Daewoo DTQ 20U4SC Service Manual

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TROUBLESHOOTING GUIDE Appendix
7. NO ON-SCREEN DISPLAY
8. REMOTE CONTROL DOES NOT OPERATE
V. SYNC
Check the signal(60Hz) Check data/clock signal
I501
VDP3130Y
IL701
REMOCON
PREAMP
I701
MICOM
I701
MICOM
H. SYNC
ST-BY 5V
ST-BY 5V
ST-BY 5V
#20
#22
#23
#24
#25
#41
#42
#43
#44
#12#11#10
#12
#34
#11#10
X701
Check
the crystal
X701
Check
the crystal
Check OSD R/G/B/BLANK signal
Check the waveform
If OSD doesn’t operate,
I701 replace new product
Check
the signal(15.73Hz)
SDA
SCL
OSD R
OSD G
OSD B
BLANK
OUT
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Daewoo DTQ 20U4SC Specifications

General

Brand	Daewoo
Model	DTQ 20U4SC
Category	CRT TV
Language	English