Daewoo DTQ 20U4SC Service Manual

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TROUBLESHOOTING GUIDE Appendix
5. NO COLOR
6. NO VERTICAL DEFLECTION
Check CVBS Waveform
R OUT
#37
#36
#58
#51
Check the crystal
Check the Voltage
Check Vout signal
Check Vertical signal
Vertical D.Y
Check the Voltage(27V)
I301 Vcc 27V
Check R/G/B signal
X501
X501
Vsup 5V
Vsup 5V
Vsup 3.3V
#61
I501
VDP3130Y
I501
VDP3130Y
I301
LA7848
#52
#38
#39
#16
#15
#51
#52
#31
#5 Vin
#2 Vout
#6 Vcc
Vertical OUTPUT
G OUT
B OUT

Daewoo DTQ 20U4SC Specifications

General

Brand	Daewoo
Model	DTQ 20U4SC
Category	CRT TV
Language	English