No Power - Daewoo DTQ-14P2FCM Service Manual

Appendix

1. NO POWER

FB01
125V 4A
Drain
C809
Source
/OCL
Vin
R805
Vcc
GND
F / B
Z / C
C891
F801(7W, 2.2)
L801
R801
Check
F801(125V/4A)
TSM-3541T8
#4
R807
+
#3
C804
#2
Check
Waveform
L811
#6
R891
R892
D810
#5
+
C807
C892
C893
D811
TROUBLESHOOTING GUIDE
Check
C810
C811
C818
+
T801
+133V
#12
L807
+45V
#13
L841
#14
+13.5V
#9
#10
+12V
R870
#11
R872
I806
LTV817
D871
I804
D805
LTV827
D806
I805
LTV817
8
D804 R821
+
+
R822
C819
R813
R814
+
L805
C820
C814
C813
D807
D824
C841
D841
+
C815
R817
C832
Q805
D813
+
R819
C812
D812
R879 R878
R869
C871
Q806
I803
R868
R826
R874
R824
R873 R875
Q871
R877
R827 Q873
R876
OCP
+133V
Check
Voltage
Check
voltage
+45V
+12V
(Sound)
Check
Voltage
+5V
+
(St-By)
C876
Check
Voltage
+5V
(H Vcc)
(Micom Power on/off)
PWR on : H
PWR off : L