Block Diagram - Video Section - Sony STR-DG520 Service Manual

5-3. BLOCK DIAGRAM – VIDEO Section –
COMPONENT VIDEO SELECT
J220 (1/2)
CH1 IN1
Y 1
-4 CH1 IN2
3
P C
B/ B
DVD
-5 CH2 IN1
8
IN
CH2 IN2
P C 10
R/ R
-6
CH3 IN1
COMPONENT
17
-1
VIDEO CH3 IN2
15
Y
-2
SAT
P C
B/ B
IN
-3
P C
R/ R COMPONENT
INPUT SELECT
IC210
J210 (1/2)
-1
VIN1
VIDEO
VIDEO 13
IN
J211 (1/2)
-1
VIN4
VIDEO
SAT 5
IN
-2
VIN5
VIDEO
DVD 3
IN
STR-DG520
IC220
V+1,+2
+5V-3
J220 (2/2)
6dB AMP
75Ω CHI OUT
24 Y
DRIVER
-7
6dB AMP
CH2 OUT
75Ω
22
P
B/
DRIVER
-8
6dB AMP
CH3 OUT
75Ω
P
20 R/
DRIVER
-9
V-1,-2
-5V-3
SW1 SW2 PS
2 4 23
COMPONENT
SW1 SW2 PS(V-MUTE)
6dB AMP
VOUT1
75Ω
DRIVER
6dB AMP
75Ω VOUT2
DRIVER
6 2 14 10 4
D211
D210
COMPOSITE
SW1
COMPONENT
MONITOR
C VIDEO
B OUT
C
R
IC201
+5V
+15V
+5V-3 3 1
REG
IC202
-5V
-5V-3 -15V
3 2
+5V
REG
+5V-3
1
15
COMPONENT SW1
-5V
COMPONENT SW2
-5V-3
PS(V-MUTE)
COMPOSITE SW1
COMPOSITE SW2
COMPOSITE SW3
COMPOSITE SW4
17 17
J210 (2/2)
-2
VIDEO
MONITOR
OUT
J211 (2/2)
-3
VIDEO
VIDEO
OUT
SYSTEM CONTROL
IC1101 (3/6)
4 COMP_S1
• Signal path
3 COMP_S2
: VIDEO
2 V_MUTE
5 V_SW1
6 V_SW2
7 V_SW3
9 V_SW4
STR-DG520