Schematic Diagram - Io Board (2/2) - Sony HCD-HDX265 Service Manual

6-28. SCHEMATIC DIAGRAM – IO Board (2/2) –
1 2
A
72
IO
BOARD
B
(1/2)
(Page 56)
A+9V
AGND
D
C
VGND
DMPORT
BOARD
VIDEO
CN201
RXD
(Page 55)
TXD
DET A/D
(CHASSIS)
D
(CHASSIS)
VIDEO
J301
MONITOR
OUT
E
S VIDEO
(DVD ONLY)
1 2
3 4
F
(CHASSIS)
Y
J302
G
COMPONENT
P /C
B B
VIDEO OUT
(DVD ONLY)
P /C
R R
H
HCD-HDX265/HDX266/HDX267W/HDX465/HDX466/HDX665
See page 67 for Waveforms. See page 69 for IC Block Diagrams.
3 4
IO BOARD
(2/2)
B1
B3
B2
CN301
9P
1
L 2
3
R 4
R370
5
0
6
CLINKRX
7 71
CLINKTX
8
CLINKDET
9
C300
C334
1000p
R339
1000
75 6.3V
C301
1000p
R331
75
85
R329
R348
75
10k
C330
0.1
84
C302
C328 82 83
1000p 1000
R323
6.3V
75
R326
C331
81
75
1000
6.3V
R327
C332
80
75
100
16V
R328
C333
75
100
16V
79
R301
0
5 6 7
IC301
IC B/D
72
VIDEO SELECTOR
R371
75
R350
IC301
C343 0
MM1508XNRE
10
R372
50V
75
0 1.8
SW IN1
2.2
OUT GND
5.2 1.5
VCC IN2
C344
C337
10
0.1
50V
C338 100 16V
L300 10uH
L301
10uH
5.2 5.2
Vcc2 Vcc1
C347
0 S-DC OUT 2.5
470 10V
Cin
2.6 C OUT 3.3
MUTE1
0 S1 1.7
CVBSin
C348
0.1
S2 5.2
YC MIX
2.1 CVBS OUT 1.6
Yin
C351
100
GND2
16V
GND1
Y OUT
2.1 2
BIAS
C352
2.1 CY OUT 0.1
I/P
GND2 1.6
CYin
Cb OUT
2.6
CLP
GND2 2.5
Cb in
2.6 Cr OUT 3.3
MUTE2
GND2 2.5
Cr in
IC302
MM1758AFBE
IC302
IC B/D
VIDEO AMP,75 DRIVER
57 57
HCD-HDX265/HDX266/HDX267W/HDX465/HDX466/HDX665
8 9 10
73
C355
0.1
R375
0
C358
74
10
50V
C357
10
75
50V
76
C361
1
77
C359
1
R378
0
C360
1
78
R360
1k
11
A7
A2
A6 71
A5
IO
BOARD
(1/2)
(Page 56)
A4
A3
CN304
11P
1 CVBS
2 VGND
3 C
4 VGND J
5 Y
6 VGND MAIN
BOARD
7 CY/G
(13/13)
CN4302
8 VGND
(Page 47)
9 Cb/B
10 WIDE
11 Cr/R