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3.4V
0.2V
APFC
Cotrol
IC
18
22V
10µs
APFC Control Circuit
21V
R12
D95
C34
R13
D36
C73
C27
D81
5V
C26
R15
C28
16 15 14 13 12 11 10 9
IC24
2
2
3
3
1
C84
1
Q69
Q68
FA5502
1 2 3 4 5 6 7 8
C21
Voltage Detection
C16 R17
R19
C18
R18
R37
R42
R91
C22
R90
C98
KX-TDA0103XJ/KX-TDA0103X L-TYPE POWER SUPPLY UNIT (PSU-L) 6/9
CN100
PVCC
1
DET-I
2
HV-
3
4
DET-V
ACMON1
5
ACMON2
6
18
CN101
PFDRV
1
R31
PFSEN
2
PFOV
3
R32
C71
ACOFF
R83
4
D64
REF
R82
5
C85 R65
HV-
1
R164
3
Q167
2
R165
R93
D96 R97
Q163
2
R190
3
1
D184
R168
R94
3
C93
C195
C94
R95
R169
D192
HV-
R191 D193
+
C194
AC Monitor
Q49/Q50
gate drive
2
Q170
1
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Table of Contents
Troubleshooting
