Question about RCA 20V500T 20" TV

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RCA 20V500T HALF PICTURE AND SHUTSDOWN

I HAVE A RCA TV THAT SHOWS A HALF THE SCREEN AND IT TURNS OFF IN ABOUT 10 SEC. I REPLACED THE DIODE AND THE PROBLEM PERSIST ANY IDEA YOU HAVE

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Try , Horizontal or Vertical output.

Posted on Aug 27, 2008

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Why does it turn from blue to black after 10 sec.?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced.

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