Question about Westinghouse SK-32H540S 32 in. LCD TV
1 swollen Capacitors / Replace
2 blown Diodes on inverter board / on some # 508 or 908
3 bad transistors in inverter bad will appear overheated powdery coat
4 replace inverter if you cannot locate problem on it
there is a safety built into the high power back light supply and that is if too much current is drawn or light is shorted it will not burn up
or hazard high volt shock to user.
capacitors and diodes driven with power transistors
look for darkened spots on the board to identify hot transistors
puffy tops and leaky bottoms of capacitors
when you turn it on does the bottom or top of the screen show image a Milli second before the other it should be evenly the lag
is the one requiring more amperage
Posted on Aug 07, 2010
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Posted on Jan 02, 2017
Take a strong light and put it up against the screen. Do you see a faint image? if yes, then your backlight has failed. Could be a lamp, inverter or power supply issue. Not for DIY'ers.
Posted on Apr 23, 2010
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