Daewoo DVQ-13H1FC Service Manual page 34

3-8) NO EXTERNAL VIDEO / AUDIO
Check
the voltage
Check
SCL/SDA signal
#16 #17
SW Vcc #39
A Vcc #75
Check
the voltage
(5V)
CVS
IN
JP01
EXT INPUT
RESET #34
Vcc(5V) #37
Vcc(5V) #98
Vcc(5V) #99
#65 #67
SDATA
SCLK
ICY01
CVS OUT
#27
VCR Y/C
LA71550M
AUDIO OUT
#81
#36 #78
Check
the waveform
AUDIO IN
ICS01
TIMER/
SYSCON
#71
#42
#2
Check
the waveform
33
TROUBLESHOOTING GUIDE
Check
the crystal
#39
XS02
16MHz
#38
Check
the crystal
#35
XCS01
32KHz
#36
#72
Check
MCL/MDA signal
MDATA
MCLK
#12 #11
IF Vcc
I501
CHROMA
DCT814B
Check
the voltage
(5V)