Question about RCA F27450 27" TV
Tv comes on normally, everything is normal,3-5 minutes after, edges of vertical lines are no longer smooth, become jagged or serrated. Tv shuts down, no picture, sound nor raster. Then 3-5 seconds comes back on by itself, problem keeps repeating itself.During shut down all DC voltages are present except 9 volt for the Chroma Chip. Also fly back transformer is extremely warm.
You may have a loose solder joint causing this problem. If you can take it apart, you mihgt try spraying circuit cooler in various parts of the circuit but NOT in the high voltage or horizontal circuits.YOU MAY CAUSE AN ARC OR A COMPONENT TO SHORT SINCE THE SET HAS TO BE IN OPERATION WHEN YOU SPRAY. If you hit the bad connection the picture will come back on. When the picture zaps to the middle of the screen, is there just a bright line? If so, then you have a loose connection or a temperature problem in the vertical circuit. Stargazer
Posted on Mar 10, 2007
SOURCE: rca 32v524t chassis-atc010a
This sounds like something best handled by an experienced tech since the fix involves extreemly high voltages nearby,
If you have a very good knowledge of the inner workings of tv's then ask for more information.
Posted on Feb 18, 2008
The curved picture indicates failing parts in the pin amp section and probably some faulty parts in the scan amplifier sections. The set is being turned off by the uPC because there is a fault indicated, and it is going in to protect mode.
The set will have to be properly serviced.
Posted on May 25, 2008
THE POWER SUPPLY OF YOUR TV WAS THE PROBLEM,YOU COLD SOLDER THE MAINBOARD OF YOUR TV,AND THE CRT SOCKET CONNECT TO THE TUBE IS ALSO COLDSOLDER,.
Posted on Jun 19, 2008
Same problem with my 28 inch 16:9 CRT Sanyo. I usually fix it by cutting the power to the outlet and then it works fine. Had it into the repair shop - and of course it never acts up there...
Posted on Jan 27, 2009
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