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