Schematic Diagram -Video Section - Sony HCD-GZR7D Service Manual

HCD-GZR7D/GZR8D/GZR9D
Q Q
3 7 6 3 1 5 1 5 0
7-25. SCHEMATIC DIAGRAM – VIDEO Section –
1
CN901
A
V
15
D-GND
14
C
13
D-GND 12
Y
11
D-GND
10
DMB18
Y/G
9
BOARD D
D-GND
8
( 2 / 5 )
CN303 Cb/B 7
B
(Page 54)
WIDE
6
Cr/R 5
DSEL/DISCXEXT
4
RGBSEL
3
V-SW
2
V-MUTE
1
C T E
L 1 3 9 4 2 2 9 6 5 1 3
CN903
3P
GND
1
REGULATOR
D
O
BOARD 5V
2
CN075
GND
3
(Page 72)
E
w w w
HCD-GZR7D/GZR8D/GZR9D
• See page 85 for IC Block Diagrams.
2 3
VIDEO BOARD
15P
C902 1 50V
C903 1 50V
C904 1 50V
C905 0 . 1
R902
100
C906 22
C907 1 50V
C908 1 50V
TP901
C909 1 50V
C910 0 . 1
R911
10k
C911 100
C926
1
50V
L901
C927
10uH
1
x a o
y
. i
http://www.xiaoyu163.com
4 5
IC901
COMPONENT VIDEO/S VIDEO AMP
IC901
IC B/D
MM1758XFBE
2.3
GND2
CR IN
14 15 C914
0 0.1
MUTE2
13 CR OUT 16
2.3
GND2
12 CB IN 17 C915
0.1
CB OUT
11 CLP 18
0
GND2
10 CY IN 19
C916
3.3 0.1
CY OUT
9 I / P
20
2.6 0.1
Y OUT
8 BIAS 21
50V
C917
GND2
7 GND1 22
0 0
Y IN
6 23
CVBS OUT
5.3
S2
5 YC MIX 24
0 3.3
S1
4 CVBS IN
25
0 1.1
C OUT
3 MUTE1 26
2.3 4.9
C IN
2 27
S-DC OUT
R914
5.3 5.3
VCC2
1 VCC1 28
75
R910
10V
75
R901 100 TP902
Q Q
3 7 6
C929
IC902
C928
100
MM1508XNRE
0 . 0 1
16V
1.4 5.3
VCC
4 3
1.3
GND
5 2
C930
1.4 3.2
1000
6 1
6.3V
50V
R912
IC902
IC B/D
100
VIDEO SELECTOR
u 1 6 3
68 68
2 4
8 9 9
6 7
1000 6.3V R904 75 FB901 0
1000 6.3V R905 75 FB902 0
1000 6.3V R906 75 FB903 0
1000 6.3V R907 75 FB904 0
C912
JR901
0 . 1
R909 FB906
0
50V
75 0
E
EP902
R903
10k
3 1 5 1 5 0 8 9
C923 C924
22p 22p
R913 FB907
75 0
C921
22p
FB908 R915
0 75
m
c o
.
2
8 9 9
8
- 1
P / C
R R
J901
3P
- 2 COMPONENT
P / C
B B
VIDEO OUT
- 3
Y
J904
5P
2 4 9 8 2 9 9
4
3
S VIDEO
2 1
OUT
G
JR902
0
E
EP901
J902
1P
VIDEO OUT
J903
1P
VIDEO/SAT
VIDEO IN