Hitachi 43FWX20B, Training

Page: 54 / 154

POWER PWB
DP-26 Chassis Video Signal Path - NTSC, Component, OSD
V2
COMP 2 (Cr/Pr) COMP 2 (Cb/Pb) COMP 2 (Y)
IX02
Y/Pb/Pr
Selector
MAIN Pr-Out 2
MAIN
Pb-Out 2
MAIN Y-Out 2
DVI PR DVI PB
DVI Y (G)
5 7 9
53 55 57
IZ01 SUB
Video/Chroma
Y Pr/Pb Switch
QZ01
QZ02
QZ03
IZ02
MAIN
Video/Chroma
Y Pr/Pb Switch
Main Y Out
QZ10 QZ09 QZ08
U303
FC4
UNIT
3 4 5
17 18 19
Q306
Q307 Q308
18 16 20
Q406
Q405
Q403
Q402
Q401
34 35 33
9
10
8
4
5
3
I401
RGB
Processor
Pr 1 In
Y 1 In
Pb 1 In
Pr 2 In Y 2 In
Pb 2 In
Q404
Q417
Q418
Q419
I001
Micro-
processor
OSD R OSD B OSD G
OSD R In OSD B In OSD G In
Analog R In Analog B In Analog G In
42 43 41
R Out
B Out
G Out
QK08
QK07
QK06
Q420
Q421
Q422
Digital Conv.
Unit
Dig R Out
Dig B Out Dig G Out
DEFLECTION PWB
To
CPT
PWBs
PDG
21 22 20
PPD1
4 5 2
PPS1
4 5 2
23 22 24
23 22
24
PST1
5
7
4
32 34 33
PFC1
PFC2
38 39 37
PST2
24
23
26
PET
SUB Pr-Out 1
SUB Pb-Out 1
SUB Y-Out 1
7
5
3
DVI
INPUT
From
DVI
INPUT
PWB
DVI Det
64
12
28 30 29
D-Sync 1/Y3/ G In Cb/Pb B In Cr/Pr R In
QX22
QX23
QX24
6
D-Sync 2 In
28 30 29
QX21 QX20 QX19
6
D-Sync 2 In D-Sync 1/Y3/ G In Cb/Pb B In Cr/Pr R In
MAIN
SUB
Y Out
Pb Out
Pr Out
UKDG
Main Cr/Pr Out
Main Cb/Pb Out
Sub CrPr Out
Sub Cb/Pb Out
Sub Y Out
RAINFOREST IC
2
NTSC MAIN Y In
4
S-In MAIN Y In
2
NTSC MAIN Y In
4
Sub MAIN Y In
TERMINAL PWB
SIGNAL PWB
See DVI Input
Signal
Diagram
44 42 40 50 48 46
V1
COMP 1 (Cr/Pr) COMP 1 (Cb/Pb) COMP 1 (Y)
59 61 63
DM Y DM PB DM PR
19 17 15
PST1
13
15 17
From
ATSC
Digital
Tuner
UD2002
Signal PWB
PAGE 03-10
FLEX CONVERTER