No On-Screen Display; Remote Control Does Not Operate - Daewoo DTQ-20D5FSN Service Manual

7. NO ON-SCREEN DISPLAY

Check
the signal (60Hz)
Check
the signal (15,734Hz)

8. REMOTE CONTROL DOES NOT OPERATE

32.768KHz
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V.SYNC IN
#20
I701
H.SYNC IN
MICOM
#21
#22
#23
#24
#25
#10 #11 #12
XC701
32.768KHz
ST-BY
5V
Check
the crystal
#34
I701
MICOM
#10 #11 #12
XC701
ST-BY
5V
Check
the crystal
TROUBLESHOOTING GUIDE
SDA
SCL
Check
clock/data signal
OSD R
#14
OSD G
#15
OSD B
#16
BLANK
#17
Check
OSD R/G/B/BLANK signal
If OSD does not operate,
then change the I701
IL701
OUT
Remote Control
PREAMP
GND
ST-BY
5V
Check
the waveform
16
APPENDIX
I101