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-58-
TROUBLESHOOTING GUIDE
Appendix
Drain
76
I801 MR2540
54321
Vin
Vcc
GND
F / B
Z / C
Source
/OCL
FB01
L801
R801
C803
C802
D801
125V 5A
++
+
+
L805
C820
C814
R814
R813
R822
C818
D804
R862
C819
OCP
+133V
+45V
+12V
(Sound)
+5V
(St-By)
Q871
R827
Q873
R877
(Micom Power on/off)
PWR on : H
PWR off : L
R873
D806
R802
4
5678
321
D871
I803
R868
I804
LTV817
I804
LTV827
I805
LTV817
D811
C891
D804
D802
C892
C807
R805
D810
R892
R891
L802
C809
Check
Waveform
#8
#7
+
#11
#10
+12V
C871
R872
R869
R879R870
R878
C812
R818
R817
Q805
C706
D812
+
D813
C832
C815
+
+
D808
C817
D807
L807
C813
+133V
#2
#3
#4
R807
C804
+
T801
TSM-5345B9
L806
+45V
+13.5V
#9
#14
#12
#13
R893
R874
R876
Check
F801(125V/5A)
Check
R801(10W,1)
Check
Voltage
Check
voltage
Check
Voltage
1.NO POWER