FUNAI LCD-A2006 - Page 22

7-4
L4620BLLCD
LCD Block Diagram
LCD MAIN CBA UNIT
VIDEO SIGNAL
IC301 (LCD DRIVE / LCD SIGNAL PROCESS)
TO IF/VIDEO BLOCK DIAGRAM CN103A
CN103B
182 181 180 179 175 174 173
QDRVHC QDRVVB QDRVHB QDRVHA/QDE
QDRVVA QDRVHE
QCLKL
LCD MODULE
VREF(4) 28 VREF(0) 32 VREF(1) 31 VREF(2) 30 VREF(3) 29 VREF(7) 24 VREF(5) 26 VREF(6) 25 VREF(8) 23 VREF(9) 22
104 105
103
VCOM 35 VCOM
36
PANEL+10.8V
CN311
169
168 167 166 165 161 160 159 158
155 154 153 152 151 150 146 145
LCD MODULE
TP322 TP323 TP318 TP319 TP320 TP321
143 142 141 140 139 135 134 133
132 131 130 129 128 127 123 122
121 120 119 116 115 114 113 106
TP316 TP317 TP312 TP313 TP314 TP315
CN312
OR(3)
31
OR(4)
30
OR(5)
29
OR(0)
34
OR(1)
33
OR(2)
32
OG(3)
24
OG(4)
23
OG(5)
22
OG(0)
27
OG(1)
26
OG(2)
25
OB(3)
17
OB(4)
16
OB(5)
15
OB(0)
20
OB(1)
19
OB(2)
18
ER(3)
3
ER(4)
2
ER(5)
1
ER(0)
6
ER(1)
5
ER(2)
4
EG(3)
47
EG(4)
46
EG(5)
45
EG(0)
50
EG(1)
49
EG(2)
48
EB(3)
40
EB(4)
39
EB(5)
38
EB(0)
43
EB(1)
42
EB(2)
41
CVBS1 8 CVBS2 9
S-VIDEO-C 5 S-VIDEO-Y
6
VIDEO-B 3
VIDEO-R 1
VIDEO-G
2
VCOM 3 VCOM
4
CN312
84
85
X301 54MHz
XIN XOUT
CLKV 14
VCOM CONTROL
Q971 IC981
91
95 96
98
STV1 13
LP 44
CN311
POL 43
HMS1-E 7
CLKH 10
STH1 42
HMS1-O 13
WF11
WF10
WF12
WF9
VIDEO SIGNAL PROCESS
NTSC/PAL SEPARATION
BURST LOCKED
OUTPUT CONTROL CHROMA DECODER
SECAM PDM
RCO
PANEL SIGNAL PROCESS
TV SIGNAL PROCESS
INPUT CONTROL
CVBS Y C
B
G
R
A/D
A/D A/D A/D
33 44
13 42 40
21
31
QDRVHC
97
WF14WF13
B G R B G R
R905
R907 R901
R904
R902
R997
VCOM
TO SYSTEM CONTROL BLOCK DIAGRAM