Pf-Board (37 Inch); Pf-Board (42 Inch) - Panasonic TH-37PW7BX Service Manual

15.3. PF-Board Block Diagram
PF
Line Filter/F.STB Board
PF1
AC INLET LF901,LF902
F900
LIVE
1
LINE
FILTER
F901
NEUTRAL
4
AC LINE CODE
LF903
LINE
FILTER
IC910
STB REG
4
Vcc
DRIVE REG
+
REG LATCH
-
R
Q
S
OVP
TSD
Current
Mirror
+
-
OLP OSC
RESET TFC
Current
7
Mirror
BEC
FB/OLP
6
TH-37/42PW7 series
TH-37/42PWD7 series
PF-Board Block Diagram
RL920
F902
F.STB ON/OFF
RELAY
F.STB ON/OFF
Q930
HOT COLD
D910
T920
6 7
5 8
4 9
10
2 11
1 12
D
1
DRV
IC920
3
S/GND
REG
5 3
IC930
OCP/BD
OVER CURRENT
OCP
DETECT
+ ERROR DET
-
2
+
BTC
-
BD
Feed Back
PF9
TO P9
LIVE
4
NEUTRAL
1
PF10 TO J10
1 STB+5V
2 F.STB ON/OFF
5 F.STB+14V
6 F.STB+14V
D931
1
67
TH-37PW7BX
TH-37/42PW7 series
TH-37/42PWD7 series
PF-Board Block Diagram