Emerson EWL20S5, Service Manual

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7-4
LCD Block Diagram
L2601BLLCD
CN1206
TO IF/VIDEO BLOCK DIA
GRAM
OR(0)
24
OR(1)
23
MAIN CB
A
VIDEO SIGNAL
CVBS S-VIDEO-C
IC1202
(LCD DRIVE / SIGNAL PR
OCESS)
70 52 75
S-VIDEO-Y
TO IF/VIDEO BLOCK DIA
GRAM
TO SYSTEM CONTR
O
L
BLOCK DIA
G
RAM
VIDEO-Y VIDEO-Pb/Cb
LCD MODULE
OR(2)
22
OR(3)
21
OR(4)
20
OR(5)
19
OG(0)
17
OG(1)
16
OG(2)
15
OG(3)
14
OG(4)
13
OG(5)
12
OB(0)
10
OB(1)
9 OB(2)
8 OB(3)
7 OB(4)
6 OB(5)
5 ER(0)
28
ER(1)
27
ER(2)
26
ER(3)
25
ER(4)
24
ER(5)
23
EG(0)
21
EG(1)
20
EG(2)
19
EG(3)
18
EG(4)
17
EG(5)
16
EB(0)
14
EB(1)
13
EB(2)
12
EB(3)
11
EB(4)
10
EB(5)
9 OFFEV
5 STV1
6 CLKV
7 ODDINV
3 VCOM
18
VCOM
19
EVENINV
1 STH1
26
POL
27
LP
28
CN1206 CN1207
151
62 57 77
150 146 145 144 143 142 141 140 136 135 134 133 132 131 130 129 128 118 117 116 115 114 113 112 111 110 109 108 105 104 103
95 94 93 92 86 90 91
127 124 153 154 155
A/D
VIDEO SIGNAL PR
OCESS
LCD RGB SIGNAL PR
OCESS
R B G Y Pb/Cb Pr/Cr
B(EVEN) G(EVEN) R(EVEN)
B(ODD) G(ODD) R(ODD)
CN1205
A/D A/D A/D A/D A/D
VIDEO-Pr/Cr
R B G
WF3
ODDINV
EVENINV
STH1
POL
LP
OFFEV
STV1
CLKV
CLKH
2
126
CLKH
WF1
WF5
CVBS C Y
R1303 R1302 R1301 R1344 R1323
WF4
Q1024
DRIVE
IC1207
(OP AMP)
5
7
V
-COM
WF7 WF9 WF8
WF10 WF11 WF12
WF2