Sony DG510 - STR AV Receiver, Service Manual

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STR-DG510
17 17
STR-DG510
5-3. BLOCK DIAGRAM — VIDEO SECTION —
3
CH1 IN2
CH2 IN2
CH3 IN2
CH1 IN3
CH2 IN3
CH3 IN3
CHI OUT
CH2 OUT
CH3 OUT
5
9
11
14
12
2 4
Y
PB/CB
PR/CR
Y
SW1 SW2
COMP SW1 COMP SW2
PB/CB
PR/CR
J251 (1/2)
J201 (1/2)
22
75 Ω
DRIVER
6dB AMP
20
75
Ω
DRIVER
6dB AMP
18
75 Ω
DRIVER
6dB AMP
21
P.SAVE
COMP MUTE
13 2 11
12
J202 (1/2)
3
1
SAT
IN
DVD
IN
VIDEO
IN
VIDEO
IN
COMPONENT
VIDEO
-1
-2
-3
-4
-5
-6
Y
PR/CR
PB/CB
J251 (2/2)
MONITOR
OUT
COMPONENT
VIDEO
-7
10
75
Ω
DRIVER
6dB AMP
5
3 1
75 Ω
DRIVER
6dB AMP
-2
J201 (2/2)
J202 (2/2)
-8
-9
-1
VIDEO 1
DVD
SAT
-2
VIDEO
IN
-1
VIDEO
OUT
VIDEO 1
-3
VIDEO
OUT
MONITOR
+5V
REG
IC807
+5V-3
3 2
-5V
REG
IC804
-5V-3
COMP_S1
COMP_S2
V_SW2
V_SW3
COMP MUTE
V_SW1
COMP SW1
COMP SW2
V_SW2
V_SW3
COMP MUTE
V_SW1
SYSTEM CONTROL
IC1101 (3/6)
-5V
-5V-3
+5V
+5V-3
+16V
-16V
VOUT1
VOUT2
V-1,-2
-5V-3
V+1,+2
+5V-3
VIN1
VIN2
VIN3
V_SW1 V_SW2 V_SW3
SW2 SW1 MUTE
INPUT
SELECTOR
IC203
COMPONENT VIDEO SELECT
IC251
91
90
78
24
25
75
• Signal path
: VIDEO