Sony DXA-WZ88D / MHC-WZ88D Service Manual ▷ View online
13
13
DXA-WZ88D
DXA-WZ88D
: REC (TAPE)
: AUDIO
• Signal Path
• R-CH is omitted due to same as L-CH.
: PB (TAPE)
TAPE DECK
BLOCK
BLOCK
L-PB
TRANSFORMER
POWER
T602
RELAY
DRIVE
Q601
RY601
AC
IN
R-PB
A SHUT
B SHUT
R-CH
L-REC
R-REC
R-CH
GND
MUTE
CONT
CONT
RY402
14
15
12
9
8
POWER AMP
IC501
Q536,537
5
2
IC301
L-PB
R-PB
R-CH
1
BIAS
8
7
16
5
6
7
IC303
CNT BIAS
REC SWITCH
Q312,314
REC CONT
Q308-310
PB SWITCH
Q303
PB CONT
Q306,307
BIAS
OSC
Q301
T301
BIAS
BIAS
E HOT
BIAS
SWITCH
Q304
BIAS
CONT
Q305
BIAS
21
I/O EXP DATA OUT
I/O EXPANDER
I/O EXP DATA IN
I/O EXP CLK
I/O EXP LAT
UNREG
EVER +4V
CN CHECK
AMP+9V
AMP+9V
M+9V
REC-L
REC-R
PB-R
PB-L
B SHUT
A SHUT
R-CH
R-CH
IC251
A/B
23
20
FR RY
19
SUR RY
11
PROTECT
REC/PB
22
A PLAY
B PLAY
A HALF
B HALF
REC(FWD)
REC (REW)
CAP M+
MOTOR
DRIVE
Q353,356
A TRG
SOLENOID
DRIVE
SOLENOID
DRIVE
Q351,355
B TRG
Q352,354
A PLAY
5
B PLAY
9
A HALF
6
B HALF
8
REC(FWD)
7
REC(REW)
10
CAP-M
24
HCD-WZ88D
3
1
4
IC201
PROTECTOR
25
DO2
26
DI
3
CLK
4
LATCH
A TRG
B TRG
MUTE
Q533
MUTE
CONT
CONT
Q204,206
MUTE
Q501
R-CH
FRONT L
FRONT R
SURR L
SURR R
CENTER
TM401(1/2)
SPEAKER
FAN301
FAN
DRIVE
Q209,211,212
FAN
CONTROL
Q213,214
PROTECT
SWITCH
Q536,537
+VL
TH531
OVER HEAT
DETECTOR
17
PRM RY
18
LED CTRL
D501
D742
Q521
Q534,535
PROTECT
DETECTOR
Q403
RELAY
DRIVE
D101
+9V
REG
1
3
IC302
+VL
D103
AC3
AC3
AC4
AC4
D301
R-CH
D402
+3.3V
REG
Q101
D+3.3V
Q202
D202
D201
AC
DET
Q203,205
M+9V
-VL
AC2
TH,AR,AUS
EXCEPT TH,AR,AUS
AC2
+VH
-VH
AC1
AC1
D102
DVD AC
DVD AC
D251
IC251
VCC
VCC
DVD MUTE
DBFB FB
STK MUTE
TA MUTE
HP MUTE
FRONT-R
FRONT-L
RY401
8
3
9
POWER AMP(SL,SR,C)
IC701
MUTE
Q701
R-CH
TM401(2/2)
Q711
PROTECT
DETECTOR
Q401
RELAY
DRIVE
Q500
LED
DRIVE
REAR-R
REAR-L
S601
VOLTAGE
SELECTOR
POWER
SWITCHING
UNIT
EVER+4V
RY403
13
15
14
MUTE
Q731
Q741
PROTECT
DETECTOR
CENTER
D501
D500
+9V
4-1. BLOCK DIAGRAM
14
14
DXA-WZ88D
DXA-WZ88D
4-2. PRINTED WIRING BOARD – TC MAIN SECTION –
HCD-WZ88D
TH,AR
HCD-WZ88D
TM401
SURR R
FRONT R
CENTER
SURR L
EA,AUS
FRONT L
SURROUND AMP
C
7
9
FRONT AMP
B
5
7
EXCEPT TH,AR,AUS
ING
(CHASSIS)
EXCEPT
EA,AUS
EXCEPT
EA,AUS
EXCEPT
EA,AUS
EA,AUS
EXCEPT
EA,AUS
EA,AUS
EA,AUS
EA,AUS
FRONT AMP
SURROUND AMP
(Page 19)
17
D
NO703
ME CHANISM
(SIDE A LIGHT)
(SIDE B LIGHT)
AUS
25
IC301
IC303
IC201
IC251
IC302
1
2
A
B
C
D
E
G
H
F
3
4
5
6
7
9
8
10
11
I
:Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
D101
C-9
D102
C-8
D103
B-8
D111
A-6
D201
H-5
D202
H-5
D203
E-4
D204
E-3
D205
E-4
D207
E-4
D208
E-4
D209
F-4
D210
D-6
D211
D-6
D251
F-4
D301
B-7
D351
E-6
D352
E-6
D401
H-4
D402
G-5
D403
H-4
D404
G-4
D500
B-10
D501
H-11
D911
C-3
IC201
H-5
IC251
F-5
IC301
H-9
IC302
B-7
IC303
I-8
Q101
B-6
Q202
H-6
Q203
H-6
Q204
E-3
Q205
H-6
Q206
E-3
Q209
E-3
Q211
E-3
Q212
E-3
Q213
E-3
Q214
E-4
Q301
E-9
Q302
G-9
Q303
G-9
Q304
F-8
Q305
F-8
Q306
G-8
Q307
G-9
Q308
G-8
Q309
H-8
Q310
G-8
Q311
G-9
Q312
G-9
Q313
G-9
Q314
G-9
Q351
E-6
Q352
E-6
Q353
E-6
Q354
E-5
Q355
E-5
Q356
E-5
Q401
H-5
Q403
G-5
Q500
H-11
Q601
C-3
15
15
DXA-WZ88D
DXA-WZ88D
4-3. SCHEMATIC DIAGRAM – TC MAIN SECTION (1/2) –
34
35
OSC
TC MAIN BOARD
(1 / 2)
TC LED BOARD
TC MAIN
MECHANISM
SANKEN
(SIDE A LIGHT)
(SIDE B LIGHT)
DVD STOP
C107
C108
D103
R103
R104
C111
3300
71V
3300
71V
C112
D102
C251
C
320
C319
R315
C312
C302
C351
R352
C352
R351
R353
R358
R359
R360
R366
R365
R364
R363
R362
R361
R367
R368
D351
D352
C305
C318
FB300 0
C308
C118
C120
C303
C317
R
26
3
R328
R329
R369
R370
C114
IC302
R330
C327
LED
GND
GND
+9V
+9V
2
4
C328
L302
100uH
L303
L3
04
C
330
C3
04
C315
F102
F101 T6.3AL/250V
T6.3AL/250V
T6.3AL/250V
T4AL/250V
T6.3AL/250V
F103
F104
F105
R308
C309
C333
C334
C337
R
34
3
R344
R204
R201
R203
R
254
R
25
2
R
251
R
25
3
R
2
56
R
2
57
R
2
58
R
25
9
R
2
60
C252
R31
6
R322
R324
R321
R323
C322
C321
R311
R307
R305
R320
R318
R314
T301
R354
R355
R357
R356
C316
C307
C311
R319
R317
R
26
1
R
2
55
R128
D111
R325
C
32
3
C353
C354
C324
NO13
NO12
C102
0
C
25
3
R334
IC301
R
30
3
R
3
04
R306
R
3
10
R309
FB303
0
R335
R338
R336
C313
C
25
5
R
3
40
C326
R341
C
33
1
CN351
C301
100V
C314
R312
R302
R
3
13
C
329
C332
R
3
27
R
3
26
R331
CN302
CN301
C105
C106
C338
C
3
25
R
3
39
R337
Q312
Q314
Q313
Q311
Q
31
0
Q
30
8
Q30
9
Q3
0
6
Q307
Q303
Q302
Q304
Q305
C306
Q352
Q301
Q354
Q355
Q356
Q
3
53
Q
3
51
IC251
Q101
C113
4700
4700
D301
CN102
D101
C103
0.1
0.1
C104
C109
3300
3300
C110
IC303
D251
NO11
0.1
0.1
D3SBA20
100k
R231
0
100k
D5SBA20
0.1
0
.0022
0.00
22
4.7k
0.01
0.0047
0.0047
680
0.0047
680
47k
3.3k
3.3k
3.3k
10k
10k
10k
10k
10k
10k
10k
10k
1SS355TE
1SS355TE
0.0015
0.0012
22
50V
10
50V
10
50V
0.0015
0.0012
10
k
2.2k
2.2k
100
100
0
BA09T
22k
680p
680p
27M
H
27M
H
1
00p
0.0
1
C
3
10
0.1
0.01
100
100
10V
10V
4700p
4700p
330p
33k
33k
100k
4.7k
4.7k
1
K
100
10
0
100
100
1
00
1
00
1
00
1
00
10
50V
8.2k
1k
1k
1k
1k
0.001
0.001
10
10k
47
4.7k
4.7k
47k
2.2k
2.2k
2.2k
2.2k
0.47
50V
0.47
50V
220
10V
10V
10k
10k
10
0
1
00
1k
UDZSTE-173.9B
10k
1
50
V
470
16V
16V
10
50V
10
50V
0
.1
6.8k
BA3402
33
0
k
12
k
100
1
2k
330k
33k
33k
100
22
50V
470
p
2
20
100 10V
220
4
.7
50
V
13P
0.01
0.00
68
33
3.3k
8.2k
1
00
p
1
00V
1
00
V
4.7
50V
50V
1
00
15k
22k
8P
FB302
0
3P
CN303
NO303
WIRE
WIRE
5P
0.1
100V
100V
100V
0.1
330p
1
0
50
V
100
6.8k
2SC3661
2SC3661
2SC3661
2SC3661
2S
A
1
23
5_
F
D
TC
114EKA
-T14
6
D
TC
11
4EK
A
-T146
D
TC1
14EK
A-T146
DTA114EKA-T146
2SC3661
2SC3661
RT1P137L-TP
DTC114EKA-T146
47
16V
2SB1116A-L
2SC2001-LK
DTC114EKA
-T146
DTC114EKA
-T146
DTC114EKA
-T146
2S
B1116
A-L
2S
B1116
A-L
PT8300R-TP
2SC2412k_T_146_R
25V
10EDB40-TB5
9P
D5SBA20
50V
50V
NJM4580V(TE2)
1SS355
TE-17
C501
R501
R500
R502
CN500
1.0FFC-L
D500
D501
R503
Q500
0.01
750
750
750
5P
10k
1/10W
DTC114EKA
•
See page 12 for Waveform.
16
16
DXA-WZ88D
DXA-WZ88D
4-4. SCHEMATIC DIAGRAM – TC MAIN SECTION (2/2) –
5.6
6.2
3.4
0
14.6
6.2
0.9
0.7
TH,AR
AUS
EXCEPT TH,AR,AUS
34
35
C
SL
SR
TC MAIN BOARD
(2 / 2)
SURR R
+
-
SURR L
FRONT R
FRONT L
DVD STOP
CENTER
SPEAKER
Q401,403
+
-
+
-
+
-
+
-
D
TC MAIN
HCD-WZ88D
HCD-WZ88D
C CH
MUTE
PROTECT
SR CH
PRE GND
SL CH
C
SURROUND AMP
(Page 20)
CN701
BOARD
1
6
SURROUND AMP
(Page 20)
NO703
BOARD
FRONT AMP
(Page 18)
CN502
BOARD
FRONT AMP
(Page 18)
CN501
BOARD
T4AL/250V
6
JR226 0
HP MUTE
C209
C207
C205
C201
R432
R433
L404
R428
L403
JW123
JW124
R427
C414
0.01
C412
0.01
C413
0.01
C415
0.01
R414
R405 47K
R419
RY403
R401
R403
C211
R217
R221
R220
C206
C210
C208
R219
R218
IC201
R209
C216
D210
10EDB40
D211
10EDB40
R207
R202
R410
R206
R205
C202
C203
C402
C407
C405
C408
R411
8.2 1W
R422
R413
R415
R216
R210
R211
R212
CN204
R423
NO1
D911
Q601
C603
R601
L601
100uH
100uH
C601
C602
F601
JW612
JW611
JW604
JW603
S601
CN606
NO802
D201
D202
C204
Q204
Q206
D208
R222 10K
D205
D207
Q209
Q211
Q212
Q203
Q202
Q205
D204
D209
JR214
0
CN205
NO809
19P
D402
D404
Q403
RY402
RY401
NO702
R417
CN206
JW101
CN605
NO801
RY601
TM401
220
10V
10V
10
50V
50V
100
10V
10V
10
50V
2.2k
10k
68k
R402
47k
R404
68k
47k
4.7
50V
50V
22k
4.7k
47k
0.01
47
16V
0.01
22k
100
RT8H015C
100
0.01
4.7k
2.2k
100k
2.2K
22k
10
50V
10
50V
47k
22k
22k
220k
1k
1k
1k
3P
47k
47k
WIRE
1SS355TE
2SC2412K
0.1
4.7k
0.1
0.1
2P
7P
1SS355
TE-17
1SS355
TE-17
10
50V
C217
0.1
C218
0.1
DTA114EKA
-T146
Q213
DTC114EKA-T146
FAN CONTROL
Q214
DTC114EKA
-T146
-T146
FAN DRIVE
DTC114EKA
-T146
0
0
0
2SD2525(TP)
2SC2412K
2SC2412K
2SC2412K
2SC2412K
2SC2412K
UDZSTE-176.8B
D203
UDZSTE-176.2B
1SS355
1SS355TE
1SS355TE
2SC2412K
Q401
2SC3661
RELAY
12V
R408
R409
R412
8.21W
8.21W
D403
1k
R421
47k
47k
R420
R425
47k
10k
1SS355TE
R406
8.2
1W
1W
D401
1SS355
8P
CN401 7P
2.7k
20P
2P
10 1/2W
10 1/2W
10 1/2W
10 1/2W
10 1/2W
10 1/2W
10 1/2W
0.1
0.1
10 1/2W
0.1
0.1
10 1/2W
0.1
0.1
10 1/2W
0.1
0.1
10 1/2W
0.1
0.1
R434
L405
R429
C406
C410
R430
L402
R426
C403
C411
R431
L401
JW121
JW122
R424
EA,AUS
EA,AUS
EA,AUS
EA,AUS
EA,AUS
EXCEPT
EA,AUS
EA,AUS
EXCEPT
EA,AUS
EA,AUS
EXCEPT
EA,AUS
EA,AUS
EXCEPT
EA,AUS
EA,AUS
EXCEPT
EA,AUS
EA,AUS
C404
C409
2
2
2
2
2
2
4P
EP601
*
*
*
*
*
*
*
JW125
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