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I have a Sharp Aquos LC-70LE66ou I am not getting ANY lights on the display. I have power to the power board, the fuse is good. I have replaced the power board with no luck. Still not working.

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  • Sharp Expert
  • 279 Answers

Red Light is showing or not. If Stand by light is ok than changed Main Board.

Posted on Jan 07, 2019

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6 Suggested Answers

6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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SOURCE: LC-37D62U Sharp Aquos HDTV Settings

lost sound on Sharp Aquos 37LCD62U

Posted on Jan 25, 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

  • 1779 Answers

SOURCE: power supply bad on Sharp Aquos LC - bad board - schematic to ID?

Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.

Let me know how you do Kathy ?

Posted on May 17, 2009

  • 1 Answer

SOURCE: the power light and OPC light flash but TV won't

try making sure tht tha scart or HDMI cable is securly fitted (depending on which one u using) and this suld solve loss of picture or sound

Posted on Jun 09, 2009

  • 8457 Answers

SOURCE: sharp aquos no sound through hdmi

Reset all audio factory setting.Tries unplug,replug it well work,if ur backlight video board it still good.

Posted on Dec 17, 2009

Testimonial: "worked like a charm thank you so much, i was about to throw in the towel and get a new tv, now i don't have to thanks again"

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My sharp aquos LC-60E79U has no picture. Perhaps I have a backlight problem?


. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Oct 13, 2016 | SHARP ELECTRONICS DE AQUOS LC-60E79U 60"...

1 Answer

Sharp aquos LC-37HV4U won't turn on just have a red light. I have unplugged the display and the AVC system. Turned back on then get a blinking red light. Turn on at the display and to goes to solid red...


when this occurs this is got only meaning: the Ignintion panel is faulty its the board/chip that gives the signal to the TV to start

to replace that part u must a serious soldering skill and and take to much risk cuz u might make more damage on that TV

plz do rate this post as good as u can

Oct 10, 2008 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

1 Answer

Sharp LC-30HV4U with only steady red lights on Display and AV unit; when pressing vol/chan/power on Display, it will go into "service mode" - what should I check next? and how do I exit service...


Good day!!!

If you have lit red lights on your TV every attempt to power ON..
That problem is usually cause of bad power supply board or main board..

If you need a step by step procedure on how to troubleshoot your TV you can go to this link and get service..
LCD HDTV ASSUMED TO FIX

Thank you for using fixya...

Nov 04, 2011 | Sharp AQUOS LC-40C32U 32 in. LCD TV

1 Answer

Hi my sharp aquos lc-30hv4u keep's blowing the main ac fuse 3.15amp 250v. i looked at the main power board it looks good. is there something i can look for? thanks for any help.


On the power board look at the electrolytic capacitors . The top of them should be flat. If they are domed on top or have leaked out the bottom then they need to be replaced.

Mar 13, 2011 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

1 Answer

I own a Sharp Aquos LC-37D42U and I connected it to a 220 Volts outlet and of course something burned. I am wondering if there's an internal fuse that might have blown up so I can replace it. If so, is it...


too bad,
but yes they have an internal FUSE in the power supply board, check it and replace with the exact one, also check if theres another FUSE to replace in the next boards.
Fosg2000

Mar 11, 2010 | Sharp Aquos LC-37D42U Television

2 Answers

No picture no sound opc light and power light


This is very common in sharp tvs.U turn it on.U get power on light stable right?U hear a click,one or twice,sometime tv is good right?Sometime POWER light and OPC light flashes?Push the power button on/off couples times will work, picture will come on.If keep trying off/on couples time after POWER and OPC flashes,don't ever stop and never get backlight and picture.Ur Video backlight board is dead must replaced.

Dec 28, 2009 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

Sharp Aquos LC-42D62U Completely Without Power


If you have no power at all , the then problem concern the power cord or the power supply board.

You need to test the power cable first, and eventually test and replace the power board, the job can be done by any local technician.

Here the replacement power board.

Here all parts for your set: LC-42D62U.

Mar 06, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

No power to tv after unplugging and replugging


either the fuse is burnt out inside or the the problem is the power supply board. You can remove the back cover to see if the fuse is good or not.

Jan 17, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

Red Blinking Power Light Sharp Aquos


What do three blinks of the power light mean on my Sharp Aquos LC-C5262U? I cannot power up my display.

Jul 13, 2008 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

Sharp aquos lc -32da5u


Probably needs a new main unit or power supply board replaced. Most times is main unit

Jun 17, 2008 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

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