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Sharp LC-26sh12u - Powers on but no picture or sound

I have a Sharp LC-26sh12u that powers on but shows no picture and has no sound. No features are working. Any ideas as to where to start is appreciated. Thanks!

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6 Suggested Answers

SOURCE: 'SHARP LC 26SH12U' & Philps DVP 5160

sounds like you are using standard audio/video cables (yellow, blk., wht) in the component conections on either the tv, vcr or dvd player. If you intend on using component connection you will need to use different cables.

Posted on May 27, 2008

dsacco86
  • 1077 Answers

SOURCE: My Sharp TV will only hear sound. No picture or images even from the tv menu setup option. Model# LC-19SB25U. About 1.5 yrs old. Converter box ok.

In most cases, you can reset the TV by leaving it unplugged for 30mins.
If this doesn't work, I believe the circuit board that supplies power to the screen maybe bad. They call this board a backlight inverter board. It would most likely cost more to repair than replace the TV .

Posted on May 27, 2009

  • 197 Answers

SOURCE: picture but no sound

main pcb needs to be cleaned were audio ic is. there is black gunk 

Posted on Jun 07, 2009

  • 5603 Answers

SOURCE: The main fuse is blown. Replaced, it blew right

The inout circuitry of the power supply probably has a bad component(s).

Use a series 100 Watt light bulb during testing to avoid blowing fuses. The light will limit the current without blowing the fuse.

Posted on Nov 14, 2009

Testimonial: "This is helpful"

  • 1 Answer

SOURCE: sharp tv model lc-26sh12u very low vulumn

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.

Posted on Nov 28, 2009

  • 8457 Answers

SOURCE: I have a Sharp 26

Tries the hardware store like Home Depost,ACE Hardware,get machine screws.Short 4" and the long one Should 6".That my estamate.Want Exact measurement try Ebay.com for the package sale for LCD tv bases.

Posted on Jan 07, 2010

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1 Answer

It shows bars of different colors and then powers off


The television needs a main board and or a panel. This will probably be too expensive to repair. You can see if Sharp will make and exception for you and let you send digital pictures of the problem in.

Dec 09, 2010 | Sharp Aquos LC-32GD4U 32 in. LCD HDTV

1 Answer

My LC-26sh12u takes 10 minutes to


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

Nov 21, 2009 | Sharp Flat Panel Televisions

1 Answer

My Sharp TV will only hear sound. No picture or images even from the tv menu setup option. Model# LC-19SB25U. About 1.5 yrs old. Converter box ok.


In most cases, you can reset the TV by leaving it unplugged for 30mins.
If this doesn't work, I believe the circuit board that supplies power to the screen maybe bad. They call this board a backlight inverter board. It would most likely cost more to repair than replace the TV .

May 27, 2009 | iLO 3200 32 in. LCD Television

1 Answer

'SHARP LC 26SH12U' & Philps DVP 5160


sounds like you are using standard audio/video cables (yellow, blk., wht) in the component conections on either the tv, vcr or dvd player. If you intend on using component connection you will need to use different cables.

May 04, 2008 | Flat Panel Televisions

1 Answer

52 SHARP AQUOS


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

Nov 13, 2007 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

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