Read Sony DXA-WZ8D / MHC-WZ8D Service Manual online
11
11
DXA-WZ8D
4-1. Block Diagram
: 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
T302
RELAY
DRIVE
Q601
RY601
AC
IN
R-PB
A SHUT
B SHUT
R-CH
L-REC
R-REC
R-CH
GND
MUTE
CONT
CONT
JW604
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
12
TH VACS
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-WZ8D
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
PROTECT
SWITCH
Q536,537
+VL
TH531
OVER HEAT
DETECTOR
17
PWR RY
18
FAN CNT
D501
D742
Q521
Q534,535
TH
VACS
Q531,532
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
AUS
E2, E3, E15,EA,
MY, SP, PH
MY, SP, PH
KR, TH
AEP, UK, RU
AC2
+VH
-VH
AC1
AC1
D102
DVD AC
DVD AC
D251
IC251
VCC
VCC
DVD MUTE
DBFB FB
STK MUTE
TA 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
REAR-R
REAR-L
JW603
JW602
S601
VOLTAGE
SELECTOR
SWITCHING
REGULATOR
EVER+4V
RY403
13
15
14
MUTE
Q731
Q741
PROTECT
DETECTOR
CENTER
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