Schematic Diagram - A_Video Board (2/4) - Sony STR-DA4300ES Service Manual

6-67. SCHEMATIC DIAGRAM – A_VIDEO Board (2/4) –
1 1 2 2
A_VIDEO BOARD (2/4)
A A
1
71
A_VIDEO
2
BOARD
(1/4)
(Page 90)
B B
3
C C
D D
E E
R6118
75
4
73
R6119
75
5
A_VIDEO
R6120
BOARD
75
(1/4) 6
(Page 90)
F F
77
9
A_VIDEO
BOARD
10
(3/4)
G G (Page 92)
H H
24
78
22
I I
A_VIDEO
BOARD
(4/4)
(Page 93)
23
J J
STR-DA4300ES
• See page 110 for IC Block Diagrams.
3 3 4 4 5 5
Q6103
2SC3052EF-T1-LEF
VIDEO AMP
IC6104
IC B/D
VIDEO MUTING
C6116
47
IC6104
25V
NJM2586AM
CH3IN3
13 CH2IN3 12
GND
14 11
GND
CH3IN2
15 10
CH2IN2
C6117
-5 V-1
47
16 GND 9
25V
0 CH3IN1 0
17 8
CH2IN1
-5
5
V-2
18 7
V+1
GND
19 GND 6
0
CH3OUT2
20 CH1IN3 5
5
V+2
21 4
SW2
0
CH2OUT
22 3
CH1IN2
C6118
2.5
PS 47
23 SW1 2
25V
0 0
CH1OUT
24 1
CH1IN1
C6108 C6107
R6121
R6123
47
300
0.01
25V
C6110 C6111 R6122
47 0.01
300
25V
-5 -5
-5V
19 -5V 18
CR_OUT 0
20 17
CR_IN
2.5
NC
21 16
MUTE2
0
CB_OUT
22 15
CB_IN
23 GND GND 14
Y_OUT
24 13
DCCNT2
5
0
+5V
25 Y_IN 12
26 NC NC 11
-5
-5V
27 10
NC
-5 -5V
28 NC(DCCNT2) 9
0
29 Y_OUT Y_IN 8
2.5
30 NC 7
MUTE1
0
C_OUT
31 6
C_IN
GND
32 GND 5
0 VIDEO_OUT
33 4
DCCNT1
5 0
+5V
34 3
VIDEO_IN
35 NC NC 2
36 NC NC 1
IC6103
IC6103
LA73053-TLM-E
IC B/D
VIDEO AMP
6 6 7 7 8 8
IC6101
LA7213
1 2 3 4 5
R6105
4.7k
R6101
330
C6101
3.3
50V
R6124
330
R6103 C6105
0.1
150k
C6103
100
10V
IC6102
LA7213
Q6104
2SC3052EF-T1-LEF
300
VIDEO AMP
1 2 3 4 5
R6106
4.7k
R6102
330
C6102
3.3
50V
R6125
330
C6106
R6104
0.1
150k
C6104
100
10V
IC6204
C6115
47 NJM2533M(TE2)
25V IC6204
5 NC NC 4
VIDEO SELECT
5 2.5
6 V+ VIN_2 3
1.7 0
7 2
V_OUT SW1
2.5
8 1
GND VIN_1
R6117 IC B/D
C6233
C6234
47k 47
0.1
25V
91 91
9 9 10 10 11 11
IC6101
SYNC DETECT
IC B/D
R6110
1k
COMPO_DET
0
D6101
MA2J1110GLS0
3.6
Q6101
RT1N441C-TP-1
INVERTER
C6109
1000
6.3V
IC6102
R6111
SYNC DETECT
1k
IC B/D
V_DET
0
0.2
D6102
MA2J1110GLS0
Q6102
RT1N441C-TP-1
INVERTER
R6236
300
C6243
47
25V
C6235
47
25V
R6235
R6237
300
300
STR-DA4300ES
12 12 13 13 14 14
CN6201
9P
1 CVBS IN
3 GND
4 CY IN AX
5 GND
D_VIDEO
6 CB IN
BOARD
7 GND (5/10)
CN3602
8 CR IN
(Page 82)
9 GND
CN6202
10P
1 VOUT
R6240 0
3 GND
4 Y/G OUT
R6241 0
BC
5 GND
6 CB OUT
D_VIDEO
R6242 0
7 GND BOARD
(3/10)
8 CR OUT
CN3506
0
R6239
9 GND (Page 80)
10 +3.3V
13
12
14
79
A_VIDEO
BOARD
(4/4)
(Page 93)
11