Question about Sharp Aquos LC-37G4U 37 in. HD-Ready LCD Television
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
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
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
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
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
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
First two stepsin Guru's approach worked. Great! Thanks.
Posted on Aug 06, 2008
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
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
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
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
My sharp LC-32m400m-bk LCD flashing the red led
Posted on Mar 16, 2012
I have a LC-32DH65S with the same problems. my solution was:
Unplug the power
Press menu and vol-
plug in power
and voila it works again!
Posted on Feb 11, 2014
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
Chances are something was damaged in the power supply board and will need repair or replacement
Posted on Apr 24, 2018
Hold down vol plus input and apply power on with remote
Posted on Sep 03, 2015
I tried the volume - and channel + and it worked. Thank you veryyyyy much#
Posted on Jul 20, 2015
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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