Panasonic PT-40LC12 Service Manual page 141

VIDEO SIGNAL PATH II BLOCK DIAGRAM (1/2)
LCD MAIN C.B.A.
WF91
FROM
I2C SERIAL DATA
SYSTEM CONTROL
I2C SERIAL CLOCK
BLOCK DIAGRAM
WF90
IC2502 (A/D COVNERTER)
CONTRAST
WF62
CONTROL
WF63 BRIGHTNESS
CONTROL
WF64
R2502 C2505
MAIN Y P2501-1 48
R2501 C2504
FROM VIDEO I MAIN PB P2501-3
43 A/D
R2503 C2506
SGNAL PATH
MAIN PR P2501-5 54
R2550
BLOCK DIAGRAM
MAIN H-SYNC P2501-7
WF65
R2548
MAIN V-SYNC P2501-9 MAIN H-SYNC
30
31 MAIN V-SYNC
WF57 WF66 MAIN PI V-SYNC
MAIN PI H-SYNC
WF58
WF59 MAIN PI CLOCK
11,22,23,69,78,79
WF60 SW
VCC
+3.3V(1)
WF61
26,27,34,35,39,42,
VCC 45,46,51,52,59,62
IP CLOCK ON(H) <FROM IC2301(24)>
IP CLOCK INVERT(H) <FROM IC2301(22)>
MAIN SCALER CS(L) <FROM IC2301(60)>
SUB SCALER CS(L) <FROM IC2301(59)>
IC2501
+3.3V
SW+7V
2 3
REG.
WF67
WF68
WF69 FROM
SYSTEM CONTROL
WF70
BLOCK DIAGRAM
WF71
R2734
SUB R P2701-1
R2735
FROM VIDEO I SUB G P2701-3
R2736
SGNAL PATH
SUB B P2701-5
BLOCK DIAGRAM
SUB H-SYNC P2701-7
SUB V-SYNC P2701-9
IC2705
SW+7V
3
IC2704
(SYNC SEPARATION)
SW +5V 16 VCC
4
SYNC
6
SEPARATION
8
IC9002 (IP CONVERTER)
WF92
DE-INTERLACE
MEMORY CONTROL 57-130
PROCESSOR
16,26,73,74,89,117,
132,135,182,189,194 VCC SW +3.3V(1)
2,41,51,56,99,106,
146,160,168,199,205
VCC SW+1.8V
148 I2C
WF94
CONTROL
147
WF93
8
VIDEO INPUT VIDEO OUTPUT
7
CIRCUIT CIRCUIT
46
WF96
CLOCK RESET(L)
163-166,
174 175 169-172 136-143 11-14,17-20 24,25,27-32 36-39,42-45 145 200
WF97
PR DATA (8 BIT)
WF85 WF86 WF87 WF95
WF84
Y DATA (8 BIT)
480i
PB DATA (8 BIT)
WF88
WF82
PR,PB DATA (8 BIT)
70-77
WF89
WF83 480p, 720p, 1080i
Y DATA (8 BIT)
2-9
IC9004 (PLL)
WF79
64
WF80 VCC SW +3.3V(1)
2
66
WF81 IC9006 (LOGIC)
67 4
PLL
7 1
5 4 SW +3.3V
2
SW
1 6 VCC 5
+3.3V(1) SW +2.5V
IP RESET(L) <FROM IC2301(25)> WF99
WF100
WF98
OSD BLNKING
OSD DATA 0
FROM
OSD DATA 1
SYSTEM CONTROL
BLOCK DIAGRAM
OSD DATA 2
OSD DATA 3
SERIAL DATA 0
FROM
SYSTEM CONTROL SERIAL CLOCK
BLOCK DIAGRAM
SERIAL DATA 1
SW +3.3V
IC2706 (A/D COVNERTER)
SW +2.5V
I2C SERIAL DATA
57 I2C
I2C SERIAL CLOCK 56 CONTROL
WF107 WF110
SUB R DATA (8 BIT)
70-77
C2727
54
C2726
48
SUB G DATA (8 BIT)
C2725
43
A/D 2-9
30 SUB V-SYNC
SUB REF. H-SYNC
31
SUB B DATA (8 BIT)
12-19
R2753
WF72 CONTRAST
WF108 WF111
CONTROL
WF73
SUB PI H-SYNC
BRIGHTNESS 66
CONTROL SUB PI CLOCK 67
WF74
(76MHz)
WF106
WF109
WF75
26,27,34,35,39,42,
45,46,51,52,59,62
WF76
11,22,23,69,78,79
+3.3V SW
VCC VCC
2
REG. +3.3V(1)
IC9507
(INVERTER)
VCC 14 SW +3.3V
TP2702
WF77
14 3 4
TP2703
Q2709
WF78
13
IC9003 (16M MEMORY)
3,9,15,29,35,41,
43,49,55,75,81
VCC SW +3.3V(1)
16M
MEMORY
MAIN R DATA (8 BIT)
IC9202 (MAIN SCALER)
SUB R DATA (8 BIT)
175 IP H-SYNC
176 IP V-SYNC
178 IP CLOCK MAIN G DATA (8 BIT)
SUB G DATA (8 BIT)
WF103
MAIN B DATA (8 BIT)
147-154 110-112,115-119
SUB B DATA (8 BIT)
157-164 122-124,127-131
Y/PB/PR --> RGB
CONVERTER
PICTURE SCALE
166-173 UP/DOWN 134-135,138-143
CONTROL
IP CONVERTE
FOR 1080i
COLOR CONTROL
181-188
TINT CONTROL
IC9203 (64M MEMORY)
SHARPNESS
CONTROL
189-196
FOR 480p, 720p, 1,3,9,15,29,35,
SW
41,49,55,75,81
1080i VCC
FROM
+3.3V
SYSTEM CONTROL
64M BLOCK DIAGRAM
3-77
MEMORY
1,10,24,36,46,54,68,76,
WF101
78,93,100,105,114,126,
VCC 137,145,180,201
PO CLOCK
(76MHz) 92
17,42,61,83,86,108,
VCC 156,174,207 PO CLOCK
81
WF102
(76MHz)
PO H-SYNC 101
197 MAIN PI H-SYNC PO V-SYNC 102
199 MAIN PI CLOCK
198 MAIN V-SYNC RESET(L) 88
OSD BLANKING 94
OSD DATA 0
95
MAIN SCALER CS(L)
204 OSD DATA 1 96
205 SERIAL DATA 0 OSD DATA 2 97
SERIAL CLOCK OSD DATA 3
203 98
SERIAL DATA 1
208
IC9508 (SUB SCALER)
IC9511 (BUFFER)
SERIAL DATA 0
205 OSD BLANKING 94
203 SERIAL CLOCK OSD DATA 0 95
11
SERIAL DATA 1 OSD DATA 1
208 96
SUB SCALER CS(L)
204 OSD DATA 2 97
6
OSD DATA 3 98
3
1,10,24,36,46,54,68,76, RESET(L) 88
78,93,100,105,114,126, WF114
VCC
137,145,180,201 SUB DENB 106
PO H-SYNC 101
17,42,61,83,86,108,
PO V-SYNC 102
VCC 156,174,207
WF113
PO CLOCK(76MHz) 92
PO CLOCK(76MHz) 81
SUB R DATA (8 BIT)
147-154 110-112,115-119
PICTURE SCALE
UP/DOWN
SUB G DATA (8 BIT)
CONTROL
157-164 122-124,127-131
PC R/G/B
CONTROL
SUB B DATA (8 BIT)
166-173 134-135,138-143
IC9509 (64M MEMORY)
WF115
SUB PI H-SYNC
175 1,3,9,15,29,35,
41,49,55,75,81
178 SUB PI CLOCK
VCC SW +3.3V
(76MHz)
64M
3-77
176 SUB PI V-SYNC
MEMORY
177 PI FLD
WF112
WF117 IC9204 (SYNC SELECTOR)
WF105
WF118 WF120
20-27
R DATA (8 BIT)
133-140
SELECTOR
51-54,56-59
11-17,19
G DATA (8 BIT)
124-126,128-132
SELECTOR
41,43-46,48-50
2-7,9,10
B DATA (8 BIT)
113,115-121
SELECTOR
28,30,31,33-35,39-40
NON-UNIFORMITY COLOR
CORRECTION ON(L)/
THROUGH(H)
<FROM IC2301(67)>
SERIAL DATA 0
SERIAL CLOCK
FROM
SYSTEM CONTROL
BLOCK DIAGRAM
COLOR
SERIAL DATA 0 SERIAL DATA 0 CORRECTION CS(L)
105
SERIAL CLOCK 107 SERIAL CLOCK
SYNC SELECTOR CS(L) 106 SYNC SELECTOR CS(L)
RESET(L) <FROM IC2301(50)>
1,8,37,42,
55,73,84,
WF104
109,127,141 VCC SW +3.3V
38 PO CLOCK(76MHz)
60
SAMPLING & HOLD
WF116 78-83,85-88,
PULSE (1 - 14) 91-94
100 SUB H-SYNC
103 SUB V-SYNC
PICTURE COMPOSITION
(P IN P/SPLIT SCREEN)
WF121
WF122
WF119
SW +3.3V
IC9503 (TIMING GENERATOR)
SW +2.5V
28 PO H-SYNC RESET(L) 181
29 PO V-SYNC
X9502
76 MHz
13 23 PO CLOCK(76MHz) D/A CLOCK 25
OSC
4
1
VCC
CLAMP 196
14
XFRP
197
SW +3.3V(1)
FRP 198
NRG 199
ENABLE1
201
ENABLE2 202
ENABLE3 203
ENABLE4 205
SUB R
133 -140
13,20,27,32,41,53,
DATA (8 BIT)
62,78,104,130,147, VCC SW +3.3V(1)
157,174,183,195,208
SUB G
123-129,132
DATA (8 BIT)
DY 5
SUB B
115-122
DATA (8 BIT)
DX 4
DIR-Y 3
CLY 9
38 PI FLD
37 SUB PI V-SYNC
DIR-X
206
101 SUB PI H-SYNC
103 SUB PI CLOCK(76MHz)
CLX 6
SUB H-SYNC
153
154 SUB V-SYNC
145 SUB REF. H-SYNC
IC9801 (COLOR CORRECTION)
WF124
158-162, 19,20,24,25,
164-168 27-30,32,33
NON-UNIFORMITY
50,51,53-55,
145-154 COLOR COMPENSATION
58-62
GAMMA CORRECTION
134-141, 82,83,85-87,
143,144 90-92,94,95
D/A CLOCK
6 63
(76MHz)
WF123
119 SERIAL DATA 0
120 SERIAL CLOCK
121 COLOR CORRECTION CS(L)
122 RESET(L)
7 PO H-SYNC
8 PO V-SYNC
13 PO CLOCK(76MHz)
1,12,26,35,44,56,66,75,80,88,
VCC 89,98,109,131,132,155,176
15,45,74,103,133,163
VCC
VIDEO SIGNAL PATH II BLOCK DIAGRAM
PT-40LC12/PT-45LC12