Page 1
BLOCK DIAGRAM
MX-GT80/MX-GT90
CN215
FMH031-1
CN205
CN207
FMB-028-5
RELAY
RY2
CN217
RELAY
RY1
J81
SPEAKER TERMINAL
FMA-006
FM
AM
5
FM FRONTEND
TU1
MW RF/OSC
COIL
M
4
L CAM
R CAM
SW1 6
CN805
CN804
M
CN855
1SSW 3SSW
1MSW 3MSW
CN854
IF
L MOTOR
DRIVER
R MOTOR
DRIVER
CAM0 3
CAM4 7
FM/DET
AM/DET
IC 1
PLL
Synthesizer
IC2
FMN-008
IC 851
IC 852
UNIT MICOM
CD CHANGER
CONTROL
IC 251
FMC-022/024-1
CN1
CN11
DIGITAL
OUT
TUNER
MPX
TX
CN661
CN651
TX
SOURCE SELECTOR
& E.VOL
IC436
CD
CN315
CD OUT
TAPE
KCMND
M STAT
KCLK
MRDY
SLCKEY
1 2
MAIN
VOLDA,VOKCK
CN870/CN871
CN869\0/CN861
MPX
MICOM
IC 810
MAIN HPF
MUTE SYSTEM
IC481
INPUT AMP
IC 501
FMB-028-1
HARMONICS
GENERATOR
IC 502
KEY1,11 CD1LED
LPF
IC 526
CD2LED
CD3LED
SEARCH R,F
KEY21,22
FW915
CN911
FW714
FW915
FW901
FMH-031-2
MAIN
POWER AMP
IC602
CN704
SUB WOOFER
POWER AMP
IC 701
FMB-028-3
KEY
LED
FMH-031-3
SEARCH
KNOB
3
PICKUP
TRACKING
FOCUS
FEED
M
SPINDLE
M
P001
P011
A+C
B+D
E F
CN601
FM SM
CN801
RF & SERVO AMP
F
T
FOCUS/SPINDLE/
FEED/TRACKING
BTL DRIVER
IC801
IC601
ARF
DIGITAL SERVO
&
PROCESSOR
IC 651
DRIVER
CN316
FL DISPLAY
FL 801
VOL
KEY2,3,21,32,41,42
CN880
CN870
LED
FMB-028-2
MAIN VOL
WOOFER VOL
SOUND MODE
KEY
LED
2
PB MECHA HEAD
R
L
RP MECHA HEAD
R
L
CN301CN302
CN305
FMP-007-1
PB/REC AMP
IC302
HEAD SW
IC301
CN306
SERIAL TO PARALLEL
PORT EXTENSION
IC303
PHOTO A,B
SOLENOID DRIVE FOR RP MECHA
Q3314 Q3315
SOLENOID DRIVE FOR PB MECHA
Q3312 Q3313
SLCKEY1 2
DRIVER
FW301CN303
M
FMP-007-2
SLCKEY2
PHB
SLCK
CN333
PHA
PB MECHA
PP MECHA
IC332
SW302
SW306
IC331
SOLENOID
SW303
SW304
SW305
SW316
SOLENOID
1
ABCD E F G
2-1
Page 2
Standard schematic diagrams
Power supply section (MX-GT80)
MX-GT80/MX-GT90
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
F102
6A-125V
5
F101
6A-125V
SHEET 3/9 SHEET 5/9
QQT0320-001
T001
F001
5A-125V
R1001
CN250
QGA7901C1-02
3.3M
CN220
QGD2504C1-03Z
QJK015-071214
CN214
QGB2510K2-04
CN213
T3.15AL
0.33( 1/2W)
R1002
F102
T3.15AL
2SC2785
R250
3.3k
F101
Q250
Q251
2SC2235
D255
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
T4AL
F102
T4AL
T001
QQT0320-003
F001
F101
QGA7901F1-03
CN218
T2AL
CN208
WJK0114-001A
CN250
QGA7901C1-02
470/16
CN209
WJK0070-002A
D252
1N4003
C252
0.0047/250
RY3
QSK0094-001
D254
1SS133
QQT0253-002
F001
T2AL
CN250
QGA7901C1-02
T002
T001
QQT0320-002
CN218
QGA3901C1-02
D251
1SS133
3.3k
R253
C253
0.0047
C251
D256
MTZJ6.2A
C250
4
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
F102
4A-250V
F101
4A-250V
3
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
F102
T4AL
2
F101
T4AL
QQT0320-003
T001
QQT0320-003
T001
QGA7901F1-03
QGA7901F1-03
CN218
CN218
CN219
QGA7901C1-04
F001
2A-250V
CN208
WJK0114-001A
CN209
WJK0071-002A
CN208
WJK0114-001A
QGA7901C1-02
F001
T4AL
CN250
F003
T2AL
CN250
QGA7901C1-02
CN220
QGD2504C1-03Z
QJK015-071214
CN214
QGB2510K2-04
CN213
T3.15AL
0.33( 1/2W)
R1002
F102
T3.15AL
2SC2785
R250
3.3k
1/9
MX-GT80
MX-GT90
2/9
MX-GT80/MX-GT90
3/9
MX-GT80/MX-GT90
4/9
MX-GT80/MX-GT90
5/9
MX-GT80/MX-GT90
6/9
MX-GT80/MX-GT90
7/9
MX-GT80/MX-GT90
8/9
MX-GT80/MX-GT90
9/9
470/16
CN209
WJK0070-002A
D252
1N4003
C252
0.0047/250
RY3
QSK0094-001
D254
1SS133
QQT0253-002
F001
T2AL
CN250
QGA7901C1-02
T002
T001
QQT0320-002
CN218
0.0047
C250
R253
QGA3901C1-02
3.3k
C251
F101
D251
1SS133
Q250
Q251
2SC2235
D255
D256
C253
MTZJ6.2A
MX-GT80/MX-GT90
Parts are safety assurance parts.
When replacing those parts make
SHEET 1/9
sure to use the specified one.
1
2-2
HABC DE FG
Page 3
Power supply section (MX-GT90)
MX-GT80/MX-GT90
0.33( 1/2W)
R1002
CN220
QGD2504C1-04Z
CN214
QJK015-071214
F102
5
SHEET 3/9 SHEET 5/9
6A-125V
F101
6A-125V
QQT0322-001
T001
F001
5A-125V
R1001
CN250
QGA7901C1-02
3.3M
4
0.33( 1/2W)
CN220
QGD2504C1-04Z
CN214
QJK015-071214
R1002
4A-250V
4A-250V
F102
F101
T001
QQT0322-003
F001
2A-250V
CN250
QGA7901C1-02
CN220
QGD2504C1-04Z
CN214
QJK015-071214
QGB2510K2-04
CN213
0.33( 1/2W)
R1002
F102
T4AL
R250
3.3k
T4AL
2SC2785
F101
Q250
Q251
2SC2235
D255
C251
CN209
470/16
0.0047/250
WJK0070-002A
D252
1N4003
C252
RY3
QSK0124-001
D254
1SS133
T002
QQT0253-002
F001
T2AL
CN250
QGA7901C1-02
T001
QQT0322-002
CN218
QGA3901C1-02
D251
1SS133
3.3k
R253
C253
0.0047
D256
MTZJ6.2A
C250
CN218
QGA3901C1-03
CN219
WJK0071-002A
3
0.33( 1/2W)
R1002
CN220
QGD2504C1-04Z
CN214
QJK015-071214
T4AL
T4AL
F102
F101
2
QQT0322-003
T001
CN209
CN219
QGA7901C1-04
WJK0071-002A
F003
T2AL
QGA3901C1-03
CN218
CN208
WJK0114-001A
F001
T4AL
CN250
QGA7901C1-02
CN220
QGD2504C1-04Z
CN214
QJK015-071214
0.33( 1/2W)
R1002
T4AL
F102
T4AL
T001
QQT0322-003
F001
T2AL
F101
CN219
WJK0071-002A
CN218
QGA3901C1-03
CN250
QGA7901C1-02
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SHEET 2/9
1
ABCD E F G
2-3
Page 4
DC regulation & audio output section
MX-GT80/MX-GT90
CN705
QGA2501C1-02
0.047
0.047
1SS133
1SS133
MTZJ8.2B
C603
C604
D650
D725
R615
IC602
C621
10/35V
220p
220p
C622
10/35V
10
R613
10
C605
220P
56k
R603R604
56k
R617
C601 C602
0.022
L601
0.45
Q601
KTA1268/GL/-T
D619
10K
R621
R619
C683
1M
R680
0.082
Q680
R682
2SK301/PQ/-T
4.7M
C734
IC305
KIA7809API
C311
STBY
C312
10/50
1SS133
2.2K
R681
C652
C612
220
3.9K
0.0022
47/50
R666
R732
C732
R650
0.0022
C654
D315
MTZJ9.1B
4.7
0.1
4.7
R652
0.22
D622
MTZJ9.1B
R602
100
33k
C735
C651
0.1
STBY
R653
C608
R606
0.0022
0.0022
KIA7812API
C309
C733
0.22
R731
C653
R651
C623
IC304
47/63
1.2K
R655
0.22
Q613
C611
10
R614
R616
10
QNB0107-001
D314
10/50
KRC102M-T
100
R601
47/50
L602
MTZJ13B-T2
C606
220P
10
R674
0.022
0.45
KTA1268/GL/-T
R623
Q602
10K
Q612
KTA1267/YG/-T
220
R618
D620
1SS133
2.2K
R620
R667
R668
10k
10k
R654
0.22
C624
10/50
10/50
C610
10P
R608
56K
C614C616
0.047
0.047
4.7
J81
0.1
4.7
0.1
C310
IC701
2SA965/OY/-T
C706
R740
82K
R725
2SC2389S/SE/-T
Q726
R728
10K
R729
100K
R639
820
R640
820
C281
47/63
820
Q736
2SC3576-JVC-T
Q734
2SC3576-JVC-T
Q733
2SC3576-JVC-T
Q735
2SC3576-JVC-T
R739
820
100K
R726
KTC3199/GL/-T
Q728
C729
47/16
Q737
KRA111M-T
R736
4.7K
R734
4.7K
R733
CN703
QGD2504C1-03Z
5
4.7K
R735
4.7K
SHEET 6/9SHEET 4/9SHEET 4/9SHEET 4/9
C726
R730
10K
10/25
R727
100K
Q727
QGB2510J1-09
PRT
SWFB
SURR.CTRL
KTA1268/GL/-T
R281
CN704
QGD2504C1-03Z
MAINL
4
MAINR
CN706
QGD2504C1-03Z
CN201
D723
D728
1SS133
L201
QQR0779-001Z
D703 D704
R741
MTZJ36A-T2
MTZJ15C-T2
R723
MTZJ15C-T2
R742
R724
C707
R705
10
R774
0.22
R753
R754
D724
MTZJ36A-T2
C709
4.7p
R707
56K
10
C715
C713
0.047
0.047
R715
R713
10
47/63
820
C705
220P
220P
0.22
R717
C731
0.022
R761
1K
L701
0.45
Q701
D719
10K
R721
KTA1268/GL/-T
R719
R766
1K
R718
0.022
KTA1268/GL/-T
D720
1SS133
R720
5.6K
QGB2510K2-14
QGB2510J1-14
Q702
33k
1K
C730
R762
1K
1SS133
5.6K
CN205
Q713
2SC2235/OY/-T
L702
10K
R722
CN215
R704
R703
0.45
R714
R778
10K
10K
R777
C722
56k
56k
C703 C704
C721
C710
4.7p
R708
56K
10
C708
R716
10
C714
0.0470.047
R706
C716
PRT
Q710
820
470p
470p
47/63
R776
1k
R775
R786
10K
10K
R787
0.1
0.1
C711
C712
1k
C739
R701
47
R702
47
KTC3200/GL/-T
Q711
Q712
KTA1268/GL/-T
R220
1SS133
R768
100K
C723
D790
D726
R790
R769
100/10
10k
1SS133
2.2K
Q790
KTC3199/GL/-T
R792
1K
47/25
C790
CN207
QGB2510J1-10
R793
MAINL
SWL
100K
R795
R794
10k
10k
R798
10
R796
6.8K
R797
20K
Q791
KTC3199/GL/-T
C639
CN217
QGB2510K2-10
Q792
0.1
KTC3203/OY/-T
R675
1k
R676
1k
R607
56K
47/63
C607
1.2K
R605
RY1
QSK0109-001
RY2
QSK0109-001
C609
10P
C613C615
3
MTZ2.4JB
D280
R283
15K
R284
47K
C280
0.22/50
4.7/50
R205
C221
100K
D220
MTZJ9.1B-T2
C222
4.7/50
CN202
QGB2510J1-08
CN203
QGB2510J1-04
2
CN204
QGA3901C1-07
R242
10K
Q240
KTC3199/GL/-T
D223
R209
10K
1SS133
1N4003S-T5
D227
C216
R202
4.7
100/35
D221
D217
KTC3199/GL/-T
R207
C223
MTZJ5.1B
1N4003S-T5
D218
C217
1N4003S-T5
10K
R210
22/50
R203
C218
Q204
3K
Q201
KTA1023/0Y/-T
7.5K
D219
22/50
MTZJ33C
C219
IC303
R303
0.33
R306
R302
2.2
R307
C220
22K
R204
22/50
0.01
STBY
C307
KIA7808API
D316
STBY
C308
10/50
D313
R248
1
R246
22/50
Q371
Q372
D369
1
R247
R249
1
MTZ10JC
C373
0.01
2A02M1
D370
SHEET 1/9 (MX-GT80)
SHEET 2/9 (MX-GT90)
Q373
KRA104M-T
Q374
R389
KRC104M-T
10K
R383
R385
C372
5.6K
R384
2.7K
1
D233
MTZJ11C
C374
D234
22/50
3300/25
2A02M
C253
R217
QGB2510J1-10
5.6V
EP201
QNZ0136-001Z
CN206
9V
8V
CN216
QGB2510K2-10
27K
C214
C212
0.082
0.082
C213
C211
0.082
R218
47K
27K
C215
R215
C204
C202
0.1
C203
47K
R216
C201
C205
0.1
0.1
R361
R366
200
R360
R365
200
KTC3199/GL
R364
1.2K
MTZJ11C
D361
R367
1.2K
Q361
2-4
R363
MTZJ5.1B
330
D360
Q360
2SD2395
KTC3199/GL
Q362
47/16
C360
C361
R368
R362
330
0.01
330
C362
D362
22/50
MTZJ6.8C
Parts are safety assurance parts.
MAIN Signal
When replacing those parts make
sure to use the specified one.
SHEET 3/9
HABC DE FG
Page 5
MX-GT80/MX-GT90
SHEET 5/9 SHEET 5/9
Main section
0.01
-30V
100K
R587
D431
C486
10/35
10K
R997
10K
C586
0.018
680P
C588
QQL0779-001
R594
D588
MTZ3.9B-T2
R557
Q556
22k
R563
BASS1
MTZJ3.9B-T2
C485
10/35
IC481
R998
R586
2.2M
C587
33P
Q586
KTC3199/GL
22
R588
L569
560
C595
1000/6.3
12K
R564
2SC2785/FE/-T
100
R495
BA15218
C487
22k
BASS2
100/10
C589
0.015
0.01
C596
R558
Q557
2SC2785/FE/-T
D432
MTZJ3.9B-T2
R492
4.7k
R496
SMUTE
R434
QRJ146J-4.7X
L571
QQL0779-001
R596
180
R595
4.7K
R491
4.7k
C997
1k
1/50
C488
C996
180
100/6.3
C597
R489
KRA102M-T
10P 10P
R490
C995
100/10
Q483
6.8K
Q589
KTA1271/0Y/-T
Q590
KRC102M
C598
22/50
QQR0779-001
2SC3576-JVC-T
30K
R560
6.8K
MSI
R597
C994
CN11
470P
QGF1205F1-09/13
R886
R776
33K
D593
R777
1SS133-T2
CK
SWFB
18P
C1208
MPX
TUL
TUR
220
RDS_CLK
RDSDA
R433
CN504
1200P
C1209
C1210
C1211
0.01
C1213
CN505
QNN0017-002
C1214
0.01
C556
10/25
CN211
QGB2510K2-09/11
PRT
SWFB
SURR.CTRL
ECO
POUT
-30V
RELAY
FW714
QUM156-18DGZ4
0.01
0.01
JA566
C1212
P2
P1
CN212
0.01
QGB2510K2-08/10
SHEET 3/9SHEET 3/9SHEET 3/9
MAIN signal
CD signal
L546
QQR0779-001
MSI2
10K
R598
1K
R599
1K
L573
Q562
R562
10k
10k
R493
Q481
2SC3576-JVC-T
R494
10k
Q482
2SC3576-JVC-T
TAPE P.B. signal
TUNER signal
SHEET 4/9
CN870
100
R582
2SC2785/FE/-T
0.027
B172
C514
Q571
R581
220k
QGF1205C1-17
R580
C578
C889
0.01
C472
R470
5.6k
IC502
1/50
BA15218
10/25
R468
4.7/50
C466
0.068
C469
20k
R467
10/25
C471
0.27
C470
R579
R510
R469
5.6k
D592
KCMND
MSTAT
TUCE
KCLK
VC3RESET
C576
47/16
100k
C577
47/16
Q573
100/10
C527
R475
C476
200
BA3837
R528
C531
0.0068
IC571
R575
C530
R529
100
BA15218
47k
R536
1.8K
22k
R474
CK
C575
R532
0.1
51K
MPX
MSI2
1SS133-T2
D571
1SS133-T2
R576
D572
1SS133-T2
100k
R577
2SC2785/FE/-T
C528
0.1
R534
C535
100
R537
20k
10/25
2.2/50
22/25
R466
C468
C467
C473
IC466
1k
10/25
R472
C475
C474
1/50
22k
R471
R996
10K
KARAOKE
MRDY
SPISIG
RDSDA/KARAOKE
100p
22k
R530
5.6k
C532
47/16
C526
R473
6.8K
100/10
B311
R431
RECL
RDS_CLK
IC526
BA15218
R526
B312
30k
ECO
B313
RECR
J426
GP1FA550TZ
D426
C426
MTZJ5.1B-T2
C401
220P
CN315
QGF1205C1-10
5
SHEET 3/9
J411
QNN0215-001
1SS133-T2
1SS133-T2
1SS133-T2
D414
1SS133-T2
4
CN661
QGF1016F3-19
C1201
220/10
C1202
0.1MY
CDR
R1202
1k
R1203
1k
CDL
3
SHEET 7/9
D.OUT
VC3RESET
R999
10K
KCLK
MRDY
MSTAT
KCMND
R1206
R1207
R1208
R1209
C1205
R1205
0.01MY
1k
1k
1k
1k
1k
C1206
0.1MY
0.022
C402
220P
D411
D412
C415
2200P
D413
C416
R411
10k
R412
10k
R415
200
R416
200 2SC3576-JVC-T
R888
R887
C501
4.7/50
C1207
0.01MY
C888
2SC3576-JVC-T
3.3k
R501
AUXL
10/35
10/25
C447
C439
C404
C411
C413
C414
R407
C412
CDL
10/35
C441
0.022
2.7k
R403
4.7k
Q411
C1229
100/10
3.3k
R502
PBL
2.2/50
C443
47/16
220p
220p
L566
470/10
R404
4.7k
R401
R402
C403
68k
R413
68k
R414
Q412
QQR0779-001Z
30k
R503
C502
4.7/50
TUR
PBR
TUL
10/25
10/25
2.2/50
C446
C445
C444
10/25
CDR
10/35
C442
C427
R417
R419
R519
R507
C505
R426
1K
1K
Q401
2SC3576-JVC-T
Q402
R420
10k
100k
C510
4.7/50
30k
R508
0.27
AUXR
10/25
C440
56
PBMUTE
2SC3576-JVC-T
R405
2.2k
10k
R418
R518
100k
C504
C509
0.0082
270k
C1227
C999
100P
C998
100P
100/10
10/25
C437
C436
AUXL
RECL
RECR
IC501
100/10
R437
RECL
RECR
MSI
R406
AUXR
2.2k
BA15218
C507
10k
R436
PBL
PBR
R1233
1k
R511
100
VOLDA
C438
D.OUT
AUXMUTE
0.015
1SS133-T2
R505
100k
R504
R994
D501
100k
0.01
10K
KRA102M-T
R421
22k
22K
R512
C887
R513
0.01
100
R583
Q572
2SC2785/FE/-T
Q413
R410
22k
C503
D502
0.22
R517
C508
R523
8.2k
56K
R524
1.8K
1SS133-T2
R506
22K
220k
220k
2
IC436
TDA7439
B150
B108
2.2/50
10/35
2.2/50
0.018
0.022
0.1
0.1
C449
B151
R443
100k
C433
0.01
0.022
C886
R444
100k
C432
0.001
1
C448
B154
C450
C460
C458
C454
C456
2.7k
5.6k
R438
R439
0.1
C453
5.6k
R440
C455
0.0056
0.0056
0.1
0.022
0.018
10k
R442
C457
C459
C461
C462
2.7k
R441
VOLCK
C1228
R572
47k
QQL0779-001
D586
MTZJ6.8C-T2
R541
22k
100
R432
30k
SPISIG
QGF1205C1-17
Q999
KRA102M-T
100/6.3
D434
MTZJ5.1B-T2
L567
MTZJ6.8C-T2
C594
470/10V
QQL0779-001
C593
100K
R593
R1233
CN871
R995
R571
47/16
33K
C534
270
D587
R435
PBMUTE
BASS1
BASS2
10k
PRT
POUT
VOLCK
VOLDA
RELAY
R585
47K
Q585
R487
R488
C585
L568
QQL0779-001
QQL0779-001
C481
C482
KTC3199/GL
1/50
L570
R531
15k
100
R498
C484
R486
C483
D585
1SS133-T2
C592
R485
2.2/50
C571
L572
C489
100/10
ABCD E F G
2-5
Page 6
MX-GT80/MX-GT90
FL & systm control section
1.2K
R993
S999
R997
KEY2
10K
R811
R829
KEY3
10K
R812
Q1022
KRA111M-T
R1043
1.5K
S996
R995
2.2K
S995
R996
2.7K
S997
S998
R998
1K
C816
47/16
56K
R816
56K
R815
10K
KEY4
20K
10K
10K
R822
R821
10K
ECHO1
ECHO2
R813
220
R1042
FL801
G6G7G8G9G10
G5
100K
R870
R872
15G
16G
10K
R828
1N4003S-T5
D806
G3
G4
100K
100K
R868
R866
13G
14G
10K
10K
R882
R883
1SS119-02-T2
QLF0074-001
G2
G1
100K
100K
100K
R859
R857
R826
3G
2G
1G
10K
R881
1N4003S-T5
1SS119-02-T2
D801
D803
Q890
R890
R839
R854
D805
R838
R855
R820
R819
R851
10K
R817
D802
1SS133-T2
KRA102M-T
P10
Q908
100K
R801
330
1K
1SS133-T2
1K
1K
1K
1K
10K
R818
P22
P20CKP21
Q879
2SD1991A/RS/-T
R879
P8
1K
1K
5.6K
R814
L803
QQL29BJ-100Z
D804
1SS133-T2
C803
470/6.3
KRC102M-T
Q907
P16
P17
P18
P19
2SD1991A/RS/-T
Q809
R873
100K
17G
10K
R841
P15
P13
P14
2SD1991A/RS/-T
100K
MSTAT
KCMND
C804
470/6.3
P12
Q810
R871
KCLK
P11
16G
P9
P10
2SD1991A/RS/-T
100K
1K
1K
1K
R847
R846
R845
DATA
0.001
C805
0.1MY
C1034
Q811
R869
15G
C820
CK
C808
L813
QQR0779-001Z
100/10
C1035
Q812
2SD1991A/RS/-T
100K
IC810
MN101C35DEA
1.5MY
C821
0.01
QAX0283-001Z
33P
MTZ5.1B-T2
D1021
P1
P2P3P4P5P6P7P8
L806
QQL29BJ-100Z
R867
100K
14G
2G
1G
X801
Q813
2SD1991A/RS/-T
R865
13G
6G
5G
4G
3G
KEY3
KEY2
KEY1
33P
C809
R1031
20K
C1036
100P
Q858
2SD1991A/RS/-T
R858
100K
3G
10G
9G
8G
7G
SLCKEY2
SLCKEY1
KEY4
R1033
8.2K
R1034
10K
C1037
0.01
R1035
2SD1991A/RS/-T
100K
13G
12G
11G
MRDY
SPIDTI
C1038
4700P
33K
Q816
R856
100K
2G
Q817
2SD1991A/RS/-T
R825
100K
G2
1G
14G
15G
16G
17G
R849
INH
D831
MTZJ5.1B-T2
IC902
BU9253AS
C817
C815
22/50
2SD1991A/RS/-T
RA802
G1
G1
R843
R850
R895
R893
R824
R823
1K
C831
C832
0.01
0.01
G2
R848
C1040
0.01
C1041
3300P
22/50
4G
G3
D832
MTZJ5.1B-T2
C1045
2.2/50
5G
330
220
1K
1K
1K
1K
R1038
R1039
C1042
L815
6G
R840
1K
4.7K
10K
22/25
QQR0779-001Z
9G
8G
7G
10K
R827
C823
0.33MY
C1039
0.01U
R1032
C1043
C1044
QRB169J-104
10G
12G
11G
10K
20K
R1037
15K
0.47MY
0.01u
R1040
G13
G14
VC3RESET
SLLCE
EXTCE
VOLCK
FVOLDA
ECON
TAPELED
PRT
RDS_CLK
SOUNMODE+
PHOTOB
PHOTOA
REMIN
SPI_B
SPI_A
RDS_DATA
AUXMUTE
BASSVOL-
BASSVOL+
RST
SLCKEY1
10K
R808
R1036
3.9K
20K
R1041
2.7K
G16
G15
KRA111M-T
R1044
SLCKEY2
10K
R807
Q1021
5.6K
C1046
KRA111M-T
Q1023
1K
R1045
KEY1
10K
R810
1/50
GPIU271X
IC951
C836
10/25
G15
G13
G14
G16
IC812
2.2/50
P78PP9
L872
D860
10P
QQR0779-001Z
EXTCE
VOLCK
VOLDTA
VSS
C838
0.001
MTZ6.2JC
D815
CN316
QRB169J-104
P11
P12
C857
C873
R878
C874
C875
22
R862
R151
220
D816
MTZ6.2JC
SLCCE
G17
P13
P14
22/50
0.22/50
100K
0.1MY
0.1MY
0.22/50
R861
10K
Q860
KTC3199/GL
C801
0.01MY
DATA
P16
P15
R877
10K
C872
R860
680k
L801
QQL29BJ-100Z
R905
SLCKEY1
100
L-115XSRD-D-T
R961
5
QGF1205F1-17
CN860
MSI
4
3
2
SHEET 1/9 (MX-GT80)
MPX
INH
SMUTE
TUCE
VC3RESET
KCMND
MSTAT
KCLK
DATA
CK
SPI-IN
SHEET 4/9SHEET 4/9
MRDY
RDS-DATA/KARAUKE
RDS-CLK
ECON
PRT
VOL-CK
VOL-DATA
RELAY
AUXMUTE
BASS2
BASS1
PBMUTE
SURROUND
CN861
Q877
C233
KRA102M-T
Q878
KRC102M-T
R234
0.1MY
R233
QGF1205F1-17
QUM153-10DGZ4
FW230
SHEET 2/9 (MX-GT90)
R911
1K
D964
1S133-T2
D962
S964
Q961
KRA102M-T
S963
R962
10K
KRA102M-T
R842
QQR0779-001Z
10K
220
R889
220
R888
220
R887
220
R886
R885
220
10K
R912
RELAY
HP
1000p
R964
C835
3.9K
5.6K
R963
10K
R965
R921
REMIN
L812
D812
1SS133-T2
10K
R876
1K
R844
R968
10K
Q843
RESET
INH
KIA7042AP-T
IC830
1K
B185
R884
B186
AUXLED
SMLED
CDLED
BASSLED
TULED
ECHO1
ECHO2
RELAY
BASS2
BASS1
PBMUTE
SURROUND
POUT1
VDD
C889
4.7/50
L805
QQL29BJ-100Z
SPI_A
SPI_B
SPIDTI
SPI_IN
C837
100/10
Q875
RA801
P1
R864
KRC102M-T
P2
10K
BU2092/F
P3
P4
P5
P6
BA3835S
1SS133-T2
C862
4.7/50
IC811
C940
QGF1210G1-09
100K
100K
R836
R837
P17
G17
Q905
100K
PHOTOB
SLCKEY2
L802
100K
100K
R834
R835
P19
P18
Q906
KRC104M-T
PHOTOA
100K
R833
P21
R906
100K
G12
G11
QQL231K-220Y
100K
100K
100K
R831
R832
R891
P10
P22
KRC104M-T
100K
100K
100K
R874
R880
17G
P8
TUCE
SMUTE
SEARCH-LED
CD1LED
CD2LED
CD3LED
R_SEARCH
MSI
MPX
INH
F_SEARCH
VOLVOL+
SOUNDMODE-
D807
SHEET 3/9
R994
R894
100
R970
SHEET 8/9
2K
QUM027-18Z4Z4
R897
QGF1210G1-24
HP
TULED
BASSLED
CDLED
SMLED
AUXLED
BASSVOL+
BASSVOLSMODESMODE+
TAPELED
VOL+
VOL-
2K
R991
FW915
CD1LED
CD2LED
CD3LED
CN911
QGD2503F1-07
R902
10K
CN880
R992
SHEET 6/9SHEET 6/9SHEET 6/9
Parts are safety assurance parts.
1
2-6
When replacing those parts make
sure to use the specified one.
SHEET 5/9
HABC DE FG
Page 7
MX-GT80/MX-GT90
Front section
IC901
R1068
20K
330P
R1067
R1021
4.7k
R1022
4.7k
C1065
56
C1064
NJM4580L
150P
150P
C1022
C1023
R1066
4.7/50
4.7M
C1063
MTZJ2.4B-T2
1000p1000p
1SS133-T2
100
R1065
102P
C1021
D1022
TW800
QUB220-15DMHP
D1061
C1062
100/10
R1064
1.5k
R1063
390
R1062
12K
C1061
220/10
J1021
QNS0184-001
J1022
QNS0184-001
R1061
10K
FW915
QUM027-18Z4Z4
SHEET 5/9SHEET 5/9
S915
S916
S917
R916
R917
200
R918
D918
1K
1K
Q918
KRC102M-T
5
QUM027-13DGZ4
FW901
QSW0911-001
C901
0.01
JS901
C902
68
R904
D904
D905
0.01
R919
D919
L-115XSRD-D-T
Q919
S901
R908
5.6K
S902
L-115XSRD-D-T
Q901
KRC102M-T2
200
L-115XSRD-D-T
KRC102M-T
Q920
R920
D920
200
L-115XSRD-D-T
KRC102M-T
VR901
QVQ0299-B54
C1067
SHEET 4/9
C1068
0.22/50
2.2/50
R1071
4.7K
R1069
1K
Q1061
2SD2144S/VW/-T
560
R1070
C1066
4
68
Q956
C961
0.01
68
R954
D954
L-914SRD-T
D943
Q954
KTA1267/YG/-T
QQL231K-470Y
L1001
QQL231K-470Y
C1001
3900p
R956
D957D956
D953
D942
L1002
C1002
L-115XSRD-D-T
KTA1267/YG/-T
68
R953
L-914SRD-T
Q953
KTA1267/YG/-T
3900p
JS962
QSW0862-001
S950
S949
S948
S947
S946
S945
S944
J1001
QNS0183-001
222P
D1003
MTZJ2.4B-T2
C962 C963
0.01 0.01
C1070
1k
R950
R949
1.2k
1.5k
R948
R947
2.2k
2.7K
R946
3.9k
R945
R944
5.6K
R943
10K
C935
0.01
TW801
QUB220-15DMHP
JS956
QSW0912-001
0.01
2K
1.2K
1.5K
2.2K
2.7K3.9K5.6K
C956
S951
S936
S937
S938
S939
CN870
R929
3
SHEET 5/9
R930
10K
S952
S942
S943
S931
S932
S933
S935
R952
R955
R931
R932R933R935
C957
0.01
R951
R936
R937
R938
R939
R942
D961D960 R960
L-115XSRD-D-T 68
Q960
KTA1267/YG/-T
2K
1.2K
1.5K
2.2K
2.7K
3.9K
C960
0.01
68
R940
D940
L-914SRD-T
D945
Q940
KTA1267/YG/-T
JS960
QSW0911-001
68
R941
D941
L-914SRD-T
D944
Q941
KTA1267/YG/-T
2
L1003
QUB023-33DGZ4
FW713
C1004
1000p
QQR0779-001Z
C1005
1000p
C1006
1000p
SHEET 3/9
1
ABCD E F G
SHEET 6/9
2-7
Page 8
CD serbo section
MX-GT80/MX-GT90
CN805
CN855
QGB2012K2-10
M851
MSN-5D257A
SW1
5
SW2
SW3
SW4
SW5
SW6
CN804
M852
MSN-5D257A
CN854
QGB2016K1-07
CN851
NI
4
C001
1
HDU-100
VR001
2KB
3
P001
HQMV7102-015
CN601
QGF1016F3-15
F+
T+
TF-
W601
R636
2
CN801
P011
QGA2001F1-06
E406784+001
ESB110-005
E406783-001
QGA2001C1-06
1
CAM0
R887
1K
CAM1
R886
1K
CAM2
R885
1K
CAM3
R884
1K
CAM4
R883
1K
CAM5
R882
1K
CAM6
R881
1K
CAM7
R880
1K
L853
10
C859
C860
1SSW
R861
1K
2SSW
R862
1K
3SSW
R863
1K
3MSW
R866
1K
2MSW
R865
1K
1MSW
R864
1K
F
E
B+D
A+C
R618
15k
A+C
F
B+D
E
10
R634
FM-
SM+
R832
SM-
10K
FM+
R831
150
LM-
1/16
LM+
L854
10
RM-
1/16
RM+
C602C601
R621
R620
R619
15k
C633
0.022
C632
1/16
R632
12
560K
120
R635
10
2SA1037AK/RS/-X
560K
Q631
R633
LA6541-X
IC801
0.0010.001
R624
IC601
AN22000A
100/6.3
C624
NI
C623
R631
2.2
C631
10/16
R611
0.022
0.022
0
1/16
390P
C812
SM- T-
C604
C603
R609
3.3K
R605
C607
R625
C611
NI
T+
390P
C814
SM+
C853
0.01
D851
MTZJ5.6B
LMUP
LM+
Q842
NI
R842
4.7K
NI
NI
8.2k
8.2k
0
R623
R622
C612
1/50
0.027
C614
0.1
C613
R610
NI
22K
C619
F+
390P
C813
FM+
R613
F-
390P
C811
FM-
C610
2.2K
C620
47p
R617
NI
C802
C801
0.0068
R801
2.7K
LMDOWN
R603
120k
0.0047
C615
0.027
NI
0.012
R813
NI
C816
NI
C605
R812
1.5K
C815
2.2/50
R601
R602
R607
R606
0.01
C616
R802
R808
R803
R804
R805
R806
R807
C606
C618
NI
1.2K
LM-
150P
56P
R616
R614
22k
R855
NI
0
62k
NI
Q632
NI
220K
270K
R608
150k
R641
C642
270K
2200p
R604
C617
330P
R615
NI
2.2K
220K
3.9K
C821 C822
1/16 220/10
27K
R809
1.2K
13K
24K
C621
TP1
RM+
R642
IC852IC851
LB1641LB1641
R811
10k
R281
R280
1K
22K
R263
OUTL
OUTR
22K
R264
R649
/RST
1K
R651
C663
68K
R662
STAT
1K
R652
0.022
1K
DMUTE
C664
120K
R663
0.022
24K
R695R696
24K
QAX0360-001Z
P.ON
SQCK
SUBQ
1K
R653
68k
R685
R664
1.5M
C665
R668
R691
0.0068
0.0068
R692
C653
0.1/25
MN662748RPM
330
0.15
10K
C693
C694
10K
L851
10/16
R856
C852
10
0
0.1/25
C855
TRV
TVD
ECM
ECS
KICK
TRD
FOD
FBAL
TBAL
FE
TE
RFENV
VDET
OFT
/RFDET
BDO
LDON
WVEL
D667
R667
KCLK
SUBQ
R656
SQCK
1K
KCMND
R256
MSTAT
1K
MCS
R277
1K
R276
1K
TP6
R275
1K
TP5
R274
1K
TP4
TP3
22K
22K
R262
R261
R682
1K
C676
0.1/25
R661
39k
1M
R683
470P
C661
ARF
4.7
0.1/25
100/6.3
NI
C680
C679
0.01
C854
RMUP
RMDOWN
RM-
TBAL
FBAL
LDON
GCTRL
0
FE
TE
C641
0.022
C608
820p
390k
VDET
1
TP2
/RFDET
C622
0.047
OFT
BDO
RFENV
ARF
WVEL
TRD
KICK
FOD
ECM
ECS
TVD
TRV
TP9
R290
IC651
C251
10P
1K
C666
R289
NI
1K
R288
TP10
TP7
TP8
1K
1K
R258
22K
R265
IC251
UPD780024AGKB25
X251
C252
10P
MLD
MCLK
MDATA
100
R654
560k
R684
2.7K
5.6K
R669
0.047
R672
1
C668
C667
C672
0.33U
R703
R701
820
IC652
BA15218F-XE
R705
5.6K
IC652
BA15218F-XE
R702
820
R704
3SSW
3MSW
2MSW
1MSW
1K
1K
R655
R254
STAT
/RST
MRDY
DMUTE
270
QAX0413-001Z
R665
NI
C671
C651
12P
10K
C691
390P
C695
R706 R707
2K 6.8K
C692
10K
390P
2SSW
1K
R659
MCLK
1SSW
1K
R658
MDATA
X651
12P
0.047
C696
C652
10/16
R260
R871
R872
R873
R876
R875
R874
C669
2.2K
220/10
R709
R708
R657
MLD
C655
OUTR
R670
100
C656
0.1/25
C699
220/10
R710
22K
22K
22K
22K
22K
22K
1K
/P.ON
0.1/25
R690
10K
OUTL
100
22K
22K
22K
22K
22K
22KNI22K
22K
R888
R889
R890
R891
R892
R893
R894
R895
CAM7
CAM6
CAM5
CAM4
CAM3
CAM2
CAM1
CAM0
RMDOWN
R854
C657
1K
1K
1K
1K
220/10
C677
R852
R853
R851
0.1/25
220/10
C673
0.1/25
R666
RSEL
C253
220
SBCK
SUBC
RMUP
LMDOWN
LMUP
C254
47/10
SBCK
SUBC
RSEL
P.ON
/P.ON
R291
1.2K
R292
R294
10K
KCMND
MSTAT
MRDY
KCLK
MCS
LOUT
ROUT
R689
10K
1K
Q291
2SB1357/EF/-T
R257
R253
R284
0.1/25
C658
R255
R686
R687
R688
R293
1K
1K
1K
1K
QGF1016F3-19
NI
NI
NI
NI
C291
47/10
CN651
CN652
SHEET 4/9
NI
CD signal
220
100
LOUT
ROUT
SHEET 7/9
2-8
HABC DE FG
Page 9
MX-GT80/MX-GT90
Head amplifier section
5
4
3
2
SHEET4/9
Parts are safety assurance parts.
1
When replacing those parts make
sure to use the specified one.
ABCD E F G
SHEET5/9
TAPE P.B. signal
SHEET 8/9
2-9
Page 10
Tuner section
MX-GT80/MX-GT90
TU1
5
*R1
R8( D2)
D1
C1
C3
1SS133-T2
1SS133-T2
1SS133-T2
4
J1
QNB0014-001
D3
D4
1SS133-T2
0.022
3
C11
0.1
10/16
R15
3.3k
*R5
CF1
VCF2L3B-105Z
R13
0.001
C25
100/10
C15
12P
X1
C16
12P
R17
C7
R3
*R4
220K
Q1
C2
R2
L1
QQR0796-002
10K
C4
*R6
C12
0.01
2SC2814/4-5/-X
C13
12P
R14
100K
R16
4.7K
C14
100/10
68( 1/4W) F.RES.
0.01
330
0.047
IC2
QAX0402-001
150P
C22
150P
C23
150P
C24
0.0039
R23
1.8k
R10
2.2K
LC72136N
C17
C18
0.47/50
22/16
3.3K
C52
C53
0.27
C51
1/50
C57
0.001
R41
LA1838
IC1
CF2
VCF2L3B-105Z
C54
0.047
C20
1000P
0.047
C19
R26
2.2K
330
R25
4.7k
R22
1K
1K
1K
R18
R19
R20
R29
10K
R21
5.6K
Q5
DTA114YKA-X
R30
1.2K
10K
R24
R27
R28
10K
10K
C6
0.001
D11
T1
QQR0793-001
1SS133-T2
C48
0.0022
C49
470P
C58
C50
0.047
22/16
C32
0.047
C31
22/16
C21
0.022
0
R60
24K
R40
C60
C47
C46
1/50
0.027
0.047
C33
47
R34C34
0.022
0.047
C35
5.6k
R35
CF3
QAX0610-001Z
R33
330
R38
C45
10/16
56K
56K
C44
10/16
R39
*C43
*C42
C41
10/16
C40
10/16
R37
10K
R36
3.3K
1/50
0.22/50
C38
C37
1/50
C39
C36
1/50
C30
100/10
R32
1K
C26
0.001
C27
0.001
R31
1K
2
DATA
SHEET 4/9
GND
QGF1205F1-09
Parts are safety assurance parts.
When replacing those parts make
CN1
5.6V
LOUT
ROUT
STEREOCE9V
CK
sure to use the specified one.
FM/TUNER signal
AM signal
SHEET 9/9
1
2-10
HABC DE FG
Page 11
MX-GT80/MX-GT90
Printed circuit boards
Main board
C403
10
CN315
R402
17
FW401
CN250
NC
1
C402
L401
17
1
1
R777
FT112
FT111
R1001
FT512
FT511
FL2
3
R1002
C888
CN871
CN870
1
C995
R998
R886
R433
C587
R586
C586
E
B
D585
E
17
1
CN505
R588
C589
R587
R435
FLBIAS
5.6V[SUBTR.]
AUXMUTE
VOLDATA
1
NCNCNC
Q586
C588
B
A.GND
PBMUTE
BASS1
BASS2
RELAY
VOLCK
CN871
5
PON
T001B
Q585
C585
-32V
5.6V
SURR.
POUT
10V
R585
R997
D593
L546
T001B
9V
MIC
PRT
S1
S2CTS2S1S4
1
CN214
Transformer board
S4
7
TW201
10V
-9V
5.6V
3.3V
9V
8V
PRT
SWFB
SURR
ECO
CN211
5.6V[SUB.T]
C509
C443
C-OUT
CN504
R492
C462
R490
C461
R437
VGND
IC481
VGND
D502
R502
C502
C997
CN212
CN212
A.GND
M.GND
POUT
D.GND
1
C1229
D501
C507
IC501
C489
R488
C486
C889
C436
R436
C444
3.3V
3.3V
V5V
V5V
NC
NC
NC
19
CD.GND
R507
R432
R467
VDGND
VDGND
L571
10
TW4
-30V
VGND
VDGND
RELAY
C505
L569
FLBIAS
R469
C476
R474
R485
R487
C487
R508
C504
R498
R503
R468
10
TW7
TUR
AGND
RDSCLK
RDSDA9VDGND
13
C483
C484
R486
C475
C472
R431
R470
C466
C471
19
CN504
NCNCNCNCNC
C1228
C1212
L570
D434
C469
R495
C468
DGND
R471
IC466
R466
TUL
C470
R1209
C1211
TUNER+B
C481
C482
VC3RESET
SDATA
TUCE
CN11
CK
MPX
1
R996
C474
C473
C467
KCMD
MSTAT
FW401
MRDY
KCLK
R1206
R1208
R1207
TW5
CN505
C1210
15
CN661
R472
5
1
R1203
R1204
R473
R475
R1205
B132
MSTAT
KCMND
1
MRDY
R1201
C1206
C1207
1
KCLK
MC3
CN315
MGND
M+B
MSI
PBR
AGND
PBL
SW8V
RECR
NC
RECL
VC3RE.
CN661
D.OUT
C1203
BU+5
CN211
R420
C593
L567
11
1
R572
R571
C571
Q573
C530
R534
L572
R526
C528
R443
R537
C526
C535
R410
R575
IC526
D432
D431
R564
R563
B
B
E
B
E
R444
C440
C447
R414
R411
C411
R413
L568
D588
C1209
C1208
C1213
R528
R532
C527
C534
61MAINR
Q483
E
Q413
B
R421
R412
C412
R426
D586
D587
B
E
C532
R530
C531
R529
FW714
A.GND
MAINL
SW.GND
SW
SMUTE
B
Q412
J411
D412
C415
D411
C426
C427
C594
11
TW3
5
R536
R541
4
R419
Q411
BE
R415
R417
C413
R418
C414
R416
C416
J566
E
D414
D413
J426
D426
R593
3
2
C448
C439
C596
R557
C449
C595
Q562
C450
C592
R594
IC571
IC502
1
TW12
C578
C576
R576
C575
TW10
R496
Q557
E
C556
Q556
E
R531
R560
B
R438
R439
C460
C445
L573
C597
R596
R595
C598
R523
R577
D571
1
C446
R562
C577
C514
R558
R579
C458
R506
C1227
R493
C503
C996
B
R580
R597
FW714
C454
C456
D572
R524
R581
B
E
C508
R510
R517
R494
C453
C441
R599
Q571
B
R505
C1214
Q590
E
R491
B
R513
R512
C455
1
TW6
R582
E
R583
Q572
B
R518
C510
R511
R519
R504
R501
C501
C485
6
R489
Q481
EB
Q482
E
R440
R441
C457
C459
R442
IC436
C438
C437
C442
C998
1
C999
Y-OUT
NC
TW1
Q589
TW2
E
R598
1
BU+5
1
10
17
DGND
1
R1202
R888
C1204
C433
DGND
CDL
AGND
ECON
RDSCLK
D.GND
RDSDATA
MRDY
SPIIN
SDATA
KCLK
MSTAT
KCMND
VC3RESET
TUCE
SMUTE
MSI2
CN870
R887
INH
MPX
AGND
C886
C432
CD+8V
CD+8V
MGND
CDR
MGND
19
FT522
FT521
FL1
1
R993
C404
R406
C401
R403
R404
B
E
Q401
R407
C887
R405
R401
R994
TW11
5
TW8
1
TW9
Q999
E
R776
C994
CN11
9
13
B
Q402
E
CK
R995
B
L566
C1205
C1202
C1201
R999
19
1
ABCD E F G
2-11
Page 12
MX-GT80/MX-GT90
Regulation & amplifier board
Regulation board
D211
D213
D212
5
D214
C212
C213
C211
R209
R202
C202
D202
D204
R217
C221
C214
D220
R205
C222
D217
D227
D223
C216
C217
R204
C204
R203
Q201
D218
C218
C219
R215
10
FL1
FL2
RELAY
INH
-30V
CDD.GND
CN202
D219
C220
A.GND
D.GND
M.GND
POUT
R242
D221
1
R207
C223
R210
Q240
C281
R283
Q204
1
D280
CN207
11
10V
-9V
3.3V
1
CN207
RELAY
10
B2
MAINR
SWLGND
MAINL
MRGND
SWRGND
SWR
MLGND
SWL
1
ECO
SWFB
PRT
5.6V8V9V
SURRCTRL
5.6V
CN201
C280
R281
R284
10
D905
R216
R218
D234
C215
C253
C205
14
CN205
1
M.GND
MAINR
14
MAINL
PRT
-VL
8V
SURR
POUT
SWL
SWR
VHVLP.GND
-VH
1
CN205
1
EP201
CN204
7
4
Preset/tuning
switch board
1
1
FW901
DGND
SEARCHLED
NC
7
R901
R.SEARCH
F.SEARCH
5V
KEY21
FW901
R249
R247
B
R904
7
Q901
C901
R246
C203
D203
D201
R248
E
C902
D904
C201
D233
JS901
Amplifier board
1
IC602
R908
3
S902
T001C
R604
C604
R676
SMUTE
2
S/WIN
A.GND
MAINL
A.GND
MAINR
R736
R734
B
Q737
C625
Q734
BE
Q736
B
E
T001C
C606
S901
C608
R606
R681
R601
R658
Q604
B
E
C639
C622
Q613
R682
R680
Q680
B
R735
R733
R659
A.GND
HPR
E
Q735
Q733
E
FAN[-]
HPL
E
E
FAN[+]
E
CN705
R668
R796
R667
R792
Q612
B
R620
C614
B
R618
D620
Q602
B
C602
R623
B
R795
R797
R798
R616
R793
B
R655
R654
C610
R608
R674
C618
C616
L602
R614
R
R640
C790
Q792
E
E
Q790
E
B
Q791
R794
D619
B
Q601
R675
R653
R617
C623
C601
R621
R619
R603
R652
E
C603
C613
C612
R615
C615
R657
C621
R613
R725
R791
C713
D791
C707
C715
C726
R762
C705
C709
R707
L701
R
R754
R718
Q702
C730
R720
R740
R790
E
Q726
R730
B
C605
C609
R607
L702
C683
C607
C739
R605
L
L601
C704
R704
R703
Q603
C703
D622
R602
C710
R708
R776
R716
C721
C722
R775
C708
C706
R714
C716
R766
R705
C714
R726
D704
D724
R774
R724
C711
E
L
R753
E
B
R719
D726
D790
R727
Q710
B
E
Q701
R787
B
R761
R717
D719
R722
Q711
E
B
C723
R768
R769
EB
R729
Q727
C729
Q728
B
R778
1
D703
D723
R723
C712
Q713
E
R777
R701
R702
C731
E
E
B
R721
D728
R786
Q712
R728
CN215
1
Q374
R383
B
-VH
14
VH
VL
A.GND
-VL
12V
M.GND
PRT
SURR
POUT
SWL
SWR
MAINL
MAINR
1
CN206
E
B
R389
Q373
BE
T001C
R385
D369
B
R384
Q371
4
S4
D.GND
CN206
1
10
8
B
C372
E
E
Q372
C373
NC
GND
ECO
5.6V
CN203
M.GND
1
A.GND
C374
POUT
8V
9V
10V
3.3V
5.6V
8
10
D370
1
2-12
HABC DE FG
Page 13
MX-GT80/MX-GT90
Front board
T001B
R205
L815
C815
1
VOL+
TAPELED
VOL-
SMODE+
SMODE-
BASSVOL-
BASSVOL+
KEY4
R884
IC830
D816
5
R871
R874
R873
4
B
B
68
R872
E
R840
R827
B
E
Q811
R869
R964
D815
C840
R848
R843
R865
R866
R858
R859
D832
R826
R857
R969
R870
R868
R867
B
B
E
E
Q810
Q809
Q858
B
Q813
E
R837
Q812
E
C817
KEY41
C832
R895
KEY3
C862
R856
R893
KEY2
R825
C221
KEY21
R864
1
R877
R850
D220
KEY32
18
B
B
AUXLED
RA802
R899
SMLED
C872
R824
C875
,CDLED
R823
L806
BASSLED
TULED
C874
IC812
R862
R849
50
51
Q817
Q816
E
E
DGND
D860
L805
C222
R151
24
ECHO2
ECHO1
AGND
MIC
5V
HP
9V
CN880
L807
C873
R878
C857
9
R860
R861
10
B
Q860
E
26
25
75
76
3
R962
T001B
1
S4
Q301
D301
B
E
Q961
C836
S964
R921
R965
R963
2
S963
D962
C835
IC951
R961
D.GND
R301
M.GND
A.GND
E
RY301
POUT
CN216
C362
R366
C309
D314
C310
9V8V5.6V
D.GND
A.GND
1
Voltage board
Display & system control board
R817
R818
L802
R968
B
R302
C804
R303
C305
C307
R803
D313
R879
R820
D307
R845
Q304
E
C810
R839
D316
E
E
Q361
D804
E
C809
R841
D831
E
E
3.3V
Q303
OUT
IC301
6V
OUT
IC305
9V
OUT
IC303
8V
5V
R801
IC304
C813
RA801
10
OUT
C360
R361
R365
R364
C306
L803
C803
R806
1
100
IC810
D360 D361
C812
E
D312
Q802
C821
C805
X801
R819
R890
B
Q890
B
Q879
D311
E
Q302
D308
C302
C301
C312
D315
C311
C308
R362
R368
C361
R363
Q362
CP302
L872
X802
10V
3.3V
10V
D362
R367
R360
CP301
R846
R891
R804
C808
Q360
R894
Operation swicth board
L1003
TW801
C1006
R934
DECKA/B
R962
R1062
R1071
R1069
D1062
S935
S933
S932
S931
S942
S943
S952
C1021
TW800
1
FW713
TIMER/CLOCK
PROGRAM
RANDOM
REPEAT
REVMODE
STOP
RECSTART
24
R1061
J1021
R1021
J1022
MIC2
R944
R948
R949
R950
R963
R964
MIC1
J1001
L1001
MODE
DISPLAY
+
SELECT
-
1
CN890
22
R1022
C1005
L1002
C1002
C1001
C1004
S944
R943
EON
PTY/
R945
S945
S946
R946
S947
CDREC
S948
R947
EDIT
S949
DUBBING
S950
C1022
C1023
FORUSERIES
EXCEPTUP&UY
24
22
R994
Q801
C806
C807
R802
R847
C831
R851
R854
D805
R880
R836
B
R835
3
C233
D873
E
B
Q875
E
C822
B
C889
R814
R881
R838
R855
R831
R832
R833
R834
FL801
R882
R811
R991
R883
FW230
R812
R233
1
R234
R822
R828
C825
1
R813
1
C838
19
B
E
R842
18
C837
R896
R844
R810
L813
L801
R992
IC811
E
Q878
B
Q905
E
7
CN911
CD eject
CN880
D812
R912
R911
Q877
EBB
D801
D806
R906
B
Q906
E
1
board
FW915
R915
C651
R916
R918
Q918
T001B
1
BE
C653
R651
D650
R917
S916
R919
D919
1
J81
C732
EB
Q919
CD2LED
CD3LED
S915
D918
E
S/WL
MLGND
S/WRD
SWRGND
MAINL
MRGND
MAINR
SWLGND
RELAY
C652
1
R650
C654
CN217
B2
10
C734
CD1LED
RY2
D920
D.GND
K12
R732
7
S917
R920
FW915
5V
K11
7
C735
R731
Q1022
B
R1043
Q1023
EB
R1044
E
R1045
Q1021
B
10
L812
R853
R876
D803
D807
D802
R807
R808
R905
R815
R816
SLCKEY2
DGND
R902
C736
C737
R998
1
SLCCE
5V
DATACKSLCKEY1
R897
S998
9
PHOTOA
PHOTOB
E
Q920
B
C733
CN316
RY1
E
C1035
1
R887
R1041
C1040
D1021
R1040
R1039
IC902
18
C1039
C1037
C1036
R1035
C1034
C
E
B
R885
R886
R888
C816
C823
B
E
R993
R997
S999
T001B
JS960
D956
T001B
R1032
9
R1038
10
R1034
C1038
E
Q908
Q907
B
R996
7
KEY215VR.SEARCH
F.SEARCH
SOUNDMODE
C1043
C1045
R1031
R1033
R1042
R889
FW915
R970
R995
S997
1
SEARCHLED
DGND
KEY22
D957
Q956
C1044
1
CN860
B
R1037
E
17
17
1
CN911
,
R1036
CN861
1
C961
CD3LED
R956
C960
CD2LED
S995
Q960
FLBIAS
-32V
AGND
MIC
9V
5V[ST]
5V
SURR
PBMUTE
BASS1
BASS2
AUXMT
RELAY
POUT
VOL-DATA
VOL-CLK
PRT
ECON
RDSCLK
DGND
RDSDT
MRDY
SPI_IN
CK
SDATA
KCLK
MSTAT
KCMND
C3RST
TUCE
SMUTE
INH
MPX
MSI
CD1LED
D960
T001B
CN890
VOL-
1
VOL+
TPLED
SMVOL+
SMVOL-
BASSVOLBASSVOL+
KEY4
KEY42
R960
C957
AUXLED
BSSLED
22
24
D961
KEY3
KEY2
KEY21
KEY31
SMLED
CDLED
TULED
DGND
MIXIN
AGND
7
1
DGND
KEY11
KEY1
5V
S996
C956
JS956
BE
VOLUME
SUBWOOFER
R954
R930
5V
HP
9V
R1064
D941
R940
D940
R941
D954
R953
R1065
R1063
8
D1061
R1068
IC901
1
B
D944
B
D943
B
D953
VOLUME
E
C1066
C1068
Q940
S951
Q941
Q954
C1065
FW713
D945
E
E
E
D942
B
JS962
R1066
Q1061
R942
C1062
1
HPL
S937
S936
R951
C1063
AGND
S939
R936
Q953
S938
B
HPR
R937
E
R1070
R939
R961
C1067
C1067
C1061
C1064
STOP
D1003
AUX
FM/AM
R938
CD
C1070
C935
R935
R932 R933
R931
TAPE
R955
R952
R929
C962
C963
MICLEVEL
VR901
R1067
Speaker terminal board
ABCD E F G
2-13
Page 14
MX-GT80/MX-GT90
CD servo control boad
L853
C859
C860
5
C254
R892
R888
R880
R893
R889
R881
R894
R890
R882
R895
R891
R883
R854
R884
R885
B635
R657
R265
R258
TP10
C253
B642
TP8
4
R608
R607
R614
R641
R604
C641
C606
C642
R642
R603
C605
R605
C607
R622
C604
C603
C602
R623
R621
R625
R809
3
R808
R807
C812
B653
C813
TP9
R290
R289
R811
B625
C822
R806
R805
R280
R281
R288
TP7
R277
R276
R275
R261
R832
TP5
R260
TP6
TP3
TP4
R264
R263
R262
R813
C801
C802
R803
R804
C814
C811
B650
B651
B652
R831
CN801
R812
C815
IC801
C821
R802
R801
C601
R620
B648
R619
R618
R852
IC251
R851
C251
X251
C252
R274
B647
R601
R602
CN601
R683
C816
C612
R616
C616
C615
C614
Q631
R635
C633
R634
R636
C632
R656
R653
R655
R886
R652
R887
R651
B631
R612
R853
B633
B626
R291
B627
B629
B628
R606
B630
R658
R659
C655
C657
C653
C676
R682
C608
IC651
C610
C621
IC601
B639
R624
R631
R632
C624
C631
R633
B641
B640
C623
IC851
B655
R872
R873
R876
R875
R874
CN855
B619
B620
B621
R661
R615
R663
B637
C617
C661
C620
R617
C613
C611
R610
R611
B609
R257
R292
Q291
R256
B610
R255
B613
R254
R284
B614
B615
C291
B616
B618
B617
B638
C673
C677
R666
B649
X651
C652
C651
R670
C668
R669
R685
R662
R664
C665
C666
C664
R649
Q632
C618
B611
C622
R668
C663
C619
R609
R613
CN851
B656
L854
C853
R855
B654
R856
R871
C658
B612
B608
R654
R294
R253
R692
R696
R695
R705
C694
C656
R665
B605
C669
C667
Q842
R842
D851
C854
IC852
C855
R864
L851
R865
R866
R863
C852
R862
R861
CN854
B601
B602
R690
CN651
R293
R688
R687
R686
B603
B606
IC652
C695
R684
C671
R672
C672
CN652
R709
B604
R710
C699
R704
C692
R702
R708
R691
R701
R703
C696
R706
C691
R707
C693
R689
B623
C679
C680
B624
R667
B622
D667
Head amplifer & mechanism control board
Tuner board
2
1
2-14
HABC DE FG
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