Sanyo LCD-20CA1Z, Service Manual

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-3-
Chassis Block Diagrams
(Video Signal Lines)
TU201
TUNER
ASSY
, PWB MAIN
IC301
SWITCHING IC
COMP
. VIDEO/Y
4 8
AV
2 INPUT
COMPONENT VIDEO
IN
COMPOSITE VIDEO
IN
AV
1
I
N
PUT
COMPOSITE VIDEO
IN
S-VIDEO IN VIDEO MONIT
O
R
OUT
COMP
. VIDEO
or
S-VIDEO
IC303
VIDEO SW
7
3
S-VIDEO
COMP .
VIDEO
1
TV COMP
. VIDEO
2
19
IIC B
U
S
4/5
22
VIDEO MONIT
OR OUT
Cb
, Cr
IC601
DIGIT
AL DECODER
WITH Y/C
SEP
ARA
T
O
N
92/94
Cb
, Cr IN
85
Y
18
90
20
C
Y IN
C IN
IIC B
U
S
13/14
IC701
I/P CONVER
TER
SCREEN CONTR
OLLER
IC702
SDRAM
LCD P
ANEL
(20V)
LCD P
ANEL
(15V)
(For 20V)
(For 15V)
IC801
TTL/L
VDS
CONVER
TER
R/G/B (0-7)
R/G/B (0-7)
IC201
CPU
IC204
DC/DC
CONVER
TER
154
153
OSD_HD
OSD_VD
5
3
OSD_HD
OSD_VD
26
27
6
4
OSD_CC
22 23 24 25 21 R G B
Y I
152 151 150 144 149 R G B
Y I
OSD OUT
OSD IN
IIC B
U
S
Y/C DIGIT
A
L
(0-7)
IIC B
U
S
IIC B
U
S
ASSY
, PWB,
KEY BO
ARD
KEY INPUT
17
ASSY
, PWB,
LED BO
ARD
RC INPUT
35