Emerson EWL20S5 - Page 22

7-4
LCD Block Diagram
L2601BLLCD
CN1206
TO IF/VIDEO BLOCK DIAGRAM
OR(0)24
OR(1)23
MAIN CBA
VIDEO SIGNAL
CVBS S-VIDEO-C
IC1202 (LCD DRIVE / SIGNAL PROCESS)
70 52 75
S-VIDEO-Y
TO IF/VIDEO BLOCK DIAGRAM
TO SYSTEM CONTROL BLOCK DIAGRAM
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 OFFEV5 STV16 CLKV7
ODDINV3 VCOM18 VCOM19 EVENINV1
STH126 POL27 LP28
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 PROCESS
LCD RGB SIGNAL PROCESS
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
CLKH2
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