PROGRAMMABLE POLYPHONIC SYNTHESIZER

MODEL AXOO

SECTION 1 SERVICE MANUAL

SECTION 2 PARTS LIST

SECTION 3 SCHEMATIC DIAGRAM

SECTION 4 SERVICE BULLETIN

ABBREVIATIONS FOR THE SERVICE MANUAL

SAFETY INSTRUCTION

SAFETY CHECK AFTER SERVICING

Confirm the specified insulation resistance between power cord plug prongs and externally exposed parts of the set is greater than 10 Mohms, but for equipment with external antenna terminals (tuner, receiver, etc.) and is intended for

[C] or [a]i 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.

2.

4.

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

Replace only with parts number specified.

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.

Use specified internal wiring. Note especially:

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

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)

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.

10. The LITHIUM BATTERY employed for memory back up has an explosive probability when the battery itself is excessive heated.

Normally, LITHIUM BATTERY is not necessary to replace, because the life of LITHIUM BATTERY is about 10 years.

IN CASE OF REPLACING: RESOLDER AND SOLDER AS RECOMMENDED WAY.

Recommended way

VOLTAGE CONVERSION

Models for Canada, USA and Japan are not equipped with this facility. Each machine is preset at the factory according to its destination, but some machines can be set to 220V or 240V as required.

If the machine's Voltage can be converted:

Before connecting the power cord, set the VOLTAGE SELECTOR on the bottom panel for the correct Voltage is in dicated.

VOLTAGE SELECTOR

-SERVICE MANUAL-

SECTION 1

SERVICE MANUAL

TABLE OF CONTENTS

I. SPECIFICATIONS

II. DISMANTLING OF UNIT

2. HOW TO DISMANTLE THE KEYBOARD

3. HOW TO DISMANTLE THE BEND PANEL BLOCK

III. CONTROLS

IV. THE KEYBOARD REACTION-SHIP TO EQUALLY TEMPERED SCALE

FREQUENCIES AND MUSICAL-NOTATION

V. PRINCIPAL PARTS LOCATION

VI. ADJUSTMENT

1. BALANCE OF ±6V ON THE POWER SUPPLY PC BOARD

2. OFF-SET OF FINAL VCA ON THE VOICE PC BOARD

3. BALANCE OF BBD OUTPUT ON THE CHORUS PC BOARD

4. OFF-SET OF IC6 (LF 356) ON THE CPU PC BOARD

VII. PC BOARD TITLES AND IDENTIFICATION NUMBERS

VIII. MIDI IMPLEMENTATION CHART

7

7

8

8

8

9

9

10

10

4

5

5

5

5

6

This Mannal is FOR INTERNAL USE ONLY and most 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.

-SERVICE MANUAL-

I. SPECIFICATIONS

MODEL AX60

-SERVICE MANUAL-

1) Remove 6 screws on the Bottom plate, and disconnect the connectors PI and P2 on the CPU PC Board.

FOR THE KEYBOARD

SCREWS

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

II. DISMANTLING OF UNIT

In case of trouble, etc. necessitating dismantling, please dismantle in the order shown in the photographs.

Reassemble in reverse order.

1) Remove 8 screws as shown Fig. 2-1, and open the Front Panel as shown Fig. 2-3.

FOR THE KEYBOARD

FOR THE BEND PANEL BLK

Fig. 2-2

1) Remove 6 screws as shown Fig. 2-2 and Fig. 2-3, and disconnect the connectors P4, P5 on the CPU PC Board and PI on the OPERATION (B) PC Board.

PI P5 P4 P2 PI

SCREWS

Fig. 2-1

SERVICE MANUAL-

SCREWS

FOR THE BEND BLK

DISCONNECT PI 8 P2 (ON THE CPU PCB),

WHEN DISMANTLING THE KEYBOARD.

DISCONNECT P4 8 P5 (ON THE CPU PCB),

AND PI (ON THE OPERATION(B) PCB), WHEN

DISMANTLING THE BEND PANEL BLK.

Fig. 2-3

III. CONTROLS

LFO PARAMETER SET-UP KNOBS

DEPTH: Sets the modulation intensity

SPEED: Sets the modulation frequency.

DELAY: Sets the amount of time for the modulation to start after pressing a

Key.

LFO SELECT BUTTON and INDICATORS-

To select destinations of LFO effect.

LFO WAVEFORM SELECT BUTTON and IN

DICATORS

CHORUS (1/2/OFF) SELECT -

BUTTON and INDICATORS

To select chorus effects or off

ARPEGGIO MODE

SELECT BUTTONS and INDICATORS

MODE: To Select 'UP*, DOWN', UP and

DOWN'.

HOLD: To Hotd an arpeggiated figure.

ON/OFF: To turn on or off the arpeggiation effect or function. In whole mode, the entire keyboard is arpeggiated.

In 0-6 Split mode, arpeggiation af fects the upper split only. In 2-4.

4-2 and 6-0 split modes, arpeggia tion affects the lower split only.

ARPEGGIO SPEED CONTROL KNOB

MASTER LEVEL CONTROL

SPUT BALANCE LEVEL CONTROL

UNISON MODE

SELECT BUTTON and INDICATORS

AUTO TUNE BUTTON-

WHEEL UPPER/LOWER SELECT BUTTON and INDICATORS

PINCH BEND DEPTH CONTROL KNOB

Sets the amount of pitch change.

PITCH BEND WHEEL —

To change the pitch

CUT OFF FREQUENCY CONTROL KNOB

MODULATION WHEEL

The modulation wheel has no effect when it rotated to "MINI" direction, add modulation when it rotated to "MAX" direction.

SPLIT MODE ON/OFF BUTTON

SPUT MODE SELECT BUTTON and INDI

CATORS

COMPERE/EDIT RECAUJKEY TRANS

SELECT BUTTONS and INDICATORS

OCTAVE SELECT BUTTON and INDICA

TORS

To set the basic octave range of the key board between 2' (highest range) and 32'

(lowest range).

VCO PARAMETER SET-UP KNOBS

PJLSE WIDTH: Acts tike a tone control that changes the timbre of each

SEED: waveform.

Controls an LFO frequency that changes the width automatically

E DEPTH:

AVCO) - B (NOISE/SAMPLER)

EUANCE CONTROL KNOB v:f parameter setup knobs

GTT OFF FREQ: To Set a cut off frequency oftheVCF(LPF).

RESONANCE: To boosts the Amplitude of frequencies near the cut off frequency setting.

ICY FOLLOW: To change the cut off fre quency according to the key played (higher or lower

CO MOD:

I-PF: note) to maintain the same timbre.

To produce musically useful timbre shifts.

To set a cut off frequency of the high pass filter.

EG POLARITY SELECT BUTTON and IN

DICATORS

EG ASSIGNMENT/SELECTION BUTTONS and INDICATORS

EG PARAMETER SET-UP KNOBS

NOISE and SAMPLE! I INPUT

CONTROL BUTTONS

NUMERIC DISPLAY

VCO WAVEFORM SELECT BUTTON and

INDICATORS

- WRITE BUTTON

- CASSETTE INTERFACE SELECT BUTTON

-SERVICE MANUAL-

PROGRAM SELECT BUTTON

To select the Bank and Preset Number.

To Select Tape Interface.

To Sets MIDI channels.

To Sets and Select Split preset

ATTCK:

DECAY:

SUSTAIN:

RELEASE:

Sets the amount of time (T1).

Sets the amount of time (T2).

Sets the level.

Sets the amount of time (T3) after a key is released.

DEPTH LEVEL: Sets the overall amplitude of the maximum deflection and also the sustain level.

Fig. 3-1

IV. THE KEYBOARD REACTION-SHIP TO EQUALLY

TEMPERED

MUSICAL-NOTATION.

- Piano keyboard oeofE

mil

PfffTtTT

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»S*SoS*«°**5o*°S--oo*wae»t5o5i*o*»«o«Hj,^ul|0^00,ow0ffl00_owo^«oo-tow

.» SSSS SIS *^S S^ So= g« £8g

II III II III || |ll II III no "no> oo ico oo ^i< i*• ».•--*

n m ii in y!»it in \i m

in ii mi ii i ii

•^Keyboard Coverage by

Frequency Range Setting

32

16

8

4

2

Piano

Co-Cs

C.-Ce

C2-C7

Cj-Ca

C4-C9

Fig. 4-1

V- PRINCIPAL PARTS LOCATION

CHORUS PCB

LIOI2B5O3O

OPERATION (B) PCB

LIOI2A5O6O

OPERATION(A) PCB

LI0I2A5040

POWER

TRANSFORMER

FILTER PCB

L600I05080

-SERVICE MANUAL-

POWER SUPPLY PCB

LI0I2BS050

Fig. 5-1

VI. ADJUSTMENT

6-1. BALANCE OF ± 6V ON THE POWER SUPPLY PC BOARD

1) Connect a Digital DC Voltmeter between Pin [T]

(+6V) and Pin 0 (GND) of connector P4 on the

POWER SUPPLY PCB as shown Fig. 6-1.

2) Read the + Voltage Value at the Pin [T|, and connect a

Fig. 6-1 POWER SUPPLY PCB Adjustment Points

Digital DC Voltmeter to Pin [4].

3) Adjust VRI so that the Voltage Value at Pin |

Pin GQ are equal or within ± 0.1V.

6-2. OFF-SET OF FINAL VCA ON THE VOICE PC BOARD

land

TP.O <J

FOFF SET piC44

0

TP2

IC42

JiVRS

J/OFF SET

1) Set the ENVELOPE GENERATOR to VCA mode and set the EG DEPTH Control to maximum posi tion.

2) Connect a Digital Voltmeter between TP1 and GND

Fig. 6-2 VOICE PCB Adjustment Points and adjust VR7 so that the Digital Voltmeter Read 0

±2mV.

3) Connect a Digital Voltmeter between TP2 and GND and adjust VR8 as same manner as VR7.

-SERVICE MANUAL-

6-3. BALANCE OF BBD OUTPUT ON THE CHORUS PC BOARD

•L

J2

ICI3

J3

TPI

>IC4l > IC5

IC10

I

VR2

BALANCE

> ice I > ic9 I

CLIPPING LEVEL

■ I kHz AUDIO SIGNAL FROM OSC

CLIPPING LEVEL

Fig. 6-3 CHORUS PCB Adjustment Points and Instrument Connection

1) Set CHORUS switch to "2".

2) Connect an oscilloscope between TPI and GND on the CHORUS PC Board.

3) Connect an Audio Signal Generator to Pin [I] and||] of

connector PI on the CHORUS PC Board, and supply

1 kHz Audio Sine wave signal, and Adjust output level control of Audio Generator, so that the waveform on

Fig. 6-4 the oscilloscope is clipped a bit.

4) Adjust VR1 so that the Clipping level at upper side and lower side of the waveform are the same clipping level.

5) Connect an oscilloscope between TP2 and GND, and adjust VR2 as same manner as VR1.

6-4. OFF-SET OF IC6 (LF356) ON THE CPU PC BOARD

□

1) Set to center position of VR1 on the CPU PC Board.

SERVICE MANUAL-

Fig. 6-5 CPU PCB ADJUST POINT

VII. PC BOARD TITLES AND IDENTIFICATION NUMBERS

VIII. MIDI IMPLEMENTATION CHART

MIDI Implementation Chart Version : 1.0

Mode 1 : OMNI ON, POLY

Mode 3 : OMNI OFF, POLY

Mode 2

Mode 4

OMNI ON, MONO

OMNI OFF, MONO

-SERVICE MANUAL-

Yes no

SECTION 2

PARTS LIST

TABLE OF CONTENTS

RECOMMENDED SPARE PARTS LIST

1. PC BOARD BLOCK

2. VOICE PC BOARD

3. CPU PC BOARD

4. CHORUS PC BOARD

5. OPERATION (A) PC BOARD

6. OPERATION (B) PC BOARD

7. POWER SUPPLY PC BOARD

8. FILTER PC BOARD

9. PANEL BEND BLOCK

10. ASSEMBLY BLOCK

11. FINAL ASSEMBLY BLOCK

INDEX

14

14

14

15

13

14

14

14

15

15

17

17

18

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.

-PARTS LIST-

11

HOW TO USE THIS PARTS LIST

1. This Parts List lists those parts which are considered necessary for repairs. Other common parts, such as resistors and capacitors, are listed in the "Common List for Service Parts" from which these parts should be selected and stocked.

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) PC Board

2. HEAD BASE BLOCK 6. MAIN PC BOARD

PART NO. DESCRIPTION

BH-T2023A320A

HP-H2206A010A

ZS-477876

ZS-5 36488

2G-402895

HEAD BASE BLOCK

HEAD R/P PR4-8FU C

PAN20X03STL CMT

BID20X08STL CMT

SP CS ANGLE ADJUST

'—SP (Service Parts) Classification

A small "x" indicates that this part is not shown in the Photo or Illustration.

This number corresponds with the indi vidual parts index number in that figure.

Symbols for primary destination—!

[A]: AAL(U.S.A.) [S]: SAA (Australia)

[B]: BEAB(England) [U]: U/T(Universal Area)

[C]: CSA(Canada) [VJ: VDE(W. Germany)

[E]: CEE(Europe) [Y]: Custom Version

[J]:JPN( Japan)

This number corresponds with the Figure-

Number.

Diagrams.

The available PC Board Blocks are listed separately.

5. When Part No. is known, Parts Index at end of Parts List can be used to locate where that part is shown in Parts List by its Reference No. listed at right of Part No.

—These reference symbols correspond with component symbols in the Schematic

At COMPONENTS. FOR CONTINUED SAFETY, REPLACE SAFETY

WTIH MANUFACTURE'S RECOMMENDED PARTS

AVERTISSEMENT

LBS COMPOSANTS CRITIQUES OB SECURTlt FOUR MAINTENIR LE DEGRE

DE t'APPAREIL, NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE

-PARTS LIST-

12

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.

57

58 N

59

60

61

62

63 N

64 N

65

66 N

67

68

69

70

40 N

41 N

42

43

44

45 N

46 N

47 N

48 N

49

50

51

52

N

N

53

54

55

56

N

N

N

N

N

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33 N

34 N

35

36 N

37 N

38 N

39 N

1

2

3

4

5

6

7

8

9

10

11

12

13

14

PART NO. DESCRIPTION

EI-364246

EI-360954

EI-364378

EI-364245

EI-362710

EI-364273

EI-364250

EI-364308

EI-360228

EI-353227

EI-337228

El-355904

EI-364275

EI-355906

EI-355917

EI-355909

EI-3559I0

EI-364247

EI-364253

EI-302233

EI-310036

EI-360025

EI-356049

EI-360036

EI-364674

EI-357060

EI-354146

EI-354149

EI-354232

EI-364257

EJ-364256

EJ-360771

EM-364260

EQ-348929

ER-326169

ER-328278

ES-306430

BK-364242

BT-364697

BT-364243

BT-364698

ED-200213

ED-357038

ED-359863

ED-364261

ED-357754

ED-301911

ED-344280

ED-331626

ED-329058

ED-319167

ED-306012

ED-346463

EF-355226

EF-359343

EF-358974

EF-623103

EF-601964

EF-601942

EF-309388

EF-309387

EF-311839

EF-309392

EF-308847

EF-348123

EI-359552

EI-359626

EI-359628

EI-355113

EI-364319

KEYBOARD SWITCH ESK-7022 61KEY

A TRANS POWER L1012-10 (J)

A TRANS POWER L1012-30 (C, A)

A TRANS POWER L1O12-5O (E, V, B, S)

A D SILICON DBB10B 100/1.0A

D LED LN81 CV-(LF) AK ORANGE

D LED SLP-981C-50

D SILICON DS135D 200/1.0A

D SILICON H DS448

D SILICON H GMA-01-FY2 F05

D ZENER HHZ6C3

D ZENER HHZ7 A3

D ZENER H HZ7FA F10 C3

A FUSE BET T 1.00A 250V (B)

A FUSE BET T 1.60A 250V (B)

A FUSE BET T 630MA 250V (B)

A FUSE SEMKO T 1.00A 250V (E, V, S)

A FUSE SEMKO T 1.60A 250V (E, V, S)

A FUSE SEMKO T 630MA 250V (E, V, S)

A FUSE TSC A 250V 0.80A (J)

A FUSE TSC A 250V 1.00A (J)

A FUSE TSC A 250V 1.60A (J)

A FUSE TSC 125V 1.25A (C, A)

A FUSE TSC 125V 1.60A (C, A)

AICM523OL

AIC M5236L

A IC NJM78M 15A

A IC NJM79M 15A

ICBA715STD

ICCD4051BE

ICCEM3394

1C1R9311

IC LA6082D

IC LA6082S

ICLC3517NL-20

IC LF356N

ICMD6205

IC MN3009

ICMN3101

ICM5216L

ICM5218L

IC M74LS04P

ICM74LS05N

ICM74LS14P

ICM74LS373P

ICM74LS38P

ICM74LS42P

ICNJM13600

ICPST520D-2

ICTC4051BP

ICTC4066BP

IC TC74HC138P

IC TC74HC139P

ICTC74HC32P

IC TMM2764ADC AX60 V1.2 CUSTOM

ICUPD7811G-144

IC UPD8253C-2

IC UPD8255AC-2

ICUPD8279C-2

OSC X'TAL NR-18 12MC

DINJM1704 3P

DIN J TCS5O37-OI -241 13P

IND LE GL-7P201

RELAY SIG G5A-232P 2TR 12V

A R FUSE ERD2FC S10 1/4W 22ROG

A R FUSE ERD2FC 1/4W 10ROG

A SW SLIDE J-S4OI3#O1 01-2

(E,V,B,S)

"NOTE" N: New Parts

-PARTS LIST-

13

1. PC BOARD BLOCK

2. VOICE PC BOARD

REF.

NO.

3-1

3-IC7

3-BT1

PART NO. DESCRIPTION

EJ-358691 SOCKET IC DILB28P-8J

ASSEMBLY BLOCK

EI-364674 IC TMM2764ADC AX60 V1.2

EZ-358816

CUSTOM

BATTERY LITHIUM BR2032-1HF

4. CHORUS PC BOARD

REF.

NO.

PART NO. DESCRIPTION

4-IClto3,6,7,

10,11,13

4-IC4,8

4-IC5.9

4-IC12

4-TR1.2.5,

8,18

4-TR3.4,12,

13,16,17

4-TR6, 7,

EI-337228

EI-364308

EI-360228

EI-353227

ICM5218L

IC MN30O9

ICMN3101

ICM5216L

ET-348302 TR FET 2SK381 C, D F05

ET-360067 TR 2SC333O T, U F05

ET-353899 TR-2SA1317 S, T, U

ET-352994 TR2SC3401F05

11,15

4-TR9,10,14

4-D1 to 10

4-VR1.2

4-VR3

4-RL1

4-R120 to 123

4-C9

4-C24

4-C35,37

4-J3

EV-358829 R S-FIX H RH0615CJ4J 3P 223

EV-364321 VR ROTARY 12P10x0D B103

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

ER-364336 ROMFHS12 FS 1W 201J

EC-355170 CPPVS05CQMFS92 181J50DC

EC-360719 C PP V S05 CQMFS92 101J 50DC

EC-364306 C PP V S05 CQMFS92 221J 50DC

EJ-353031 PHONE J 3P HLJ0520-010

5. OPERATION (A) PC BOARD

3. CPU PC BOARD

14

7. POWER SUPPLY PC BOARD

REF.

NO.

PART NO. DESCRIPTION

7-IC1

7-IC2

7-IC3

7-IC4

7-TR1.3

7-TR2

7-TR4to6

7-D1

7-D2

7-D3,5,

6,12

7-D4

7-D7

7-D9,11

7-D13

7-VR1

7-FR1.2

7-R1

7-R2

7-R3

7-R4

7-R5

7-R6

7-R7

7-C1

7-C2, 3

7-1

7-2

POWER SUPPLY PC BOARD

EI-359552

EI-359626

EI-359628

EI-348123

ET-356817

ET-354083

ET-360067

ED-200213

ED-357038

ED-357754

ED-319167

ED-306012

ED-329058

ED-301911

EV-364326

ER-328278

ER-360725

ER-360732

ER-356113

ER-356259

ER-341577

ER-305128

ER-364324

EC-322804

EC-316231

EZ-200473

ZW-632226

AIC M5236L

A IC NJM78M15A

A IC NJM79M15A

AICM5230L

A TR 2SB891 Q, R

A TR 2SD1189 Q, R

TR 2SC3330 T, U F05

D SILICON DS135D 200/1.0A

DZENER H HZ6 C3

R S-FIX H VM5CK-PV3P 0.2W 222

A R FUSE ERD2FC 1 /4W 10ROG

A ROMFHS12 FS 1W 221J

RMFHF10 1/4W 13O2G

R MF H F10 1/4W 33O1G

RMFHF101/4W7501F

R MF H F10 1/4W 15O2F

R MF H F10 1/4W 1402G

C EC V CUT SM 472M 16.0DC

C EC V CUT SM 222M 35.0DC

SILICON RUBBER SHEET TC-30

WASHER INSULATOR (BUSH M)

7-F2

7-F2A

7-F2B

7 F2C

7-F3,4

7-F3A.4A

7-F3B.4B

7-F3C.4C

ASSEMBLY BLOCK

EF-311839

EF-308847

A FUSE TSC A 250V 1.60A (J)

A FUSE TSC 125V 1.60A (C, A)

EF-601964

EF-359343

EF-309387

EF-309392

EF-623103

EF-355226

A FUSE SEMKO T 1.60A 250V (E, V, S)

A FUSE BET T 1.60A 250V (B)

A FUSE TSC A 250V 1 .OOA (J)

A FUSE TSC 125V 1.25A (C, A)

A FUSE SEMKO T 1 .OOA 250V (E, V, S)

A FUSE BET T 1 .OOA 250V (B)

8. FILTER PC BOARD

REF.

NO.

PART NO. DESCRIPTION

8-FL1

8-C2.3

8-C4

8-F1

8-F1A

8-FIB

8-F1C

FILTER PC BOARD

EO-360068 COIL LF LF-2 B

EC-358450

EC-338411

A C CE V B I02M 400AC

A C CE V FZ 103P 400AC

ASSEMBLY BLOCK

EF-309388

EF-309392

A FUSE TSC A 250V 0.80A (J)

A FUSE TSC 125V 1.25A (C, A)

EF-601942 A FUSE SEMKO T 630MA 250V

EF-358974

(E,V,S)

A FUSE BET T 630MA 250V (B)

9. PANEL BEND BLOCK

-PARTS LIST-

15

ASSEMBLY BLOCK

15 14 I 2 17 SW902

16

-PARTS LIST-

A(SW90l)

1

i

! '

FINAL ASSEMBLY BLOCK

10. ASSEMBLY BLOCK npr

£q PART NO. DESCRIPTION

11. FINAL ASSEMBLY BLOCK

10-1

10-1A

10-1B

10-IC

EW-524845

EW-358858

EW-359641

EW-358631

10-1D

10-2

10-2A

10-3

10-4

10-5

10-6

10-7

10-8

10-9

10-10

10-11

10-12

10-13

10-14

10-15

10-l6x

ZW-273892

ZS-350934

10-17

10-T901

ZS-355511

BT-364697

10-T901A BT-364243

10-T901B BT-364698

10-SW901 ES-306430

10-SW902 ES-364478

I0-J90U EJ-358633

EW-358630

EZ-631945

EZ-302906

SA-332850

ZS-344754

ZS-362286

ZS-341960

BK-364242

ZS-354230

ZS-201778

ZW-274026

ZW-273914

ZW-698308

ZS-411232

ZW413267

A AC CORD 2 CORES VM1165B,

VFFJ(J)

A AC CORD 2 CORES KP-11

SJTAWGI8UC(C,A)

A AC CORD 2 CORES KJM19C/KS-17

(E,V)

A AC CORD 2 CORES KS-17

LTBS2FBS(B)

A AC CORD 2 CORES KP56O LTSA2F

KS17S(S)

STRAIN RELIEF SR-4N-4 (J)

STRAIN RELIEF SR-6N-4 (C, A)

ROUND FOOT

ST PAN30x06STL CMT CO80

(FOOT FIX)

PT BID40x 18STL BCM

ST BID40x06STL BNI

KEYBOARD SWITCH ESK-7002

61KEY

BID50x08STL BNI

PAN40x08STL BNI

SW50

SW40

RV NYL3OxO55 BL

BID40xl0STL BNI

(TRANS POWER FIX)

N FRANGE 40STL CMT

(TRANS POWER FIX)

TW40 (TRANS POWER FIX)

PT BR3OxO8STL BNI (E, V. B, S)

(SW90! FIX)

BID30x06STLBNI

A TRANS POWER L1012-10 (J)

A TRANS POWER L1O12-3O (C, A)

A TRANS POWER L1012-50 (E, V, B, S)

A SW SLIDE J-S4013#01 01-2

(E,V,B,S)

A SW SEESAW SDDT SPST TYPE

=A T=8.5

A SOCKET INLET SOT017 2P

(E, V, B, S)

■PARTS LIST-

17

AX60

INDEX

-PARTS LIST-

AX60

-PARTS LIST-

19

20

MEMO

AKAI

MODEL AX60

SECTION3

SCHEMATIC DIAGRAM

AND PC BOARD

TABLE OF CONTENTS

1. POWER PC BOARD

2. CONNECTION DIAGRAM

3. CONTROL BLOCK DIAGRAM

4. VOICE AND CHORUS BLOCK DIAGRAM

5. CPU DIAGRAM

6. CPU PC BOARD

7. VOICE PC BOARD

8. VOICE DIAGRAM

9. OPERATION DIAGRAM.

10. OPERATION (A), (B) PC BOARD.

11. CHORUS DIAGRAM

12. CHORUS PC BOARD

13. LOCATION OF ICs

,

This Manual is FOR INTERNAL USE ONLY and most 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.

•••• m

.... 3

>••• 4

.... 5

.... 6

.... 7

8

..... 9

10

...11

...12

,.13

,.14

3

B

8

H* •I=PNP TRANSISTOR

8

!•!• m\zHPH TRANSISTOR

TRI,2,3,8,I8

TR3.4.I2,13,16,17

TR6,7,II,I3

TR9.I0,14

--2SK38KC.D)

-2SC333O(T,U)

-2SAI3I7(T,U)

2SC34OI

2SC3330

2SAI3I7

2SC34OI

CHORUS PCB LI0I2B5030

IC's

IC I

IC2

IC3

IC4

IC5

IC6

IC7

IC8---A3

IC9—A3

ICIO A2 ten—8i

ICI2—83

ICI3—82

A I

A I

A2

83

83

A3

A4

LOCATION OF COMPONENTS

TR's

TR2

TR3

TR4

TR5

A I

A3

83,4

A,BI

TR6 A4

TR7-—A4

TR8---A3

TR9 A ,84

TRIO—-84

TRII

TRI2

TRI3

A4

84

A4

TRI4 B4

TRI5

TRI6

A4

A3

TRI7—A3,4

TRI8---AI

CONNECTORS

PI

P3

P5

W8

W9

Al

B4

-81

84

84

IC23 81,2

IC24—CI.2

IC2S—01,2

IC26 01,2

IC27—EI.2

IC28-—Al,2

IC29—CI.2

IC30—El,2

IC3I A2,3

IC32 82,3

ICS3-—C2,3

IC34 02,3

IC33-—02,3

IC36—E2,3

IC37—A,B3

IC36 C3

IC39—E3

IC40—E4

IC4I 04

IC42-—C4

IC43 A,B4

IC44—84

IC43-—A4

TR't

TRI

TR2

62

62

TR3 63

TR4—E.FI

TR3

TRI4

Fl

0,E4

TRI5—-E4

LOC AT I ON OF COMPONENTS

IC*f

ICI

IC2

61

62

IC3

IC4

63

64

IC5

IC6

61

61

IC7 61

IC8 -—62

IC9

IC10—

ICII

62

62

G2

ICI2 62,3

ICI3---G3

ICI4---G3

ICI5---G3

ICI6— -63

ICI7 63,4

ICI8---G4

ICI9 64

IC20-—F,64

IC2I El

CONNECTORS

PI

P3-

P4

PS

63,4

63

61,2

A4

|

TRANSISTOR TRI to 3

TR4

TR5,14,19

2SC3400

-2SC3330 IT.UI

2SC3383ISI

2SC3330

2SC34OO

VOICE PCB LI0I2A50I0

TRI 2SC3400

TR2.3—2SC3383

CPU PCB

LI0I2A5020

74HC138

74HC139

74HC38

74LS42

74LS04

74LS05

74LS373N

CEM3394

MN3009

TC4066

MD62705

MN3101

TC4051

OUMUBL CTUOPT

*n *n

SECTION 4

SERVICE BULLETIN

O This section describes the information on techniques revisions and troubleshooting for ser vicing and adjusting AX60.

O To maintain the performance of AX60, see also AX60 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.

This Manual is TOR INTERNAL USE ONLY and most 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.

MODEL: AX60

001 Subject: To improve performance

No. MS-0008 DATE: March 1986

The ROM IC program has been changed to improve the following points.

1. AUTO TUNE request by MIDI is recognized but is not transmitted.

2. AUTO MUTE request by AUTO MUTE button is accepted up to 6 times causing other functions inoperative for up to 30 - 35 seconds.

3. When VERIFY is executed and the data recorded on the tape and that of

AX60 is different whatever the reason may be, the data in AX60 may be re-writen when PROTECT switch is off.

4. Since the position of PITCH BEND setting VR is memorized when the unit is turned off, when the unit is turned on again after changing the posistion of setting VR, the amount of Pitch Bend effect is different from its VR position.

5. In SPLIT mode, the MIDI channels are set for Upper keys and Lower Keys separately. But even after SPLIT mode is released, MIDI channels are not caceled thus AX60 accepts 2 MIDI channels.

Ref. No. Part No. Description

(NEW) 3-IC7 EI-364674

Changed from : January 1986

Service Ref. No. : CNL0101, CNL0113

IC TMM2764ADC AX60 VI.2

MODEL: AX60

002 Subject: Standardization of parts

No. MS-0008 DATE: March 1986

In order to accommodate the same power supply P.C. Board as of AX73, the circuit has been changed as follows.

Changed from : April 1986

Service Ref. No. : CNA1861

MODEL: AX60

INDEX

tX60

B C

OPERATION(A) PC8 LI0I2A5040

B

9»J 81 POWER SUPPLY) LINE

OPERATION(B) PCB LI0I2A5060

2SAI3I7

H

NOTE

UNLESS OTHERWISE SPECIFIED

ALL RESISTORS Hi OHMS 1/4WU)

ALL CAPACITORS IN mf SOWVO)

AX60

OPERATION(A)/(B)

SCHEMATIC DIAGRAM no.5-3 8602 I 4A

t

AX 60

04

B

MPUT SELCCT |Sj

LFOl.t \7\

CHOWS 0*>0FF hj

CS8

100/29! Ml

CSO

100/281 Ml

—a—t 3—

CHORUS PCB LI0I2B5030

IBitJI 8 ( POWER SUPPLY ) LINE

SIGNAL LINE

tSS»

IT. oi >

ICS MN3J0I

C

2SK38I

2SAI3 17

2SC3330

2SC340I

61

2SAI3I7

2SC333O

2SC340I

IKOICATEO VOLTAGES ARE MEASURED AT CHORUS " I" MOOE

® a PULSE

NOTE

UNLESS OTHERWISE SPECIFIED

ALL RESISTORS IN OHMS 1/4WO)

ALL CAPACITORS IN *F 50WV( J) mm

AX60 CHORUS

SCHEMATfC DIAGRAM no.5-5 8602 I 6A

8

H

h

UU:

ssssasts iii

1 'I

JD_

II

(SAV?1

IVERlfYl

II

3$

I SAMPLER

TOCNKt

PS

II m

4

OPERATION (A) PCB H0I2A5040 to cvu pci

-VCF-

. n cro ret

TRI, 2,3

-EMVELOPE GENERATOR-

2SAI3I7

II III wffl

!• •WM4

^ / 1 * I * | g | ^"/V *^y M± ii ^ ' ~ '?j''- ! \ t^ ^^^ "^ -Z~*?\!a

H r:

\\\\\\\

-1

-I a *

OB®—'

PEDAL

SUSTAIN

ARPEGGIO

EXT SYNC

C4t O.OOllZl

TAPE

OUT

2SC3330

2SC2400

CPU PCB L4OI2A5O2O

NOTES

UNLESS OTHERWISE SPECIFIED

ALL RESISTORS IN OHMS 1/6W(J)

ALL CAPACITORS IN *F 50 WV(J)

AX60 CPU

SCHEMATIC DIAGRAM

no. 5-2 860213A

H

MEMORY pROTECT h

35

o m

I i

\

I

) FILTER MOD ID) CV

OWAVE 8ELCCT (U) CV

I

1

Svcp-I cv

Hvca-s cv

^resonance iu) cv

Sa-b balance ioi cv

OfiXT IM ON/OFF

AkOISE IN ON/OFF

VOICE 2 OUT r

1 j j j

r

LoV°J£^:5_J

CHORUS PCB L1012B5030

H

AX60

VOICE a CHORUS

BLOCK DIAGRAM

no.2-2 8602 MA

61

B

OPERATION (A) PCB LI0I2A5040

[operation switchedes "I

I I

OPERATION (B) PCB LI0I2A5060

CPU PCB LI0I2A5020

B

OPERATION(B) PCB

LI0I2A5060

OPERATION(A) PCB

LI0I2A5040

CHORUS PCB

LIOI2B5O3O

I | U/L MIX |

1H4—^, I oovACfpi ▲ n fuse I ■

E.V.B.B

I

,

,_1_ h»r J

LINE FILTER PCB L600ID5080

I VOLTAGE SELECTOR |

VINDICATES SAFETY CRITICAL COMPONENTS FOR CONTINUED SAFETY,

REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'S

RECOMMENDED PARTS

NOTE

UNLESS OTKERmSE SPECIFIED

ALL RESISTORS W OHMS I/6WW)

ALL CAPACITORS IN pf 50WVU)

POWER TRANSFORMER IS DIFFERENT

ACCORDING TO AREA 2SC3B3O 2SB89I

B C

VOICE PCB

LI0I2A50I0

H

POWER SUPPLY PCB LI0I2B5050

H

AX60

CONNECTION DIAGRAM

no.5-1 8602I2A