Sony MHC-GTX88 Service Manual ▷ View online
45
45
HCD-GTX88
HCD-GTX88
6-13. DIAGRAMA ESQUEMÁTICO — SEÇÃO PRINCIPAL (2/4) —
(Page 51)
(Page 46)
(Page 47)
(Page 41)
(Page 53)
(Page 44)
(Page 44)
12
K
3
4
A
6
D
9
J
F
E
2
C
5
1
G
I
13
8
B
15
7
14
11
10
H
16
1
BOARD
(1/4)
MAIN
2
BOARD
(1/4)
MAIN
USB BOARD
D
CN907
BD91 BOARD
A
CN202
EFFECTOR BOARD
E
CN1502
5
MAIN BOARD (3/4)
6
MAIN BOARD (4/4)
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
3.2
3.2
3.2
0
0
0
0
0
0
0
0
3.2
3.2
0
0.1
0
0.1
0
0
3.2
0
0
0
0
0
0.1
3.2
0.1
3.3
3.2
0.1
3.3
3.2
3.2
0
0
0
0
0
0
0
0
0.6
0.6
3.2
3.2
(0)
(0)
0
0(9)
9
4.5
4.5
4.5
4.5
4.5
0(9)
0
4.5
4.5
4.5
4.5
4.5
9
4.4
4.5
4.4
4.5
4.4
0
4.5
4.4
4.5
4.5
4.5
0
3.2
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
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
4.2
9
0
4.5
0
0
4.5
4.5
4.1
0
4.5
0
4.1
3.2
0
4.5
4.5
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
9
0
0
4.6
3.2
0
100k
RT1N141C-TP-1
G
L1
R1
L2
R2
J101
220p
C263
220p
C260
220p
C261
220p
C262
0
R261
0
R262
42
41
37
38
39
40
1
2
3
4
5
34
35
36
6
7
8
9
30
31
32
33
10
11
12
13
29
28
27
14
15
16
26
25
17
18
24
23
22
19
20
21
M61530FP-D60G
IC201
FR LPFOUT
FR LPFIN
SL EXTIN
SL VOLIN
SL LPFOUT
SL LFPIN
SR EXTIN
SR VOLIN
SR LPFOUT
SR LPFIN
C VOLIN
C LFPOUT
C LPFIN
LFE VOLIN
SW IN
VCC
D
ATA
CLOCK
GND
TEST
AGC
SW LPFOUT
SW LPFIN
SW OUT
C OUT
SR OUT
SR BB2
SR BB1
SL OUT
SL BB2
SL BB1
FR OUT
FR IN
FL OUT
REF OUT
REF IN
L LPFIN
L LPFOUT
R LPFOUT
R LPFIN
FL LPFIN
FL LPFOUT
R229 6.8k
6.8k
R228
0.1
C231
0.1
C220
10V
100
C222
10V
100
C223
0.1
C221
12k
R221
100k
R220
C230
0.1
50V
1
1
C207
220p
C206
0.1
C205
220p
C203
1k
R204
1k
R205
10V
220
C204
0
R203
50V
10
C202
10V
1000
C535
0.1
C520
42
41
37
38
39
40
1
2
3
4
5
34
35
36
6
7
8
9
30
31
32
33
10
11
12
13
29
28
27
14
15
16
26
25
17
18
24
23
22
19
20
21
M61529FP-D60G
IC101
REF
MIC
INA1
INB1
INC1
IND1
RECA1/Nex1
RECB1
TMI1
TMO1
TCA1
TCB1
TCC1
TOUT1
VILIN1
BB_A1
BB_B1
OUT1
SAOUT
VCC
D
ATA
CLOCK
GND
SWOUT
OUT2
BB_B2
BB_A2
VOLIN2
TOUT2
TCC2
TCB2
TCA2
TMO2
TMI2
RECB2
RECA2/INex2
IND2
INC2
INB2
IINA2
SUR2/DPL2
SUR1/DPL1
10k
R122
10k
R156
10k
R155
50V
10
C161
C160
0.015
10k
R152
50V
1
C159
0.022
C157
0.022
C156
2.2k
R151
0.068
C140
50V
10
C153
50V
10
C154
50V
10
C155
10k
R140
1k
R154
100
R166
220
R157
R257
1.8k
R250
1.8k
2SD2114KT146
Q251
2SD2114KT146
Q250
10V
100
C100
50V
10
C150
50V
10
C103
50V
10
C104
50V
10
C105
100
R116
220
R107
2.2k
R101
100
R150
0.1
C115
50V
10
C111
0.22
C112
0.27
C113
C110
0.015
10k
R121
100
R119
10k
R106
560
R103
47k
R105
50V
1
C109
0
FB150
0.022
C106
0.022
C107
10k
R102
50V
10
C130
2.2k
R130
2.2k
R131
100k
R133
50V
0.47
C131
0.1
C536
TP213
TP212 TP211 TP210
TP209 TP208
TP207 TP206
TP205
TP204
TP203
TP202
TP201
10EDB40-TB3
D561
10EDB40-TB3
D562
50V
C281
10
50V
C280
10
JR129
0
0.1
C240
0.1
C241
10V
220
C116
10V
470
C585
0.1
C586
4.7k
R602
4.7k
R603
10V
470
C587
0.1
C588
0.1
C534
50V
10
C596
50V
10
C597
50V
10
C600
50V
10
C601
1M
R132
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74VHC157FT(EKJ)
IC568
SELECT
1A
1B
1Y
2A
2B
2Y
GND
3Y
3B
3A
4Y
4B
4A
/ST
VCC
JW563
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
27P
CN5051
A
VDD (3.3V)
R-OUT
DACGND
L-OUT
AGND
/RST
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
REQ
SBSY
DGND
D-OUT
DVDD (3.3V)
VM(7V)
MGND
M-MUTE
LRCKIN
BCKIN
AIN
ST_REQ
GA
TE
CLK
D
ATA
0.1
C603
0.1
C604
0.1
C605
10k
R621
10k
R620
10k
R622
10k
R623
10k
R624
10k
R625
10k
R626
10k
R627
Q602
SELECT SWITCH
RT1N141C-TP-1
10k
R628
0.1
C609
33k
R632
33k
R630
1k
R629
1k
R631
10k
R640
10k
R641
10k
R642
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BU4052BCF-E2
IC563
Y0
Y2
Y
Y3
Y1
INH
VEE
VSS
A
B
X3
X0
X
X1
X2
VDD
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BU4052BCF-E2
IC564
Y0
Y2
Y
Y3
Y1
INH
VEE
VSS
B
A
X3
X0
X
X1
X2
VDD
R255
10k
R251
10k
560
R153
10k
R656
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
21P
CN5053
D
ATA
CLOCK
D0
D1
USB-S0
USB-S1
BCK
A-IN
GA
TE
REQ
ST
-REQ
USB-RST
LRCK
DVSS
DVSS 3.3V
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74HC4066AFT(EL)
IC567
1I/O
1O/I
2O/I
2I/O
2C
3C
GND
3I/O
3O/I
4O/I
4I/O
4C
3C
VCC
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74HC4066AFT(EL)
IC566
1I/O
1O/I
2O/I
2I/O
2C
3C
GND
3I/O
3O/I
4O/I
4I/O
4C
1C
VCC
JW580
JW272
0
FB260
0
FB261
0
FB263
0
FB262
0
FB507
0
FB509
0
FB512
6.8k
R613
6.8k
R612
820k
R605
820k
R606
820k
R604
820k
R608
820k
R609
820k
R607
1k
R667
1k
R668
S
2SK3378ENTL
Q608
S
2SK3378ENTL
Q610
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CN512
+9V
DGND
CTRL1
SELECTOR
AGND
INPUT L
AGND
INPUT R
AGND
OUTPUT R
AGND
OUTPUT L
AGND
S0
S1
S2
CTRL3
JW266
1k
R104
C108
0.022
C158
0.022
0.022
C615
C625
0.01
Q101
2SC2712-YG-TE85L
RT1N141C-TP-1
Q591
RT1N141C-TP-1
Q597
Q596
RT1N141C-TP-1
Q598
Q151
2SC2712-YG-TE85L
JW576
470k
R616
470k
R617
470k
R614
470k
R615
470k
R669
470k
R670
100k
R643
100k
R644
100k
R649
100k
R648
100k
R650
100k
R654
3.3k
R267
3.3k
R266
3.3k
R265
3.3k
R264
2.7k
R270
2.7k
R271
1.8k
R269
1.8k
R268
R679
50V
3.3
C102
50V
3.3
C152
50V
3.3
C251
50V
3.3
C250
50V
4.7
C595
50V
4.7
C594
50V
4.7
C590
50V
4.7
C589
47k
R252
47k
R256
0.01
C264
JW260
C242
0.1
C5
C4
C3
C2
C1
A16
A15
A14
A12
A11
A10
A9
A8
A7
A6
A5
A2
A1
A3
A4
A13
A17
F11
F10
F9
F8
F7
F6
F5
F4
F3
F2
F1
F12
0.22
C163
0.22
C162
LRCKIN
AIN
D
ATA
CLOCK
GA
TE
ST_REQ
D
ATA
CLOCK
AIN
GA
TE
ST_REQ
BCKIN
BCKIN
6
24
23
19
1
78
25
26
27
35
36
38
31
34
79
80
81
75
LRCKIN
77
18
7
28
82
22
21
39
5
3
2
TV IN
IC563
SIGNAL SELECTER
IC564
SIGNAL SELECTER
IC101
INPUT SELECT SWITCH,
IC201
SURROUND VOLUME CONTROL
IC568
SIGNAL SELECTER
IC567
SIGNAL SELECTER
IC566
SIGNAL SELECTER
MAIN BOARD (2/4)
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
Q250,251
MUTE
Q596,597
SELECT SWITCH
Q598
EFFECTOR SELECT SWITCH
Q151
DBFB SWITCH
Q101
DBFB SWITCH
L
R
L
R
AUDIO
IN
VIDEO
IN
AUDIO
VIDEO
J101
46
46
HCD-GTX88
HCD-GTX88
6-14. DIAGRAMA ESQUEMÁTICO — SEÇÃO PRINCIPAL (3/4) —
(Page 44)
(Page 45)
(Page 47)
1
D
2
H
F
E
3
10
4
9
A
8
7
5
C
B
G
6
MAIN BOARD (1/4)
3
5
MAIN BOARD (2/4)
(4/4)
BOARD
MAIN
7
IC B/D
0.6
0
4.4
0
0
0
0.6
1.3
8.4
9
0[3.3]
3.1<0>
3.3
0
3.2
0.6
2.9
2.9
4.5
4.5
4.5
0
4.4
0.6
2.9
2.9
4.5
4.5
4.5
0
4.5
-0.9<-0.2>[0.7]
-0.9<-0.2>[0.7]
0
0
0.7[-8.7]
0.7[-8.7]
0
0
0
0.7[-8.6]
0.7[-8.6]
0
-0.9
<-0.2>
[8.9]
9
9[0]
9[0]
0[3.2]
4.8[0]
0[3.2]
4.8[0]
0[9]
9
8.2[9]
8.9
[-8.7]
9
0.1[8.9]
0[3.2]
9[0]
9[6.8]
0
[0.2]
[0.2]
0.1
[-0.2]
[-0.2]
0.1
[8.2]
0.01
C370
4700p
C371
10V
47
C374
0.01
C377
6800p
C379
1000p
C372
1000p
C373
3.3k
R370
4.7k
R371
4.7k
R374
47
R377
10k
R378
10
R379
2SD596-T1DV4
Q370
33
R386
47k
R395
4.7k
R394
RT1P137P-TP-1
Q378
100uH
L372
R373
0
6.8k
R380
10k
R391
2.2k
R397
R376
0
6.8k
R388
10k
R392
2.2k
R393
120p
C378
330p
C383
330p
C384
120p
C380
27mH
L370
27mH
L371
2SA1162-YG-TE85L
Q377
2.2k
R381
2.2k
R382
2.2k
R383
2.2k
R384
2.2k
R385
2.2k
R387
10k
R399
10k
R390
10k
R396
680p
C375
680p
C376
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
HA12237F
IC301
PB-NF2
(R)
(R)
PB-EQ(R)
EQOUT(R)
T
A1(R)
PB-OUT(R)
NC
REC IN(R)
ALC(R)
NC
REC OUT(R)
ALC ON/OFF
HIGH/NORMAL
A/B
MUTE ON/OFF
REC MUTE OFF/ON
VCC
ALC DET 1M
GND
I REF
TEST
REC OUT(L)
NC
ALC(L)
REC IN(L)
NC
PB OUT(L)
T
A1(L)
EQOUT(L)
PB-EQ(L)
PB-NF2(L)
PB-NF1(L)
A IN(L)
RIP
B IN(L)
REC-RETN
GND
B IN(R)
NC
A IN(R)
PB-NF1(R)
16V
47
C359
50V
10
C310
16V
47
C309
0.012
C301
0.1
C303
2200p
C314
50V
10
C304
50V
1
C305
50V
10
C311
50V
2.2
C306
3.3k
R301
R302
3.3k
10k
R303
2.2k
R319
2.2k
R304
10k
R337
22k
R339
47k
R305
1
2
3
4
5
6
7
8
8P
CN507
GND
E-HOT
R-REC
GND
R-PB
L-REC
GND
L-PB
1
2
3
3P
CN503
R-PB
GND
L-PB
1200p
C381
1200p
C382
TP325
TP318
0.012
C351
0.1
C353
10
C354
50V
50V
1
1
C355
50V
2.2
C356
2200p
C364
3.3k
R351
R352
3.3k
10k
R353
2.2k
R369
10k
R357
2.2k
R354
47k
R355
TP309
TP311
22k
R389
50V
10
C361
TP338
TP320
100
R312
0
R311
100
R310
4.7k
R309
100
R308
1M
R307
22k
R306
10V
470
C308
50V
10
C307
50V
10
C312
1
2
3
3P
CN510
L
GND
R
6
2
1
3
5
4
T301
TRANSFORMER
BIAS OSCILLATION
0
JR114
0.022
C385
0.022
C386
JW584
10k
R356
10k
R336
18k
R375
18k
R372
Q374
2SD2704K-T146
Q373
2SD2704K-T146
Q372
2SD2704K-T146
Q371
2SD2704K-T146
Q375
2SD2704K-T146
Q376
2SD2704K-T146
RT1N141C-TP-1
Q379
RT1N141C-TP-1
Q381
RT1N141C-TP-1
Q383
RT1P141C-TP-1
Q382
RT1N141C-TP-1
Q380
C1
C2
C3
C4
C5
D1
D3
B1
B2
60
59
55
56
57
58
MAIN BOARD (3/4)
DECK A/B SELECT,
IC301
HP901
PB HEAD
(DECK A)
PB
(L-CH)
PB
(R-CH)
HRPE901
REC/PB/ERASE
HEAD
(DECK B)
REC/PB
(L-CH)
REC/PB
(R-CH)
ERASE
PB/REC EQUALIZER AMP
Q371-376
MUIE
Q377,379,381
MUTE CONTROL SWITCH
Q382,383
TC PB MUTE CONTROL SWITCH
Q370
BIAS OSC
Q378,380
REC BIAS CONTROL SWITCH
TEST
PIN
47
47
HCD-GTX88
HCD-GTX88
6-15. DIAGRAMA ESQUEMÁTICO — SEÇÃO PRINCIPAL (4/4) —
(Page 55)
(Page 44)
(Page 59)
(Page 63)
(Page 45)
(Page 46)
(Page 61)
(Page 59)
(Page 51)
11
4
12
6
H
A
8
F
10
3
14
E
G
C
J
D
13
2
B
1
5
7
I
9
CN600
S
POWER
BOARD
BOARD
CN906
F
PANEL
BOARD
CN1214
K
TRANS
BOARD
(3/4)
7
MAIN
BOARD
MAIN BOARD (1/4)
4
6
MAIN BOARD (2/4)
BOARD
I
SUBWOOFER
CN700
BOARD
H
POWER
CN601
BOARD
C
USB
CN901
IC B/D
IC B/D
IC B/D
16.3
7
0
0.7
12.6
13.2
16.5
16.5
9.1
9.1
16.5
0
3.4
16.5
0
3.4
0.4
16.5
9
0
9
5.2
0.2
16.5
16.5
0
3.2
-0.9
13.3
0.7
0
7
0.7
0.1
13.3
16.5
12.6
0
-6.7
-6.7
0
7.6
4
4.6
-6.7
0
‘
‘
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CN508
GC RESET
11C-CLK
11C-DATA
SIRCS
KEY INT DISPLAY
KEY INT POWER
POWER LED
GC DGND
LED+9V
LED GND
NO USE
EVER +4V
VF(2)
VF(1)
VG
SPEANE GND
SPEANA
0
R111
2SC5053T100Q
Q325
680
R325
CN102
SW-LED
SW VOL
DGND
+9V
1
R108
R659
100
2SD2114KT146
Q180
2SD2114KT146
Q181
47k
R182
47k
R183
1k
R184
1k
R185
50V
4 . 7
C180
50V
4 . 7
C181
0.1
C580
2SD2525(TP)
Q585
1k
R575
1k
R578
HZU2.0BTRF
D584
0.1
C583
0.1
C582
1k
R588
1
2
3
4
5
6
7
8
8P
CN502
L-IN
PREGND
R-IN
DC DETECT
OVERLOAD DETECT
THERMAL VACS
STK MUTE
HP MUTE
1.8k
R553
56k
R551
25V
220
C553
50V
2.2
C552
16V
100
C550
0 . 1
C551
1
2
3
45
6
RT8H015C-T112-1
IC550
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN501
FRONT RELAY
LINK RELAY
AC CUT DETECT
A+9V
FAN DET
FR RY PROTECT
DBFB FB
POWER-GND
POWER-GND
DGND
UNREG
-B
-B
25V
4700
C566
0.01
C561
0.01
C560
10V
470
C563
0.1
C564
16V
100
C562
0.1
C565
JW566
VCC
GND
OUT
BA09T
IC560
VCC
GND
OUT
BA09T
IC561
TP947
JW567
0
R112
R326
1k
0.1
C581
5P
J103
L+R
D+4V
IIC DATA
IIC CLK
DGND
1
2
3
3P
CN580
FAN +
FAN -
1
3
4
5
6
7
7P
NO503
DGND
-VG
VF(1)
VF(2)
AC3
AC3
CLP01
CLP02 CLP03
CLP04 CLP05 CLP06 CLP07
1
2
3
4
IC565
PQ05RD21J00H
VIN
VOUT
GND
VC
10k
R610
10k
R611
0.1
C592
1
2
2P
NO504
USB +5V
GND
D595
MC2837
R637
100
10k
R577
1k
R181
1k
R180
MA111-TX
D101
MA111-TX
D102
MA111-TX
D550
D591
RB501V
-40TE-17
Q607
2SD2114KT146
50V
2 . 2
C620
1k
R666
1
C621
47k
R664
2 . 2 k
R665
1
2
3
4
5
6
7
8
8P
CN513
SW OUT
SW A-GND
SW RY
STK MUTE
UNREG
UNREG
OVERLOAD
DC DETECT
UDZW
-TE17-6.8B
D583
UDZW
-TE17-4.7B
D325
D540
RECT
D5SBA60
10k
R187
10k
R186
UDZW
-TE17-6.2B
D581
C591
10
V
470
C574
100
16V
0.1
C573
JL001
JL002
JL003 JL004
1
2
3
4
IC570
PQ09RD21J00H
RT1N430C-TP-1
Q550
D551
MA111-TX
RT1N141C-TP-1
Q603
RT1N141C-TP-1
Q590
Q580
2SC2712-YG-TE85L
Q581
2SC2712-YG-TE85L
RT1N430C-TP-1
Q584
Q582
2SC2712-YG-TE85L
Q587
2SD2525
1
2
3
CN581
3P
FAN +
FAN -
JW522
JW572
2.2k
R594
2.2k
R591
10k
R597
10k
R596
4.7k
R590
4.7k
R584
D582
UDZW
-TE17-13B
Q588
2SC2712-YG-TE85L
2SC2712-YG-TE85L
Q586
R589
100k
JW185
JW577
JW585
D3
D1
E10
E9
E8
E7
E6
E5
E4
E3
E2
E1
F1
F2
F3
F4
F6
F7
F8
F9
F10
F11
F6
F12
EPT560
(CHASSIS)
EPT561
(CHASSIS)
70
71
40
33
88
95
97
67
72
69
68
67
94
37
29
30
4
73
74
3301
TC BIAS GND
GC DGND
M GND
A GND
LIGHTING GND
CENTER GND
POWER GND
RPOTECTOR GND
FAN GND
REGULATOR GND
SW DGND
LED GND
DGND
MC DGND
USB GND
AA
SUBTRANS GND
SPEANA GND
MAIN BOARD ( 4 / 4 )
+9V REG
IC561
IC560
+9V REG
IC570
USB+9V REG
IC565
USB+5V REG
PROTECTOR
IC550
FAN +
DC FAN
M892
VIN
VOUT
GND
VC
DC FAN
M891
FAN +
Q587
FAN DRIVE
Q586,588
FAN DETECT
Q590,603
USB POWER CONTROL SWITCH
Q584
FAN CONTROL SWITCH
Q580,582
FAN DETECT
Q581
FAN HI SPEED CONTROL SWITCH
Q585
FAN DRIVE
MUTE
Q180,181
D+4V SWITCH
Q325
OVER VOLTAGE
Q550
DETECT SWITCH
CONTROL
SYSTEM
MUTE
Q607
CN102
SYNC OUT
D-LIGHT
J103
1
2
3
1
2
3
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