Question about Proscan 42LA45H 42 in. LCD TV
Please leave your set ON for several hours and see if the circuit stabilises.It is possible that some capacitor has weaked with electrolytics drying up resulting in loss of value.
If there is no result then open set and try to look for components visibily faulty like high value filter capacitors. replace if suspected.
Use a good soldering iron to touch up soldering the main board, specially the mP sections, the display drives.
Plug/replug in all connectors after checking in the main board/powersupply/display section.
Use a multimeter to check the failed voltage and trace logically the cut off line voltage.
I hope you work on this tip.
Posted on Aug 25, 2010
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Posted on Jan 02, 2017
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