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Line filter overheat

 
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sivadws2
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PostPosted: Sun Dec 10, 2006 5:09 pm    Post subject: Line filter overheat Reply with quote

Model : Beko 14" 12.7 Chassis
Problem : Strong smell.

The set plays with no problem (good picture and sound), no apparent problem but a strong smell comes out of the set. Opened the tv and i can see line filter (L701) overheated and a little smoke. Changed the line filter and the problem persists. B+ has 79-80V when playing (instead of 107 that the manual says) Stand by is 1.1V (when on standby).

Thanks in advance!!
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Frank
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PostPosted: Mon Dec 11, 2006 12:02 am    Post subject: Reply with quote

Low Volts on the smoothy big cap this usually means the big cap is bad you can cross it with a good oneand see if volts ge right.it also can be rectifiers, surge resistor, or choke,on/off switch,or mains filter parts,or tranformer.
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PostPosted: Tue Dec 12, 2006 11:05 pm    Post subject: Reply with quote

Replaced the SMPS FET (k2750) and the big "fat" cap and it seem to be OK now. Thanks!!
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