Question about Sharp Aquos LC-37G4U 37 in. HD-Ready LCD Television

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Lcd sharp tv flashing green light

Power went out in our city, then when we went to turn tv back on, it will not turn on, just keeps flashing the green power light

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  • 5 more comments 
  • bfj2008 Jan 09, 2008

    I'm having the same problem the "opg" light is flashing also.

  • OCRegulator Jul 01, 2008

    Thank you CET. Your posting on 02-05-2008 was just the solution my wife and I needed. We followed the simple pattern of holding the buttons as described, and SHAZZZAM!!! Our TV worked again. Only afterward did we recall a power outage that was the probable culprit. Your simple tip probably saved us at least $200 in ridiculous service fees. Thanks again!

  • jkychu Aug 18, 2008

    Was watching a dvd on my Sharp Aquos LC-32D43U and it went black for a second and then the green light started flashing (the power light, I think) but only the one light, not two like other people have experienced. I didn't see any red or blue lights - just green. I've had it for a year and a half so the warrant has expired (figures). I tried two suggestions: 1) holding the power button, unplugging the set for a count of 10 sec. and then plugging it back in for another count of 10 sec. and releasing the power button; and 2) holding both the volume + and channel - while unplugging and plugging back in and both to no avail. Any one got any other suggestions? First time I"ve had any problems with them tv - pity b/c it was working so well until now...

  • Anonymous Jan 06, 2009

    Power light flashes blue on and off again. Help

  • bdspvl
    bdspvl Sep 19, 2012

    Thanks guys, It worked for me. Also found out if you turn the brightness down it stops shutting down. If the brightness is full the tv shuts down. has to do with the brightness circuitry.

  • Anonymous Mar 31, 2014

    front light keeps flashing

  • Myko Dec 01, 2016

    Yes your tip worked for me I have a sharp aqueous 55 inch and I had the green flashing lights and I pulled the plug out and held the voulum button up and the channel button down and then plugged it in at the same time and it worked but you have to press them simultaneously and let someone else plug it in and see what happens for you but it definitely worked for us...thanks for the tip again I contacted sharp and they didn't know what to do I would had paid $200 to fix it up to them goggle is very resourceful.....

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Try unplugging the unit and while unit is unplugged hold the volume up button and channel down buttons down and while depressing both buttons plug the unit in. Let go of the buttons and the unit should come on in the service mode. There will be a small k on the screen. With the sharp remote press the channel up button once. This should bring up a menu that will show a lamp error line. If the lamp error is = to 5 the unit is in lamp error shut down. User channel down to highlight that line and curser right arrow to highlight the lamp error #. Hit the enter button to clear the lamp errors. Now unplug the unit and let it sit for a minute and plug back in. I hope this corrects the problem. If the unit does not come on by doing this or if it does and you do not find lamp errors the power supply pcb may have been damaged by the surge.

Posted on Feb 05, 2008

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  • Warcila Nov 30, 2010

    thanks, I am a service member station in Germany.
    I called the 1800 number for Sharp but all they
    Said was you need to get it serviced. I did as you
    Said and held the volume an channel button and bang my 37" Sharp cristal
    LCD is working. Thanks so much you saved me a lot.

  • RDRCM Dec 01, 2010

    We had a power outage, our Sharp Aquos would not turn back on. We had the dreaded green flashing power light. We held the volume up and channel down buttons in while we plugged the TV back in. The TV reset with volume. About 10 seconds later the picture was gone but we still had volume. We turned the unit off using the Sharp remote, turned it back on and Walaaaa.....We are back in business. Thanks for your feedback......it helped~!

  • S223542 Aug 04, 2011

    THANK YOU!!!!! WORKED LIKE A CHARM!!!!!

  • Shim Oct 23, 2011

    I have sharp lcd42dh77e tv. When power is on it only shows green flashing light. Tried reseting by holding the power buttion for 10 sec. green flashing goes off, sounds comes for a while, channel number can be seen on the top and again back to the green flashing light! what is problem and solution? I had this problem twice before and solved by reseting but now its not working.
    Tried to enter in the adjustment process mode by following the steps stated in the service manual (Vol- and Input button) but failed,tried the steps stated in your solution and again failed, is there any other way?

  • Giuseppe Nov 27, 2011

    I get a 1b lamp_error 00h 00m.
    How can I solve it?
    Thanks a lot

  • lifes_a_beac
    lifes_a_beac Feb 24, 2012

    Thank you. Just tried this on my 37" Sharp and to my disbelief it worked! Has saved me from an expensive call out charge.

  • melissa_ycss
    melissa_ycss Aug 28, 2012

    Is there a way to do this without a remote?? I picked one up on the side of the road that is doing this. We held down the channel and volume button and when we let go the screen came on for a few seconds then went black again. We don't have the remote to it. We plugged our phone up to the imput and it emits sound just fine.

  • melissa_ycss
    melissa_ycss Aug 28, 2012

    Is there a way to do this without a remote?? We picked one up on the curb and it doesn't have a remote. We pushed the channel and volume button as you said but no K came up. The screen came on and showed the imput and all but then turned back to black. The light isn't flashing anymore though.

  • De Davis Jun 28, 2013

    so far it work holding the volume up and channel down

  • Becky Glass Aug 23, 2013

    I'm having the same issue as melissa above; I pushed the channel and volume button as you said but no K came up. The screen came on and showed the imput and all, but then turned back to black. I clicked the channel up button on the remote, but still black. The light isn't flashing anymore though.

  • Becky Glass Aug 23, 2013

    I was able to get sound now using the volume up and channel down buttons, but I only get a brief glimpse of the channel, then screen goes to black. Is there other button combos for different problems?

  • Rachel Sep 27, 2013

    Hi Becky, I just fixed this issue using the following method: push the volume down button and the power button at the same time. Wait for the light on the front of the tv to turn red. Then turn the tv on. It should come on, and quickly push menu and go to settings and hit reset. Once the reset is over, the tv should be good to go.

  • Violet Jane
    Violet Jane Dec 28, 2013

    the power light is gren on my tv , but it wont turn on & if it does itll stay on for a second :( ';

  • skylar corey
    skylar corey Dec 31, 2014

    I had this same issue. all I did was unplug it. hold down volume up button and channel down button 9n the TV ( not the remote ) plug TV back in while pushing volume up and channel down. release buttons. TV will come on and green light will not blink anymore. press menu go to setup then go to reset. highlight reset then press enter. then highlight yes then press enter. TV then should reset and turn off by itself. once TV comes back on it should be good to go.

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My sharp aquos will not turn on and it is flashing a green light at the base of the tv. I tried guru's suggestion and it didnt work. any other suggestions?

Posted on Jul 07, 2009

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I had the same problem: green light flashing when i opened the TV. CET's trick didn't worked, well half of it.

I unplugged the TV. I hold down Volume Down and Channel Up on the TV (not the remote). Kept them down and plugged the TV. After 10 sec of waiting, it worked so I let go the buttons.

Dont know why, but it worked.

Posted on Aug 03, 2010

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Great advice! I had a flashing red light on my Sharp Aquos LCD 37inch (6 years old) which meant I couldn't turn the tv on but after following these instructions it's back on - Thanks a mil !

Posted on May 25, 2010

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We have a Power Up problem with our Sharp Aquos 52SE94U and have had this problem since we bought in on 6/14/08. Sometimes after shutting if off, it won't power back on when we use the remote, so we read to unplug and plug it back in and it will work and it does. But for the money we shouldn't have to do that with a brand new TV. We have the Aquos Advantage program and they've sent a tech out 2 times now. They replaced the main p-c board, still had the problem so they came back and replaced the sensor board. It worked for 2 days then we went right back to the same problem, won't power on using the remote. We are back to unplug and plug in routine. HELP!!!

Posted on Aug 06, 2008

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First two stepsin Guru's approach worked. Great! Thanks.

Posted on Aug 06, 2008

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Well, this is a very comon fault.
First check the inverters forcing the TV set in service mode : unplug the unit from the input box,press VOLUME DOWN and INPUT keys and while pressing them switch the TV on using the power button (not the stand-by key). Maybe you see error 5. This indicates an inverter failure but if the screen is visible equally then the fault is hopefully elsewhere.Reset to zero (refer to the service manual) the error,disconnect the TV set from the AC plug and remove the rear cover.Then remove the screw holding the middle main board and clean the screw holes and the screws with some good contact cleaner.Refit the main board and power on the TV again. 99% works.

Posted on Nov 12, 2011

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I had the flashing blue light on an LC-37D90U. I held the buttons as suggested and plugged the unit in. It reset and my problem went away. There is no mention of a flashing blue light in the manual. Thank you for posting the info. Terrible troubleshooting section in the Sharp manual. They should be ashamed of themselves.

Posted on Apr 12, 2008

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No solution, just saying thanks! My mother's sharp lcd tv went out with a green flashing light. Followed the unplug, vol + / channel - , plug back in, and my mother couldn't believe it! From Long Island, many thanks!

Posted on Apr 26, 2012

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  • slideordie_2
    slideordie_2 Aug 24, 2012

    when i followed this procedure the power light stays on steady now but i still have no image

  • Melonie Holcomb Mar 02, 2013

    me the tv flashes on for a second on channel 12 with static but then goes back off

  • kshaffer3064 Jul 12, 2013

    I had this same problem and the unplug, Vol + Channel -, plug back in worked like a charm. I'm going to add this to my Sharp manual. THANKS>

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I used this solution to fix a blue flashing power light on my Sharp Aquos LC-52SE94U and it worked great. Thanks for your help as there was no solution in the manual.

Posted on Jul 08, 2008

  • S223542 Aug 04, 2011

    WORKED LIKE A CHARM!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Ill put in my two cents. ok i had the same problem with my mom's tv. did the reset thing and it kept happening after a few seconds. i decided to move input off hdmi 4 and then it stayed working. so i switch ports. i think it might cause the error on that port cause the port might be bad now. now i got it to stay on everything else but if i goto port 4 it errors it out." class="_mp3rocket_overlay_style" style="left: ; top: ; width: ; height: ">

Posted on Feb 13, 2013

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My sharp LC-32m400m-bk LCD flashing the red led

Posted on Mar 16, 2012

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I have a LC-32DH65S with the same problems. my solution was:
Unplug the power
Press menu and vol-
plug in power
release buttons
and voila it works again!

Posted on Feb 11, 2014

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Great fix. Was waiting for the tech to call and decided to google the problem (flashing blue power indicator light) of no power. Tried the fix and voila!!. No tech for me.

Posted on Dec 15, 2008

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I have a LC-32DH77E, with the same problems. my solution was:
Unplug the power
Press menu and vol-
plug in power
release buttons
and voila it works again!

Posted on Oct 20, 2014

  • Francesco Colotta
    Francesco Colotta Oct 08, 2015

    Thanks Antonio very much !, this worked for Me, Unplug the power, Press menu and vol-down, plug in power release buttons!! ;-)

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I have a flashing green power light and although I was able to begin the solution guru offered, I was unable to complete it because I do not have the controller for this tv. What are my options now?

Posted on May 28, 2010

  • Peter Rasmussen
    Peter Rasmussen Aug 11, 2014

    you dont need the remote. you can use the buttons on the side of the TV

  • Francesco Colotta
    Francesco Colotta Mar 12, 2015

    Thanks Antonio very much !, this worked for Me, Unplug the power Press menu and vol- plug in power release buttons!!

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Chances are something was damaged in the power supply board and will need repair or replacement

Posted on Apr 24, 2018

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Hold down vol plus input and apply power on with remote

Posted on Sep 03, 2015

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I tried the volume - and channel + and it worked. Thank you veryyyyy much#

Posted on Jul 20, 2015

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Thanks Antonio very much !, this worked for Me, Unplug the power Press menu and vol- plug in power release buttons!! ;-)

Posted on Mar 12, 2015

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