Schematic Diagram -Video Section - Sony HCD-GZR9D Service Manual

HCD-GZR7D/GZR8D/GZR9D
Ver. 1.1
7-25. SCHEMATIC DIAGRAM – VIDEO Section –
1
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 )
Cb/B
CN303 7
B (Page 54)
WIDE
6
Cr/R
5
DSEL/DISCXEXT 4
RGBSEL
3
V-SW
2
V-MUTE
1
C
CN903
GND
1
REGULATOR
D
O
BOARD 5V
2
CN075
GND
3
(Page 72)
E
HCD-GZR7D/GZR8D/GZR9D
• See page 85 for IC Block Diagrams.
2 3
VIDEO BOARD
CN901
15P
C902 1
C903 1
C904 1
C905 0 . 1
R902
100
C906 22
C907 1
C908 1
TP901
C909 1
C910
R911
10k
C911 100
3P
L901
10uH
1
4 5
IC901
COMPONENT VIDEO/S VIDEO AMP
IC901
IC B/D
MM1758AFBE
50V
2.3
GND2
14 CR IN 15
C914
0 0.1
MUTE2
13 CR OUT 16
50V 2.3
GND2
CB IN
12 17 C915
0.1
CB OUT
CLP 18
11
50V
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
GND1
7 22
50V
0 0
Y IN
6 23
CVBS OUT
5.3
S2
5 YC MIX 24
50V
0 3.3
S1
4 CVBS IN 25
0 1.1
C OUT
3 MUTE1 26
50V 2.3 4.9
C IN
2 27
S-DC OUT
0 . 1 R914
5.3 5.3
VCC2
1 VCC1 28
R910
10V
TP902
R901 100
C929
IC902
C926 C928
100
MM1508XNRE
1 0 . 0 1
16V
50V
1.4 5.3
VCC
4 3
1.3
GND
5 2
C930
1.4 3.2
1000
6 1
6.3V
C927
50V
R912
IC902
IC B/D
100
VIDEO SELECTOR
68 68
6
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
EP902
R903
75
10k
75
C923
22p
R913 FB907
75 0
C921
22p
FB908 R915
0 75
7 8
- 1
P / C
R R
J901
3P
- 2 COMPONENT
P / C
B B
VIDEO OUT
- 3
Y
E
J904
5P
4 3
S VIDEO
2 1
OUT
C924
G
22p
JR902
0
E
EP901
J902
1P
VIDEO OUT
J903
1P
VIDEO/SAT
VIDEO IN