Panasonic TH-42PX20U-P Service Manual page 210

TO PF10
JK3714
VIDEO3
IN
L
R
HP
OUT
V
R
L
C
Y
15
5
10
14
JK3709
4
9
PC IN
13
3
VGA
8
12
(fH=31.5kHz)
2
7
11
1
6
PA4
7 6 5 4 11 10 1 8 9
74
PA10
1
NR21V
2
NR21V
7
STB5V IC2304
STB5V
AVR 9V
5 1
NR14V
IC2102
AVR 12V
1
S3707
CH.UP
S3706
CH.DN
S3705
VOL.UP
S3704
VOL.DN
S3703
TV/VTR
S3702
ASPECT
G
Front Input Board
PA8
2 19 18 6 3 4 17 8
IC7501
AVR 9V
SUB 9V
1 2
SUB 9V2
3 9V
IC7502
AVR 9V2
1 2
2 12V
IC7503
AVR 5V
1 2
IC7504
21V
AVR 4.2V
1 2
5
Q7509
IC7505
14V
AVR 2.5V
1 2
9 10 11 12 14 15 PA23 1 2 4
IC7581
TUNER 30V
Q7582
3 5
Q7581
4
Q7501
Q7502
Q7510
Q7543 Q7504
MAIN4.2V
Q7541
Q7542
5 6 7 8 PA24 4 7 3 1
TH-42PX20U-P
PA and G-BOARD BLOCK Diagram
TO
PA2
DG2
3
SUB 9V
5
SUB 9V
1
BT 30V
15
MAIN 9V
21
SUB 9V2
23
SUB 9V2
32
TV ON
7
SUB 5V
19
SUB 5V
11
MAIN 4.2V
13
MAIN 4.2V
25
MAIN 2.5V
27
MAIN 2.5V
36
AC ON/OFF
33
SOS
TO D12
PA12
TXD
1
TXD
RXD
3
RXD
STB5V
5
STB5V
12V
7
12V
PA21
12V
12V
7
STB5V
STB5V
5
RXD
RXD
3
TXD
TXD
1
5