Question about Sharp LC-15AV7U 15 in. LCD Television

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My sharp lc-15av7u lcd tv won't stay on. i push power and the screen flashes for a second the red power light goes on and then the red light goes off and the screen is black. is there anything that can be fixed?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Sharp LCD LC-46D64U

Try resetting the TV. Here's how to do it - Unplug the TV's power cable. Keep the Channel Down and Volume Up buttons on the TV pressed and plug the power cable back into the outlet. You will hear a click when you plug it back in if the reset is successful. Hopefully this should restore your video and audio.

Posted on Feb 06, 2008

  • 71 Answers

SOURCE: Sharp LCD TV LC-37GP1U flashing green power light

Unplug the unit for 1 minute, replug and try again. If it doesn't work the power supply is faulted and it needs professional service.

Posted on Sep 22, 2008

ginko
  • 19396 Answers

SOURCE: LC-37AF3X Sharp Aquos KCD TV

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Posted on May 05, 2009

rulds2008
  • 3866 Answers

SOURCE: Two red vertical lines down 32" Sharp Aquos LC-32P50E LCD TV

There are solutions for stuck "and not dead pixels" Here are a couple idea's to try and please do not rate me bad if don't work!! That would not be nice as i do not get compensated showing your solutions I get them by your "good ratings" Hence do not use "Thanks for Trying" rather helpful or fixya will do now here are the websites:
http://www.wikihow.com/Fix-a-Stuck-Pixel-on-an-LCD-Monitor

http://www.jscreenfix.com/basic.php

If you TV can hook up to a computer witch it can through servral means then you can use this information. But However do not rate me Thanks for trying if the darn thing just dont unstick the pixels... Thank You for using Fixya.com
"were we can save you hundreds of dollars on repairs" It has been my pleasure assisting you today. Rulds2008- Expert Top 10 Fixya.com

Posted on May 15, 2009

dsacco86
  • 1077 Answers

SOURCE: sharp lc-22sv6u won,t power on. no green light.

Sound like the TV is in protection mode. This happens when a part goes bad inside. the TV turns OFF to protect the other parts from being damaged.
Most commonly it's a power supply related issue. A bad capacitor or transformer on the power supply board is to blame.
For a do-it-yourself fixer with electronic experience, a Service Manual is the best for trouble shooting the problem down to the bad part. Normally, you can find it over the internet for less than $20.

Posted on Jul 31, 2009

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