Question about Toshiba 27A33 27" TV
I get a bright horizontal band plus what looks like a more-or-less properly proportioned, 2" high section of the picture directly below the band. It looks like I'm seeing a narrow window of the entire picture. Color and sound are fine as is the small section of the picture that is visable. The window I see is a tad short in width, but otherwise OK. I have already replaced the vertical IC (Sanyo LA78041) and the 2SD2499 transistor on the same heat sink, which had no effect on the problem. My next step is to check all the related vertical caps around the circuit. Any other suggestions?
Usually the 47 to a 100 mfd electrolytic capacitor although rarely the 1000 mfd 50 volt generally in and around the vertical output chip also just checking these capacitors may not reveal the defect so many times they may test good when they are bad the best way use substitution with jumper leads connect test shut off set go to next suspect turn set on .continue this you may find culpert.
Posted on May 02, 2007
You could do three of these change flyback change yoke change cap that couple the horizontal transistor.good luck
Posted on Apr 28, 2007
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