PROGRAMMABLE POLYPHONIC MODEL AX80 - … · programmable polyphonic synthesizer modelax80 0u9>: section1servicemanual section2partslist section3schematicdiagram section4servicebulletin

PROGRAMMABLEPOLYPHONICSYNTHESIZER

MODELAX80

0u9>:

SECTION 1 SERVICEMANUALSECTION 2 PARTS LISTSECTION 3 SCHEMATIC DIAGRAMSECTION 4 SERVICE BULLETIN

ABBREVIATIONS FOR THE SERVICE MANUAL MODEL AX80

ABBREVIATIONS EXPLANATION

CTL PnnTrrJvÛIl I IUL

D/A i Q 1 1 Q 1 tr\ Ari!alr»o (1

r\r\\/f*rtf*rL^lgllcU LU .TYllalUg V—UllVCIlCI

DCO Digital Controlled Oscillator

EG Envelope Generator

FLD FT linrpsppnt Disnlnv

FREQHPF Hiph Pa^ Filter1 1*5 ClJJ 1 1111*1

INH INHibit11 ^ A 1 1 l ) 1 I

INT TMTprnint11> 1 CI 1 upi

KB-CV IVCyDUdl U VÛIHI Ul V Ullage

LFO T nw Freniienrv O^HllatorIjVJW 1 1V^Û^11V_ V V_7d^lllclLWl

MAX AA A Yim 1 1miviAVyvini mil

MFMO MFNOrvMIDI N/Iiicipul Inctnimpnt T~~jicnt!al TntprfuppIVl UMLal illoll UlllClll l^/l^lld! lllldldCC

MIN \A Ttslim 1 1mIVl 1 1 N 1 1 1 1 11 1 1

1

MOD MODuuation

MP Memory Protection

M.WHEEL Modulation WHEELOSC OSCillator

PARA PAR Amptprl rVl\/V 11 1C IC1

PRGM PROGram

PWM Puke Width Modulation1 U13V* H 1U111 IVIV/V-iLllclLiv/ll

RL R ptnrm T ineIvtLUl 111 L I 1 1 ^

ROM Read Only Memory

S/H Sample & Hold

SL Scan Line

SW SWitch

THRU THRoUghTRANS TRANSposeVA Voltage Analog

VCA Voltage Controlled Amplifier

VCF Voltage Controlled Filter

VR Variable Resistor

VO VOice

SERVICE MANUAL AX80

SAFETY INSTRUCTIONS

SAFETY CHECK AFTER SERVICING

Confirm the specified insulation resistance between power cord plug prongs and externally exposed parts of the set is

greater than lOMohms, but for equipment with external antenna terminals (tuner, receiver, etc.) and is intended for

[Cl or [aI, specified insulation resistance should be more than 2.2 Mohms (ground terminals, microphone jacks,

headphone jacks, line-in -out jacks etc.)

PRECAUTIONS DURING SERVICING

1. Parts identified by the A symbol parts are critical for safety.

Replace only with parts number specified.

2. In addition to safety, other parts and assemblies are specified for conformance with such regulations as those

applying to spurious radiation. These must also be replaced only with specified replacements.

Examples: RF .converters, tuner units, antenna selector switches, RF cables, noise blocking capacitors, noise

blocking filters, etc.

3. Use specified internal wiring. Note especially

:

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

4. Use specified insulating materials for hazardous live parts. Note especially:

1 ) Insulation Tape

2) PVC tubing

3) Spacers (Insulating Barriers)

4) Insulation sheets for transistors

5) Plastic screws for fixing microswitch (especially in turntable)

5. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap

ends of wires securely about the terminals before soldering.

6. Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.).

7 . Check that replaced wires do not contact sharp edged or pointed parts.

8. Also check areas surrounding repaired locations.

9. Use care that foreign objects (screws, solder droplets, etc.) do not remain inside the set.

Voltage conversion

Models for Canada, USA, and Japan are not equipped with this

facillity. Each machine is preset at the factory according to its des-

tination, but some machines can be set to 1 10V, 120V, 220V or

240V as required.

If your machine's voltage can be converted:

Before conmnecting the power cord, trun the VOLTAGE SELEC-

TOR located on the bottom panel with a screwdriver until the cor-

rect voltage is indicated.

2

SERVICE MANUAL AX80

SECTION 1

SERVICE MANUAL

TABLE OF CONTENTS

I. SPECIFICATIONS 4

II. DISMANTLING OF METHOD 5

DDL CONTROLS AND UNIT CONNECTIONS 6

IV. THE KEYBOARD RELATIONSHIP TO EQUALLY TEMPERED SCALE FREQUENCES

AND MUSICAL NOTATION 8

V. PRINCIPAL PARTS LOCATION 9

VI. AX80 IC BERSIONS 9

VII. ADJUSTMENT PROCEDURE FOR AX80 VOICE PCB 1

1

1. PREPARATIONFORTHE ADJUSTMENT 11

2. OFFSET ADJUSTMENT (ADJUSTMENT OF SAWTOOTH WAVE LEVEL ONOCO-2) 1

1

3. ADJUSTMENT OF SAWTOOTH WAVE LEVEL 13

4. RESONANCE FREQUENCY ADJUSTMENT 14

5. LOADING A+B BANK DATA AND CONFIRMATION 14

0u92

This Manual is FOR INTERNAL USE ONLY and must not be made

available to unauthorized personal. No part of this manual may be re-

produced in any form without permission from AKAI-ELECTRIC CO.,

LTD., Tokyo, Japan.

a

SERVICE MANUAL AX80

3

I. SPECIFICATIONS

Key 6 1 Key C scale

Voice 8 voice- 16 OSC, 8 Sub Osc

Key touch sense VCA + VCF

Sample sounds 32 Sounds (Factory programmed)

Memory bank A and B, each 32 sounds (User programmable)

OSC-1 1. FREQ RANGE (16\8\4')

2. WAVE (OFF, K , J~L ,MIX)

3. PW (DUTY 50% to 90%)4. PWM speed (Rate 0. 1 to 20Hz)

5. SUB OSC (ON,OFF)6. OSC - 1 Level

7. FREQ RANGE (16', 8',4', 2', adjustment by 100 cent

steps)

8. Detune (±36 cents)

9. WAVE (OFF, , ,MIX)10. CROSS MOD (OFF, 1,2)

11. EG depth

12. EG select (VCF, VCA)13. OSC-2 Level

1 4. Cut off freq (less than lOHz, more than 20Hz)15. Resonance

16. EG depth

17. Key follow (0 to 150%)

18. Key velocity

19. H.P.F.

20. 33,37, Depth

21. 34, 38, Speed (0.1 to20Hz)22. 35, 39, Delay (0 to 5 sec.)

23. 36, 40, WAVE (XL, |\ , A > A )

24. LFO select (OSC-1 , OSC-2, VCF)25. 41 Attack

OSC-2

VCF

LFO

EG26. 42 Decay

27. 43 Sustain

28. 44 Release

29. 45 Key follow

30. EG select (VCA, VCA/VCF, VCF)Two independent EG systems enable the following range of set-

tings to be achieved.

VCA: 25 29

VCA, VCF: 25 29

VCF: 41 45

31. Key velocity,

32. Level

Tune ± 50 cents

Wheel Modulation (OSC, VCF)/Pitch bend (± 1200 cents in 100 cent

steps)

MIDI Key number, Key velocity, Pitch bender, Program change, Con-trol change (Modulation wheel, Sustain SW), Transmit/Receive

channel select

External jack Audio out OdBv (IV) max (Monophonic), Headphone (Stereo),

Sustain nedal Proeram nn nedal Tanp mpmnrv OT IT^

MIDI jacks (IN,OUT,THRU)

Dimensions 1,018 (W)x 102 (H)x 392 (D) mm (40.1 x4.0x 15.4 inches)

Weight 15.2kg (33.4 lbs)

* For improvement purposes, specifications and design are subject to change without prior notice.

II. DISMANTLING METHOD

2-1. How to open the Front Cover

OPEN

Fig. 2-2

1 ) Remove nine screws in Fig. 2- 1

.

2) Open the Front Cover as shown in Fig. 2-2.

(Be careful not to damage the wires holding the Front

Cover while it is opened)

2-2. How to dismantle the Keyboard Block and bend Panel Block. (Refer to Fig 2-3)

KEYBOARD BLOCK ! SCREW X 5BEND PANEL BLOCK \ SCREW X 4

Fig. 2-3

1 ) Remove the screws in group A (5 screws) for the Key-

board Block, and the screws in group B (4 screws) for

the Bend Panel Block (Refer to Fig. 2-3)

2) Then disconnect the connectors P3 on CPU PCB for

the Keyboard Block and PI & P2 for the Bend Panel

Block. (Refer to Fig 2-2)

- SERVICE MANUAL AX80-

5

III. CONTROLS AND UNIT CONNECTIONS

SERVICE MANUAL AX80

6

This control is used to tune the pitch.

At the maximum setting, the tuning canbe adjusted over a range of ± 50cents. Tuning the control towards #

will increase the pitch while turning it

KEY TRANS button and indicator

(Key Transpose)This key is used to transpose the keyover a

toC

EDIT CONTROL UP/DOWN buttonsUse these buttons during the edit modeto change the respective parameterdata by one increment at a time. While

also functioning as data fine adjust-

ment buttons, during a performance for

example, the buttons will also operate

-MIDI buttonUse this button to set the MIDI trans-

mission/reception channel. The trans-

mission/reception channel will be ini-

tialized to channel 1 when the power is

turned on.

M. WHEEL TCF button andindicator (Modulation WheelVoltage Control Filter)

Use this button to enable the cut-off

frequency of the VCF to be controlled

by the I.WNr-Press this bi

the

go out.

indicator (Modulation WheelOscillator) -Use this button to enable the oscillation

frequency of the oscillators (OSC-1 &OSC-2) to be controlled by the .WHEEL. Press this button once again to

cancel the f

tor to go out.

IT button andindicator

>n Is used whencertain chord, or for single-finger

chording, etc.. when the use of a memo-rized chord is required.

To cancel f"

HOLD button and indicator -Press this button to extend (h

note of the key depressed c

- WRITE button and indicatorUse this button to memorize the voice

data created during EDIT mode ontomemory banks A or B. Press the EDITbutton to cancel this function during

- TAPE button and indicatorThis button is used to save (record) the

voice data memorized in the respective

banks (A, B or PRESET) of the AX80onto tape, to verify (confirm) the voice

data recorded on tape, or to load the

recorded voice data into banks A or BoftheAXSO.To cancel this function, press tl

button when the t

EG/VCA Mode Di. .

causing the indicators to go out.

A, buttons and indicatorsThese buttons are used to memorizethe voice data created during the edit

mode, or when utilizing the voice datafor the memory banks A and B.

It ie possible to write new data into

these memory banks.

Voice data has already been memo-rized onto the respective memorybanks A and B. It is advisable to first

save these voice data onto tape before

memorizing voice data created during

the edit mode, since entering new di

EDIT button and Indicator -This button is used for the application

of voice data memorized In the A, B, or

PRESET banks for the creation of en-tirety new voice data.

-OUTPUT controlUse this control to adjust the output

level of the MTPBT jack or the PUSHES

Fig. 3-2

- SERVICE MANUAL AX80-

IV. THE KEYBOARD RECATION-SHIP TO EQUALLYTEMPEREDSCALE FREQUENCES AND

MUSI-CALNOTATION.

rr 1 1 1

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• Piano keyboard -

AX 80 keyboard coverage* -

•X- Key board Coverage

by Frequency RangeSetting (El or E7)

16': Ci-Ce

8': C2-C7

4': C 3 -C 8

2': C4-C9

Piano: A 0-A e

Fig. 4-1

SERVICE MANUAL AX80-

V. PRINCIPAL PARTS LOCATION

VI. IC VERIONS

1) There are three versions of AX80s by using different

types, lot numbers and programs of ICs.

2) These IC combinations must be used for the optimum

results.

3) Three combinations.

ROM IC4 (//PD2764 D) Voice IC 106-806 in VOICEin CPU PCB. PCB (ECM3372)

Program Versions Types Lot Numbers

I B 8425

I B 8427

K C N/A

4) How to distinguish the differences.

yr 842

EM 337 2

8425 3I60B-OI

I CEM 3372 I CEI

| 8427 3I60B-0I | 306. _

INDICATING TYPES

3372

3060C-0I

}|S I AX-80 I IaX-80k|

INDICATING PROGRAM VERSIONS.

Fig. 6-1 r


9

5) Location of the ICs (Refer to Figs. 6-2 & 7-1).

Fig. 6-2

10

SERVICE MANUAL AX80

VII. ADJUSTMENT PROCEDURE FOR VOICE PCB

D

TP2 TP3 TP4 TP5

OFF-SET AD

J

0VRI02 VR202

© © ©R302 VR<02 VRSO<

©VB602 VR702 VR802

SAWTOOTH WAVE LEVEL AOJ

©PI VRI

r~^TP 1

—

© © ©VRIOI VR20I VR30I

RESONANCE ADJ—i

1 1 1 1—

r

T p, 0

© © © © ©VR40I VR50I VR60I VR70I VR80I

•FRONT

VOICE PCB LI003A50IO

XALL THE IC« ( ICI06to806: CEM 3372 )

Fig. 7-1

7-1. PREPARATION FOR THE ADJUSTMENT* It is recommended to save A & B bank data onto a cas-

sett tape, and verify A & B bank data.

* It is requied to warm the unit up for 5 minuits before

the adjustment of the resonance frequency for each

voice.

* Make sure to load A & B bank data from the cassette

tape after repair or/and adjustment was completed.

7-2. OFFSET ADJUSTMENT (ADJUSTMENT OFSAWTOOTH WAVE LEVEL ON DCO-2)

1) Turn on the unit, then the unit will be initialized in

the PI (Preset l)mode.

2) Set the unit to Edit mode and set the parameters as

follows.

Parameter

ButtonFunction Display Data

6 OSC-1 LEVEL 0

7 FREQ RANGE 16

8 DETUNE 50

9 WAVE 1

10 CROSS MOD 0

11 EG DEPTH 50

13 OSC-2 LEVEL 99

14 CUT OFF FREQ 99

15 RESONANCE 0

16 EG DEPTH 50

17 KEY FOLLOW 0

18 KEY VELOCITY 0

19 HPF 0

24 LFO SELECT 2

33 LFO 0

30 EG SELECT 1

25 ATTACK 0

26 DECAY 0

27 SUSTAIN 99

28 RELEASE 0

31 KEY VELOCITY 0

32 LEVEL 99

SERVICE MANUAL AX80

11

3)Turn off the Memory Protect SW.

4) Save the above parameters to one of Memory Bank

(e.g. Bl) and turn ON the Memory Protect SW.

5) Select any Memory Bank or Preset. Do not touch

any keys.

6) Select the Memory Bank again where the above par-

ameters are saved (e.g. Bl).

7) Connect the oscilloscope probe to IC 101 Pin 1.

8) Set the oscilloscope range so that the waveform can

be seen clearly.

9) Press one-octave lower C key (C5) from the highest

C key (C6) as the 1st key to press.

10) Check peak-to-peak voltage of the waveform.

2VEi

....

V

\ \

\ V S£TI>

\N

\\ \ If\ VJl

^1

Fig. 7-2 Output waveform when C5 is depressed.

1 1) Connect the oscilloscope probe to Pin 1 of the fol-

lowing ICs and read peak-to-peak voltages.

Key No. ICNo.

2nd key D5 IC201

3rd key E5 IC301

4th key F5 IC401

5th key G5 IC501

6th key A5 IC601

7th key B5 IC701

8th key C6 IC801

* Key numbers are indicated as the FREQ RANGE at

"16" setting (See Fig. 4-1).

'PICAU

Fig. 7-3 Output waveform when C6 is depressed.

12) Determine the average peak-to-peak voltage (i.e.

lOVp-p) from above readings.

13) Connect the oscilloscope probe to IC101 Pin 1.

14) Press the lowest C key (CI) and read peak-to-peak

voltage, then change the connection to IC201 pin 1,

press the next higher key (Dl) and read Peak to Peak

voltage in the same manner as the item 1 1) above.

1 5) Find the lowest Peak-to-peak voltage and adjust by

turning VR1 to that so that this lowest peak-to-peak

voltage on this particular voice will be the same as

the average peak-to-peak voltage from the item 12.

Fig. 7-4 Output waveform of lowest Peak-to-Peak voltage

16) If you can not go back to this voice number, simply

switch to the other Memory Bank then back to the

same bank as the item 6 (e.g. Bl).

17) Press the lowest C key (CI) as the 1st key then next

higher key until you get the voice you want.

18) Adjust VR1 as same manner as the item 15.

12

SERVICE MANUAL AX80

7-3. ADJUSTMENT OF SAWTOOTH WAVE LEVEL

1) Turn the power off and on again.

Do not touch any keys on the keyboard.

2) Select the Memory Bank (e.g. Bl) used for the previous

adjustment.

3) Set the unit to Edit mode and set the parameters as

follows.

Parameter Button Function Display Date

1 FREQ RANGE 16

2 WAVE 2

3 PW 0

4 PWM 0

5 SUBOSC 0

6 OSC-1 LEVEL 99

13 OSC-2 LEVEL 0

24 LFO SELECT 1

20 LFO 0

4) Connect the oscilloscope probe to the Test Point C38(TP)

and TP-IO(GND).

5) Press the key from C 1 to C2 one by one and adjust by turning

VR102 to VR802 for required Voice No.(refer to the table

below),so that the duty cycle of the square waveform is 50%.

VOICE No. VR No *Key No

1 102 CI (Lowest)

2 202 Dl3 302 El

4 402 Fl

5 502 Gl6 602 Al

7 702 Bl

8 802 C2

* Key numbers are indicated as the FREQ RANGE at

"16" setting (See Fig. 4-1)

500mV >2mS W SOOmV ~=

>2mS

Fig. 7-5 (a)

Square waveform

Fig. 7-5 (b)

7-4. RESONANCE FREQUENCY ADJUSTMENTPlease refer to the Item 5-1 prior to this adjustment.

1) Turn the power off and on again to initialize the uni-

t(in the PI mode). Do not touch any keys on the key-

board.

2) Then set the unit to Edit mode and set the parameters

as follows.

Parameter Button Function Display Data

6 OSC-1 LEVEL 0

13 OSC-2 LEVEL 0

14 CUT OFF FREQ 50

15 RESONANCE 99

16 EG DEPTH 50

17 KEY FOLLOW 0

18 KEY VELOCITY 0

19 HPF 0

25 ATTACK 0

26 DECAY 0

27 SUSTAIN 99

28 RELEASE 0

29 KEY FOLLOW 0

31 KEY VELOCITY 0

32 LEVEL 99

3) Connect the tuner (e.g. KORG MODEL AT- 12) to

the output jack with a connection cable (or Connect

the frequency counter to TP-9 (HOT) and TP- 10

(GND)).

4) Press the lowest key (C2) and adjust by turning VR101

for Voice 1 to get the reading ofA3 # on the tuner (for

the frequency counter,reading will be 233Hz).

5) Adjust the other voices in the same manner. Refer to

the table below.

Key No. VR No. Reading Voice No.

D2 201 A3# or233Hz 2

E2 301 A3 # or zJiriz 5

F2 401 A3# or233Hz 4

G2 501 A3# or 233Hz 5

A2 601 A3# or 233Hz 6

B2 701 A3# or 233Hz 7

C3 801 A3 # or 233Hz 8

* Key number are indicated as the FREQ RANGE "8"

setting (See Fig. 4-1)

6) Go back to the 1st Vioce (Press the lowest Key:C2) to

check drift of the frequency and readjust if nessessory,

then check next VOICE No. up to the Voice No.8 as

the same manner as the item 5.

7-5. LOADING A + B BANK DATA ANDCONFIRMATION.

1 ) Turn off the Memory protect SW.

2) Load and verify A & B bank data.

3) Turn on the Memory Protect SW.

4) Press all the keys of the keyboard one by one to make

sure all the keys are functioning with one of the Preset

Sound (e. g. PI)

5) Press one of the key of the keyboard and check all the

Preset, A and B Bank Sounds (i.e. P1-P32, A1-A32

and B1-B32) to make sure there will be proper sound-

ing output.

VIII. PC BOARD TITLES & IDENTIFICATION NUMBERS

PC Boaod Title PC Board Number

VOICE PC BOARD L1003A5010

CPU PC BOARD L1003A5020

FLD(l) PC BOARD L1003A512A

OPERATIONS) PC BOARD L1003A512B

JACK PC BOARD L1003A512C

FLD(2) PC BOARD L1003A513A

OPERATION(l) PC BOARD L1003A513B

OPERATIONS) PC BOARD L1003A513C

POWER SUPPLY PC BOARD L1003C5090

FILTER PC BOARD L1003D5140

MUTING PC BOARD L1003D5150

SERVICE MANUAL AX80

14

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S t t 8 K s g g g 3 g s g g S g s g g g g g s 8 g g

H M ^

-8 g g g g 8 g g g ? s g g 8 g g g g g g ? g g g g g

2 - e o o • H o o o o o o

N „ c - H

° S s s * g s s 8 g g 3 g 8 g g 8 8 g g £ 8 S

S s ? S s 8 S S S s § s S § s s s s §9

s § § t I ? £ 1

I

s g g g g g g $ a 8 g g g g g g

g g g 8

a g g a 8 8 8 a a a a 8 g g

s3 8 s s £ s 1 S a a s s 1 S i s 8 g S

a3 s g 8 S R 2

? S 8 g S s R

S - -

s s • 5

[,l ° ;

S 3 5 • °S

5 a

° ° s

8 8 s a 2 a

, 8 -

° ° 5

* 8 S R S

lis o 5

r s - - - - -

r

°

"

-

1 n o ° ° s

ss ° S a o

R ° °z

o ° ° ° °

-

° ° ° a

r "* -

.. ° ° °

!.>• ° a

Li s- ° °

r2 "

5

° g °

- ° °

s" 8 g 5

5 8 ° s s

£ - S S «, - 2

L 2 8, s a S S

r- S 8 g s g s

s - - - - -

= ? s S K s s

2 o o - o H -

- - „

s s

1s I S s £ S

s g s g g

£

a 8 g a g

s

2 2 2 2 £ E z I 1 Z Z Z z z g 5 2 S 5 & E S s s 2 2

SECTION 2

PARTS LIST

TABLE OF CONTENTS

RECOMMENDED SPARE PARTS 21

1. PC BOARD BLOCK 22

2. VOICE PC BOARD 22

3. CPU PC BOARD 23

4. FLD (2) PC BOARD 23

5. FLD (1) PC BOARD 23

6. OPERATION (1) PC BOARD 23



9. JACK PC BOARD 23

10. POWER SUPPLY PC BOARD 24

11. FILTER PC BOARD 24

12. MUTING PC BOARD 24

13. PANEL BEND BLOCK 25

14. ASSEMBLY BLOCK 27

15. FINAL ASSEMBLY BLOCK 27

INDEX 28




LTD., Tokyo, Japan.

PARTS LIST AX80

19

ATTENTION

1 . When placing an order for parts, be sure to list the parts no. model no., and description of each part. If any of

this information is omitted, there are instances in which parts cannot be shipped or the wrong parts will bedelivered.

2. Please be careful not to make a mistake in the parts no. If the parts no. is in error, a part different from the

one ordered may be delivered.

3. Because part numbers and part definitions and supply in the Preliminary Parts List may have been the subject

of chan.es, p.ease use this parts .is, for a,, future reference.

HOW TO USE THIS PARTS LIST

1 . This Parts List shows those parts which are considered necessary for repairs. Other parts, such as resistors and

capacitors, are shown in the "Common List for Service Parts" from which these parts should be selected and parts.

2. The Recommended Spare Parts List shows those parts in the Parts List which are considered particularly important

for service.

3. Parts not shown in the Parts List and "Common List for Service Parts" will not in principle be supplied.

4. How to read the parts list

a) Mechanism Block b) P.C Board Block

2. HEAD BASE BLOCK 6. SYS. CON. P C BOARD BLOCK

PART NO. DESCRIPTION

BH-T2023A320A HEAD BASE BLOCK GX-F66RHP-H2206A010A HEAD R/P PR4-8FU CZS-477876 PAN20x03STL CMTZS-536488 BID20x08STL CMTZG-402895 CS ANGLE ADJUST SPRING

SP (Service Parts) Classification

-A small "x" indicates the inability to

show that particular part in the Photo or

Illustration.

-This number corresponds with the in-

dividual parts index number in that figure

-This number corresponds with the Figure -

Number

PART NO.

BA-T2034A070AEI-324536

EI-336801

EI-331661

EI-336725

ET-200985ET-554657ED-318292ED-308952ED-318292EI-318

L318384

DESCRIPTION

PC SYS CON BLK GX-F44RIC HD14049BPIC MB8841-564MIC SN7405NIC M54527PTR 2SC2603 F,GTR 2SA7 33A P,Q

D SILICON H 1S247 3T-77 T26D GERMA V 1K34A-LR F07D SILICON H 1S2473T-77 T26OSC X'TAL NC-18C

3.579545MHZ

SP (Service Parts) Classification

-These reference symbols correspond withcomponent symbols in the SchematicDiagrams.

5. The kind of part and its installation position can both be determined by the Part Number. To determine where a

part number is listed, utilize the Parts Index at the end of the Parts List. It is necessary first of all to find the Part

Number. This can be accomplished by using the Reference Number listed at the right of the part number in the Parts

Index.

WARNING

A INDICATES SAFETY CRITICAL COMPONENTS. FOR CONTINUED SAFETY, REPLACE SAFETYCRITICAL COMPONENTS ONLY WITH MANUFACTURE S RECOMMENDED PARTS

AVERTISSEMENT

AIL INDIQUE LES COMPOSANTS CRITIQUES DE SECURITE. POUR MAINTENIR LE DEGREDE SECURITE DE L'APPAREIL, NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE

20

PARTS LIST AX80-

RECOMMENDED SPARE PARTS LIST

Because, if the parts listed below are on hand, almost any

repair can be accomplished, we suggest that you stock

these Recommended Spare Parts Items.

REF.

NO.PART NO. DESCRIPTION

1 N BT-354247 ATRANS POWER AX-80 T-10 [J]

2 N BT-354246 ATRANS POWER AX-80 T-30 [C, A]

3 N BT-3 54245 ATRANS POWER AX-80 T-70 [U, E,

4 N ED-357036

B, S]

Ad silicon dba20b 100/2.0A

5 N ED-357038 AD SILICON DBB10B 100/ 1.0

A

6 ED-337265 AD ZENER H HZ6 C27 N ED-3541 14 D LED BR-5507S RED8 N ED-357037 D SILICON DBA30B 100/3.0A

9 ED-30191

1

D SILICON H DS44810 ED-344280 D SILICON H GMA-01-FY2 F05

1 1 ED-315614 DSILICIN 10D1FA-1 F15 100/1.OA12 ED-3 10387 D ZENER H HZ 12 B2

13 ED-329058 D ZENER HHZ5 CI

14 ED-306010 D ZENER H HZ6 A215 EF-602550 AFUSE SEMKO T 1 .25A 250V [U, E, B,

16 EF-691007

S]

AFUSE SEMKO T 3. 1 5A 250V [U, E, B,

17 EF-258344

S]

AFUSE SEMKO T 800MA 250V [U, E,

18 EF-306949

B, S]

AFUSE TSC A 250V 1 .25A [J]

19 EF-31 1839 AFUSE TSC A 250V 1 .60A [J]

20 EF-326639 AFUSE TSC A 250V 3. 1 5A [J]

21 EF-309392 AFUSE TSC 125V 1.25A [C, A]

22 EF-308847 AFUSE TSC 1 25V 1 .60A [C, A]

23 EF-306956 AFUSE TSC 125V 2.50A [C, A]

24 EF-323080 AFUSE TSC 1 25V 3. 1 5A [C, A]

25 N EI-354283 ICBA61 10

26 N EI-354184 IC CEM3372 3 160B (B TYPE)27 N EI-359630 IC CEM3372 3160C (C TYPE)28 N EI-354098 IC HD74LS154P2 l

) N EI-355578 IC MM74HC139N30 N EI-354162 IC MM74HC32N33 EI-307644 IC NJM4556D32 EI-2 13390 IC NJM4558D33 EI-336995 IC NJM78L05A34 N EI-354175 IC NJM78M0535 N EI-355665 IC NJM7815A36 N EI-356299 IC NJM79M05A37 N EI-355666 IC NJM7915A38 N EI-354158 IC SN74LS00N39 EI-3 10043 IC SN74LS03N40 N EI-354152 IC SN74LS138N41 N EI-354159 IC SN74LS14N42 N EI-355560 IC SN74LS27N43 N EI-355575 IC SN74LS293N44 N EI-354153 IC SN74LS373N45 N EI-355771 IC SN74LS38N46 N EI-353315 IC SN74LS42N47 EI-304657 IC TC4011BP48 EI-306727 IC TC4013BP/MC140I3B49 EI-330391 IC TC4050BP50 EI-302233 IC TC4051BP51 EI-324255 IC TL082CP52 N EI-354099 IC //PA80C

53 N EI-354197 IC jiPC311C

REF.

NO.

56 N57 N58 N59 N60 N61 N62 N63 N64 N65 N66 N67 N

75 N76 N77

78 N79 N80

81

82

83

84

85

86 N87 N

88 N89 N90 N91 N


EI-354145 IC //PD2764D I (I TYPE)EI-35963 1 IC /iPD2764 K (K TYPE)EI-354147 IC//PD446C-1

EI-357060 ICjiPD7811G-144

EI-354146 IC^PD8253C-2EI-354149 IC//PD8255AC-2

EI-354232 IC^PD8279C-2EI-354123 OSCCECSA120MT 1 2.000000MHzEI-354 1 68 OSC X'TAL HC- 1 6 6.554800MHzEJ-354235 DIN J TCS0815-0101 5P

EJ-357159 PHONE J 2P HLJ0520-1 10 W/NUT 6.3

EJ-353031 PHONEJ3PHLJ0520-010EM-3 54097 IND FL BG-263ZK CHARACTEREM-354113 IND LE TLR325EM-354112 IND LE TLR353EO-3 54224 COIL LF PLA202 1

A

EQ-348929 REALAY SIG G5A-232P 2TR 1 2

V

ER-320528 AR FUSE ERD2FC 1 /4W 22R0GES-355573 ASW SEESAW SDDAB1097A T = 8.5

[C A]

ASW SEESAW SDDJA 1 1 53A [J, U. E,

B, S]

ASW SELECTOR YKS1 1-0002 02-4

[U E B S]

ES-357045 SW SLIDE SSSB02685A 2-02-02N'

ES-354115 SW TACT SKHCAC02 1

A

ET-347026 ATR 2SB507HP E, FET-354167 PHOTO SENSOR PC900ET-357061 PHOTO SENSOR TLP531BLET-491051 TR FET 2SK30A GRET-322778 TR 2SA608K-NP E, F, GET-308141 TR2SC2603GET-403413 TR 2SC536NP HEV-307695 R S-FIX H H0651A 3P0.05W 104

EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

EV-354255 VR ROTARY 16L10XOV B103

EV-354254 VR ROTARY 16L10XOW 103 CUS-TOM-2

EV-358043 VR ROTARY 16L10XOX B103 L = 20

EV-354253 VR ROTARY 16P20x3T A503EV-354256 VR ROTARY 24L10x 1G B01

3

EZ-354 1 69 BATTERY LITHIUM 3V CR2430-T

68

69

70

71

72

73 N ES-354236

74 ES-349070

"NOTE" N: New Part

SYMBOL FOR DESTINATION

[A] AAL(U.S.A)

[B] UK (England)

[C] CSA(Canada)

[E] CEE (Europe)

[J] JPN (Japan)

[S] SAA (Australia)

[U] U/T (Universal Area)

PARTS LIST AX80

21

1. PC BOARD BLOCK

PART NO.

121-3A BA-L1003A120A

1-3B BA-L1003A120B1-4 BA-L1003A130A1-5A BA-L1003A050A1-5B BA-L1003A050B1-5C BA-L1003A050C1-6A BA-L3001A050A1-6B BA-L3001A050B1-6C BA-L3001A050C1-7 BA-L1003A140A

NOTES:

DESCRIPTION

PC VOICE BLK AX80PC CPU BLK AX80[U]PC PANEL (1 ) BLK AX80[U, J, E,

B. S]

PC PANEL (1 ) BLK AX80(C, A)

PC PANEL (2) BLK AX80PC POWER BLK AX80[J]

PC POWER BLK AX80[CA]PC POWER BLK AX80[U, E, B, S]

PC FILTER BLK AX80[J]

PC FILTER BLK AX80[U, E, B, S]

PC FILTER BLK AX80[C,A]

PC MUTING BLK AX80

(1) PC PANEL (1) BLK consists of following PCBOARDS.• FLD(l) PC BOARD• OPERATION (2) PC BOARD• JACK PC BOARD

(2) PC PANEL (2) BLK consists of following PCBOARDS.• FLD (2) PC BOARD• OPERATION (1) PC BOARD• OPERATION (3) PC BOARD

2. VOICE PC BOARD


2-IC1 EI-354152 ICSN74LS138N2-IC2to6 EI-302233 ICTC4051BP2-IC7 EI-2 13390 ICNJM4558D2-IC8to27 EI-324255 IC TL082CP2-IC28 EI-354283 ICBA61I02-IC101, 102 EI-213390 ICNJM4558D2-IC103. 104 EI-304657 ICTC4011BP2-IC105 EI-306727 IC TC 401 3BP/MC 1401 3B

2-IC106A EI-354184 IC CEM3372 3 160B (B TYPE)2-IC106B EI-359630 IC CEM3372 3 1 60C (C TYPE)2-IC107.201.202 EI-213390 IC NJM4558D2-IC206A EI-354184 IC CEM3372 3160B (B TYPE)2-IC206B EI-359630 IC CEM3372 3160C (C TYPE)2-IC301.302 EI-213390 IC NJM4558D2-IC303.304 EI-304657 ICTC4011BP2-IC305 EI-306727 IC TC40 1 3BP/MC 1 40 1 3

B

2-IC306A EI-354184 IC CEM3372 3160B (B TYPE)2-IC306B EI-359630 IC CEM3372 3160C (C TYPE)2-IC307.401.402 EI-213390 ICNJM4558D2-IC406A EI-354184 IC CEM3372 3 160B (B TYPE)2-IC406B EI-359630 IC CEM3372 3 160C (C TYPE)2-IC501.502 EI-213390 IC NJM4558D2-IC503.504 EI-304657 ICTC4011BP2-IC505 EI-306727 IC TC40 13BP/MC14013B2-IC506A EI-354184 IC CEM3372 3 160B (B TYPE)2-IC506B EI-359630 IC CEM3372 3160C (C TYPE)2-IC507.601.602 EI-213390 ICNJM4558D2-IC606A EI-354184 IC CEM3372 3 160B (B TYPE)2-IC606B EI-359630 IC CEM3372 3 160C (C TYPE)2-IC701.702 EI-213390 ICNJM4558D2-IC703, 704 EI-304657 IC TC401 1 BP2-IC705 EI-306727 IC TC40 13BP/MC14013B2-IC706A EI-354184 IC CEM3372 3 160B (B TYPE)2-IC706B EI-359630 IC CEM3372 3 160C (C TYPE)2-IC707.801.802 EI-213390 ICNJM4558D2-IC806A EI-354184 IC CEM3372 3 160B (B TYPE)2-IC806B EI-359630 IC CEM3372 3160C (C TYPE)2-TR1. 101. 102 ET-322778 TR 2SA608K-NP E. F, G2-TR103. 104 ET-491051 TR FET 2SK30A GR

REF.

NO.DESCRIPTION

2-TR201, 202 ET-322778 TR 2SA608K-NP E, F, G2-TR203 ET-49 105

1

TR FET 2SK30A GRET-49 1 05

1

TR FET 2SK30A GR2-TR301. 302 ET-322778 TR 2SA608K-NP E F, G2-TR303, 304 ET-49 1051 TR FET 2SK30A GR2-TR401 , 402 ET-322778 TR 2SA608K-NP E, F, G2-TR403, 404 ET-491051 TR FET 2SK30A GR2-TR501 502 TR 2SA608K-NP E F, G2-TR503, 504 ET-49 105

1

TR FET 2SK30A GR2-TR601 602 ET-322778 TR 2SA608K-NP E, F, G

FT-49I0S1 TR FET 2SK30A GR7 TR701 707 177770 TR 7SA60P.K-NP F F Ci

7-TR703 704Z- 1 IX /UJ. /U4 FT-4910S1 TR FFT 7SK30A OR7-trroi so?Z- 1 I\OU I , OUi FT-37777P,C 1 -DLL / /

0

TR 7SA60RK-NP F F G2-TR803. 804 FT-491051 TR FET 2SK30A GR2-D1 Fr)-37Q058LU-Ji7UJO D 7FNFR H H75 TlL/ / . I , . > I , IX I 1 I 1/ *J V. 1

?.n? i n l tr, in7 ED-30191

1

n sn irr>N h ns44R

2-D108. 109 ED-344280 D SILICON H GMA-01-FY2 F05

2-D201 to 207 ED-3019 1

1

D SILICON H DS4482-D208 209 ED-344280 D SILICON H GMA-0 1 -FY2 F05

2-D301 to 307 ED-30191

1

D SILICON H DS448


2-D40 1 to 407 ED-30191

1

D SILICON H DS4482-D408 409 ED-344280 D SILICON H GMA-01-FY2 F05

2-D501 to 507 ED-30191

1

D SILICON H DS448


2-D601 to 607 ED-30191

1

D SILICON H DS4482-D608, 609 ED-344280 D SILICON H GMA-01-FY2 F05

2-D701 to 707 ED-30191

1

D SILICON H DS448


2-D801 to 807 tL/-JU 17 11 D SII ICON H DS448YJ J11.1V V^. > O L/JfTO

7.D8fl8 ROQ ED-344280 D STT IPONI H HMA-01 -FY7 FOS

2-VR1 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR101 FV-307695 R S-FIX H H065 1 A 3P 0 05W 1 04ix j-riA 1 1 1 luu J in jru.ujft i

2-VR102 EV-336770 R S-FIX H H0651A 3P0.05W 473

2-VR201 EV-307695 R S-FIX H H065 1 A 3P 0.05W 1 04

2-VR202 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR301 EV-307695 R S-FIX H H065 1 A 3P 0.05W 1 04

2-VR302 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR401 EV-307695 R S-FIX H H0651A 3P0.05W 104

2-VR402 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR501 EV-307695 R S-FIX H H065 1 A 3P 0.05W 104

2-VR502 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR601 EV-307695 R S-FIX H H065 1 A 3P 0.05W 104

2-VR602 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR701 EV-307695 R S-FIX H H0651A 3P0.05W 104

2-VR702 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-VR801 EV-307695 R S-FIX H H0651A 3P0.05W 104

2-VR802 EV-336770 R S-FIX H H065 1 A 3P 0.05W 473

2-FRI ER-320528 A R FT ISF FRD7Fr 1 /4WilA IX IUOC L. IX LJ— 1 ^ i/*tw

22ROG2-R106 FR-337338CIX-J J 1 JJO R MF H F05 1 /6W 6202

F

2-R127 ER-353582 R MF H F05 1 /6W 300 1

F

2-R128 ER-353064 R MFH F05 1/6W 1502F

2-R141 ER-343989 R MF H F05 1/6W 1001

F

2-R206 ER-337338 R MF H F05 1/6W 6202F

2-R227 ER-353582 R MF H F05 1 /6W 300 1

F

2-R228 ER-353064 R MF H F05 1 /6W 1 502F

2-R241 ER-343989 R MF H F05 1 /6W 1 00 1

F

2-R306 ER-337338 R MF H F05 1/6W 6202F

2-R327 ER-353582 R MF H F05 1 /6W 300 1

F

2-R328 ER-353064 R MF H F05 1 /6W 1 502F

2-R341 ER-343989 R MFH F05 1/6W 1001

F

2-R406 ER-337338 RMFHF05 1/6W6202F2-R427 ER-353582 RMFHF05 1/6W3001F2-R428 ER-353064 RMFHF05 1/6W 1502F

2-R441 ER-343989 RMFHF05 1/6W 1001

F

2-R506 ER-337338 RMFHF05 1/6W6202F2-R527 ER-353582 RMFHF05 1/6W3001F2-R528 ER-353064 RMFHF05 1/6W 1502F

2-R541 ER-343989 RMFHF05 1/6W 1001

F

2-R606 ER-337338 RMFHF05 1/6W6202F2-R627 ER-353582 RMFHF05 1/6W 3001

F

2-R628 ER-353064 RMFHF05 1/6W 1502F

2-R641 ER-343989 RMFHF05 1/6W 1001F

22

-PARTS LIST AX80-

4. FLD(2) PC BOARD

REF.

NO.REF.

NO.PART NO.

2-R706 ER-337338 RMFHF05 1/6W6202F 4-IC1 EI-354098 ICHD74LS154P2-R727 ER-353582 RMFHF05 1/6W3001F 4-IC2, 3 EI-354099 IC juPA80C

2-R728 ER-353064 RMFHF05 1/6W 1502F 4-D1 ED-306010 D ZENER H HZ6 A22-R741 ER-343989 RMFHF05 1/6W 1001F 4-INl,2 EM-354097 IND FL BG-263ZK CHARACTER2-R806 ER-337338 RMFHF05 1/6W6202F2-R827 ER-353582 RMFHF05 1/6W3001F2-R828 ER-353064 RMFHF05 1/6W 1502F

2-R841 ER-343989 RMFHF05 1/6W 1001

F

5. FLD(l) PC BOARD2-C105 EC-357035 C PP V CQM-92PP 1001G 100DC2-C122 EC-328563 C EC V F05 SRA 2R2M 50.0DC REF.

PART NO.2-C205 EC-357035 C PP V CQM-92 PP 1 00 1 G 1 00DC NO.

2-C222 EC-328563 C EC V F05 SRA 2R2M 50.0DC

2-C305 EC-357035 C PP V CQM-92 PP 1 00 1 G 1 00DC 5-ICI EI-354098 ICHD74LS154P

2-C322 EC-328563 C EC V F05 SRA 2R2M 50.0DC 5-IC2 to 6 EI-354099 IC^PA80C

2-C405 EC-357035 C PP V CQM-92PP 1001G 100DC 5-IN1 to 3 EM-354097 IND FL BG-263ZK CHARACTER2-C422 EC-328563 C EC V F05 SRA 2R2M 50.0DC

2-C505 EC-357035 C PP V CQM-92PP 1001G 100DC2-C522 EC-328563 C EC V F05 SRA 2R2M 50.0DC

2-C605 EC-357035 C PP V CQM-92PP 1001G 100DC 6. OPERATION(l) PC BOARD2-C622 EC-328563 C EC V F05 SRA 2R2M 50.0DC

REF.

NO.2-C705 EC-357035 C PP V CQM-92PP 1001G 100DC PART NO. DESCRIPTION2-C722 EC-328563 C EC V F05 SRA 2R2M 50.0DC

2-C805 EC-357035 C PP V CQM-92PP 1001G 100DC2-C822 EC-328563 C EC V F05 SRA 2R2M 50.0DC 6-IC1 EI-353315 IC SN74LS42N

2-S1 to 4 EJ-358467 SOCKET IC S-I2470 6-IC2, 3

6-TR1 to 7

6-D1

6-D2, 3

EI-355771

ET-322778

EM-354112EM-354113

IC SN74LS38NTR 2SA608K-NP E, F, GIND LE TL R353 CHARACTERINDLE TL R325

3. CPU PC BOARD 6-D4 to 14 ED-3541I4 D LED BR-5507S RED6-SW1 to 14 ES-354115 SW TACT SKHCAC02 1

A

REF.

NO.PART NO. DESCRIPTION

CPU PC BOARD 7. OPERATION^) PC BOARD3-IC1, 2 EI-357060 IC /iPD7811G-144

REF.3-IC3 EI-354153 IC SN74LS373N PART NO. DESCRIPTION3-IC5.6 EI-354147 IC /iPD446C-l NO.

3-IC7 EI-355578 ICMM74HC139N3-IC8 EI-354152 IC SN74LS138N 7-SW1 to 19 ES-354115 SW TACT SKHCAC02 1

A

3-IC9, 10 EI-354149 IC /iPD8255AC-2

3-IC11 EI-354232 IC ^PD8279C-2

3-IC12

3-IC13to 15

EI-354153

EI-330391

IC SN74LS373NIC TC4050BP 8. OPERATION^) PC BOARD

3-IC16 EI-355575 IC SN74LS293NREF.

NO.3-IC17 EI-354158 IC SN74LS00N PART NO. DESCRIPTION3-IC18, 19 EI-3 10043 IC SN74LS03N3-IC20 to 25 EI-354146 IC UPD8253C-2

SW TACT SKHCAC02 1

A

3-IC26 EI-354162 IC MM74HC32N 8-SW1 to 13 ES-354115

3-IC27 EI-354197 IC /iPC311C

3-IC29 EI-354158 IC SN74LS00N3-IC30

3-IC31

EI-355560

EI-354159

IC SN74LS27NIC SN74LS14N 9. JACK PC BOARD

3-IC32 EI-3 10045 IC SN74LS08NREF.

NO.3-TR1 ET-403413 TR2SC536NPH PART NO. DESCRIPTION3-D1 to 9 ED-301911 D SILICON H DS448

3-PH1

3-PH2

3-X1

ET-354167

ET-357061

EI-354123

PHOTO SENSOR PC900

PHOTO SENSOR TLP531BLOSCCECSA120MT 12.000000

MHzOSC XTAL HC-16 6.554800 MHz

9-IC1

9-L1.2

9-R7.8

EI-307644

EO-318635

ER-306805

IC NJM4556DCOIL FIX 1 LAL04SK 2R2KRCBHS15 FS RDS 1/2W 101J

3-X2 EI-3541689-J1 EJ-357159 PHONEJ2PHLJ0520-110

W/NUT 6.33-IB1.2

3-IB3 to 6

3-IB7, 8

EH-355561 COMP R EXB-R88 103K9-J2

9-J3 to 6

EJ-353031

EJ-357159EH-355580

EH-355579

COMP R EXB-C44 203J

COMP R EXB-Q88 103J

PHONEJ3PHLJ0520-010PHONEJ2PHLJ0520-110W/NUT 6.3

3-R25 ER-355564 ROMFHS15 FS 1W 91 1J

3-BT1 EZ-354169 BATTERY LITHIUM 3VCR2430-T

3-1 EJ-349202 SOKET IC 641267-3 P28PASSEMBLY BLOCK

3-IC4A EI-354145 ICUPD2764DI(I TYPE)3-IC4B EI-359631 IC UPD2764 K (K TYPE)

PARTS LIST AX80-

23

10. POWER SUPPLY PC BOARD

^F PART NO. DESCRIPTION

10-IC1 EI-355665 ICNJM7815A10-IC2 EI-336995 Ic NJM78L05A10-IC3 EI-355666 ICNJM7915A10-IC4 EI-356299 IC NJM79M05A10-IC5 EI-354175 IC NJM78M051 0-TR 1 ET-347026 A TR 2SB507HP E, F

10-D1 ED-357036 A D SILICON DBA20B 100/2.0A

10-D2 ED-357037 A D SILICON DBA30B 100/3 .OA

1 0-D3 ED-337625 A D ZENER H HZ6 C2

1 0-D4 ED-30 1911 D SILICON H DS44810-D5 ED-315614 D SILICON 10D1 FA- 1 Fl 5

100/ 1.0A10-D6 ED-357038 A D SILICON DBB10B 100/1 .OA

10-R1 Er-338000 A R FUSE ERD2FC S10 1/4W

2200G10-R3 ER-302241 R CB H S10 FS RDS I/4W 4R7J

10-C4, 1 1 EC-323847 C EC V CUT SM 102M 35.0DC

10-C18 EC-347967 C EC V S10 KM 682M 16DC10-1 EZ-200473 SILICON RUBBER SHEET TC-3010-2 ZW-632226 INSULATOR WASHER

(BUSH M)

11. FILTER PC BOARD

DESCRIPTIONREF.

NO.

11-FL1

11-C1

PART NO.

EO-354224

EC-338411

COILLF PLA2021AACCEVFZ 103P400AC

12. MUTING PC BOARD

PART NO. DESCRIPTIONREF.

NO.

12-TR1 ET-308141 TR 2SC2603 G12-D1,2 ED-301911 D SILICON H DS448

12-D3 ED-3 10387 D ZENER H HZ12 B2

12-L1 EQ-348929 RELAY SIG G5A-232P 2TR 12V

24

PARTS LIST AX80

PANEL BEND BLOCK

PARTS LIST AX80-

25

ASSEMBLY BLOCK

14. ASSEMBLY BLOCK

REF.

NO.

14-1

E

14-2A

14-2B

14-3

14-4

14-5

14-6

14-7

14-8

14-9

14-10

14-11

14-12

14-13

14-14

14-15

14-16

14-17

14-18

14-T901A

14-T901B

14-T901C

14-C2.3

14-VR90 1,902

14-VR903

14-J901x

14-J902 to 904

14-SW901A

14-SW901B

14-SW902x


EW-306427 A AC CORD 2 CORES KP-2 1 1

,

VFFJ[J]

EW-358858 A AC CORD 2 CORES KP-1

1

SJTAWG18UC[C, A]

EW-3 15767 A AC CORD 2 CORES KP-419C/

KS-1 5 EV [U, E]

EW-322400 A AC CORD 2 CORES KS-1 5/

GTBS-2F B [B]

EW-32240 1 A AC CORD 2 CORESKP-560/KS-15S[S]

EZ-63 1 945 STRAIN RELIEF SR-4N-4 [J]

EZ-302906 STRAIN RELIEF SR-6N-4 [C, A]

SA-311742 ROUND FOOTZS-353260 T2BR30x08STLCMTCUPZS-341960 ST BID40x06STL BNI

TC-690851 SPACER 4x10

ZS-355569 Tl BID30x20STL CMTZW-357644 PW32x 100x050STL BNI

BK-354243 KEYBOARD BLK ESK-30 61 KEYZS-354230 BID50x08STL BNI

ZS-411232 BID40xlOSTLBNIZW-4 13267 N FRANGE 40STL CMTSE-357978 KNOB BASE (C)

SK-3 54544 KNOB BASE (B)

MH-3 14988 SPACER 6x10

EJ-357148 FUSE HOLDER NPF073-0 1-0 10

MZ-358512 WIRE LEAD EARTH RAGx2MH-358770 PROP HOLDERBT-354247 A TRANS POWER AX-80 T- 10

[J]

BT-354246 A TRANS POWER AX-80 T-30

IP, A]

BT-3 54245 A TRANS POWER AX-80 T-70

[U,E, B,S]

EC-358450 A C CE V B 102M 400AC [C, A]

EV-358043 VR ROTARY 16L10XOX B103

L=20

EV-354256 VR ROTARY 24L10x 1G B013

EJ-301513 A SOCKET INLET S-I6453 E 2P

[U, E, B, S]

EJ-354235 DIN J TCS08 15-0101 5P

ES-354236 A SW SEESAW SDDJA 1 1 53

A

01-1 (J, U, E, B, S)

ES-355573 A SW SEESAW SDDAB1097AT=8.5 [C. A]

ES-349070 A SW SELECTOR YKS 1 1 -0002

02-4 (U, E, B, S)

REF.

NO.

14-SW903

14-F1A

I4-F1B

14-F1C,F2

14-F3A

14-F3B

14-F3C

14-F4A

14-F4B

I4-F4C

14-F5A

14-F5B

14-F5C

14-F6A

14-F6B

14-F6C

^RTS NO. DESCRIPTION

ES-357045 SW SLIDE SSSB02685A 2-02-02N

EF-326639 A FUSE TSC A 250V 3. 1 5A (J)

EF-306956 A FUSE TSC 1 25V 2.50A (C, A)

EF-602550 A FUSE SEMKO T 1 .25A 250V

[U, E, B, S]

EF-326639 A FUSE TSC A 250V 3. 1 5A (J)

EF-323080 A FUSE TSC 125V 3.1 5A [C, A]

EF-691007 A FUSE SEMKO T 3.1 5A 250V

[U, E, B, S]

EF-31 1839 A FUSE TSC A 250V 1.60A [J]

EF-308847 A FUSE TSC 125V 1.60A [C, A]

EF-258344 A FUSE SEMKO T 800MA 250V

[U, E, B, S]

EF-311839 A FUSE TSC A 250V 1 .60A [J]

EF-308847 A FUSE TSC 125V 1 .60A [C, A]

EF-258344 A FUSE SEMKO T 800MA 250V[U E B S]

EF-306949 A FUSE TSC A 250V 1 .25A [J]

'

EF-309392 A FUSE TSC 1 25V 1 .25A [C, A]

EF-602550 A FUSE SEMKO T 1 .25

A

[U, E, B, S]

15. FINAL ASSEMBLY BLOCK

REF. PART NO. DESCRIPTIONNO.

15-1A BD-B354537A PANEL FRONT AX80[J] PART [J]

1 5-1

B

BD-B354537B PANEL FRONT AX80 [A, C]

PART [C, A]

15-1C BD-B354537C PANEL FRONT AX80 [E, V, B, S,

U] PART [U, E, B, S]

15-2 SZ-354538 SHEEET MEMBRANE15-3 SP-354533 PANEL KEYBOARD15-4 ZS-447761 T2BR30x06STL BNI (PANEL

KEYBOARD FIX)

15-5 SP-354535B SIDE PLATE (L) PAINT15-6 ZS-342736 ST BID40x20STL BNI15-7 ZW-535768 PW42x090x050STL BNI15-8 SE-354539 WINDOW FRONT FLD15-9 SK-B352952X5 KNOB MONITOR BLUE PART15-10 SK-B352952X4 KNOB MONITOR WHITE PART15-11 SK-354540 KNOB DATA15-12 SP-354549B SIDE PLATE (R) PAINT

-PARTS LIST AX80-

27

INDEX

AX80

PART NO. REF. NO. PART NO. REF. NO. PART NO. REF. NO. PART NO. REF. NO.

BA-L1003A030A 1-2 ED-301911 2-D502 EH-355561 3-IB2 EI-354099 5-IC3

BA-L1003A040A 1-1 ED-301911 2-D603 EH-355561 3-IB1 EI-354099 5-IC2

BA-L1003A050A 1-5A ED-301911 2-D104 EH-355579 3-IB7 EI-354099 5-IC6

BA-L1003A050B 1-5B ED-301911 2-D706 EH-355579 3-IB8 EI-354099 5-IC5BA-L1003A050C 1-5C ED-301911 2-D805 EH-355580 3-IB5 EI-357060 3-IC2BA-L1003A120A 1-3A ED-301911 2-D101 EH-355580 3-IB6 EI-354123 3-X1BA-L1003A120B 1-3B ED-301911 2-D404 EH-355580 3-IB4 EI-354145 3-IC4ABA-L1003A130A 1-4 ED-301911 2-D701 EH-355580 3-IB3 EI-354146 3-IC25BA-L1003A140A 1-7 ED-301911 2-D601 EI-2 13390 2-IC707 EI-354146 3-IC22BA-L3001A050A 1-6A ED-301911 2-D705 EI-2 13390 2-IC702 EI-354146 3-IC23

BA-L3001A050B 1-6B ED-301911 2-D405 EI-2 13390 2-IC802 EI-354146 3-IC24BA-L3001A050C 1-6C ED-301911 2-D202 EI-2 13390 2-IC7 EI-354146 3-IC20BD-B354537A 15-1A ED-301911 2-D203 EI-2 13390 2-IC101 EI-354146 3-IC21

BD-B354537B 15-1B ED-301911 2-D703 EI-2 13390 2-IC102 EI-354147 3-IC6BD-B354537C 15-1C ED-301911 2-D105 EI-2 13390 2-IC507 EI-354147 3-IC5BD-L1003A020A 13-1 ED-301911 2-D107 EI-2 13390 2-IC701 EI-354149 3-IC10BK-B354243 14-9 ED-301911 2-D2 EI-2 13390 2-IC401 EI-354149 3-IC9

BT-354245 14-T901C ED-301911 2-D106 EI-2 13390 2-IC307 EI-354152 2-IC1

BT-354246 14-T901B ED-301911 2-D201 EI-2 13390 2-IC402 EI-354152 3-IC8BT-3 54247 14-T901A ED-301911 3-D5 EI-2 13390 2-IC801 EI-354153 3-IC3

EC-323847 10-C4 ED-301911 3-D9 EI-2 13390 2-IC601 EI-354153 3-IC12EC-323847 10-C11 ED-301911 3-D6 EI-2 13390 2-IC502 EI-354158 3-IC17EC-328563 2-C822 ED-301911 3-D3 EI-2 13390 2-IC501 EI-354158 3-IC29EC-328563 2-C622 ED-301911 3-D4 EI-2 13390 2-IC201 EI-354159 3-IC31

EC-328563 2-C122 ED-301911 3-D2 EI-2 13390 2-IC302 EI-354162 3-IC26EC-328563 2-C522 ED-301911 3-D1 EI-2 13390 2-IC602 EI-354168 3-X2EC-328563 2-C322 ED-301911 10-D4 EI-2 13390 2-IC107 EI-354175 10-IC5

EC-328563 2-C422 ED-301911 12-D2 EI-2 13390 2-IC202 EI-354184 2-IC806AEC-328563 2-C222 ED-301911 12-D1 EI-2 13390 2-IC301 EI-354184 2-IC706AEC-328563 2-C722 ED-306010 4-D1 EI-302233 2-IC2 EI-354184 2-IC306A

EC-338411 11-C1 ED-3 10387 12-D3 EI-302233 2-IC6 EI-354184 2-IC406AEC-347967 10-C18 ED-315614 10-D5 EI-302233 2-IC5 EI-354184 2-IC506AEC-357035 2-C605 ED-329058 2-D1 EI-302233 2-IC4 EI-354184 2-IC106AEC-357035 2-C505 ED-337265 10-D3 EI-302233 2-IC3 EI-354184 2-IC606AEC-357035 2-C405 ED-344280 2-D409 EI-304657 2-IC703 EI-354184 2-IC206AEC-357035 2-C305 ED-344280 2-D408 EI-304657 2-IC103 EI-354197 3-IC27EC-357035 2-C705 ED-344280 2-D509 EI-304657 2-IC704 EI-354232 3-IC11

EC-357035 2-C105 ED-344280 2-D708 EI-304657 2-IC304 EI-354283 2-IC28EC-357035 2-C205 ED-344280 2-D208 EI-304657 2-IC504 EI-355560 3-IC30EC-357035 2-C805 ED-344280 2-D209 EI-304657 2-IC303 EI-355575 3-IC16

EC-358450 14-C3 ED-344280 2-D608 EI-304657 2-IC104 EI-355578 3-IC7

EC-358450 14-C2 ED-344280 2-D809 EI-304657 2-IC503 EI-355665 10-IC1

ED-301911 2-D301 ED-344280 2-D808 EI-306727 2-IC305 EI-355666 10-IC3

ED-301911 2-D605 ED-344280 2-D508 EI-306727 2-IC705 EI-355771 6-IC3ED-301911 2-D801 ED-344280 2-D309 EI-306727 2-IC505 EI-355771 6-IC2

ED-301911 2-D403 ED-344280 2-D308 EI-306727 2-IC105 EI-356299 10-IC4

ED-301911 2-D406 ED-344280 2-D609 EI-307644 9-IC1 EI-357060 3-IC1

ED-301911 2-D407 ED-344280 2-D109 EI-3 10043 3-IC18 EI-359630 2-IC806BED-301911 2-D804 ED-344280 2-D709 EI-3 10043 3-IC19 EI-359630 2-IC506BED-301911 2-D807 ED-344280 2-D108 EI-3 10045 3-IC32 EI-359630 2-IC706B

ED-301911 2-D802 ED-3541 14 6-D13 EI-324255 2-IC9 EI-359630 2-IC306BED-301911 2-D803 ED-3 541 14 6-D8 EI-324255 2-IC20 EI-359630 2-IC406BED-301911 2-D604 ED-354114 6-D6 EI-324255 2-IC11 EI-359630 2-IC606BED-301911 2-D507 ED-354114 6-D7 EI-324255 2-IC8 EI-359630 2-IC106BED-301911 2-D602 ED-354114 6-D4 EI-324255 2-IC10 EI-359630 2-IC206BED-301911 2-D704 ED-354114 6-D12 EI-324255 2-IC19 EI-359631 3-IC4BED-301911 2-D702 ED-354114 6-D11 EI-324255 2-IC14 EJ-301513 14-J901x

ED-301911 2-D606 ED-354114 6-D10 EI-324255 2-IC13 EJ-349202 3-1

ED-301911 2-D204 ED-354114 6-D5 EI-324255 2-IC12 EJ-3 53031 9-J2

ED-301911 2-D103 ED-354114 6-D14 EI-324255 2-IC18 EJ-354235 14-J903

ED-301911 2-D102 ED-354114 6-D9 EI-324255 2-IC15 EJ-354235 14-J904

ED-301911 2-D207 ED-3 5703 6 10-D1 EI-324255 2-IC17 EJ-354235 14-J902

ED-301911 2-D506 ED-357037 10-D2 EI-324255 2-IC16 EJ-3 57 148 14-16

ED-301911 2-D205 ED-357038 10-D6 EI-324255 2-IC23 EJ-357159 9-J4

ED-301911 2-D206 EF-258344 14-F4C EI-324255 2-IC22 EJ-357159 9-J3

ED-301911 2-D806 EF-258344 14-F5C EI-324255 2-IC21 EJ-357159 9-J1

ED-301911 2-D501 EF-306949 14-F6A EI-324255 2-IC27 EJ-357159 9-J6

ED-301911 2-D302 EF-306956 14-F1B EI-324255 2-IC26 EJ-357159 9-J5

ED-301911 2-D607 EF-308847 14-F5B EI-324255 2-IC25 EJ-358467 2-S2ED-301911 2-D306 EF-308847 14-F4B EI-324255 2-IC24 EJ-3 58467 2-S3

ED-301911 2-D305 EF-309392 14-F6B EI-330391 3-IC14 EJ-358467 2-S4ED-301911 2-D707 EF-3 11839 14-F4A EI-330391 3-IC15 EJ-358467 2-S1

ED-301911 2-D303 EF-3 11839 14-F5A EI-330391 3-IC13 EM-354097 4-IN1ED-301911 2-D304 EF-323080 14-F3B EI-336995 10-IC2 EM-354097 4-IN2ED-301911 2-D504 EF-326639 14-F1A EI-353315 6-IC1 EM-354097 5-IN3ED-301911 2-D307 EF-326639 14-F3A EI-3 54098 4-IC1 EM-354097 5-IN2ED-301911 2-D503 EF-602550 14-F6C EI-3 54098 5-IC1 EM-354097 5 -INIED-301911 2-D505 EF-602550 14-F1C EI-3 54099 4-IC3 EM-354112 6-D1ED-301911 2-D401 EF-602550 14-F2 EI-3 54099 4-IC2 EM-354113 6-D2ED-301911 2-D402 EF-691007 14-F3C EI-354099 5-IC4 EM-354113 6-D3

PARTS LIST AX80

28

INDEX

PART NO. REF. NO.

EO-3 18635 9-L1

EO-318635 9-L2EO-354224 11-FL1EQ-348929 12-L1

ER-302241 10-R3ER-306805 9-R7ER-306805 9-R8ER-320528 2-FR1ER-337338 2-R606bK-j.37338 2-R106

ER-337338 2-R306ER-337338 2-R506ER-337338 2-R706ER-337338 2-R406ER-337338 2-R806ER-337338 2-R206ER-338000 10-R1

ER-343989 2-R841ER-343989 2-R541ER-343989 2-R441

ER-343989 2-R341ER-343989 2-R741ER-343989 2-R141ER-343989 2-R241ER-343989 2-R641ER-353064 2-R328ER-353064 2-R828ER-353064 2-R428ER-353064 2-R728ER-353064 2-R128

ER-353064 2-R628ER-353064 2-R528ER-353064 2-R228ER-353582 2-R527ER-353582 2-R327ER-353582 2-R227ER-353582 2-R727ER-353582 2-R827ER-353582 2-R127ER-353582 2-R627

ER-353582 2-R427ER-355564 3-R25ES-349070 14-SX902xES-354115 6-SW10ES-354115 6-SW3ES-354115 6-SW2ES-354115 6-SW5ES-354115 6-SW7ES-354115 6-SW6ES-354 1 1

5

6-SW12

ES-354115 6-SW1

1

ES-354115 6-SW4ES-354115 6-SW1ES-354115 6-SW9ES-354115 6-SW8ES-354115 6-SW14ES-354115 6-SW13ES-354115 7-SW18ES-354115 7-SW4ES-354 1 1

5

7-SW19

ES-354115 7-SW17ES-354115 7-SW15ES-354115 7-SW12ES-354115 7-SW16ES-354115 7-SW3ES-354115 7-SW2ES-354115 7-SW13ES-354115 7-SW1ES-354115 7-SW6ES-354115 7-SW5


PART NO. REF. NO.


A

ES-355573 14-SW901BES-357045 14-SW903ET-308141 12-TR1ET-332778 2-TR601ET-332778 2-TR702ET-332778 2-TR501ET-332778 2-TR102ET-332778 2-TR602ET-332778 2-TR1fc 1 -332778 2- 1 R401

ET-332778 2-TR201ET-332778 2-TR701ET-332778 2-TR801ET-332778 2-TR402ET-332778 2-TR101ET-332778 2-TR301ET-332778 2-TR202ET-332778 2-TR802ET-332778 2-TR302b 1 -551 1 la 2 TR502

ET-332778 6-TR7ET-332778 6-TR4ET-332778 6-TR5ET-332778 6-TR6ET-332778 6-TR3ET-332778 6-TR1ET-332778 6-TR2ET-347026 10-TR1ET-354167 3-PH1ET-35706

1

3-PH2

ET-403413 3-TR1ET-491051 2-TR704ET-491051 2-TR403ET-491051 2-TR703ET-491051 2-TR304ET-491051 2-TR504ET-491051 2-TR603ET-491051 2-TR303ET-491051 2-TR103b I -49

1

Uj 1

n rn ->m1- 1 K2U3

ET-491051 2-TR204ET-491051 2-TR604ET-491051 2-TR104ET-491051 2-TR404ET-491051 2-TR503ET-491051 2-TR803ET-491051 2-TR804EV-307695 2-VR201EV-307695 2-VR401C V -j\J 1 0 /

J

2-VR501

EV-307695 2-VR601EV-307695 2-VR801EV-307695 2-VR301EV-307695 2-VR101EV-307695 2-VR701EV-336770 2-VR202EV-336770 2-VR102EV-336770 2-VR302EV-336770 2-VR502EV-336770 2-VR1

EV-336770 2-VR402EV-336770 2-VR802EV-336770 2-VR702EV-336770 2-VR602EV-354253 13-VR904EV-354254 13-VR907EV-354255 13-VR906EV-354255 13-VR905EV-354256 14-VR903EV-3 58043 14-VR901

PART NO. REF. NO.

EV-358043 14-VR902EW-306427 14-1

A

EW-3 15767 14-1C

EW-322400 14-1DEW-322401 14-1EEW-358858 14-1B

EZ-200473 10-1

EZ-302906 14-2B

EZ-354169 3-BT1EZ-631945 14-2A

MH-314988 14-15

MH-358770 14-18

MI-354552 13-3

MZ-358512 14-17

SA-3 11742 14-3

SE-354539 15-8

SE-357978 14-13

SK-B352952X4 13-6

SK-B352952X4 15-10

SK-B352952X5 15-9

SK-354540 15-11

SK-354544 14-14

SP-354533 15-3

SP-354533B 15-5

SP-354549B 15-12

SP-354550 13-2

SZ-354538 15-2

TC-690851 14-6

ZG-354553 13-4

ZS-3 10984 13-5

ZS-341960 14-5

ZS-342736 15-6

ZS-353260 14-4

ZS-354230 14-10

ZS-355569 14-7

ZS-41 1232 14-11

ZS-447761 15-4

ZW-357644 14-8

ZW-4 13267 14-12

ZW-535768 15-7

ZW-632226 10-2

MEMO


30

MEMO

SERVICE MANUAL AX80

31

MEMO

/

32

SERVICE MANUAL AX80

r

SCHEMATIC DIAGRAMAND PC BOARDS

TABLE OF CONTENTS

1. CPU BLOCK DIAGRAM 2

2. VOICE BLOCK DIAGRAM 3

3. CONNECTION DIAGRAM 4

4. OPERATION PC BOARD 5

5. POWER SUPPLY SCHEMATIC DIAGRAM 6

6. POWER SUPPLY PC BOARD 7

7. FLD (1) (2) SCHEMATIC DIAGRAM 8

8. FLD (1) (2) PC BOARD 9

9. OPERATION (1) SCHEMATIC DIAGRAM 10


11. CPU SCHEMATIC DIAGRAM 12

12. CPU PC BOARD 13

13. VOICE SCHEMATIC DIAGRAM 14

14. VOICE PC BOARD 15

0u92




LTD., Tokyo, Japan.

(

'

1

B G H K

MEMORY PROTECT SW

OFF « - ON VOICE PCB PI (SAMPLE HOLD)

6

JACK PCB P2

ADDRESS/CONTROL LINE

AX80 CPUBLOCK DIAGRAMNo.2-1 85032IA

O

6

8 8

J c

EL B D H K

2

B G H K

6

8

ICI7

MASTEROSC

6554800Hz

UJQ>

IC 101 NJM4558D,TRI0I IC 104 (1/4) TC40IIBP

2 °l £m -

i

GATE

JULtsjt

m

)— SAWTOOTH WAVE

GENERATOR

ICI03TC40IIBP

SLICE hm(7)_TL 0- WAVE

FORMING

tCTL(DC02 N )0 ©BUFFERl?

IC7(2/2)NJM4558D

TRI03V

CTL(DC0I KJO ©BUFFER

IC7(l/2)NJM4558D

CTL(DC0 2 _TL)

TRI04V

O SAWTOOTH WAVELEVEL

SAWTOOH WAVEGENERATOR

SLICE "Ht)

ICI02 NJM4558DTRI02

JL

CTL(DC0I JL)

ICI04(2/4)TC40IIBP.

<5>

*

-I5V — + I5VDCO-I

SAWTOOH GAIN AD J

IC9 to 12

S/H

(TP)

WAVEFORMING

ICI05(I/2)TC40I3BP

SUBOSC f5—6-1 s

CTL(SUB)

(777) :PIN I or 7

(|T5) :P|N 3 or 5

IC8 to 26TL082CP

ICI7( 1/2) ICI8(2/2

I | IC 3I |

IC 2I

INDIVIDUAL FOR EACH VOICE

ANALOG SWITCHES

IC2to6 TC405IBP

RESONANCEOSC ADJ

+ I5V WM 15V

ICI06 CEM3372

VCF

OTHERSEVENVOICES

VCA

ICI07NJM4558D

l4te(2)BUFFERllJ

IC27 TL082CPIC28 BA6II0TRI

ICI8( 1/2!

HPF

ICI7(2/2) IIC8(l/2)

7)

IC23 to 26

l,7>

P5

IOUT

ICI9 to 22

S/H

(T5)

A

IC4| IC 5

I IIC S

I

COMMON FOR ALL VOICES

VA A,B, C INH

INDIVIDUAL FOR EACH VOICE

+ I5V

DC0-2±SAWTOOH GAIN ADJ:"

ICI

SN74LSI38N

= SOUND PROCESS LINE ICI,

2

AX80 VOICEBLOCK DIAGRAM

no.2-2 850322A

EC B G H K

FLD(I) PCB LI003A5I2A

'(5>UDj

!<S>*—T<5>i

'<5>*-k5>!

!(»>r-H®!

\®*-\®\

<SH-p©i 5

J L

n

uj ro

o2

6

EPIP

I

CONTROL 1 |TUNE

pro

I

PITCH BEND|

BP

MODULATION|

MODULATION|

PITCH BEND|

8

urn£ J 7 7 7 7 7 7 7 ,d I 1*1

1

41

H l?l H l|l l?l 1?' I'pi l"l " 2| 1131 1141 I?'

CPU PCB L1003A5020

an xrr ZE

fflffflfflfffllflffflfflffflfflfff

HARD ON /OFF

SOFT ON/OFF

DCO-tlU ON/OFF

DCO-2N ON/OFF

DCO -2IU ON/OFF

SUBOSC ON/OFF

TAPE MEMO IN

TAPE MEMO OUT

PROTECT SW

53-|OUT PUTl

VOICE 1 DCO-

VOICE 2 GATE

VOICE 2 DCO -2

VOICE 3 DCO-

VOICE 3 DCO-2

VOICE 3 GATE

VOICE 4 DCO-I

VOICE 4 DCO-2

m o

VOICE 5 DCO-

VOICE 5 DCO-2

VOICE 5 GATE

VOICE 6 DCO-

VOICE 6 GATE

OICE 6 DCO-2

VOICE 7 DCO-

VOICE 7 DCO -2

VOICE 7 GATE

VOICE 8 DCO-1

VOICE 8 GATE

12 VOICE 8 DCO-2

HARD ON/OFF

SOFT ON/OFF

DCO- IN ON/OFF

DCO-1U ON/OFF

DCO-2N ON/OFF

DCO -2IU ON/OFF

SUB OSC ON /OFF

|PHONES ~|

PEDAL|

TAPE MEMORY}-

TAPE MEMO IN

TAPE MEMO OUT

JACK PCB L1003A512C

I

33

MUTING PCB LI003D5I50

7^33 I Y_

y 0

0

2£;

aw

$WI7jjp

^LT^ 1

1—Ks>H<S>l0 C?c

0^

OPERATION (2) PCB L1003A512B OPERATION(3) PCBL1003A513C

NOTEUNLESS OTHERWISE SPECIFIEDALL RESISTORS IN OHMS 1/4WO)ALL CAPACITORS IN «F 50WVO)POWER TRANSFORMER IS DIFFERENTACCORDING TO AREA

WARNING AlND-CATES SAFETY CRITICAL COMPONENTS FOR CONTINUED SAFETY

REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'SRECOMMENDED PARTS

AVERTISSEMENT AlL INDlQUE LES COMPOSANTS CRITIQUES DE SECURITEPOUR MAINTEMR LE DEGRE DE SECURITE DE L APPAREILNE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE FABRICANT

AX80CONNECTION DIAGRAM

No.e-i 850309A

4

EL B D G H K

CL0,

D

o o

P

1TO VR902

lOUTPUf]

MUTING PCBLI003D5I50

JTO JACK PCB PI , P3

WARNING:A INDICATES SAFETY CRITICAL COMPONENTS FOR CONTINUED SAFETY,REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'SRECOMMENDED PARTS

AVERTISSEMENT: AIL INDIQUE LES COMPOSANTS CRITIQUES DE SECURITE.POUR MAINTENIR LE DEGRE DE SECURITE DE L'APPAREIL,NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE FABRICANT

SW5

_.............

©

|3£]

SW\3

K) 0¥

g 4_

®

OPERATION (3) PCB LI003A5I3C JACK PCB LI003A5I2C

5

B H K

AX80

6

8

NOTEUNLESS OTHERWISE SPECIFIED

ALL CAPACITORS IN uf 50WV(J)

WARNING:A INDICATES SAFETY CRITICAL COMPONENTS FOR CONTINUED SAFETY,

REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'SRECOMMENDED PARTS

AVERTISSEMENT: AlL INDIQUE LES COMPOSANTS CRITIQUES DE SECURITE.

POUR MAINTENIR LE DEGRE DE SECURITE DE L'APPAREIL,

NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE FABRICANT

POWER SUPPLY PCB LI003C5090

VOLTAGE MEASURMENT CONDITION WAS IN THEPI PROGRAM WITH NO KEY FUNCTIONS

+ 15V

+ 5V 2

6N0 3

- 5V 4

- 15V 5

+ 15V 1

6ND 2

-I5V 3

+ 5V 1

GND 2

TO VOICE PCBP4

TO MUTEING PCB

TO CPU PCBPI5

TO OPERATION(I) PCB PI

TO CPU PCBPI6

AX80POWER SUPPLYSCHEMATIC DIAGRAM

no. 6-2 8503IOA

B D G H

6

POWER SUPPLY PCB LI003C5090WARNING:A INDICATES SAFETY CRITICAL COMPONENTS FOR CONTINUED SAFETY,

REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'S DRECOMMENDED PARTS J*

AVERTISSEMENT: AlL INDIQUE LES COMPOSANTS CRITIQUES DE SECURITE. P® @]PNP TRANSISTER

POUR MAINTENIR LE DEGRE DE SECURITE DE L'APPAREIL,NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE FABRICANT

7

B G H K

IC3 UPA80C

v®®

y®/®v®

C3 0.01 (Z)

II

__

1j_

0

OF

.-26.8V,;J) a2®

^-26.8vP^03®^-28.0Vk

J>a4®

^05®^- 23.2 V,;

3 06®^^2) or®^^08® R^^09®^^0010®^^01.®^^0,2®

)b ®

IN -25-263ZK

(AC) i.

31.6V I [—O @H§h

V-28.0V/J

^ al ®c 26,8p

^ a2®^-26.8V^

^ 03®C28.0V^

^ a4®

^> a5®^-23.2V^

^ 06®C

2) 07®^—<l5)

a8®E^-23.4V^

) a9®

^<7)a,0®^%o.l®

) 012®

)b ®

Voltages at IC106 to 806 were with B-type ICs, voltages

with C-type ICs will be almost the same.

Voltages at the R0M(IC4 in the CPU PCB) were with an I-version,

voltages with a K-version ROM will be almost the same.

The unit was in the P1 program mode with no key function

(No function change after the power SW was "ON"),

©with voltage indications were for DC voltages with pulses,

voltages may vary by the wave forms.

Voltage indications related with parameter displays No. 26, 28

and 32 of the FLD IN-2 in FLD( 2) PCB may vary with a K-versionROM.

©©©©©© -38.4VG 7 G6 G 5 G4 G 3 G 2

6 8 kJU

© ©©©©©©©©©©©©©©©

IC I HD74LSI54

Rl 10k—Wv

—

s—r<8H—kl)i

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^

^—k£>]

—

^—\®\—\®-s—rOH—KS>>— —k§>

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—

m—k§>

wDj—1®.

<dh—ksf<DM<«>r<r>i—KiH-

i i

,

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J L

©©©©@©©©@©©©@©©©

IC I HD74LSI54

<f2>J

Rl 10k

W,—

~1T-

n^r J-

6

FLD (I) PCB LI003A5I2A FLD (2) PCB LI003A5I3A

B (POWER SUPPLY)LINE

8

NOTEUNLESS OTHERWISE SPECIFIEDALL RESISTORS IN OHMS 1/4W(J)

ALL CAPACITORS IN uF 50WV(J)POWER TRANSFORMER IS DIFFERENTACCORDING TO AREA

AX 80FLD (I) (2)

SCHEMATIC DIAGRAMno.6-3 85031 IA„

B D H K

o

0 ro

- O

5«

***««©- %*\J%J% * £ % Jpf 1

% © o

* ••:. t»

i> 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 35 36 3 4 5 6 7 8 9 10 i I 12 13 14 15 16 17 18 19 20 21 22 23 24

__________

25 26 27 23 29 30 31 32 33o • • i o s> o a o

IN 2

9 10 II 12 13 14 15 16)

iC2 >i P A 80 C (3765432 ll

.

.© ® O # © # •« ©I

TTT:

i

i

ill

I.

r

13 14 15 16 17 18 19 20 21 22 23 24

1C I H074LS154 Q

12 i! 10 9 8 7 6 5 4 3 2 1

# s c o # o # # » © «

T)Om

73>z_00

o

FLD (2) PCB LI003A5I3A

1

I i

.-._

si

^

8 1 ©j

o

IC6 yPASOC

TO CPU PCB P9

© ©©•©©*©©<* -'' ©©•«»<>©©©©.30-0 3 27 : 6 :5 24 : 3 22 19 (7 (4 ,2

oO© 9 * « 9 6 © © « O O '© C- g O O © O©©.© ©««©..© © «

20 23 29 £7 ES 25 24 £3 22 19 17 14 i2 I I SO 9 6 ? 6 5 3

O O- .. . .. .

.

jii 2 3456 7 3

St 5|jjj pPASOC16 15 14 13 12 SI (0

o

TO CPU PCB P8

lB: .

2:

3 S | 5 6 7 8 9 10 l{ 12 13

.. jI 2 3 4 :.) 6 7

' I J 1C3 JJ

o *I c - -

1..*1 1 iC2 uPASOC" I fj 15 14 13 12 n to I

f^ 1' o o a g >a a

•©©'©'©©©©©©©oo'eoôo&o©©©©©©©©©©20 29 20 27 26 23 24 23 22 i9 17 14 12 H SO 9 8 7 6 5 4 3 I

O

O

FLD(l) PCB LI003A5I2A

9

B G H K

a

b 2

c 3

C\J d 4

Q.e 5

CB f S

Q-g 7

CPl dp 3

TO BO 9

6

8

B ( POWER SUPPLY ) LINE

NOTEUNLESS OTHERWISE SPECIFIEDALL RESISTORS IN OHMS 1/4W(J)ALL CAPACITORS IN uF 50WV(J)POWER TRANSFORMER IS DIFFERENTACCORDING TO AREA

2SA608K-NP

Voltages at IC106 to 806 were with B-type IC's voltageswith C-type IC's will be almost the same.Voltages at the ROM(IC4 in the cpu-pcb) were with an

I-version, voltages with a K-varsion ROM will be almost thesame.

The unit was in the PI program mode with no key function(Nofunction change after the power SW was "ON").

(D with voltage indications were for DC voltages withpulses, voltage may vary by the wave forms.Voltage indication related with FLD D3 may vary with a

K-varsion ROM.

AX 80OPERATION ( I

)

SCHEMATIC DIAGRAMno. 6-4 8503I2A

B D G H

3C

LOCATION OF COMPONENTS

1*| > •|

= TRANSISTOR

TRI = 2SC536NP

E C 8

2SC536NP

THIS UNIT EMPLOYS A LITHIOM BATTEMFIL MEMORY BACK UP- DO NOT OVERHEAT IT WITH A SOLDERING IROS TOAVOID EMPLOSION

[_VR90I[j[_VR903

j|_V_R906 Jl_VR907j |_VR905j

j

VR904_ _ _ J

|TUNE|ICONTROLl

1MODULATION] lPITCH_BANPl

2SA608K 2SK30AAX 80 VOICESCHEMATIC DIAGRAM

no.6-6 8503 14A

OPERATION (I) PCB LI003A5I3B

PNP TRANSISTER

TRI to 7 2SA608K-NP E C B

2SA608K-ND

I

VOICE 8

X PARTS NO,8xx= INDICATED V0ICE8

VOICE 7

X PARTS N0.7xx= INDICATED V0ICE7

VOICE 6

X PARTS N0.6xx

= INDICATED V0ICE6

VOICE 5

XPARTS N0.5xx= INDICATED VOICE5

X PARTS N0.4xx

= INDICATED V0ICE4

VOICE 3

X PARTS N0.3xx= INDICATED VOICE3

X PARTS N0.2xx= INDICATED V0ICE2

VOICE I

XPARTS NO.Ixx= INDICATED VOICEI TO CPU PCB PI3

o AKAI CMK-99HB

L1003A5010 •

TO CPU PCB PI4

II 10 9 6 7 6 5 4 3 2

7 6 5 4 3 2

V

fit ifi nTfcftM I If • •

R9C2 •VvA-« R3:: «-yV-»DSOi • ><-• RSOi

C307 m-i \-m 0303 •->-•R303 *~V\H> R91C

DS02 •-{-*• QpJ Q.O

- «-l|-»C3C5

(C302

C708w C6 °

•-i 1-«C706 m-\ h» #H |-«C6C6

#-H-*07oi •^-•R70 '»-*~« oec; »-;^s^h«C707 #-^D7 °3

»-J h» C607 c

D70Crp 1 Qi •"f-* 0602 R610

^03WL«P C705 [• !§ P 'p Si • S

704tHh«|«|3 •-! h# g »-i (-•W g •-) ce

R70i •V\/U» |«J° •~7V

L« ° •VVL» [•J2 R606

IC701 • IC702 • R7°6 R6 <>4 [C60I IC602

C503 C<.06 U08

^(^cso; ^ûo;

0502 X^?P- Di02 Ril a pR509 p cso5 [fjS •VVL« P^pp-a^fiC504 ^^[*!3^H»£»^h» ^ H»c-„.

•-vV-« R3ii»-/\M

^Hfd3^3*H^»;0>^ D

«-vV~« R2" •VvL»R20i V/-«D203

•-W-»R30r»VyLV3 J

~VvVM» R2I0 «^V-«

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„e*«HI-*«|3 •-! h» § •-! h» [•£ Whtc:

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•-/[^-•R632

R633a R7I3 WV-

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R8a7

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R837

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l^hl^" ,6

R738 <HV-«g

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IC806

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- •^•« R521* •WL«E *Ri2l

®"-.loR43b R435®3 to

RA3G.

•

R323 D3O7 0_^)_0 R223 ^

R3-.8 R332^WL« R2I8 •"VV*-* R 232

•~A*-«R233

^R530

•VvÎ

- AA-^#R32. * *W^g *R22I•W-» •t/V

l»

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•-VV-»RII9 f^#R4 »-vV-»R38«HvV-#R120« *^N-mR3 R33

5 •-A*"* « »-vVu«Rl2A •-v

Av*-«R5 »tV-*r37

:f.Iff

# gw

R321

R33° R33S f

R336

# Rue V\/L* R i32

•V/-* 1 R'33

3 R'36

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C5,6R538 »WV^

# R537 a,

C4U C3i8

•Hh* R3t*C4,6

Ri33»^V*-«i

Ri 37"

R3^7

• R3-I VR70

• R328 ;C707

»-| |-« o R6« *-\ ^C62(

ef^39*^ «H hf tJSIÂ* ^ h*C6|.

LZ__T^y\_5j Q o| »V\A^R623 ICS07

T T "749 D709R?28

0609

~ 00 c?22 C622 3 S

•-I h« R24i

•P 6R338 •^•5

# R337 V/-*CT1

R247

R5i3 C520 — w

vo^.RS^*"^ ^H*5!»!"^ «-l[-»C t 20 ( ) ^W^» »H h» P-^ 243 *H h«C220 A^j •WL»r^-« S •-vV-«r»-v\

AH» R"> vr 36?

Oj*^r* vR^T1# ° 0|»W-« R ^23 IC30

C2u ens

•^h» ^7ri* 4

'C2,6 R23eÂ-»2

R237 •n/V-# ;

R3A3 C320 TP

•n/V-* R l38

•-vAA-«Rl37

C509

->H» T'llfs^TT-l

#n/VC# C522 C422

R527 ^ Ri27

J^^v'r^Ô 0|^» r228

RU3 %-4 (-•CI20 UooNy^T-

i"""^

•VvA-« «H h» cii9 »-m 5 «•

R249»» XonaT T R34"

9 0309"

tlllf

g sa>.^§ 4 4

_ 3 C322 C222

R327 T # R227

JJ209 .

|»R139 *iv-» r»

15DI09"

T"fD108*^ rmr .r.i

io io i„

ADJUSTMENT PARTSVR101 VOICE1 RESONANCEVR201 VOICE2 RESONANCEVR30 1 VOICE3 RESONANCEVR40 1 VOICE4 RESONANCEVR50 1 VOICE5 RESONANCEVR601 VOICE6 RESONANCEVR701 VOICE7 RESONANCEVR801 VOICE8 RESONANCE

VR10 2 VOICE 1

VR20 2 VOICE 2

VR302 VOICE3VR40 2 VOICE4VR50 2 VOICE5VR60 2 VOICE6VR70 2 VOICE7VR80 2 VOICE8

VR1 OFF-SET

[ WAVE[ wave :

[ wave :

: WAVEi wave :

: wave :

: wave:

: wave :

TR1 ,101 , 102,201 ,202,301 ,302, 401 ,402501 ,502,601 ,60 2,701 ,702,801 ,802 2SA608K(F)

TR1 03, 104,203,20 4,303,30 4,40 3,404503, 504,60 3,60 4,703,704,803,804 2SK30A(Y) ECB

2SA608K

SG D

2SK30A

O » »I= PNP TRANSISTOR

I* I* •I= NPN TRANSISTOR

VOICE PCB LI003A50I0

WARNING: ABDICATES SAFETY CRITICAL COMPONENTS FOR CONTINUED SAFETY.REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'SRECOMMENDED PARTS

AVERTISSEMENT: All INDIQUE LES COMPOSANTS CRITIQUES DE SECURITE.POUR MAINTENIR LE DEGRE DE SECURITE DE L'APPAREIL,NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE FABRICANT

//PD781 1G-144 (CPU PCB-IC1) //PD781G-1 19 (CPU PCB-IC2)

//PD781G-144

KEY BOARDA-SW INPUT

KEY BOARDB-SW INPUT

KEY SCANOUTPUT

DATAACKNOWLEDGE"

NOT USE

+ 5V -

POWER ON RESET -

OSCILLATOR |~~

(l2MHz)|_.

(DIGITAL)GND-

(T)PAo

® PA|

VpPA2

®PA3©PA4

<6)PA 5

•@PA6

<8)PA7

©PBq-<K>)PB

(

OnPBg

•@PB 3

®PB4

@PB5•® PB6

•®PB 7

-®pc 0

-(l8) PCi

-@PC 2

^PC3

-(2l)PC4

^3)PC6

g)PC7

Dnm?

)lNTI

)MODE I

}) RESET

>) MODE 2

)X2

<3l) X I

)VSS

Vcc

pdHPD6 (6I>

PD5 {

P04 (

P03 (

PD2 (

PD, I

PD0 (i

PF7 ^

PF6 i

PF5 (

PF4 (5J>

?MPF2 ^9>

PP|

PF0 ^

ALE (

WR

RD

AVCC $43j

VA REF^

AN 7 (4I>

ANg (

AN5 ^9)-

AN4

AN3 £

AN2 $6>

AN, $5>

AN0 (

AVSS6

+ 5V<DIGITAL)

+5V { FOR RAM

)

DATA STROBE7 BIT PARALEL

INPUTSKEY ON/OFF DATA

AND DYNAMICS DATA

7 BIT PARA OUrPUTKEY ON/OFF DATAAND DYNAMICS DATA

+5VUNALOG)

+ 5VU-Q CONVERTERREF-V)

OCO-I

DCO-2

DATA STROBE •

p 4 FEET ON -

8 FEET ON-

16 FEET ON-

- 32 FEET ON-

- 4 FEET ON -

8 FEET ON-

16 FEET ON-

^ 32 FEET ON -

MIDI OUTPUT *

MIDI INPUT -

TAPE INPUT -

DATA ACKNOWLEDGE -

NEXT INPUT-

SUSTAIN INPUT -

TAPE OUTPUT-

INTERRUPT INPUT-(FROM JJPD8279)

POWER ON RESET -

DATA /ADDRESS

MEMORY ADDRESS

• GND (ANALOG)

OSCILLATORf"(I2MHz)L_

(DIGITAL) GND -

(l)PAo VCC §4) + 5V ( DIGITAL)

©PAi V00@ + 5V( FOR RAM)

<3)PA2 P07 K2}w* DO/AO —

!

•0PA 3 PD6 fej)<-a*DI/AI

(5)PA4 POg D2/A2

<6) PA5 P04 (@K^" D3/A3

{7) PAg PD3 D4/A4

<8) PA7 PD2@«* D5/A6

<9}PB0 PDl «6)«- 06 /A6

-@PB| PD0 @Hw>D7/A7

<n)PB 2 PF7@—3S-AI5-

<J2)PB 3 PF6 AI4

•@PB4 PF5@—»»AI3

<|4) PBg PF4 m) AI2

Kf5)PB6 PF3 ^—3»AII

•@PB 7 PF2 ©—s> A!0

<H) PC 0 PFj @—ss» A9

<|8)PC| PF0@—**A8 -1

<I9)PC 2 ALE©*s MEMORY ADDRESS ENABLE

}PC 3 WR @>* MEMORY WRITE STROBE

K2l)PC4 RD ©•«— MEMOR READ STROBE

|2)PC5 AVCC&3) +5V (ANALOG)

23)PC 6 VA REF@ +5V(A-D CONVERTER REF-V)

(24) PC 7 AN 7 (4l)< PARAMETER —

|

)NMI ANg®« TUNE

INT I ANg (39H*— MODULATION

) MODE I AN4 B6K— VCF

fee) RESET AN3@<— DCO

|3lM0DE2 AN2 &6>< BEND WIDTH

1X2 AN| BEND DOWN

,21 ' AN0 ^>* BEND UP —1

)Vt3 AV«$(B 6N0 (ANALOG)

ANALOGINPUTS

SECTION 4

SERVICE BULLETIN

O This section describes the information on techniques revisions and troubleshooting for ser-

vicing and adjusting AX80.O To maintain the performance of AX80, see also AX80 Service Manual for servicing and

adjustment.

O Further technical information will be issued as any arises.

Keep such information carefully under the name of this file.

0u92

This Manual is FOR INTERNAL USE ONLY and must not be madeavailable to unauthorized personal. No part of this manual may be re-


LTD., Tokyo, Japan.

MODEL: AX80

INDEX

Bulletin No. Subject No. Description

AX80/1 001 Change of Voice Control IC

002 IC TC4013BP name change

MODEL: AX80 No. AX80/1 DATE: April 1985

001 Subject: To improve performance

To improve sound quality, Voice Control IC (IC106 - 806 in Voice P.C. Board)CEM3372B has been changed to CEM3372C. The program of ROM IC (IC4 in CPUP.C. Board) UPD2764D-I has also been changed to uPD2764d-K.

IC106 - 806 Part No. IC4 Part No.

Old CEM3372B EI-354184 UPD2764D-I EI-354145New CEM3372C EI-359630 UPD2764D-K EI-359631

When one of Voice Control IC is changed from Old type to New type and viseversa, it is necessary to replace all Voice Control ICs and ROM IC at thesame time.

Changed from : January 1985Interchangeability : Not interchangeable

The following shows how to identify old and new ICs.

8-TYPE-

INOCATINGLOT NUM8ERS

INDICATING TYPES

C -TYPE

1 CEM 3372 1 CEM 3372 1 CEM 3372

T 8425 31608-01 T 8427 31608-01 X 3060C-011 -x- k

1

<*


- 1 -

MODEL: AX 80

002 Subject: Parts information

No. AX80/1 DATE: April 1985

Change of Part Name.Because of the new type IC TC4013BP production, the IC manufacture haschanged the name of old type IC TC4013BP to TC4Q13BAP. Old type ICTC4013BP and IC TC4013BAP are interchangeable.

Since old type TC4013BP and new type TC4013BP function differently, ICitself can not be substituted. However, this change should not affect theoperation of AX80 even when a new TC4013BP is installed.

The new type IC can be identified by its Lot Number,added to its Lot Number.

The letter "B" will be

Old type TC4013BPNew type TC4013BP

8501H8522HB

The chart below shows the difference of their function.

OLDTRUTH TABLETC4013BP

INPUTS OUTPUTS

CL PR D CPA Qn+1 Qn+1

L H •3 m H L

H L m L HH H •it HL L L _r L HL L H _r H L

L L i_ Qn* Qn*

: Don't Care

A : Level Change

• : No Change

NEWTRUTH TABLETC4013BP

INPUTS OUTPUTS

* CL PR D Qa+1 Qn+l

L H ;* H L

H L & HH H HL L L J~ L H

L L H _r H L

L L m "L Qn* Qn*

)x : Doi/t Care

A • Level Change

• : No Change

c

- 2 -

MODEL: AX80

Bulletin No.

AX80/1

AX80/2

Subject No,

001

002

003

004

005

006

007

008

009

AX80/3 010

Oil

INDEX

Description

Change of Voice Control IC

IC TC4013BP name, change

For easier Voice P.c. B. adjustment

Pitch bend, modulation VR change

For easier Cut-off frequency adjustment

Sub OSC oscillation countermeasure

Osc X'tal costdown

IC change information

Parameter change in Edit mode

countermeasure

Phone Amp Oscillation countermeasure

Change of Voice' Control IC and

operation ROM IC.

o

No. AX-80/2 DATE: May 1985

MODEL: AX- 80

009 Subject: Trouble countermeasure •

<= m Prev. New DescriptionRef. No. Prev.

82 FS 1/4W ER-3224213-R4 1DU

Changed from : F«btumly 1985

Service Ref. No. : SX-5066/K-706-85

• No. AX80/3 DATE: August 1985

MODEL : AX80

010 Subject: Trouble countermeasure

Oscillation in Phone Amp in Jack P.C.* Board.

Symptom : °"oacitor has been added in Phone Amp.

Countermeasure : A capacitor

DescriptionRef. No.

C CE 220J 50DC9-C7Z, 8Z

Changed from : June 1985

Service Ref. No. : CNA0552

MODEL

:

AX80 No. AX80/3 DATE: August 1985

Oil Subject: Parts information

Because of the discontinuation of IC manufacture, IC CEM3372C in Voice P.C.Board has been changed to IC CEM3372D.Accordingly, the program version of Operation ROM IC UPD2764D in CPU P.C.Board has also been changed from K version to L version.

Ref. No. Part No. Description

(PREV.) 2-IC106B-806B EI-359630 IC CEM3372C(NEW) 2-IC106Z-806Z EI-363530 IC JCEM3372D(PREV.) 3-IC4B EI-359631 IC UPD2764D ( K TYPE

)

(NEW) 3-IC4Z EI-363531 IC UPD2764D (L TYPE)

NOTE : IC CEM3372D has to be paired with IC UPD2764D (L TYPE) for propoperaion.A/B Bank Sound Data are interchangeable.

Changed from : July 1985

Service Ref. No. : CNL0053

a

MODEL: AX-80

4

INDEX

Bulletin No,

AX-80/1

AX-80/2

Subject No,

001

Description

Change of Voice Control IC

002 IC TC4013BP name change

003 For easier Voice P.C. B. adjustment

004 Pitch bend f modulation VR change •

005 For easier Cut-off frequency adjustment

006 Sub OSC oscillation countermeasure

007 Osc X'tal costdown

008 IC change information

009 Parameter change in Edit mode

countermeasure

MODEL: AX- 80 No* AX-80/1 DATE: April 1985


To improve sound quality, Voice Control IC (IC106 - 806 in Voice P.C Board]" CEM3372B has been changed to CEM3372C* The program of ROM IC (IC4 in CPU

P.C. Board) UPD2764D-I has also been changed to UPD2764D-K,

IC106 - 806 Part No. IC4 Part No,

Old CEM3372B EI-354184 UPD2764D-I EI-354145

New ... , CEM3372C EI-359630 UPD2764D-K EI-359631

?.

When one of Voice Control IC is changed from Old type to New type and vise

versa, it is necessary to replace all Voice Control ICs and ROM IC at the

same time.4

Changed from : January 1985

Interchangeability : Not interchangeable

The following shows how to identify old and new ICs. -— —

•S -TYPE

-

cm 3372

8425 31608-0!

CEM 3372

8427 31608-01

C-TYPE

CEM 3372

3060C-0I_J

INOCATINGLOT NUM8ERS

INDICATING TYPES

AX-SCK-4


MODEL: AX-80


No. AX-80/ 1 DATE: April 1985

Change of Part Name.Because of the new type IC TC4Q13BP production, the IC manufacture haschanged the name of old type IC TC4013BP to TC4Q13BAP. Old type ICTC4Q13BP and IC TC4013BAP are interchangeable.

Since old type TC4013BP and new type TC4013BP function differently, ICitself can not be substituted. However, this change should not affect theoperation of AX-80 even when a new TC4Q13BP is installed.

The new type IC can be identified by its Lot Number. The letter "b" will beadded to its Lot Number.

Old type TC4013BPNew type TC4013BP

8501H

8522HB

The chart below shows the difference of their function.

TRUTH TABLETC4013BP

, NEWTRUTH TABLETC4013BP

INPUTS OUTPUTS

CL PR D CPA Qn+1 Qn+1

L H ;I5 •5 H L

H L ;S L HH H ft hsr HL L L J" L HL L H _r H L

L L ?« Qn* Qn

« : Don't Care

A : Level Change

• : No Change

INPUTS OUTPUTS* CL PR D CPA Qn+1 Qn+1

L H ;% 8 H L

H L L H

, H H H

L L L L H

L. H S H L

L L ;r ~L Qn* Qn'

: Don't Care

A • Level Change

• : No Change

MODEL: AX-80



For the ease of the adjustment on Voice P.C. Board, the following parts havebeen changed.Ref. No. Previous New

2-R105-805

2-R124-8242-R139-8392-R144-844

10K

10K300K (F)

30K (F)

100K CB.

100K CB.

750K CB.

33K CB.

Changed from : Nov. 1984Service ref. no. : BB-5406X, BB-5621X

MODEL: AX-80


No. AX-80/2 DATE : May 1985

The following parts have been .changed for the standardization of parts.VR905 PITCH BEND, VR906 MODULATION.


13-VR9Q5, 906 Prev. EV-354255 VR ROTARY 16L10XOV B103New EV-358043 VR ROTARY 16L10X0X B103

Changed from : Nov. 1984Service ref. no. : BB-5579X

MODEL: AX-80



For the ease of Cut-off Frequency adjustment, R139-839 on Voice P.C. Boardhave been changed from 750K to 680K.

Ref. No.

2-R139-839

Previous

75 OK

New

680K

Changed from : Dec. 1984Service ref. no. : BB-5945X

MODEL: AX- 80



To prevent the oscillation of Sub OSC, C110-810 on Voice P.C. Board havebeen changed form 33pF to 56pF.

Ref. No.

2-C110-810

Part No.

EC-200488

Description

C CE V F05 CH 560J 50DC

Changed from : Jan. 1985Service ref. no. : BB-6124X

MODEL: AX-80



The Oscillation X'tal X2 on CPU P.C. Board has been changed for the costdownpurpose*

Ref. No.

3-X2

Part No.

Prev. EI-354168EI-358944

New EI-358966

Description

OSC X'TAL HC-16 6.5548MHzOSC X'TAL NR-18 6.5548MHzOSC X'TAL NR-18 6.5536MHz

Changed from : Feb. 1985Service ref. no. : BB-5895Z, BB-5993Z

MODEL: AX-80



IC NJM4558D used on Voice P.C. Board has been changed to IC TL4558P, for thestandardization of parts.


2-IC72-IC101-2-IC102-

801802

Prev. EI- 213390 IC NJM4558D

2-IC1072-IC3072-IC5072-IC707

New EI- 338502 IC TL4558P"

IC Socket for IC TL4558P has been added for IC^101-801Ref. No. Part No. Description

2-S13-20 EJ-359147 Socket IC DILB 8P-8J

Changed from : Feb. 1985Interchangeability : IC NJM4558D and IC TL4558P should not be used

combined, since it might cause the imbalance of theoutput between Voices.

Service ref. no. : BB-6356X, BB-6207X

MODEL: AX-80 No. AX-80/2 DATE: May 1985


To eliminate the problem of changing parameter in Edit mode by itself,

especially on unit with IC UPD7811G-144 as IC2 on CPU P.C. Board, R4 on CPU

P.C. Board has been changed from 150 to 82 FS.

Ref. No. Prev. New Description

3-R4 150 82 FS 1/4W ER-322421

Changed from : Februaly 1985

Service Ref. No. : SX-5066/K-706-85

AKAI ELECTRIC CO., LTD.12-14, 2-Chome, Higashi- Kojiya, Ohta-Ku, Tokyo, Japan

TEL Tokyo (742) 51 1 1 CABLE HIFIAKAI TOKYO TELEX J26261

Printed No. 850422-G1-1000 Printed Date:JUNE 18,1985Printed in Japan

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