Question about Sharp 27K-S100 TV
This Sharp TV literally eats vertical deflection ics. I investigated with an oscilloscope and found that pin 22 of the main ic, X2933ce, has no output drive waveform going into the vertical deflection chip. There is not even a dc voltage on this pin which appears to be open. Unfortunately, this ic is prohibitively expensive. I tried to cross reference it with another similar looking ic on another board, X2701ce, but neither ic is listed in the NTE catalog.Has anyone had a similar problem, and is there an inexpensive solution that I may have overlooked?
If the main IC is not putting out a vertical drive signal then the vertical output will not do anything and therefore will not be damaged. What exactly do you mean by the set "literally eats deflection IC's"? What is the number on the vertical output IC? I will bet that your pump-up cap or pump-up diode is defective.
Posted on Jul 05, 2007
Good to you, sis, i have a problem with my sharp tv. tv cuts off 10 seconds after switch on and destroying vertical output ic and i chang the ta8403k an the line is there still?
Posted on Sep 23, 2011
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