Hitachi 51SWX20B Service Manual page 124

DP-2X Chassis Video Signal Path - NTSC,Component, OSD
SIGNAL PWB
PDG
UKDG
QK06
Dig R Out 20
QK07
Dig G Out 21
Dig B Out 22
Digital Conv.
Unit
DEFLECTION PWB
See DVI Input
IX02
Signal Diagram
Y/Pb/Pr
PET
Selector
DVI
3 57
DVI PR
INPUT
7 55 MAIN Pr-Out 2
DVI PB
From
DVI
5 53
DVI Y (G)
Pb-Out 2
INPUT
PWB
12 64
DVI Det
MAIN Y-Out 2
63 COMP 1 (Cr/Pr)
V1
61
COMP 1 (Cb/Pb)
59
COMP 1 (Y)
9 COMP 2 (Cr/Pr)
V2
7
COMP 2 (Cb/Pb)
5
COMP 2 (Y)
SUB Pr-Out 1
SUB Pb-Out 1
SUB Y-Out 1
TERMINAL PWB
POWER PWB
PPD1
2
4
QK08
5
OSD R
I001
OSD G
Micro-
processor
OSD B
2
NTSC MAIN Y In
IZ02
4
S-In MAIN Y In
MAIN
Video/Chroma
Y Pr/Pb Switch
QX22
40 28
Cr/Pr R In
QX23
MAIN
42 29
Cb/Pb B In
Main Cr/Pr Out
QX24
44 30
D-Sync 1/Y3/ G In
Main Cb/Pb Out
6
D-Sync 2 In
Main Y Out
IZ01
2
NTSC MAIN Y In
SUB
4
Sub MAIN Y In
Video/Chroma
Y Pr/Pb Switch
QX21
46 28
Cr/Pr R In
Sub CrPr Out
QX20
48
29
Cb/Pb B In
QX19 Sub Cb/Pb Out
50 30
D-Sync 1/Y3/ G In
Sub Y Out
6
D-Sync 2 In
SIGNAL PWB
Q422
PPS1
Q421
2
4
5
Q419
Q418
32
Q417
Q404
33
34
PST1
Q308
QZ08
22 4
Q307
QZ09
23 5
QZ10
Q306
7
24
MAIN
PST2
SUB
QZ03
22 26
QZ02
23 24
QZ01
24 23
RAINFOREST IC
35
Analog R In
I401
RGB
34
Analog G In
Processor
Q420
33
Analog B In
39
OSD R In
R Out
38
OSD G In
G Out
37
OSD B In
B Out
10
Pr 2 In
Q405
9
Pb 2 In
Q406
8
Y 2 In
Pr 1 In Pb 1 In Y 1 In
5 4 3
PFC1
5
U303
FC4
4
UNIT
3
PFC2
Q401
Pr Out
20
Q402
Pb Out
18
Q403
Y Out
16
19
18
17
SIGNAL PWB
43
To
CPT
42
PWBs
41