Schematic Diagram - Video Board - Sony STR-DG820 Service Manual

6-27. SCHEMATIC DIAGRAM - VIDEO Board -

1 2
A
B
C
J220
Y
DVD IN P / C
B B
P / C
R R
D
Y
COMPONENT VIDEO 1
P / C
B B
VIDEO IN
P / C
R R
E
Y
MONITOR
P / C
B B
OUT
P / C
R R
F
(CHASSIS)
G
STR-DG820
• See page 48 for IC Block Diagrams.
3 4 5
J221
VIDEO BOARD
R229 R227 R224
R228 R226 R225
75 75
75 75 75 75
C228
10
50V
C224
C227
10 10
50V 50V
1 2 3 4 5 6 7 8 9
IC220
NJM2586AM
24 23 22 21 20 19 18 17 16
C229
10
50V
R276
75
R277
75
R278
75
C233
0.1
IC220
IC B/D
VIDEO AMP
6 7 8
COMPONENT
VIDEO
SAT IN MONITOR VIDEO 1
P / C P / C Y VIDEO OUT VIDEO IN VIDEO OUT
R R B B
J210
(CHASSIS)
R222 R221
R215
75 75
75
C213
10
50V
C223 C222 C221
10 10 10
50V 50V 50V
C226
C225
10
10
50V
50V
10 11 12 1 2 3 4 5 6
IC210
NJM2595M-TE2
15 14 13 16 15 14 13 12 11
C204
C217
47
0.1
16V
C203
C232 C215
47
0.1 0.1
16V
41 41
9 10
DVD SAT
VIDEO IN VIDEO IN
J211
(CHASSIS)
CNP242
3P
1 VGND
R212 R211 R242
2 DMPORT_VIDEO
75 75
75
3 VGND
C212
C211
10 10
50V 50V
C242
10
50V
CNS271
7P
1
V_SW4
2 V_SW3
3 V_SW2
D211
MA2J1110GLS0 4 V_SW1
5 COMP_S1
6 COMP_S2
7 PS (V-MUTE)
7 8
IC B/D
IC210
VIDEO AMP
10 9
IC202
IC202
-5V REGULATOR
TA79005SB
-4.9 -16. 4
C240 10 50V
O I
3 1
R240
G
75
CNP240
2
3P
1 V-GND
2 V2 SIGNAL
C202 C201
3
0.47 0.47 V-GND
2
4.9 G 15. 9
O I 4
+15V
3 1
3 GND
IC201
TA7805S
2
NC
IC201
1 -15V
CNP203
4P
+5V REGULATOR
STR-DG820
11 12
AB
DIGITAL AUDIO
BOARD
(2/2)
CN2227
(Page 35)
AC
MICOM
BOARD
CN7010
(Page 37)
AP
FRONT V2
BOARD
CN725
(Page 43)
G
MAIN
BOARD
(3/3)
CN500
(Page 23)