Daewoo DTQ-14V1FS/20V1FS - Manual (Page 22)

21
TROUBLESHOOTING GUIDE
1. NO POWER
12V #10
#3
#5
#1
I801
D801
PCW1
F801
L801
R801
R416
RLY01
FROM
FBT 10V
C804
T801
B+
133V
45V
12V
D807
C814
D808
D813
C815
C812
R814
C820
C819
TO I101 #34
OCP
TUNER
33V
R820
DR.TRNS B+
45V
SOUND B+
12V
R817
R818
D812
5.6Vz
Q805
C706
ST-BY
5V
133V
Q801
FET
S
R809
R802
G
R803
D
L802
C805
R804
Check
F801(125V 4A) Check
D801(PBS208GU)
Check
R801(7W 2.2)
Check
Voltage
Check
Voltage
Check
Voltage
Check
Voltage
133V #14
FROM U-COM
#42 PW ON/0FF
#11
Check
Voltage
FROM MICOM #42
PW ON : H
PW OFF : L
Check
waveform
<DRAIN OF Q801>
ST-BY PW ON