Sony MHC-VX888 (serv.man2) Service Manual ▷ View online
45
45
HCD-VX888
6-27. SCHEMATIC DIAGRAM – VIDEO Board (2/3) –
•
See page 50 for Waveforms.
4.9
4.9
4.9
0.3
1
VIDEO BOARD
(1/3)
4
VIDEO
BOARD
(3/3)
5
VIDEO
BOARD
(3/3)
NC
A16
A15
A16
A15
A12
A7
A7
A6
A5
A4
A4
A3
A2
A1
A0
A2
A1
A0
O0
O1
O2
GND
O1
O2
GND
VCC
IC510
LC372100PM
-K98-TLA
NC
A17
A14
A13
A13
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
O5
O4
O3
VIDEO SIGNAL PROC.
MPEG VIDEO/AUDIO DECODER
(Page 44)
(Page 46)
(Page 46)
46
46
HCD-VX888
6-28. SCHEMATIC DIAGRAM – VIDEO Board (3/3) –
•
See page 50 for Waveforms.
R
VIDEO SWITCH
BOARD
CN781
5
VIDEO BOARD
(2/3)
4
VIDEO BOARD
(2/3)
3
VIDEO BOARD
(1/3)
2
VIDEO
BOARD
(1/3)
C AMP
Y AMP
(Page
44)
(Page 44)
(Page 45)
(Page 45)
(Page 35)
47
47
HCD-VX888
6-29. PRINTED WIRING BOARD – VIDEO Board –
•
See page 27 for Circuit Boards Location.
D501
B-3
IC302
A-3
IC304
A-1
IC501
C-2
IC502
D-2
IC510
B-1
Q301
B-3
Q531
B-3
IC101
E-3
IC303
A-3
IC504
D-3
IC505
C-2
IC507
C-7
IC509
D-3
Q501
B-1
Q502
B-1
• Semiconductor
Location
Ref. No.
Location
• Semiconductor
Location
Ref. No.
Location
IC 101
IC 504
IC 505
IC 509
IC 507
IC 303
1
7
8
14
B
MAIN BOARD
CN201
N
BD BOARD
CN101
IC 304
IC 501
IC 502
IC 302
IC 510
J301
2
1
3
4
1
8
9
16
1
100
30
31
50
51
80
81
R
VIDEO SWITCH
BOARD
CN781
1
3
(Page 29)
(Page 35)
(Page 34)
48
48
HCD-VX888
6-30. SCHEMATIC DIAGRAM – MAIN TRANS/SUB TRANS Board –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
no mark : FM
(Page 36)
(Page 36)
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