Tv Part - Daewoo DVQ-13H1FC Service Manual

TROUBLESHOOTING GUIDE

2. TV PART

2-1) NO PICTURE
Check the waveform of I501 #46
a
Check
Reset
#34
VCC #37
#35
XCS01
Check
the X-TAL
b
Z502
Check
Vcc(9V)
Check
RGB Signal
Check
Voltage
33V 5V
U102
TUNER
Check
Signal
#65 #67
#10
SDATA SCLK
ICS01
TIMER/SYSCON #71
#72
#36 #38 #39
XS02
Check
Signal
#44
CC527
#18
I501
#19
#20
#21
IF OUT
AFT
#10
MCLK
#12
MDATA
#11
Check
Signal
Check
CHROMA Vcc(5V)
Check
HOR. Vcc(5V)
#43
#25
#13
Check
ABL current
18
NG : GO to the figure a
b
OK : GO to the figure
Check
IF Vcc(5V)
Z101
SAW FILT
#5 #6 #8
#3
#4
I501
#46
TRAP
#44
Check
Waveform
Check
200V LINE
D401
R403
T402
FBT
Check
Heater Vp-p
6.2Vrms
Check
Voltage
Z502
4.5M