I have a SHARP lc-26sh12u that turns on but has no sound and only displays vertical colored lines. Any idea what the problem is? Thanks!

How to fix lcd lines on Sharp tv screen, hdmi video board ...

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May 24, 2014 - Uploaded by Tampatec
How to fix LCD lines on Sharp TV screen, hdmi video board easy ... Make Money From Your Broken Cracked LCD LED PLASMATV ... TV Repair Help for Vertical & Horizontal Lines on Your TV Screen ... Sharp Aquos LC-32 37 46 52DH65E 66E 77E - NoPic/Sound with ... Get video URL at current time.

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We have frequent outages causing the TV to turn on from standby mode when power returns. (These ..... Sharp LC-70LE650U 70-Inch Aquos TV TURNS ON WITH PERFECT PICTURE AND ..... It has thin horizontal lines on the top quarter of thescreen. ..... hey there, bought a 52lg60-ua had no image/picture but had sound.

LCD Display Symptoms and causes. - YouTube

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https://www.youtube.com/watch?v=DedJvyNm_s4

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/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Bad TCON board or Damaged screen. You can try and replace the TCON "Timing Control Board" and see if that helps. Replacing the Screen itself is very expensive and normally about half of what the unit cost new. Here is a video to give you a clue on how to do so, it is pretty easy when you know which board to replace.

LCD TV Repair Tutorial Con Board Common Symptoms Solutions How to Replace...

Sounds like panel fault. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Screen-shots do defective LCD panel are given. You can see and compare it to that of your TV's.

I had a similar problem where it displays "PLEASE WAIT" for several seconds alternating with blocky colors for several seconds and continuing anywhere from 5 to 30 minutes.

I inferred from a couple of sources that the TV is booting up when it says "please wait" by reading data from flash memory. I was able to fix my problem by resetting the data in memory to factory default values using this procedure from the service manual (wait until the TV is working before trying this):

Turn on the POWER.
Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
After the finishing of the initializing of shipping, the unit will turn off automatically

It can be either the LCD panel driver board, or the worst case is bad LCD panel.

Yes, don't buy SHARP, problem solved! SHARP is the worst brand of LCD TV. I had to bring my brand new SHARP TV in for repair within 8 months of buying it brand new, and of course it was no longer under the 90 day labor warranty. Also, every person I know who has a SHARP TV has issues with volume and eventually end up with a black vertical line along the side of the screen within 1 to 2 years. I highly reccomend SONY, PANASONIC, even SAMSUNG, LG or VIZIO. Heck, I'd go with Toshiba or Phillips before I'd ever buy anything SHARP again I was so annoyed with their customer service.

My Sharp TV LC-26sh12U when at 50 is not good. After a hour or two I can hardly hear the program. What is happening?

Sorry, you have a defective LCD panel. If your TV is still under warranty, contact Sharp to get the TV exchanged. Otherwise, LCD panels cost more than the TV is worth.

Either bad connection with the LVDS cable, defective LCD controller, or even a defective LCD panel. Can you post pictures?