Panasonic TH-42PX20U-P Service Manual page 192

D925
22
4 5
400V
Vcc
D
Startup
st Peak
R924
C921
ent
t
t
e
L921
GND
3
D922
R940
IC921
FEED BACK
1
2
911
!
F902
K5D312BK0012
T3.15AL 250V
LF915
NEUTRAL
3 4
5 C903
2
1
C910
C911
T
LD
65
HOT COLD
C972
T920
18 P2
D971
2
S3
3
S4
C970
14 P1 5
S1A
D970
6
S1B
C971
7
S2A
11 V2 8
S2B
10 V1
C914
R972
HOT COLD
4 1
R971
IC970
2
3
ERROR
VOLTAGE
DET
RL901
D990
Q990
POWER ON/OFF CTL.
HOT COLD
LIVE
14V(UN Reg)
C973
21V(UN Reg)
R970
C975
R976
C974
R974
R973
3
1
REF_2.5V
R975
2
STAND-BY 5V
C990
R990
R992
TO PA10
PF10
1
2
5
7
9
TO P9
PF2
NEUTRAL
1
LIVE
4
TH-42PX20U-P
PF-BOARD BLOCK Diagram