Sony STR-K1600 Service Manual - Page 17

Block Diagram-video Video

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5-3. BLOCK DIAGRAM - VIDEO SECTION - J301 -1 Y -2 SAT PB/CB IN -3 PR/CR -4 Y -5 COMPONENT DVD PB/CB VIDEO IN -6 PR/CR -7 Y VIDEO 1 -8 IN PB/CB -9 PR/CR VIDEO 1 DVD SAT -1 J201 (1/2) VIDEO IN -2 J200 (1/2) VIDEO IN -1 VIDEO IN VIDEO 3 IN/ PORTABLE AV IN J298 (1/2) -1 VIDEO COMPONENT VIDEO SELECT IC304 1 CH1 IN1 3 CH1 IN2 5 CH1 IN3 7 CH2 IN1 9 CH2 IN2 11 CH2 IN3 16 CH3 IN1 14 CH3 IN2 12 CH3 IN3 SW1 2 COMP_S1 6dB AMP 6dB AMP 75Ω DRIVER V+1,+2 +5V-3 CHI OUT 22 75Ω DRIVER CH2 OUT 20 6dB AMP 75Ω DRIVER CH3 OUT 18 V-1,-2 -5V-3 SW2 4 P.SAVE 21 COMP_S2 V MUTE J302 Y -1 MONITOR PB/CB -2 OUT COMPONENT VIDEO PR/CR -3 V_SW1 V_SW2 INPUT SELECTOR IC203 V1 13 DVD 5 SAT 3 V3 9 SW2 SW5 SW1 13 2 10 D203 D204 SW3 6dB AMP VCC +5V-3 75Ω DRIVER M.OUT 1 6dB AMP 75Ω DRIVER V1 OUT 15 SW4 4 6 VEE -5V-3 V_SW3 V_SW4 +5V-3 -5V-3 IC807 3 +5V REG 1 IC804 3 -5V REG 2 +15V -15V J201 (2/2) -2 VIDEO OUT MONITOR J200 (2/2) -3 VIDEO OUT VIDEO 1 COMP_S1 COMP_S2 V MUTE V_SW1 V_SW2 V_SW3 V_SW4 SYSTEM CONTROL IC1101 (3/6) 91 COMP_S1 90 COMP_S2 78 COMP MUTE 24 V_SW1 25 V_SW2 25 V_SW2 76 V_SW4 • Signal path : VIDEO STR-K1600 STR-K1600 17 17

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STR-K1600
17
17
STR-K1600
5-3. BLOCK DIAGRAM — VIDEO SECTION —
1
CH1 IN1
CH2 IN2
CH2 IN1
CH3 IN2
CH3 IN1
CH1 IN2
CH2 IN3
CH3 IN3
CHI OUT
CH2 OUT
CH3 OUT
2
4
Y
P
B/
C
B
P
R/
C
R
Y
SW1
SW2
COMP_S1
COMP_S2
P
B/
C
B
P
R/
C
R
Y
P
B/
C
B
P
R/
C
R
J301
J201 (1/2)
22
75
Ω
DRIVER
6dB AMP
20
75
Ω
DRIVER
6dB AMP
18
75
Ω
DRIVER
6dB AMP
21
P.SAVE
V MUTE
13
D203
D204
10
4
13
J200 (1/2)
5
3
SAT
IN
DVD
IN
VIDEO 1
IN
VIDEO
IN
VIDEO
IN
COMPONENT
VIDEO
-1
-2
-3
-4
-5
-6
-7
-8
-9
Y
P
R/
C
R
P
B/
C
B
J302
MONITOR
OUT
COMPONENT
VIDEO
-1
1
75
Ω
DRIVER
6dB AMP
15
3
1
75
Ω
DRIVER
6dB AMP
-2
J201 (2/2)
J200 (2/2)
-2
-3
-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_SW4
COMP MUTE
V_SW1
COMP_S1
COMP_S2
V_SW2
V_SW4
V MUTE
V_SW1
SYSTEM CONTROL
IC1101 (3/6)
VEE
-5V-3
VCC
+5V-3
+15V
-15V
M.OUT
V1 OUT
V-1,-2
-5V-3
V+1,+2
+5V-3
V1
J298 (1/2)
9
VIDEO
-1
VIDEO 3 IN/
PORTABLE AV IN
V3
DVD
SAT
V_SW1
V_SW2
V_SW3
SW1
SW2
SW3
6
V_SW4
SW4
INPUT
SELECTOR
IC203
COMPONENT VIDEO SELECT
IC304
2
SW5
91
90
78
24
25
V_SW2
V_SW3
25
76
3
CH1 IN3
5
7
9
11
16
14
12
• Signal path
: VIDEO