Question about Sharp Aquos LC37D44U 37 in. LCD HDTV

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Sharp lcd tv power problem

Just bought sharp lcd tv yesterday , model LC-37d44u , cable is plugged into the back and power is plugged in , basic system , pressed power on tv for initial start up all was well.......watched tv for a bit , turned power off from remote and came back 1/2hr later to turn on with remote and green power light came on but NO TV......couple repetative clicking sounds from the back of the tv i could hear......black screen and nothing , then the power and opc green lights started to flash and flash for mins....still nothing....unplugged and started over again and it worked.....but once i powered off from remote and turned back on 20min later....no tv again...
PLEASE HELP ME..????

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

VOTIT
  • 2071 Answers

SOURCE: POWER AND OPC LIGHT BLINKING GREEN

The condition of your TV called power supply overcurrent shutdown that"s why you hear a click. The TV is going into a protection mode to prevent further circuit damage. That's why it will not turn on or not powering up. I would concentrate on the power supply section board. Bad regulation of the incoming voltage could caused this issue although,there is a capacitor across the incoming line and nuetral.Maybe its leak or dry up and cause the problems,change it out with one of identical rating . Although now you are getting into dangerous area,especially if you have no electronic experience background. It could be also be a loose ,crack or cold solder joint,a blown fuse,fusible links or other component .It could be one of several boards.Unfortunately the level of sophistication on these TV make it virtually impossible to diagnose them further without taking them apart and probing around with a multimeter and other tools.This TV is handy enough to take to a repair shop find a good one.You will probably have to pay $75 to $100....

Hope this may help you..

Regards,
VOTIT

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Posted on Oct 10, 2008

dsacco86
  • 1077 Answers

SOURCE: Sharp LC-26D43U Power light flashes and unit won't turn on?

It's a power supply related problem. When it turns itself off, this it called protection mode. The TV automatically turns off to protect other parts form being damaged.
The most common problem is the Power Supply Unit or the Backlight Inverter Board.
You may have to take the TV to a repair shop to find out which one is bad. Paying a repair shop to replace the board for you maybe more than the TV is worth. If you let them diagnose it and you replace the bad circuit board yourself, it would be cheaper.

Here's a place I use to get parts for TVs:
http://www.shopjimmy.com/catalogsearch/result/index/?q=LC-26D43U&p=1
The problem is the repair shop may charge you double or three times of what the part costs at the web site link above. Then, plus labor. I just want to save you money. :)

Posted on Jun 03, 2009

satavlad
  • 405 Answers

SOURCE: 37in sharp lc-37d44u, green flashing power light,

There two possibilities, one that you have bad invertor unit, two you have one CCFL (backlight lamp) went dead.

Posted on Nov 30, 2009

  • 8457 Answers

SOURCE: 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.

Posted on Dec 28, 2009

  • 8457 Answers

SOURCE: My sharp LC-37d62u display problem

This problem very common in sharp tv.The POWER,OPC flashes.First turn on have power LED indicator light stable at all? Tries the power again couple times will have backlight come back on,than it will work.Not at all more than 5-6 times than ur main turner signal board is the problem,must replaced.

Posted on Jan 05, 2010

Testimonial: "Took a part back panels looking at the circuit board power capacitors, plugged in TV to power outlet, and powered up normally."

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I have a sharp aquos lc-37d44u and I have the blinking green power light problem I replaced the backlight inverter board still nothing and the only thing i.think it could be is the lamps but Don't no


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. Check all the CCFL lamps for darkened ends. 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.

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Hi,
Question heading shows it is Sharp LC-37G4U tv and if power indicator dose not lit if tv plugged in that means power supply board got defective and need to be replaced.
Required power supply board is available with ShopJimmy.com for $79
Click above link to view power supply board image and price info.
If you are handy with electronics stuff repair then can replace power supply board by yourself OR call local tv repair shop to do this job.
Hope these info will help you.
Let me know if you have additional question.
Thanks

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It may be in the safety shutdown due to shorts circuits in the power supply or in the backlight inverter board. You will have to open it up and check.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

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If this is only happening when connecting the DVD player through the VCR, then check to make sure the same cables connecting the DVD player to the the VCR are also connected to the TV from the VCR.
BTW- if this is just to record DVDs to a VCR, I'll tell you it's not worth it. If your DVD player has an HDMI port, your picture quality will be so much better than if you're watching a VCR copy of one. Your new HDTV will look worse than an old standard def TV. Worse; I'm not kidding.
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