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Rca tv G31750WKA

Hello. My tv has a white screen with horizontal lines. Is this something I can fix or hire a professional?

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2 Suggested Answers

techman
  • 3130 Answers

SOURCE: Several dozen thin horizontal white lines across the top of screen, all channels

These beasts are monsters to get into and service without the proper extenstion cables and a service manual. there are no user replaceable parts inside this set. if you know solid state serviceing, you can try and fix it. There is a bad capacitor or capacitors in the vertical sweep circuit and or the vertical output IC is bad also. If you can solder and unsolder go for it. But if you do not or know how the circuit Works Please find a trained tech to assist you with this repair. Good Luck. PS please do not forget to rate this.

Posted on Oct 14, 2006

megatronix
  • 57 Answers

SOURCE: white horizontal lines at top of picture

Yes, definitely worth fixing. The problem lies in the vertical deflection voltage-doubler circuit. The usual fault is a single capacitor of 100uF/35V that has failed. It is normally connected to a rectifier diode right at the vertical IC. Replacing the capacitor (no more than USD4.00 in price) usually gets it working perfectly again. If you are finicky around technical work, then a reputable local repair shop in your locality should do it quickly for you and charge only labour.

Posted on Jan 18, 2008

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