20 Most Recent Sharp LC-C4254U 42 in. LCD TV Questions & Answers

common for sharp to have bad main boards

It is a skilled work. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

It can be purchased from most of the electronics spare part selling shops. It is not a hard to get component. Gopakumar Gopalan Google

Hi,

You need to call your dealer or customer service for the replacement of lost screws.

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Menu on remote and make sure you have it on wide screen or 16 to 9

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When you say WD box, do you mean a Western Digital Hard Disk Drive? If so, get a Solid State Drive (SSD), and connect it via USB3. The HDD or the USB connection is not fast enough to keep up with the required speed of the video. If you mean something else, please add details.

Check the high voltage circuit on the board that has the 120 volts input. The high voltage should be close to 400 volts - nothing less than 390 volts. The capacitor is failing to hold the voltage and needs to be replaced.

un plug tv and try to force on by pressing vol_ and input button from tv then plug back in see if tv comes on .