Sony HCD-GTR88 / MHC-GTR88 Service Manual ▷ View online
HCD-GTR88
HCD-GTR88
29
29
6-12. SCHEMATIC DIAGRAM - POWER AMP Board -
• See page 43 for Waveforms. • See page 44 for IC Block Diagrams. • See page 48 for IC Pin Function Description.
D1300
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
IC1300
+VH
+VL
+REF
-REF
-VL
-VH
SUB-GND
+OUTPUT1
-OUTPUT1
-OUTPUT2
+OUTPUT2
-PRE
+PRE
R-IN
R-NF
STBY
L-NF
L-IN
TD
GND
LIM1
LIM2
100V
3300
C1301
D1301
D25XB60
D25XB60
100V
3300
C1300
100V
C1304
0.1
100V
0.1
C1305
100V
0.1
C1306
100V
0.1
C1307
100
1/2W
R1300
100
1/2W
R1301
0.1
R1347
1k
R1304
1k
R1305
100k
R1306
100k
R1307
0.1
R1346
MA2J1110GLS0
D1306
MC2836
D1307
470p
C1310
470p
C1311
50V
4.7
C1312
50V
4.7
C1313
56k
R1310
56k
R1311
1k
R1312
1k
R1313
68k
R1315
RY1300
1
2
3
4
5
6
1k
R1345
ISA1235AC1TP-1EF
PROTECTOR
Q1306
Q1306
Q1304
2SC3052EF-T1-LEE
PROTECTOR
100k
R1317
47k
R1318
22k
R1319
C1318
0.1
C1317
0.1
0.1
C1319
0.1
C1320
1
8
3
4
5
6
7
NO1301
8P
SW PWR GND
SW DC-DETECT
SW L-GND
-VL
+VL
SW R-GND
SW-OVERLOAD
1
R1324
220k
R1325
220k
R1326
220k
R1327
220k
R1328
56k
R1331
56k
R1332
10V
47
C1322
10V
47
C1323
100k
R1334
100k
R1335
4.7k
R1337
RT1P441C-TP-1
STK STANDBY
STK STANDBY
Q1309
JW1301
JW1305
JW1302
JW1303
MA2J1110GLS0
D1310
JW1304
1
3
4
5
6
7
8
9
10
11
12
13
14
NO1300
13P
VH
VH
VL
PWR GND
PWR GND
VL
VH
VH
AC3
AC3
VG
VF+
VF-
33k
R1344
CL1300
CL1301
CL1302
CL1303
CL1304
CL1305
CL1306
CL1307
CL1308
CL1309
CL1310
CL1314
CL1317
CL1319
CL1320
CL1321
CL1322
CL1323
CL1324
CL1325
CL1326
CL1327
CL1328
CL1329
CL1330
CL1331
CL1332
CL1333
CL1334
CL1335
CL1336
CL1337
CL1338
CL1339
CL1340
CL1341
+
-
+
-
TB1301
1
2
3
4
+
-
+
-
TB1300
1
2
3
4
TH1301
56k
R1314
CL1343
CL1344
CL1345
CL1346
CL1347
CL1348
CL1349
CL1350
4p
C1325
4p
C1324
UDZW-TE17-11B
D1305
UDZW-TE17-11B
D1304
39k
R1339
DC DETECT
2SC3052EF-T1-LEF
THERMAL DETECT
Q1305, Q1307
Q1305
Q1307
2SC3052EF-T1-LEF
Q1308
2SC3052EF-T1-LEF
Q1303, Q1302
Q1302
Q1303
2SC3052EF-T1-LEF
OVERLOAD DETECT
Q1300, Q1301
Q1301
Q1300
1200p
C1314
1200p
C1315
100V
10
C1308
100V
10
C1309
10V
100
C1321
50V
2.2
C1316
1
2
3
4
5
6
7
8
9
10
10P
CN1300
Fan+12V
VF-
VF+
VG
AC3
AC3
AC3
AC3
AC3
AC3
CL1351
CL1352
CL1353
1
2
3
3P
CN1302
FAN+12V
GND
3.3k
R1338
CL1354
CL1355
CL1356
CL1357
CL1358
CL1359
CL1360
CL1361
CL1362
CL1363
CL1364
CL1365
CL1366
CL1367
CL1368
CL1369
CL1370
25V
47
C1327
CL1371
CL1372
CL1373
CL1374
CL1375
CL1376
CL1377
CL1378
CL1379
1
2
3
4
5
6
7
8
9
10
11
11P
CN1303
M+9V/UNREGULATOR
MAIN GND
FL-IN
AGND
FR-IN
PROTECT
STK-MUTE
FRONT RELAY
HP-L
HP-GND
HP-R
47k
R1309
47k
R1308
*R1329, *R1330
680: EXCEPT MX
820: MX
*R1329
*R1330
470p
C1328
470p
C1329
470p
C1330
470p
C1331
470p
C1332
470p
C1333
470p
C1334
30PRA20FC
D1302
30PRA20FC
D1303
1W
3.3k
R1302
1W
3.3k
R1303
R1316
10
10
R1320
18k
R1333
63V
3300
C1302
63V
3300
C1303
STK412-750-E
ET1301
ET1302
E
(CHASSIS)
E
(CHASSIS)
POWER AMP BOARD
L
R
SATELLITE
SPEAKER
L
R
FRONT
SPEAKER
MAIN
BOARD
(3/3)
CN200
(Page 33)
C
TRANS
BOARD
CN1250
(Page 38)
MAIN
BOARD
(3/3)
CN100
(Page 33)
H
D
SUBWOOFER
BOARD
CN803
(Page 40)
I
IC1300
POWER AMP
0
0
0
-0.2
-0.2
3.2
-0.2
-0.2
75.5
-75.5
0
0
0
0
-77.5 -48.2 -36.6
36.6
48
77.5
0
0
8.5
8.5
0
0
8.9
0
9
0
0.7
8.8
0
0
0
0
0
3.5
0
8.7
9
8.8
DC FAN
M101
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
HCD-GTR88
HCD-GTR88
30
30
6-13. PRINTED WIRING BOARD - MAIN Board -
•
: Uses unleaded solder.
• See page 21 for Circuit Boards Location.
I
O
IC200
ET100
+
-
D600
A600
X401
R001
X402
1
2
10
11
CN403
C603
2
22
1
23
CN405
C109
1
2
12
13
CN410
C516
C218
J020
C220
C021
D623
D624
C224
C124
C227
C229
C131
C137
E4
C141
C147
C148
C149
1
6
CN550
1
2
8
9
CN450
E4
E4
1
2
8
9
CN450
E4
R051
C351
C353
C154
E
Q655
C655
C360
C268
1
2
8
9
CN220
C270
A070
C274
C276
C277
C077
C279
1
2
7
6
CN680
C181
C083
E
E4
Q684
C187
2
1
8
9
CN690
C290
C090
C291
C191
C092
E
Q696
C605
C606
C281
C132
C182
C127
C177
JW003
JW008
JW004
JW013
JW012
JW016
JW017
JW018
JW020
JW021
JW025
C231
JW019
JW041
JW042
JW028
JW027
JW027
JW047
JW048
JW034
JW066
JW069
JW070
JW074
JW071
JW075
JW068
JW078
JW082
JW073
JW083
JW085
JW072
JW089
D651
JW090
JW092
JW095
JW096
JW097
JW098
JW096
JW097
JW098
JW108
JW109
JW079
JW076
JW065
JW110
E
Q352
JW111
JW113
JW121
JW124
JW038
JW104
JW105
JW103
JW138
JW136
JW137
JW123
JW114
JW093
JW125
JW126
JW127
JW139
JW084
JW120
E
Q602
I
O
IC040
C041
JW005
JW067
JW112
JW119
JW101
JW187
JW193
JW162
JW160
JW159
JW159
JW195
JW036
JW040
JW023
JW030
JW198
JW209
JW015
JW211
JW044
JW051
JW050
JW045
JW046
JW043
JW143
JW049
JW128
JW153
JW164
JW168
JW191
JW208
JW100
JW132
JW192
JW192
JW204
JW205
JW206
JW207
JW205
JW206
JW207
JW219
JW129
JW213
JW214
JW214
JW217
JW216
JW218
JW220
JW215
JW203
JW221
JW222
JW061
JW062
JW063
JW226
JW227
JW228
JW230
JW231
JW232
JW233
JW229
JW184
JW091
JW173
JW077
JW223
JW080
JW081
JW189
JW053
JW055
JW167
JW166
JW243
JW244
JW245
JW248
JW240
JW249
JW252
JW254
JW279
JW247
JW283
JW286
JW288
JW284
JW281
JW260
JW172
JW297
JW278
JW277
JW277
JW305
JW280
JW253
JW309
JW251
JW313
JW314
JW316
JW317
JW186
JW321
JW322
JW010
JW011
L083
L092
L097
JW009
JW099
JW024
JW022
JW163
JW298
JW299
JW142
JW134
JW037
JW151
JW152
JW250
JW246
JW210
JW312
JW311
JW144
JW154
JW155
JW155
JW156
JW094
JW282
JW057
JW059
JW059
JW135
JW255
C081
C095
JW264
JW275
1
3
CN600
1
10
CN100
C201
C102
C608
4
1
CN691
1
5
2
4
IC055
C097
C699
JW026
JW201
JW202
JW200
JW239
JW241
JW056
JW058
JW224
JW177
JW170
JW106
JW106
JW001
JW002
JW169
JW064
JW306
JW180
JW302
JW310
JW185
JW178
JW174
JW296
JW276
JW261
JW102
JW122
JW033
JW266
JW171
JW267
JW300
JW165
JW179
JW183
JW308
JW236
JW194
JW190
JW115
JW116
JW117
JW118
JW150
JW133
JW133
JW107
JW149
JW148
JW145
JW146
JW147
JW237
JW238
JW270
JW269
JW268
JW271
JW303
JW161
JW319
JW158
C354
JW052
JW272
JW157
JW196
JW141
JW265
JW014
JW031
JW032
JW039
JW006
JW029
JW225
JW234
JW235
JW235
JW304
JW054
JW307
JW182
JW176
JW175
1
11
CN200
E
Q360
D652
D653
D362
D363
JW060
JW131
JW140
JW181
JW188
1
7
CN470
8
1
CN650
1
9
CN090
JW086
JW087
JW088
2
1
8
9
CN402
C128
C178
DISPLAY BOARD
CN1105
(Page 22)
N
DMB19 BOARD
CN4602
(Page 24)
R
DMB19 BOARD
CN1106
(Page 24)
T
HUB BOARD
CN1502
(Page 41)
O
MIC BOARD
NO700
(Page 34)
P
DMB19 BOARD
CN601
(Page 24)
S
POWER AMP BOARD
CN1303
(Page 28)
C
M101
DC FAN
PC - IN
D077
Q500
D571
D566
D201
D116
D351
D091
D081
D096
E
Q656
E
Q657
E
Q270
E
Q658
E
Q090
E
Q290
E
Q295
E
Q681
E
E
Q300
E
Q301
E
Q302
E
Q303
E
Q128
E
Q350
E
Q351
E
Q353
E
Q354
E
Q178
E
Q582
E
Q400
E
Q210
E
Q600
E
Q220
E
Q030
E
Q031
E
Q032
E
Q033
E
Q230
E
Q245
E
Q063
D392
E
Q643
E
Q644
E
Q647
E
Q648
E
Q640
E
Q641
E
Q645
E
Q646
1
4
5 8
5 8
IC252
1 4
5
8
IC253
1 4
5
8
IC254
1 4
5
8
IC255
IC401
IC400
R027
R026
R028
E4
R029
C120
JR020
R103
R104
R153
R154
C151
C150
C142
E4
C192
E4
E4
R192
R155
C215
R132
R137
R136
C135
C134 C133
R133
R127
R271
C105
R141
R131
R142
R105
R121
R177
R178
R128
R138
R190
C242
C265
R188
R610
D104
C222 C223
R222
R182
C183
C184
R183
C185
R202
1 4
8 5
IC251
C143
C144
C146
C193
C153
C152
R196
C194
JR045
R184
R194
R187
R186
C212
R211
R210
R215
R217
C214
R216
R608
R609
R228
R227
C273
R272
C275
C272
R278
R277
R220
R270
R221
R279
R229
JR050
JR051
R276
R033
R035
C292
R299
R298
R606
R077
JR048
R233
C234
R231
R281
R283 C284
R280
C294
C236
R236
R235
R240 C239
R241
R290
R291
R286
R285
C289
C286
C285
R224
R223
R225
C219
R242
R243
R275
R273
R274
R292 C269
R256
R293
R206
C208
C209
C258
R208
R258
R203
R253
R295
D290
R296
JR006
C498
R500
R497
R597
R401
R402
R404
R481
R581
R582
R531
R405
R505
R406
R410
R407
R507
R411
C410
C411
C414
R506
C405
C406 C407
JR007
JR008
R474
R495 R494
R493
JR009
R593
R491 R490
R589
E4
R489
R485
R585
R486
R587
R488
R418
R518
C418
C419
R419
R519
R430
R429
R421
C421
R422
R522
C422
C697
C698
R030
JR011
JR013
R641
R656
R642
R643
R644
R645 R646
R647
R648
R649
R650
R651
R652
R653
R654
R655
R613
R614
R615
JR014
JR015
R657
R658
R617
R616
R664
R662
C656
R663
R475
R472 (E4)
D360
C362
R361
R301
R302
JR016
JR017
R304
R300
R307
JR019
D010
R471
R204
R117
C355
D352
R357
R355
R354
R356
R353
R352
C352 D350
R351
JR004
R571
R467
D467
R565
R465
R543
R542
JR010
JR018
R683
R520
JR022
R434
C434
R435
C435
JR024
R439
R436
C436
R437
C438
C437
R438
JR025
R444
R445
R446
R447
R450
C399
C395
C396
C397
C398
C393
JR028
JR023
JR061
E4
JR003
R460
R453
R454
R451
R551
R473
R078
JR032
C602
C040
R612
R685 R684
R604
JR026
JR027
C392
JR030
JR033
R244
R294
R032
D692
R666
C086
R090
R091
R092
C074
R082
R036
R083
R086
C100
R095
R096
R097
C607
C155
R607
R358
R303
R521
R409
C073
C439
JR034
JR035
JR037
JR039
JR012
JR040
JR041
JR043
R081
R005
C014
C005
R099
R093
R094
JR044
JR031
C466
JR042
JR047
JR001
R079
JR021
JR052
JR053
R002
R052
C350
JR687
JR688
JR055
JR056
JR036
JR057
JR046
C002
JR029
JR038
JR058
JR059
JR060
JR651
JR361
R659
C543
C472
E4
R413
JR406
JR005
6
1
5
IC065
6
1
5
IC075
JR070
C502
C555
C508
C554
C503
C557
C551
C507
R
L
C553
C509
C504
C552
C501
C505
JR054
1
1415
29
28
42
43
56
MOTOR DRIVER
(METER DISPLAY ASSY)
(METER DISPLAY ASSY)
CDM
FLASH
PROGRAMMING
TC BOARD
CN502
(Page 36)
J
SUBTRANS BOARD
NO1203
(Page 37)
E
POWER AMP BOARD
CN1300
(Page 28)
D
SUBWOOFER BOARD
CN804
(Page 39)
B
1
10
CN100
R062
R063
R122
1 100
80
50
30
TUNER
(FM/AM)
FM 75
:
COAXIAL
ANTENNA
AM
E
Q062
1-881-134-
11
(11)
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
MAIN BOARD
HCD-GTR88
HCD-GTR88
31
31
6-14. SCHEMATIC DIAGRAM - MAIN Board (1/3) -
• See page 43 for Waveforms. • See page 44 for IC Block Diagrams. • See page 48 for IC Pin Function Description.
R402
100
R447
100
100
R491
100
R495
C362
0.1
5
1
4
1
1
1
0
1
9
8
7
6
5
4
3
2
1
12
13
A
B
C
D
E
F
G
H
I
J
0.1
0.8
0
Q400
RT1N431C-TP-1
B+ SWITCH
B+ SWITCH
RT1N441C-TP-1
Q350
B+ SWITCH
2SC3052EF-T1-LEF
B+ SWITCH
B+ SWITCH
Q354
2SC3052EF-T1-LEF
B+ SWITCH
Q303
2SC3052EF-T1-LEF
B+ SWITCH
Q302
ISA1235AC1TP-1EF
B+ SWITCH
Q301
ISA1235AC1TP-1EF
B+ SWITCH
Q300
Q360
KTC3228-Y-AT/P
+5V REGULATOR
Q230
2SC3052EF-T1-LEF
LED DRIVE
Q582
2SC3052EF-T1-LEF
LED DRIVE
1k
1k
R405
1k
R419
JL493
R353
10k
R356
100k
10k
R430
R354
10k
0.047
C422
R474
10k
R409
C498
0.1
0.1
C543
R497
470
R522 22k
1k
R418
R404
100
R581
15k
0.047
C406
C354
10
16V
R355
100k
470
R485
0.1
C414
0.047
C419
R351
10k
C355
0.1
R507 22k
X401
32.768kHz
R411
220k
KTA1271Y-AT
Q352
0.047
C418
MA2J1110GLS0
D290
JL430
JL429
22k
R465
4.7k
R358
680
X402
8MHz
*R593
*R593
10k
R429
R413
1M
JL428
JL420
R518 22k
R406
MAZ8043GMLS0
D352
50V
2.2
C201
50V
4.7
C102
100
R434
10k
R543
3.3k
R565
R571
R551 10k
R451
100
0.047
C405
R481
1k
*R493
*R493
10k : E2,E51,MX,AR
47k : E2,E51,MX,AR
33k : AUS
47k : E4
6.8k : E4
12k : AUS
15k
100k
R204
R521 22k
C351
10
50V
MA2J1110GLS0
D350
C353
10
50V
R506 22k
100
R467
C352
0.33
R357
2.2k
R505 22k
R519 22k
R352
22k
1k
R407
15k
R597
1k
R421
MC2836
D351
MC2838-T112-1
D566
MC2840-T112-1
D116
MC2840-T112-1
D201
MC2838-T112-1
D571
0.047
C421
0.047
C407
1k
R422
100
R454
100
R453
JL461
10k
R473
JL301
JL302
JL309
JL303
JL308
JL307
JL306
JL305
JL304
JL007
JL004
JL006
JL002
JL013
JL010
JL009
JL005
JL003
JL008
JL001
JL051
JL054
JL056
JL066
JL057
JL062
JL053
JL070
JL065
JL052
JL055
JL069
JL059
JL068
JL058
JL071
JL040
JL064
JL061
JL050
JL067
JL060
JL063
D660
MAZ8056GMLS0
C360
10
50V
R361
330
100
R398
R471
100k
1
2
3
4
5
6
7
8
9
10
11
CN403
11P
LED+9V
WHITE
RED
DGND
METER SW
MGND
IND2
IND1
IND3
IND4
M+5V
100
R435
100
R436
100
R437
R117
R531
1k
R582
1k
C002
1000p
R410
10M
100
R450
Q500
DTA114YKA-T146
B+ SWITCH
R303
680
R301
470
R302
2.2k
R304
47k
R307
10k
R300
470
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CN405
23P
FL-DATA
FL-CLK
DGND
FL_CS
FL+3.3V
VF
-VG
VF
AD KEY0
SIRCS
EVER+3.3V
STBY LED
SW/USB LED
LED-VOL3,4
LED-VOL5,6
AD_KEY1
LED-VOL1,2
VOL
USB LED CTRL
AD_KEY2
LED GND
SEL A
SEL B
6.3V
C516
3300
2SC3052EF-T1-LEF
Q351
2SC3052EF-T1-LEF
Q353
+4V REGULATOR
15k
R585
100
100
R444
R445
0.1
C466
1
2
3
4
5
6
7
8
9
CN402
9P
DGND
TXD1
RTS1
MCU VCC
CLK1
RXD1
CN VSS
RESET
GND
MAZ8033G0LS0
D467
100
R486
100
R488
10k
R587
R446
100
100
R5F364AEDFA
SYSTEM CONTROLLER
IC401
1
FL-DRIVER-CLK
2
FL-DRIVER-DATA
3
AD SUPPLY SW
4
SIRCS
5
SW-OPEN
6
SW-STOCK
7
8
BYTE
9
CNVss
10
XC-IN
11
XC-OUT
12
RESET
13
X-OUT
14
VSS
15
X-IN
16
VCC
17
NMI
18
M1-
19
20
AC-CUT
21
M1+
22
SW3
23
SW1
24
SW-CHUCK
25
SW2
26
SW-CLOSE
27
28
NC
CDM-SD
29
IIC-CLK
30
IIC-DATA
31
SERIAL TXD1
32
SERIAL RXD1
33
SERIAL CLOCK
34
MTK-XIFCS
35
MTK-TXD
36
MTK-RXD
37
MTK-CLOCK
38
39
39
40
GND
41
TC REC MUTE
42
MTK SUPPLY CTRL
43
FAN HIGH SPEED CTRL
44
VBUS-DET
45
HUB-RST
46
ST-DOUT
47
MTK-OC1
SW SPK RELAY
48
MTK-RST
MTK-BUSY
49
MTK-OE
50
MTK-OC2
51
STK CLK
52
ST-DIN
53
ST-CE
54
100
R460
R542
0
60
51
52
53
54
ST-TUNED
55
EEP-SDA
56
EEP-SCL
57
R2A15216FP-CLK
R2A15216FP-DATA
58
59
60
FR SPK RELAY
61
PROTECT
STK MUTE
62
VCC
63
LINE-MUTE
64
VSS
65
MTK 3.3V MONITOR
66
HP/MIC DET
67
FAN DETECT
68
THERMAL PROTECT
69
POWER ILLUMINATOR
70
VACS-IN
71
OVERVOLTAGE
72
TC-STATE
73
FAN HIGH SPEED CTRL
74
POWER/DISPLAY-KEY
75
STBY RELAY
76
TC_M+9V SW
77
METER-IN4
78
METER-IN3
79
METER IN1
80
METER IN2
81
METER SW
82
82
METER RED LED
83
83
METER WHITE
84
84
LED CONTROL
85
AD-KEY2
86
USB LED CTRL
87
MASTER VOL
88
LED VOL1.2
89
AD-KEY1
90
LED VOL5,6
91
LED VOL3,4
92
MODEL-IN
93
DEST-IN
94
SW/USB
95
STBY LED
96
AVSS
97
AD-KEY0
98
AVREF
99
AVCC
100
FL
DRIVER-CS
C437
47p
100
R438
C438
47p
100
R439
C439
47p
C350
0.1
C436
47p
47p
C434
47p
C435
D362
10EDB40-TB3
D363
JR361
0
10EDB40-TB3
C410
18p
C411
27p
48
78
20
97
R500
100
100
M2-
27
M2-
M2+
M2+
21
81
22
85
470
R489
15k
R589
89
20
7
77
76
75
4
M1-
M1+
1
86
9
67
34
34
63
PROTECT
18
79
6
12
5
72
E4
VACS
ILLUM
2
9
32
33
34
31
47
50
58
59
57
68
43
12
77
78
79
80
81
35
36
37
19
20
6
1
4
82
83
2
1
49
97
4
95
94
91
31
32
33
84
85
86
88
89
100
80
90
95
38
87
90
41
44
17
3
31
5
2
18
66
94
91
87
88
100
R494
100
R490
45
46
12
19
FLASH PROGRAMMING
DISPLAY
BOARD
CN1105
(Page 23)
N
5
6
6
IC401
MAIN
BOARD
(2/3)
(Page 32)
12
MAIN
BOARD
(3/3)
(Page 33)
11
2.9
0
0
0
0
3.3
3.0
3.2
0
0
1.6
1.9
2.9
1.5
1.1
3.2
1.4
3.3
3.3
3.5
3.2
3.1
0
0
2.9
0
3.3
0
0.8
3.2
3.5
3.5
3.5
0
1.0
1.5
3.3
1.8
1.6
3.3
3.3
0
0
3.5
0
3.5
0
0
0
0
0
3.5
3.5
3.5
0
2.6
3.3
3.3
3.3
0
0.6
0.2
0
2.6
3.3
3.2
3.3
0.6
3.2
1.6
3.1
3.1
3.3
0
0
3.1
3.2
0
3.3
3.3
2.5
3.1
3.3
3.3
3.3
2.9
3.3
0
0
3.3
0.1
0.8
5.0
8.4
5.6
*
8.9
8.4
8.9
*
8.5
4.4
0.4
4.4
0.3
0
0
3.3
3.3
3.2
4.1
9.3
8.6
7.3
4.1
4.6
0
0.7
3.5
0
3.3
0
MOTOR DRIVER
(METER DISPLAY ASSY)
MAIN BOARD (1/3)
R401
100
100
R475
R472
100
C472
0.1
30
Ver. 1.3
HCD-GTR88
HCD-GTR88
32
32
• See page 43 for Waveforms. • See page 44 for IC Block Diagrams. • See page 48 for IC Pin Function Description.
6-15. SCHEMATIC DIAGRAM - MAIN Board (2/3) -
19
17
32
20
7
21
15
22
14
16
17
18
15
MAIN
BOARD
(3/3)
(Page 33)
10
13
11
12
MAIN
BOARD
(1/3)
(Page 31)
R063
2.2k
Q063
2SC3052EF-T1-LEF
0
0.7
R062
2.2k
Q062
2SC3052EF-T1-LEF
JR061
0
E4
41
72
76
0
0.7
RT1N431C-TP-1
SWITCH DRIVER
MUTE SW
MUTE SW
SWITCH
Q681
R520
10k
JR651
0
Q684
KTA1271Y-AT
8.9
8.9
8.2
R216
100
R273
51k
R253
470
R202
0
3.2
0
R683
1.2k
R133
4.7k
Q178
2SC3052EF-T1-LEF
BASS AGC
C181
10
50V
C191
10
50V
C184
0.01
R196
10k
C183
0.022
50V
0.47
C147
C135
3900p
R190
1M
R184
1k
C185
3900p
C133
0.022
C149
47
10V
C141
10
50V
0.047
C152
R182
4.7k
C132
0.047
R131
1k
C134
0.01
R183
4.7k
C124
1
50V
C148
100
10V
R132
4.7k
C137
10
50V
C155
3300p
C154
470
10V
C150
0.1
C153
0.1
R186
2.7k
R136
2.7
E4
E4
C182
0.047
C187
10
50V
C151
0.1
C109
10
50V
Q128
2SC3052EF-T1-LEF
BASS AGC
C105
3300p
C127
0.22
C128
0.18
C178
0.18
C177
0.22
R127
680
R128
15k
R178
15k
R188
10k
R138
10k
R610
100k
E4
R217
5.1k
2SC3052EF-T1-LEF
Q210
R122
10k
R121
10k
R194
1k
R141
1k
R215
330k
R177
680
C131
10
50V
C212
2.2
4.7
C194
4.7
C193
4.7
C146
4.7
C143
4.7
C144
JL110
JL109
JL408
JL121
JL122
JL438
JL439
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
TAPE-R
CD-R
NC
GAMER
INGAINOUTR
RECAR
RECBR
SA1
SA2
TRER
MID1R
MID2R
BASS1R
BASS2R
TONEOUTR
VOLINR
BB1R
BB2R
OUTR
AGCOUTR
DATA
CLK
ILLUM
SWOUT
AGCC
AGCOUTL
OUTL
BB2L
BB1L
VOLINL
TONEOUTL
BASS2L
BASS1L
MID2L
MID1L
TREL
RECBL
RECAL
INGAINOUTL
GAMEL
NC
CD-L
Tape-L
ST-L
PC-L
NC
MIC
VC
REFOUT
REFIN
GND
VCC
DPLL/SURL
DPLR/SURR
NC
PC-R
ST-R
JL423
1
2
3
4
5
6
7
8
9
10
11
12
13
CN410
13P
M2-
M2+
M1-
M1+
SW-COM
SW3
SW1
SW7-CHACK
SW2
SW6-CLOSE
SW5-STOCK
SW8-OPEN
NC
C399
22p
JL603
1
2
3
4
5
6
7
8
9
CN690
9P
NC
NC
IFSCK
DGND
IFSOD
IFSDI
XSYSRST
XIBSY
XIFCS
JL606
JL607
JL601
JL604
JL602
JL605
JL611
JL610
JL615
JL613
JL617
JL616
JL612
JL622
JL621
JL624
JL625
JL623
JL620
1
2
3
4
5
6
7
7P
CN680
R-IN
AGND
L-IN
AGND
L-OUT
AGND
R-OUT
JL635
JL630
JL634
JL633
JL636
JL025
1
2
3
4
5
6
7
8
9
9P
CN450
TP-STATE
M+9V
M-GND
REC-Rch
REC-Lch
A-GND
PB-Rch
PB-Lch
A+9V
JL021
JL020
JL027
JL023
JL026
JL024
JL028
JL022
JL632
JL631
C142
4.7
R142
6.2k
R105
10k
JL643
JL642
JL645
JL646
JL644
JL641
JL659
JL649
JL661
JL662
JL660
JL648
JL647
R646
560
R615
10k
R643
470
R648
47k
Q657
ISA1235AC1TP-1EF
R616
560
R641
470
D651
10EDB40-TB3
R663
22k
Q648
2SC3440-T12-1F
R662
33k
R657
2.7
R656
47k
R653
560
C655
220
10V
R652
47k
R650
47k
R644
47k
R613
2.2k
Q655
KTA1273-Y-AT
REGULATOR
R614
470
Q656
2SC3052EF-T1-LEF
REGULATOR
R647
47k
Q644
2SC3440-T12-1F
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
REGULATOR
MOTOR DRIVE
MOTOR DRIVE
R617
2.2k
R655
47k
R642
47k
R658
2.7
Q658
ISA1235AC1TP-1EF
REGULATOR
R664
2.2k
2SC3440-T12-1F
R654
560
R645
560
R649
470
R651
470
C656
0.1
Q643
2SC3440-T12-1F
C698
0.1
C697
0.1
C398
22p
C397
22p
C396
22p
C395
22p
C393
22p
C392
680p
JL608
JL609
D104
MA2J1110GLS0
JL145
JL154
C192
4.7
E4
R192
6.2k
R155
10k
R137
6.2
R187
6.2k
JL668
C242
0.47
C214
2.2
C215
2.2
C265
2.2
JL112
JL441
1
8
3
4
5
6
7
CN650
8P
M+9V
Vbus_Det
D+3.3V
DGND
OC1
OC2
RST
1
2
3
4
5
6
7
CN470
7P
MIC SIGNAL
MIC GND
A+9V
MIC/HP DET
HP-L
HP GND
HP-R
MC2840-T112-1
D392
Q640
2SA1365-T112-1EF
Q641
2SA1365-T112-1EF
Q645
2SA1365-T112-1EF
Q646
2SA1365-T112-1EF
R659
2.7
D652
10EDB40-TB3
D653
10EDB40-TB3
C501
47p
C502
470p
4.5
C551
470p
C552
470p
C503
470p
C553
470p
C508
470p
CD-L
MIC
PC-L
PC-R
ST-R
ST-L
CD-R
M1-
M1+
M2-
M2+
5
6
7
18
19
21
22
34
39
37
36
35
38
TC-PB-L
TC-PB-R
TC-REC-L
47
50
45
44
27
TC-PB-L
TC-PB-R
MIC
CD
MECHANISM
DECK
C236
0.15
R233
100k
R240
10k
R241
10k
R235
6.8k
C294
0.1
R231
27k
C273
22p
8
7
6
5
4
3
2
1
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
57
58
C270
47
16V
C291
470
10v
C272
47p
C209
0.1
8
7
6
5
4
3
2
1
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
R221
470
R222
24k
R206
10k
8
7
6
5
4
3
2
1
SW PREAMP
IC253
NJM4558V-TE2
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
R271
470
R278
1k
R256
10k
R228
1k
R272
24k
R298
1k
C218
47
16V
C222
47p
C220
47
16V
C223
22p
R299
1k
C290
100
10v
C268
47
16V
C292
1000p
R236
6.8k
R285
6.8k
R286
6.8k
8
7
6
5
4
3
2
1
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
C286
0.15
C239
0.15
C289
0.15
R290
10k
R291
10k
R270
8.2k
R220
8.2k
R243
47k
R292
1k
R293
47k
C275
0.1
C276
470
10V
C258
4.7
C208
4.7
R277
33k
R227
33k
R258
27k
R208
27k
8
7
6
5
4
3
2
1
SW PREAMP
IC255
NJM4558V-TE2
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
R274
5.6k
R223
51k
R225
47k
C224
1
50v
C274
1
50v
R224
5.6k
R275
47k
C285
0.1
C229
10
50V
C279
10
50V
C231
0.056
C234
0.068
R281
27k
C281
0.056
C284
0.068
R283
100k
R242
1k
C269
4.7
C219
4.7
FR PREAMP
IC252
NJM4558V-TE2
USB RECORD PREAMP
IC251
NJM4558V-TE2
SW-L
SW-R
SW-R
SW-L
USB-REC-R
USB-REC-L
66
R280
33
SW-R
SW-L
CD-R
CD-L
TC-REC-R
VACS
TC-REC-L
TC-REC-R
Q647
DMB 19
BOARD
(1/3)
CN1106
(Page 25)
T
HUB
BOARD
CN1502
(Page 42)
O
DMB 19
BOARD
(3/3)
CN4602
(Page 27 )
R
MIC
BOARD
NO700
(Page 35)
P
TC
BOARD
CN502
(Page 36)
J
IC B/D
R2A15216FP
IC400
IC400
INPUT SELECTOR
ELECTRICAL VOLUME
4.5
4.5
4.5
4.5
4.5
4.5
0
0
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
0
9.0
4.5
IC252
IC251
IC253
IC254
IC255
8.4
4.2
4.2
4.2
4.2
4.2
4.2
8.4
4.2
4.2
4.2
8.4
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
9.0
4.6
4.6
4.6
8.6
4.6
4.6
8.4
4.6
4.6
4.6
4.6
4.6
4.6
8.4
0
8.4
7.8
4.9
4.4
7.8
5.0
8.3
4.0
8.4
5.0
0
5.0
0
5.03
5.02
5.03
5.04
5.02
5.03
5.03
5.03
5.04
5.02
5.05
5.02
5.0
0
5.0
0
R211
82k
R210
1k
4.0
1.0
1.6
4.5
4.2
4.6
4.6
4.1
4.5
MAIN
BOARD
(3/3)
(Page 33)
13
1000p
C002
MAIN BOARD (2/3)
SW PREAMP
IC254
NJM4558V-TE2
BAND PASS FILTER
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
R203
470
Ver. 1.1
Click on the first or last page to see other HCD-GTR88 / MHC-GTR88 service manuals if exist.