17.#Default option: Any.

Any

Kid

G

PG

PG-13

PGR

R

NC-17

Allowed..Set password

Any

2.Set password: setup of a four-digit password to change the level of age restrictions.

#Default option: 7890.

Old password

New password

Verify

OK Cancel

Auto

PAL

NTSC

2.4.9 Initial setup menu#Press the RIGHT key of the UP/DOWN buttons

to enter the initial setup menu, then select the desired item using the buttons Up and Downand press OK key for confirmation.

#While being in this menu section, you cannotreturn to the previous level by pressing theLEFT key of the UP/DOWN buttons.

2.4.10 Reset to defaul tsResetting all settings and restoring default

options, except age restrictions level and password.

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Language

Image

Sound

Playback

Karaoke

Preference

Parental control

Initial help

Reset settings

Exit

2.4.12 Channel delay set-upSet-up of time delay in the surround channel

Usually, time delay in the Dolby Digital decoding system is preset to ensure best effect while installing the Home Theater. However, in case you wish to adjust your system more precisely, please consult instructions given in this manual. Set up of time delay for this device is possible in both Dolby Digital and Dolby Pro Logic modes..

To Set the desired delay you have to know the distance from the place where you are ,to the front speakers and Surround speakers as shown in Fig. 1Consult Fig.2(Dolby Pro Logic mode) and3(Dolby Digital mode) in order to determine the distance to Surround speakers(axis Y in the figure) and the distance to the front speakers (axis in the figure).Crossing point of those two lines on the chart will give the recommended delay value.

Fig.1.Take into account the A-B distance; use both figures for setting the desired time delay.

OptimumAdmissableNot recommended

Fig.2.Detemine delay value as to Dolby Pro Logic mode

Distance to front speakers(inches)

Fig.3.Detemine delay value as to Dolby Digital mode.

Set-up of time delay in the central channel

Sometimes several people are listening to the music, and the space is limited. In this case, you can install three speakers(two front ones and a central one) as shown in Fig.1 with the distance to the listener being approximately the same. The central channel delay is to be set at “0”.

Should the central speaker be in close proximity to left and right front speakers as shown in Fig. 2, or the central speaker be nearer to listeners when compared with front speakers’ location, or the central speaker be nearer to the listener by 1 foot, in all these cases you may set the delay value for the central channel at 1 ms.

For instance, as shown in Fig.2, if the line C is by 1 foot shorter than the lines R and L, the delay value is to be set at 1 ms. If your sofa is broad enough, and there are several listeners sitting on it , it makes sense to locate the speakers in one line, as shown in Fig.3 with the delay value of the central to be set at “0”.

Finally, if it will be necessary to install the central speaker behind the left and right front speakers, the delay value shall be set at “0”.

2.4.11 Exit setting menu Select the exit item using the Up and Down

buttons and press the OK to exit the menu.

Load factory settings

OK Cancel

Principle of compressing the acoustic signat’s dynamic range.

whisper etc. have merely disappeared. To avoid this, you just have to decrease the volume of “loud” sounds by simultaneously increasing the volume of “soft” sounds with the volume of “average” sounds left unchanged, i.e. Just decrease the dynamic range of sound accompaniment. Only Dolby Digital system provides for such a method of sound control. It uses the principle of compressing the acoustic signal’s dynamic range while recording; therefore, while playing an inverse transformation(volume expansion) takes place. This is called”night” mode. The regulation limits are restricted, however, to avoid distortions of resultant signal.

The Dolby Digital system provides an extremely broad dynamic range of playback sound-from gentle to roaring. It creates the presence effect, especially while seeing motion pictures. However, at night a powerful sound with a broad dynamic range may give pleasure to you ,but disturb and annoy your family and neighbors. If you just decrease the volume, you will immediately notice that you ceased to hear, e, g, dialogues as clear as you do at normal volume, and such sound effects as rustle,

“Night” mode

Fig.1.Delay of central channel=0

Fig.2.Small area Delay of central channel=L=(or

Fig.3.Small area Delay of central channel=0 L=R>C

Dolby Digi tal Dolby Pro Logic surround

Rear channel Stereo 20 Hz-20 kHz Mono channel with limited frequencyrange(100Hz-7 kHz)

Low-frequencychannel(subwoofer)

Available,20-120 Hz N/a

Sound field dis tribut ion Muitivariate From left to right, from right to left, fromfront to rear, from rear to front

Channels6 independent channels, eachreproducing it s own signal at a t ime

4 segmented channels . Only one channelis decoded at a time.

Creates an opt imum sound field withillus ion of an equal distance from listenerto each speaker.

The most cost-efficient way to ensurehigh-quality surround effect.

Allows adjust ing the decompress iondegree of sound infromation("night"mode).

Surround sound may be received fromany signal source.

Miscellaneous

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Miscellaneous

Poss ibili ty of programmable cont rol of thedecoder to t ransfer basses into low-frequency channel in systems equippedwith broad-band speakers and asubwoofer.

Compatible with exist iing and future two-channel(s tereo) formats.

Undoubted progress in sound recordingtechnology, especially important forprogram directors, film directors, soundengineers and actors.

Big progress in comparison withconventional stereo, the world's mostpopular surround format.

2.5 MISCELLANEOUS 2.5.1 Useful notes#To extend the service life of your DVD player make pauses of not less than 30 seconds between

switching off and repeatedly switching on the DVD player.#Disconnect the DVD player from the wall outlet after shutdown.#Some DVD player’s functions may not be applied to some discs.#Use supply sources of rated voltage, otherwise the DVD player may not function or be damaged.#In case of the DVD player’s occasional stops, please switch the power supply off and then on again.

2.5.2 Trouble shootingPlease check probable causes of malfunction before addressing the service center.

Sign of trouble Cause of trouble Act ions to eliminate the t rouble

No sound 1.Poor audio cable connection2.Disc dirty or damaged.3. Sound disabled by the MUTE button.

1.Make proper connect ion2. Clean the disc3. Press the MUTE button.

No image 1.Poor video cable connection.2. Incorrect settings of your TV set.3.The DVD player is in the progressivescan mode while your TV set does notsupport this mode.

1. Make proper connect ion.2. Correct the setting of your TV set.3. Place the DVD players in theinterlaced scan mode through theDVD-receiver's menu.

Black and white image 1. Incorrect TV color system selected.2. Color level on theTV set adjustedincorrectly .

1. Set the appropriate color systemvia the menu: SETUP>Image>TVscan.2.Readjust the color system of yourTV set

Discs cannot be read 1. Disc not inserted.2.Disc inserted incorrectly.3.Condensate on the DVD player's laserhead.

1.Insert the disc.2.Install the disc with the label sidefacing up.3.Switch the DVD players on withoutdisc for an hour.

Microphone does notoperate

1.Microphone is unplugged.2.Low level of the microphone's soundvolume.

1.Connect the microphone.2.Adjust the level of the microphone'ssound volume.

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Remote control does notoperate

1.Remote control is incorrectly directedat the DVD players's sc reen.2. Distance to the DVD players is inexcess of 8 meters.3.Run out bat teries.

1.Use the remote control accordingto the manual.2.Decrease the dis tance to the DVDplayers.3.Replace both batteries.

Some functions do norwork

1.Disc is recorded incorrectly.2.Incorrect key sequence.3.Static voltage on the DVD player'shousing.

1.Wait5-10 seconds and the DVDplayers will automatically return tonormal state.2.Repeat the operation one moretime.3.Switch the DVD players off for 1-2minutes and then switch it on again.

Unstable image 1.Incorrect TV set settings. 1.Correct the TV set settings.

2.5.3 Specification

Supported formats

Data medium

Inputs

Analog outputs： 2.0CH output. Digital outputs： Coaxial audio out

Video outputs: S-Video output, RGB/SCART output, Composite output

Audio characteristics

Voltage range

Temperature requirement Moisture requirement 15-75%(not condensate)

Outputs

C:0.286Vp-p(75 )Signal swing of component video output: 1.0Vp-p(75 )

Signal swing of composite video output: 1.0Vp-p(75 )Signal swing of S-Video output: 1.0Vp-p(75 )

DVD-Video, Super VCD, VCD, MPEG-4, CD-DA, CD+G, HDCD, MP3, WMA,Kodak Picture CD, JPEG CD-R, CD-RW, DVD-R, DVD+R, DVD-RW, DVD+RW

Microphone input(two microphone inputs for(DV611SI,DV624SI,DV626SI ,DV628SImodels.one microphone inputs for DV214&216SI&DV118SI) Audio outputs

5-35

Cb/Cr:0.7Vp-p(75 )

Video characteristics

Frequency: 20-20000 Hz( 1 db)Signal-to-noise rat ion: >100 db

~110-250V, 50/60 Hz

#We improve quality of our production permanently, that’s why specification can change without notification.

#Some discs, recorded in any supported format on any compatible device, can’t playback or can playback incorrect over peculiarity of their record.

Model Dimensions(mm) Weight (kg) Power consumption(watt)

14DV437SI 360×195×38 1.7

DV438SI 360×195×38 1.7 14

- 15 -

Chapter Three Block Diagram

3.1 OVERALL WIRING DIAGRAM FOR PLAYEROverall wiring diagram of player is shown in figure 3.1.1.

LO

AD

ER

LOAD-LOAD+TROUT

GNDTRIN

LOAD-LOAD+TROUTGNDTRIN

SL+SL-

LIMITGNDSP+SP-

SL+SL-LIMITGNDSP+SP-

F-F+T+T-CD

IOARFO

ABF

GNDV20

VCCE

VR-CDVR-DVD

LD-CDMDI

HFMVCC

LD-DVDGND

F-F+T+T-CDIOARFOABFGNDV20VCCE

VR-CDVR-DVDLD-CDMDIHFMVCCLD-DVDGND

R

GB

_CV

BS

R/V

G/Y

GN

D

B/U

AV_ T V

VID

EO

L

AG

ND

R

DE

CO

DE

BO

AR

D

SKYWOOD-1389J-2CH

MIC1

GND

FS0

LEDAT

LEDCK

LEDST

GND

VCC

IR

+ 12 V

-12 V

GN

D

+ 5VPOWER BOARD

CN

4C

N2

FS0

VSDA

VSCK

VSTB

GND

VCC

IR

VCC

USB_DM

USB_DP

GND

AV BOARD SCART-OUT.PCB V2.1800-SCAR01-C

821-311200-1

CN

3CN

8C

N5

CN

9

CN10

usb&karaoke boandDV417/418SI-MIC&USB.PCB V2.1

VCC

USB_DM

USB_DP

GND

MIC1

GND

main panel boand

DV

418SI-S

MP

-PC

B.V

2.0DV417SI.PCB.V2.1

DV417SI-POWER.PCB.V2.0DV418SI-POWER.PCB V2.0

VIP

4

ST B

Y

F OS

O

FMS

O

DM

SO

T RS

O

TRO

PE

N

TRC

LOS

E

TR_B

1

RE

G0 1

Bu c k C

ir cui t

Buc k C

i rcui t

VC

C

3.3 V

VC

C

1.8 V

T R_B

2

RE

G02

Panel, IR

sensor of re m

ote c ont ro l R

esetcirc uit

URST

IR

VEDST

VEDCK

VEDAT

CS

#R

AS

#C

AS

#W

E#

DQ

[ 0- 1 5]

MA

[ 0- 11 ]

BA

0B

A1

DC

LKD

CK

E

SD

RA

M

SF_ C

S

SF_ D

I

VR

_DV

DV

R_C

DIO

A

LDO

2LD

O1

LD_D

VD

LD_C

D

CD /DVDS

witc h

L aser p ow

er c on tr ol

MD

ID

VD

:A/B

/C/D

/RFO

CD

:A/ B

/C/ D

/E/F

V2 0

TRIN

TRO

UT

LIMIT

MT 1389 J

LOA

DE

R

AM

58 8 8

T+

T-

F+

F-

SL+

SL-

SP

+

SP

-

L O AD +

L O AD-

MMM

F eed Mo to r

Spi ndl e M

otor

Doo r op en/ clos e ci rc uit

Audio

Amplify

Filter

AL

AR

ALS

ARS

ARF

ALF

ASPDIF

FL

FR

SL

SR

LFE

CC

V_B

V_R

V_G

CVBS

SY_B/U

SC_R/V

CVBS

G/Y1#

B/PB#

R/PR#

Video

Filter

Clamping

MIC

boar d

MIC1

FLA

SH

Ou

tpu

t t ermi n

a l

SF _D

O

SF _C

K

MIC_IN1

- 16 -

3.2 BLOCK DIAGRAM FOR PLAYERBlock diagram for player is shown in figure 3.2.1.

Chapter Four

Block Diagram of Unit Circuit

4.1 Servo Circuit

Servo system of this machine adopts SANYO loader and MTK decode scheme. And servo circuit is

mainly composed of front signal processing, digital servo processing, digital signal processing chip

MT1389 and driving chip AM5888. MT1389 is also main part of decode circuit. Block diagram of servo

circuit is shown in figure 4.1.1.

FOSO

FMSO

TRSO

DMSO

A B C D E F RFO

IOA

LDO2LDO2

MDI1

Disc switch circuit

Laser power control circuit

Spindle control detecting circuit

Spindle Motor

Feed Motor

CN3

AM5888

MT1389J

Door open/close circuit

T- T+

F+

F-

SL+

SL-

SP-

SP+

1

23

4

26

1516

14

13

17

1812

11

Figure 4.1.1 Block diagram of servo circuit

- 17 -

4.2 Decode Circuit Decode circuit is mainly composed of MT1389,SDRAM and FLASH. Block diagram of circuit is

shown in figure 4.2.1.

SDRAM

SDCLK

SDCKE

DCS

DRAS

SWE

DQM0

DQM1

DQ0~DQ15

MA0~MA11

URST

SF_CS

SF_DO

SF_DI

MT 1389J

FLASH

Reset Circuit

1.8V voltage

stabilizing

V18

27M Clock

Figure 4.2.1 Block diagram of decode circuit

3.3V voltage

stabilizing

DV33

SF_CK

4.3 Video Circuit

.3.1.

MT1389J has video D/A converter circuit and video output has R/B/G, Y/Pb/Pr, Y/Cb/Cr, CVBS and

Y/C output modes, in which R/B/G, Y/Pb/Pr, Y/Cb/Cr and Y/C can not output at the same time and need

to be switched via software. CVBS is a separate output mode; four channel video signal is outputted to

AV board by MT1389 after video filtering and clamping. Block diagram of video signal process is shown

in figure 4

Figure 4.3.1 Block diagram of video signal process

MT1

389J 103

102

100

V_B

V_GD10

CVBS D4

VIDEO_SY

VIDEO_SC

VIDEO_G/Y

PB#

PR#

VIDEO#

S te

rmin

al P

1

SCART

104

D6

D5Video

component

V_R

Vide

o te

rmin

al

VIDEO_CVBS

Y1VIDEO_B/U

VIDEO_R/V

Y1#

CO

N1

RGB_CVBS

- 18 -

4.4 Audio Circuit Block diagram for audio circuit is shown in figure 4.4.1

Figure 4.4.1 Block diagram of audio circuit

MT1389

116

114

119

115

120

114

Mute circuit

FLFR

Audio terminal

P2

ASPDIF SPDIF

FilterCircuit MIC Board

OKAMIC_IN1

COAXIAL10

8

CN9

SCRAT

P2

ALAR

OKA

93 SD7402U8

C80C78

ALAR

CN

10

R63

4.5 Power Circuit 1.Block diagram of power circuit is shown in figure 4.5.1.

Figure 4.5.1 Block diagram of power circuit

Transformer

Rectify

Absorb loop

Electric netfilter

Insu

ranc

e t u

be

Power socket

Switch IC

Feedbackwinding

Opto-coupler

LM431A

Sample circuit

Rectify Filter +12V

+5VRectify Filter

Filter

HOST GND

Rectify Filter -12V

- 19 -

PT223

Machine power on

Check whether voltage of two sides of

power wire is 90~250V

Replace power wire and trouble is removed

Check whether two sides of power

board PC8 is 300V

Check whether insurance

tube is normal Replace insurance tube

Check rectifying diode PD1-PD4

Check whether red

indication light of panel is

on

Press POWER button to

power on and check whether it is on

A1

Check whether power

board outputs voltage normally

Check power supply circuit of decode board

Check whether panel power

supply is normal

Check whether working voltage of indication light

is normal, whether indication light is damaged

Check whether power board PU1, PU2 and

PU3 are normal working

Check whether power

supply of FLASH is normal

Check whether clock is normal

Check whether working

voltage of MT1389 is normal

Replace MT1389 chip

A4

A3A2

Y

N

N N

Y Y

N N

Y Y

N

Y

Y

N N N

Y Y Y

Chapter Five Troubleshooting Flow Chart

- 20 -

Replace FLASHCheck whether elements

around oscillator are normal,replace oscillator if it is OK

Check power supply circuit of decode board

Check whether USB

reading is available

Check whether USB

terminal voltage is normal

Check whether 5V voltage is normal, replace MT1389

chip if it is normal

Replace USB terminal

Check whether CD disc is

readable

Check whether L4 inductance

is high level Replace loader pick up

Check whether power supply

Q2 is normal Replace MT1389 chip

Check multilink power supply of Q2 triode

Check whether DVD disc is

readable

Refer to troubleshooting flow chart of unreadable

CD disc

Check whether composite video

output is normal

Unplug CN10 flat cable

of decode board to check whether video output

is normal

Check whether L2 inductance

has composite video output

Replace MT1389 chip

Check AV board Replace AV terminal

B1

Y

N

Y

N

N Y

NY

Y

N

N

Y

N

Y Y Y

N N

A1 A2 A3 A4

- 21 -

B1

Check whether sound output

is normal

Check whether power

supply of pin 1, 15 of 7402 is normal

Check whether pin 12 of 7402

has sound output

Check whether mute circuit is normal

Check power supply circuit of power board Whether

C65 capacitance has sound output Replace MT1389 chip

Replace 7402 chip

Check whether karaoke

is normal

Whether software is open

Check whether MIC board karaoke signal is

normal Replace MT1389 chip

Turn on MIC switch ON Check whether power

supply of 7402 is normal

Check power supply circuit

Check whether pin 13 has

karaoke signal output

Replace microphone socket

Replace 7402 chip

Troubleshooting of player is finished

N Y

N N

Y

Y

N

Y

N Y Y

N

N

Y

N

Y

NY

- 22 -

Chapter Six

1. Waveform diagram for pulse DC of power board PD5 anode.

Waveform Diagram

This section collects signal waveform diagram of audio, video and each unit circuit with the purpose

to help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing

skills. For the difference of oscillograph's type, model and tuner, a certain difference may exist, so the

servicing personnel are expected to pay more attention to check in daily operation.

2. Waveform diagram for spindle signal DMO(when spindle has motion).

Vpp=28.0V

Vpp=12.1V

- 23 -

3. Waveform diagram for feed signal FMO(when pick up has feed motion).

4.Waveform diagram for traction signal TRO(when pick up has traction motion).

5.Waveform diagram for focus signal FOO(when pick up has focus motion).

Vpp=13.4V

Vpp=4.2V

Vpp=5.1V

- 24 -

6.Waveform diagram for FLASH chip SF_DI(pin 5 of U6).

7.Waveform diagram for FLASH chip SF_CK(pin 6 of U6).

8.Waveform diagram for 27MHz clock (Y1).

Vpp=4.08V

Vpp=3.40V

Vpp=1.12V

- 25 -

9. Reset signal URST waveform diagram.

10. Video signal waveform diagram.

11. 1KHZ audio signaal output waveform diagram(it is suggested to use test disc,if not,waveform tested will change at any time,which will affect your judgment).

Vpp=4.60V

- 26 -

Chapter Seven PCB Board

7.1 Surface layer of Decode Board

- 27 -

7.2 Surface layer of AV Board

7.3 Bottom layer of AV Board

7.4 Power Board

- 28 -

Surface layer of

Bottom layer of7.5 Power Board

POWER

POWER

7.6 Surface layer of Main Panel

- 29 -

7.7 Bottom layer of Main Panel

7.8 USB Board

DV437SI

DV438SI

DV437SI

DV438SI

7.9 Surface layer of OK Board

8.0 Bottom layer of OK Board

- 30 -

Chapter Eight Circuit Diagram8.1 Decode Board

- 31 -

AVCC VCC

VCCAVCC

C30.1uF

H2 HOLE1

2

3

4 5 6

7

8

9

+C1100uF/10V

H1 HOLE1

2

3

4 5 6

7

8

9H4

MARK

H3

MARK

VID

EO

I/F

OFF

-PAG

E C

ON

NEC

TIO

N

S-F

LAS

H

DR

AM

I/F

AU

DIO

I/F

Rvr

t

Vre

fV

ref/3

.3V

1.2V

out

put

LD-C

D

LD-D

VD

ASPD

IF

SP-A

SL+

SL-

LIM

IT

SP-A

SP+

V20

F-F+T+T-CDIOA

ABF

AUD

IO_M

UTE

DC

LK

SF_D

ISF

_CS

RAS

#

SF_C

K

SF_D

O

CAS

#W

E#

CVB

S_O

UT

FOO

TRO

DM

OFM

O

ALAR

XI

RFO

V1P4

OP-

AKIN

1

FMS

OTR

SOFO

SOSP

-

AVC

C1

V20

E

AAD

VDD

AVC

C1

RFO

AUD

IO_M

UTE

GPO

14

VR_D

VDVR

_CD

XI XO

ADACVDD

DQ

11D

Q12

DQ0

CVBS_OUT

C

MA1

1

DQ14

DQ4

SF_D

I

GPIO19

RAS

#

DQ

10

DQ5

GPIO4

TRO

AVCM

MA7

MA0

DQ13

RFV

DD

3

GPIO20

A

DQ

9

WE#

DQ

M1

DAC

VDD

3

AADVDD

GPIO3IRURST#

F

MA8

MA4

DQ2

SF_D

O

DM

O

DACVDD3

MA9

MA2

DQ7

GPIO11

B

E VR_C

D

MA1

0

DQ15

GPO

_B

LDO

2

V20

MA6

MA1

FS

GPI36

MA3

LDO

1

RFV

12-2

RXD

GPI

O11

SCAR

T3

AL

DQ

8

USB

_DM

FOO

V1P4

AR

OPO

MA5

ASPD

IF

V1P4

DQ1

SF_C

S

GPO

5

RFV

DD

3

RFV12-1

GPO14

OP-

CAS

#

UP1_7

GPIO13

SF_CK

USB

_V12

GPI

O2

AKIN1

D

BA0

DQ6

USB

_DP

ADAC

VDD

DC

LK

BA1

UP1_6

FMO

DQM0

DQ3

DAC

VDD

3

LDO

1

LDO

2

XO

OPO

ADJ_

33

T- T+ SL+

FBI_

33

SP+

ADJ_

12TR

SO

FMS

OTR

OPE

N

LOAD

+

F+

FOSO

F-

V1P4

LOAD

-

TRC

LOSE

SP- FB

I_12

SL-

DM

SO

DM

SO

USB

_V33

ADJ_

12

FBI_

33

ADJ_

33

FBI_

12

STBY

UP1

_7VS

DA

TRIN

LOAD

-

TRO

UT

LOAD

+

UP1

_6VS

CK

GPI

O13

VSTB

89J_

3V3

V33

URS

T#

USB

_DP

USB

_DM

1V2

V_B

V_R

V_BV_R

VSC

KVS

TB

SCAR

T3

VSD

A

IR

RFV

12-1

RFV

12-2

SCAR

T1G

PIO

10SC

ART2

GPI

O33

SCAR

T1

SCAR

T3SC

ART2

GPIO6

GPI

O6

TXD

V_G

V_G

GPI

O20

GPI

O19

ASPD

IF[4

]

WE#

[3]

SF_C

S[3

]SF

_DI

[3]

AUD

IO_M

UTE

[4]

CAS

#[3

]

DC

LK[3

]

SF_D

O[3

]

SF_C

K[3

]

RAS

#[3

]

CVB

S_O

UT

[5]

AL[4

]AR

[4]

AKIN

1[4

]

V_R

[5]

V_B

[5]

SCAR

T1[5

]

SCAR

T3[5

]SC

ART2

[5]

V_G

[5]

1V2

89J_

3V3

DV3

3

89J_

3V3

89J_

3V3

AVC

C

DV3

3

89J_

3V3

89J_

3V3

1V2

89J_

3V3

1V2

89J_

3V3

1V2

DV3

3

1V2

89J_

3V3

MD

_VC

CM

D_V

CC

VCC

VCC

DV3

3

AVC

C

AVC

C

89J_

3V3

DV3

389

J_3V

3

AVC

C

AVC

C

C95

0.1u

F

C17

330p

F

R28

10K

Q1

8550

1

32

C47

0.1u

F

C18

0.1u

F

R18

10

C16

330p

F

L410

uH

L6FB

R25

51

R9

10K

C98

10uF

/6.3

V

D2

IN40

01/D

IP

C26

0.1u

F

CN

2

6P,2

mm

1 2 3 4 5 6

+C

4810

0uF/

6.3V

C6

NC

C320.1uF

R5

10K

R13

560

+C

4047

uF/6

.3V

C9

0.1u

F

R27

5.1K

1%

+C

5010

0uF/

6.3V

U2

AM58

88/A

T566

9BA

5954191012 3 2

15

714 13

2119 20 24 27

6 45

28

81117 1816 2322 25 26

2930

VIN

FC

VOTR

-VO

TR+

VOS

L-

REG

O2

TRB1

VOTK

+

REV

VOFC

+VO

FC-

VCTL

VCC

2N

C

NC

BIAS

FWD

VIN

SL+

REG

O1

MU

TE

VCC

VOS

L+VO

LD+

VOLD

-

VOTK

-

VIN

LDG

ND

TRB2

VIN

TK

G1

G2

C15

0.1u

F

D1

BAT5

4C

1 3

2

R3

27K

R24

51

R45

10K

C30

0.1u

F

Q4

2SC

8550

D/D

IP1

3 2

C13

0.1u

F

R10

10K

L2FB

C22

0.1u

F

L10

FB

R17

10

T1 TES

T

+C

4910

0uF/

6.3V

C21

27pF

R4

15K

C51

0.1u

F

C25

0.1u

F

R6

100K

CN

84P

,2m

m1 2 3 4

R11

0

C5

0.1u

F

C44

0.1u

F

R44

4.7K

,1%

R15

4.7K

C310.1uF

L3 10uH

R35

20K

C41

0.1u

F

C46

0.1u

F

L9FB

C96

10uF

/6.3

V

C45

0.1u

F

+C

4310

0uF/

16V

+C

2847

uF/6

.3V

C19

0.01

5uF

R39

3.9K

R43

12K

R12

0

Q5

2N39

041

32

R1

10K

C10

0.1u

F

C54

0.1u

F

R36

15K

,1%

C29

6800

pF

+

C39

47uF

/6.3

V

R2

27K

R37

10K

C34

0.1u

F

C42

0.1u

F

D3

IN40

01/D

IP

Q3

2SC

8550

D/D

IP

1

3 2

C14

0.1u

F

+C

5322

uF/6

.3V

R38

22K

R8

10K

C52

0.1u

F

C371uF

MT1

389J

LQFP

128

No

EP

AD

U1

MT1

389J

LQFP

128/

SMD

/D14

X14

5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

3334

3637383940414243444546474849

525354

51

5758

55

5960

50

6263

61

64

656667697094 9093 92 91 89 88 8413

35

86 7985 83 82 81 80 78 77 76 75 74 6873 72

4321

128127126125124123

118117116

111110109108107106105104103102101100999897

96 95

112113

122121120119

115114

56

87 71

AVD

D12

_2AV

DD

33_1

XTAL

IXT

ALO

AGN

D33

V20

V14

REX

T / G

PO5

LDO

1LD

O2

AVD

D33

_2D

MO

FMO

TRAY

_OPE

NTR

AY_C

LOSE

TRO

FOO

FG /

GPI

O2

USB

_DM

USB

_DP

VDD

33_U

SBVS

S33_

USB

PAD

_VR

TVD

D12

_USB

SF_C

S_SF

_DO

SF_D

I

SF_CKUP1_6 / SCL

GPIO11GPIO6PRST#IRGPIO3 / INT#GPIO4GPIO13GPIO9GPIO8GPIO7 / CKE_GPIO29GPIO30GPIO31GPIO32

RD0RD1RD2

DVDD33

RD4RD5

RD3

RD6RD7

DVSS33

RD15RD14

DQM0

RD13

RD

12R

D11

RD

10

RD

8D

QM

1

GPI

O10

RA1

SPD

IF /

GPI

O12

RA3

RA2

RA0

RA1

0

DVD

D33

UP1_7 / SDA

BA1

RA4

BA0

RAS

#C

AS#

DVS

S12

RW

E#

RA5

RA6

RA7

RA8

RA9

RD

9

RA1

1R

CLK

RFF

RFE

RFD

RFC

RFBRFA

RFH / OPINNRFG / OPINP

RFIN / OPOUT / GPI36RFIP

ALF / CENTER / GPIOALS / GPIOAL / GPIO1

ADACVSS1ADACVSS2

AADVDDAKIN1 / GPIO21 / Audio_Mute

ADVCM / GPIO20AKIN2 / GPIO19 / Audio_Mute

AADVSSRBG

DACVDDBCVBS

DACVSSCFS

VREF / GPO14 DAC

VDD

CG

PIO

33

ARF / LFE / GPIOARS / GPIO

AGND12AVDD12_1

ADACVDD2ADACVDD1

AVCMAR / GPIO0

DVDD12

DVD

D12

DVD

D33

L1FB

C20

27pF

CN

4

5P,2

mm

1 2 3 4 5

C11

0.1u

F

U3

WH

6817

1 2 3 45678

VDD

IO_P

IO_D

RET

IO_KIRIN

TVS

S

+C

2710

0uF/

16V

R16

4.7K

R29

10K

C97

0.1u

F

Q6

2N39

04

1

32

Q2

8550

1

3 2

L5FB

TOP

CN

3

24P

,SM

D0.

5

123456789101112131415161718192021222324

R14

4.7K

C7

NC

R42

10K

R7

1

C3310uF/6.3V

R41

33

C12

0.1u

FY1

27M

Hz

CN

57P

,2m

m

1 2 3 4 5 6 7

C23

0.1u

F

R40

33

R26

4.7K

R34 0

C8

0.1u

F

C24

0.1u

F

- 32 -

SF_C

K[2

]

SF_D

O[2

]

SF_C

S[2

]SF

_DI

[2]

MA[

0..1

1][2

]

RAS

#[2

]C

AS#

[2]

DQ

M[0

..1]

[2]

WE#

[2]

DQ

[0..1

5][2

]

DC

LK[2

]

BA[0

..1]

[2]

DV3

3

SR_3

V3

DV3

3

SR_3

V3SR

_3V3

SR_3

V3

DV3

3

SR_3

V3

SR_3

V3

SR_3

V3D

V33

C59

0.1u

F

R50

10k

R46

10k

R48

33

R51

10k

U4

ESM

T M

12L1

6161

A-7/

NC12 3 45 6 78 9 1011 12 13

1415161718192021 22 23 24

25

2627 28 29 30 31 32 333435 36 37

3839 40 4142 43 4445 46 4748 49

50

VCC

DQ

0D

Q1

VSSQDQ

2D

Q3

VCC

Q

DQ

4D

Q5

VSSQDQ

6D

Q7

VCC

QD

QM

L

WE

CAS

RAS

CS

BA/A

11A1

0

A0 A1 A2 A3

VCC

VSS

A4 A5 A6 A7 A8 A9 NC

CKE

CLK

DQ

MH

NC

VCC

Q

DQ

8D

Q9

VSSQ

DQ

10D

Q11

VCC

Q

DQ

12D

Q13

VSSQ

DQ

14D

Q15

VSS

C56

0.1u

F

R47

10k

C60

0.1u

FC

570.

1uF

+C

5510

0uF/

6.3v

L7FB

C58

0.1u

F

U6

EN25

F16

1 2 3 45678

CE#

SO WP#

VSS

SISC

KH

OLD

#VD

D

C61

0.1u

F

U5

ESM

T M

12L6

4164

A

12 4 125 7 98 10 4611 13

1516171819352223 24 25 26

14

4129 30 31 32 33 34 363738 39 40

4342 44 5245 47 4948 50 51 53

5420 21

3 627

28

VCC

DQ

0D

Q1

VSSQDQ

2D

Q3

VCC

Q

DQ

4D

Q5

VSSQDQ

6D

Q7

DQ

ML

WE

CAS

RAS

CS

A11

A10/

AP

A0 A1 A2 A3

VCC

VSS

A4 A5 A6 A7 A8 A9 NC

CKE

CLK

DQ

MH

NC

VCC

Q

DQ

8D

Q9

VSSQ

DQ

10D

Q11

VCC

Q

DQ

12D

Q13

DQ

14D

Q15

VSS

BA0/

A13

BA1/

A12

VCC

Q

VSSQVC

C

VSS

R49

10k

- 33 -

AR[2

]AL

[2]

ASPD

IF[2

]

AKIN

1

AUD

IO_M

UTE

[2]

CVB

S_O

UT

[2]

V_B

[2]

V_G

[2]

V_R

[2]

SCAR

T1[2

]

SAR

CT3

[2]

SCAR

T2[2

]P+

12V

AVC

C

DV3

3

DV3

3

DV3

3

DV3

3

DV3

3

-P5V

P-12

V

C88

330p

F

C82

1000

pF

VCC

PMUTE

MICIN

MUTE

LIN

RIN

SUBIN

NC

GND

VSS

STBY

MICOUT

LOUT

ROUT

SUBOUT

NC

U8

SD74

02

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

C83

1000

pF

R66

75

C94

100p

F

+C

8747

uF/6

.3v

C89

0.1u

F

R72

2.2k

D10

BAV

99C79

1000

pF

Q7

2N39

06

C93

100p

F

R62

100

R65

10K

Q8

2N39

041

R61

33K

R64

100

D4

BAV

99R

674.

7k

L8FB

C77

0.1u

F

R71

2.2k

R72

75 1

%

R58

10K

R53

1K/0

603

R77

75 1

%

C90

100p

F

C85

3300

pF

C64

1uF

P2 RC

A2X3

RC

A6/9

P/D

IP

9 1 2 8 4 3 7 5 6

R74

2.2k

C92

100p

F

R76

2.2k

C84

0.1u

F

C81

1000

pF

C78

1uF

R75

2.2k

C86

0.1u

FR

6310

0

C80

1uF

CN

10

10P.

2mm

1 2 3 4 5 6 7 8 9 10

R60

2.2K

R78

75 1

%

R68

75 1

%

CN

9

3P 2

mm

123R

592.

2K

D5

BAV

99

GG

CY

P1 S/R

CA/

9P/D

IP

34

12

7

8

9

5 6

R70

2.2k

R67

10K

Q9

2N39

04

C91

0.1u

F

D6

BAV

99

- 34 -

8.2 Power Board

AC+

VCC

GN

D1

P+12

V

VCC

PL1

20U

H/1

.5A

PR10

0.75

,1/2

W

PD3

1N40

07

PD1

1N40

07

+PC

722

0UF/

25V

PF1

T500

mA/

250V

+PC

822

UF/

400V

PC2

2A10

4J

PR2

100K

,1/2

W

PU1

PD22

3

1 2 3 45678

OB

VCC

GN

D

CT

FBJSOC

OC

PC1

47uF

25V

PT1

E25

1 2 3 4 5678910

PD9

FR10

7/FR

10

PR12

10K

/060

3

+

PC6

1000

UF/

16V

PR3

2.2M

,1/2

W

PR11

100R

/060

3

PD2

1N40

07

PR8

10K/

0603

PC3

2A82

1J

PD7

IFR

108

PD8

FR10

7/FR

104

PU3

TL43

1

PR13

1K/0

603

PD5

IN58

22

PD6

1N41

48

PC11

104/

50V

PJ1

VH3.

96

12

PD4

1N40

07

+

PC4

470U

F/16

V

PR6

15R

/060

3

PY1

102/

400V

PC5

222/

1KV

PT2

PU2

PC81

71 2

4 3

!

!

!

!

!

+

PC9

220U

F/25

V

P-12

V

8.3 Main Panel(DV437SI)

- 35 -

BTS

O/I

RI

CC

V

ATA

D

CC

V

RIKLC

BTS

KLC

CC

V

ATA

D

7R4 1

R

2RK0

1

YAL

P2

WS

1D

8 414

NIP

OTS

3W

S

ON

1C

1234567

1C

EV6

1/Fu

100

NE

PO

1W

S

1UM

ER

123

1RK0

1

1C

401

RE

WO

P4

WS

3RK0

1

RED

GREENLED1

LED1

VCC

I/O Q29015

R9220

R51K

R63.3K

R81.8K

Q19014

R7270

8.4 Main Panel (DV438SI）

- 36 -

BTS

CC

V

RI

ATA

D

CC

V

KLC

CC

V

O/I

CC

VRI

KLC

B TS

O/I

ATA

D

U3

4109

S

7R4 1

R

4RK0

1

2U

8296

PA

1 234

5 6

7

8 901 11 21 3141

91 02

1222

32 42

52

62 72

82

5 16171 81

1C

101

K01

8R

YAL

P2

WS

2C

E

5RK1

5

POT

S3

WS

CO

N3

1234567

LED403123456789011 12 1

1C

E

V61/

Fu100

2C

301

NE

PO

1W

S

U1

123

2RK0

1

5C

401

3C

301

RE

WO

P4

WS

220 7R

1D

EL

3RK0

1

4C

401

10 6R

V61/

Fu100

TH1628

- 37 -

8.5 USB Board

1G

ND2

D+3

D-

4VC

C

USB_JAC

K

C1

104E

C1

16V220

U

L11U

H

2 3 41

CO

N3

GN

DUSBPUSBMVCC

USBMUSBP

VCC

GN

D