Hitachi 51SWX20B Service Manual page 121

DP-2X SERIES CHASSIS NTSC SYNC to MICROPROCESSOR SIGNAL PATH
Aux Input 5
Composite 5
5V
Avx 5 I n
S-5 I n
Front Control P WB
Signal PWB 2 of 2
U301
18
Main Tun er
U302
PinP TUNER ( Mono)
18
Always Pin P
Aux Input 3
Composite 3
V3
Part of Jack
S3 Det.
S-3 I n
Aux Input 4
Composite 4
V4
Part of Jack
S4 Det.
S-4 I n
Input 2
Component 2 Y
Input 1
Component 1 Y
480i Only
Lum/Audio Selector I C
PFT
V3V
IX01
2 22
V4
V3Y
7 24
Y4
Main Y
V3C
/Video
9 26 C4
11 28
S4
S5 Det. VOut1
Sub Y
/Video
PST1
Main
23 63
Video
NTSC
TV1V
TV2V
PinP
19 60
Video
15
21
S-Y1
17
S-C1
19
8
S-Y1
14
10
S-C1
12
Input 2
Composite
2 In
Composite 2
QX33 QX34
Composite 2
Terminal P WB
PST2
Q008
QX12
44 12
QX17 Q014
53 10
15
Y In
(480i)
PiP Video = Sub Video
For 480i
480i
Composite
Only for CCD
& V Chip
59
IX02
30 5
SIGNAL PWB 1 of 2
I0 05
Q010
Main 9
Hi
Q005
3
Z
4
Sub
5
Q006
Lo
480i 10
Hi
Q018
1
Y
15
Sub
2
Lo
480i 11
Hi
13 Q019
X1
14
Main
12
Lo
16
SW +9V
I0 01
73
Main CCD Sel
74
Sub CCD Sel
24
SD Sel
100
Main CCD In
97
Sub CCD In
M/S Sync
Q024
23
Det
62
HBlk
Q023
Sub CCD In for
64
VBlk
V. Chip Data
Q020 Q015
93
Main AFC
Q016 Q017 Main CCD Infor
CCD & V Chip
92 Sub AFC
Micro
Processor
Q004
Q012