No On-Screen Display; Remote Control Does Not Operate - Daewoo DTP-14V1 Service Manual

6. NO ON-SCREEN DISPLAY

Check
the signal (50/60Hz)
V.SYNC IN
H.SYNC IN
Check
the signal (15.625KHz)
Check
the crystal

7. REMOTE CONTROL DOES NOT OPERATE

Check
the crystal
SDA
#39
SCL
I701
#38
MICOM
FAST BLANK
#12
OSD R
#11
OSD G
#10
OSD B
#9
#50 #51
X701
4MHz
I701
MICOM
#57
#50 #51
X701
4MHz
Check
clock/data signal
#50
#49
#48
#47
Check
OSD R/G/B/FB signal
OUT
Remote Control
PREAMP
Check
the waveform
I501
I704
ST-BY
5V