Sony MHC-VX888 (serv.man2) Service Manual ▷ View online
41
41
HCD-VX888
PAD SWITCH BOARD
VOLUME
S751
ROTARY ENCODER
9
1
J
PANEL BOARD
NO604
S752 – 781
E
E
PLAY MODE
MOVIE EQ
SURRUND
GROOVE
ENTER
B
>
.
X
g G
x
b
v
V
EDIT
SPECTRUM
DISPLAY
MUSIC EQ
GAME EQ
KARAOKE PON
P FILE
REPEAT
1-680-262-
11
(12)
EFECT
ON/OFF
>
+
.
–
REC
PAUSE/START
CD SYNC
HI-DUB
REW
FF
D751, S764
ENTER
PICTURE
EFECT
CD-SW BOARD
E
(CD)
Z
DISC SKIP/
EX-CHANGE
OPEN
CLOSE
CLOSE
DISC 3
D793, S793
DISC 1
D791, S795
DISC 2
D792, S794
E
E
E
D794, S796
9
1
K
PANEL BOARD
NO602
I/1
S791 – 796
1-680-263-
11
(12)
B
C
D
E
F
A
1
2
3
4
5
6
7
8
9
10
6-21. PRINTED WIRING BOARDS – CD SWITCH/PAD SWITCH Board –
•
See page 27 for Circuit Boards Location.
There are a few cases that the part printed on
this diagram isn’t mounted in this model.
this diagram isn’t mounted in this model.
• Semiconductor
Location
Ref. No.
Location
D751
F-2
D752
C-3
D791
A-6
D792
A-5
D793
A-4
D794
A-10
Q751
D-2
Q752
C-2
Q791
A-8
Q792
A-7
Q793
A-3
Q794
A-10
(Page 39)
(Page 39)
42
42
HCD-VX888
6-22. SCHEMATIC DIAGRAM – LEAF SW Board –
(Page 33)
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAY
(
no mark : TAPE PLAY
(
) : TAPE REC
6-23. PRINTED WIRING BOARDS – LEAF SW Board –
•
See page 27 for Circuit Boards Location.
There are a few cases that the part printed on
this diagram isn’t mounted in this model.
this diagram isn’t mounted in this model.
PM901
PM902
F
CN304
IC1001
IC1002
A
B
C
D
1
2
3
4
5
6
7
8
9
10
11
12
(Page 34)
• Semiconductor
Location
Ref. No.
Location
D1001
B-4
D1002
B-10
IC1001
B-2
IC1002
B-10
Q1001
B-3
43
43
HCD-VX888
6-24. SCHEMATIC DIAGRAM – ADDRESS SENSOR/DRIVER/MOTOR Board –
•
See page 54 for IC Block Diagram.
(2/4)
IC B/D
(Page 31)
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : CD STOP
no mark : CD STOP
6-25. PRINTED WIRING BOARDS – ADDRESS SENSOR/DRIVER/MOTOR Board –
•
See page 27 for Circuit Boards Location.
There are a few cases that the part printed on
this diagram isn’t mounted in this model.
this diagram isn’t mounted in this model.
14
(14)
14
(14)
14
(14)
C712
CN202
A
IC711
IC701
A
B
C
D
1
2
3
4
5
6
7
8
9
10
11
12
D701
C-9
IC701
G-10
IC711
C-6
• Semiconductor
Location
Ref. No.
Location
(Page 34)
44
44
HCD-VX888
6-26. SCHEMATIC DIAGRAM – VIDEO Board (1/3) –
•
See page 50 for Waveforms.
•
See page 55 for IC Pin Function Description.
BD BOARD
CN101
1
VIDEO BOARD
(2/3)
2
VIDEO BOARD
(3/3)
3
VIDEO
BOARD
(3/3)
B
MAIN
BOARD (2/4)
CN201
(Page 28)
(Page 31)
(Page 45)
(Page 46)
(Page 46)
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