Read Sony HCD-WZ7AV Service Manual online
20
20
HCD-WZ7AV
– MAIN Section –
: PB (TAPE)
: REC (TAPE)
: MIC
: AUDIO
: TUNER
• Signal Path
• R-CH is omitted due to same as L-CH
: MD
g
I/
i
L
R
MD(VIDEO)
IN
TUNER UNIT
L OUT
R OUT
R-CH
ST D OUT
ST DIN
ST CLK
ST CE
TUNED
R-CH
+9V
ST A+9V
STEREO
ST MUTE
J101(1/2)
L
R
DVD INPUT
FRONT
R-CH
J301(2/2)
MIC LEVEL
RV702
DXA-WZ7AV(2/3)
PB-L
INC2
38
IND2
37
MIC
2
SOUND PROCESSOR
IC101
HEADPHONE AMP
IC103
J603
R-CH
VRSWIN
SYSTEM CONTROL
IC401(2/2)
VOLUME
ENCODER
X401
32.768kHz
LCD201
15 X-IN
13
4 DIRECTION
SWITCH
S611-623
REMOTE
CONTROL
RECEIVER
IC601
S637
D602-606
10 XC-IN
11
X402
16MHz
X-OUT
XC-OUT
INA2
40
25
OUT2
DBFB
Q101
S601
68
REC B2
35
27
BB A2
INB2
39
ST-DOUT
45
ST-DIN
46
ST-CLK
47
TUNED
43
STEREO
42
ST-CE
44
77
HP/REC OUT MUTE
12
RESET
67
VOL A
VOL B
71
DISPLAY KEY
75
72
70
69
4
SIRCS
RESET
1
3
IC251
RESET
SWITCH
Q293
20
AC-CUT
A-MUTE
38
76
LED STANDBY
D601
PB-R
R-CH
MUTE
Q501
MUTE
CONT
CONT
Q521,523
REC-L
REC-R
R-CH
MUTE
Q502
MUTE
CONT
CONT
Q522,524
TA MUTE
AMS
Q583-585
IC581
3
5
2
IC501
REC
AMP
Q520
ST-MUTE
41
55
ALC
56
TC LINE-MUTE
57 TC REC-MUTE
54 AMS-IN
66 TA MUTE
SUR2
FRONT-L
R-CH
41
VACS
Q191
97
VACS IN
SA OUT
19
FUNC-SELECT
19
52
VOL-DATA
DATA
21
51
VOL-CLK
CLOCK
22
63
HEADPHONE IN
MUTE
Q171
MUTE
Q231
MUTE
CONT
CONT
Q272,273
MUTE
CONT
CONT
Q233,234
26
BB B2
36
REC A2
L
R
MD(VIDEO)
OUT
R-CH
J101(2/2)
3
1
24
SW OUT
R CH
DXA-WZ7AV(3/3)
FRONT-R
DBFB FB
IO EXP DATA OUT
IO EXP DATA IN
IO EXP CLK
IO EXP LAT
A SHUT
B SHUT
A TRG
B TRG
STK MUTE
CN CHECK
EVER +4V
EVER +4V
59
IO-EXP DATA IN
58
IO-EXP DATA OUT
61
IO EXP CLK
60
IO EXP LAT
89
A SHUT
65
STK MUTE
53
CN CHECK
90
B SHUT
91
A TRG
92
B TRG
81
LCD-DATA
82
LCD-CLK
83
LCD-ENB
84
LCD-RS
100
LCD RESET
FUNCTION
KEY
S631-636
S638-640
S638-640
95
AD KEY1
FUNCTION
KEY
94
AD KEY2
74
POWER KEY
S603
73
S602
DISPLAY
(STANDBY)
VOLUME
PUSH ENTER
LED
DRIVE
Q602-606
LED MD(VIDEO)
LED TAPE A/B
LED CD(DVD)
LED TUNER/BAND
LED AROUND PLAY
LED
DRIVE
Q601
D608,611-613
(BACK LIGHT)
LED
DRIVE
Q608,609
78
BACK-LIGHT3
79
BACK-LIGHT2
D402
D910
µ
COM
+VCC
4
7
IC202
MOTOR
DRIVE
85 LOAD-OUT
2
9
86 LOAD-IN
M
M001
(LOADING MOTOR)
87 OPEN-SW
OPEN
88 CLOSE-SW
CLOSE
29 IIC CLK
30 IIC DATA
D+3.3V
CN401
JIG
30
CD-POWER
+9V
REG
1
3
IC901
AU+9V
AUDIO_5V
ST A+9V
Q901
+5V
+5 V
REG
1
3
IC902
PB SW
Q581,582
30
39
µ
COM
D+3.3V
D294
D295
D403
D911-D913
LED +9V
M +7V
UNREG
SWITCH
B+
Q905
SWITCH
B+
CD PWR
CONTROL
Q902
CD PWR
CONTROL
Q906
RIPPLE
FILTER
Q382
A+4.5V
RIPPLE
FILTER
Q161
D+4V
AMP +9V
M +9V
FRONT-L
MIC AMP
IC702(1/2)
3
1
MIC AMP
MUTE
CD-L
LT-OUT
IC702(2/2)
6
7
ECHO
AMP
9
2
IC701
+
h
1
J701
h
2
J702
ECHO LEVEL
RV701
AUDIO/VIDEO
SECTION
I
AUDIO/VIDEO
SECTION
H
AUDIO/VIDEO
SECTION
F
AUDIO/VIDEO
SECTION
G
R-CH
R-CH
+2.5V
REG
1
3
IC201
D+5V(SW)
A+2.5V
+3.3V
REG
1
3
IC202
D+3.3V
+4.5V(BD)
+4.5V
REG
Q201
A+5V(SW)
+3.3V
+3.3V
REG
Q581
13
14
11
12
IC102
SELECTOR
Q102
INVERTER
Click on the first or last page to see other HCD-WZ7AV service manuals if exist.