TROUBLESHOOTING GUIDE

Appendix

5. NO COLOR

Check CVBS Waveform

R OUT

G OUT

B OUT

#61

#51

 

#52

#58

I501

VDP3130Y

 

#36

#37

 

#38

#16

 

#39

#15

 

Check the crystal

X501

Vsup 5V

Vsup 5V

Vsup 3.3V

Check R/G/B signal

Check the Voltage

6. NO VERTICAL DEFLECTION

#51

#52

I501

VDP3130Y

#31 Vertical OUTPUT

Check Vertical signal

X501

Vertical D.Y

Check the Voltage(27V) I301 Vcc 27V

#6 Vcc

#5 Vin I301

LA7848

#2 Vout

Check Vout signal

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Daewoo DTQ-29U1SC/SSP, DTQ-29U5SC/SSP service manual I501 VDP3130Y