Panasonic PT-40LC12 Service Manual page 140

VIDEO SIGNAL PATH I BLOCK DIAGRAM (2/2)
480p, 720p, 1080i
IC5008,
WF22 WF23
Q5044-5057
SHARPNESS
CONTROL CIRCUIT
FOR 480i
WF24
IC5001 (MAIN CCV/V-CHIP DETECTOR)
UNSW +5V 7 VCC
Q5017-5011,
Q5005 Q5013-5015
Y OSD-R
15 19 B
H-SYNC
Q5004
18
RGB -->Y/PB/PR
V-SYNC OSD-G
17 20 B
CONVERTER
DISPLAY
CONTROL
OSD-B
21
OSD-BLANKING
22
VCC 7 UNSW +5V
RESET(L)
13
SERIAL DATA1
43 5
SERIAL DATA0 X5001
45
SERIAL CLOCK 32kHz
44 6
B Q5038
SW +5V
480i
Q5056
Q5052 B
Q5047 B
B
IC5005 (OSD MIX)
Q5023
OSD-Y
B 13
OSD MIX 14
12
Q5024
OSD-PB
B 1
OSD MIX 15
2
Q5025
OSD-PR
B 3
OSD MIX
4
5
VCC SW +5V
16
Q5017
9 10 11
Q5018 B
Q5019 B
B
IC5004
(CLAMP)
3 1 10 8
VCC
14
5
13
12
Q5041, 5042
6 SYNC
SLICE
4 2 11 9
Q5040
B
RGB JACK C.B.A.
JK3901
WF54 WF53 WF52
R
P3901-1
G
P3901-3
B
P3901-5
PC-IN
H-SYNC
P3901-7
V-SYNC
P3901-9
WF55 WF56
MAIN VIDEO SIGNAL SUB VIDEO SIGNAL VIDEO SIGNAL(MAIN/SUB)
IC5007 (SW)
WF25
SW +5V 16 VCC
Q5026,5027,
TP5003
Q5032,5033
L
12
H 14 B P5003-1 MAIN Y
13
P5003-3 MAIN PB
WF26
Q5028,5029,
P5003-5 MAIN PR
TP5004
Q5034,5035
L P5003-7 MAIN H-SYNC
2
H B P5003-9 MAIN V-SYNC
15
1
WF27
Q5030,5031,
WF29
TP5005
Q5036,5037
L
5
H 4 B WF28
3
9 10 11
IC5009 (BUFFER)
3 11
1 3
SW +5V VCC
14
WF36 WF35
IC3801 (SW)
WF30 WF31
TP3803
Q3810-3813
L
7
H 21 B P3801-1 SUB R
1
P3801-3 SUB G
TP3802
C3804
Q3806-3809
L P3801-5 SUB B
9
H 19 B P3801-7 SUB H-SYNC
3
P3801-9 SUB V-SYNC
TP3801 WF32
C3805
Q3802-3805
L
11
H 15 B WF34
5
C3806
L WF33
23
H 22
24
R3809
L
13
H 14
12
R3807
VCC 20 SW +5V
WF37 WF38 WF39
16
PC(H)/SUB VIDEO(L)
<FROM IC6001(29)>
VIDEO SIGNAL PATH I BLOCK DIAGRAM
PT-40LC12/PT-45LC12
TO VIDEO II SIGNAL PATH
BLOCK DIAGRAM
TO VIDEO II SIGNAL PATH
BLOCK DIAGRAM