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Tv power button lights up then go's off - Televison & Video

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Hey Craig,
I've seen this common problem in several models of flat panel TV's, especially 4 to 5 year old Walmart Black Friday specials. The capacitors in the power supply dry out and fail, causing the power supply to fail. When you try to turn the TV on, the power supply refuses to start and the unit shuts off. This problem that the local (in Phoenix) Fry's Electronics sells a power supply capacitor replacement kit for several models of flat panels. If you are compelled to check it out, the units are typically easy to disassemble, and the power supply PCB (printed circuit board) is normally well marked.The caps are blue and/or yellow cylinders, mounted on end. Defective ones, in this use dry out, overheat, and swell up, causing the top to noticeably bulge out. Without knowing more details I would suggest that this is a most likely failure for your TV. Thanks for using fixya. I hope it helps. Dan

Posted on Nov 28, 2014

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No picture on TV


Not sure if you saw Tom's Guide
at Sharp lcd tv power button flashing

(1) 4tinyhearts said:
I unplugged the TV and held the buttons down and it continued to flash. I continued to hold down the two buttons and replugged it in again and it worked. TV back up and working.

(2) lastditcheffort said:
Unplugged it. After looking for a new tv online I decided to try getting it to work. So, plugged it back in and held down the power button, a red light came on, held down the power button again and an orange light came on, held down power button again and green light came on and tv powered on. This was simply a case of trial and success!

(3) Nateinportland said :
unplug, hold power button, plug in. If that doesn't work, unplug all the HDMI cables, unplug the power, hold power button, plug back in.

Jun 04, 2016 | Sharp Aquos Televison & Video

2 Answers

I have a Sharp flat panel model LC-20SH4U. The units power LED light is red. No effect (sound or picture) when remote or on/off switch is activated. The LED light slightly blinks.


Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.

clip_image001.jpg
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.

Hope this may help;

Regards,
VOTIT

Aug 09, 2008 | Televison & Video

1 Answer

Need to program my ZN311 Remote to Sony Tv, but do not have the code. I need the code.


hello here is how you get your remote to work...make sure tv is on
step 1.hold down code search button till you see the red light
step2. let go of code search button and hit TV once light should blink
step3. press and release the power button while pointong a TV u ((may have to press the power button several times)) once the Tv powers off press the enter button once
step4. press tv button and hit power

May 16, 2009 | Zenith ZN311 Remote Control

1 Answer

Zenith remote will not work tv, need code


hello here is how you get your remote to work...make sure tv is on
step 1.hold down code search button till you see the red light
step2. let go of code search button and hit TV once light should blink
step3. press and release the power button while pointong a TV u ((may have to press the power button several times)) once the Tv powers off press the enter button once
step4. press tv button and hit power

May 16, 2009 | Zenith DBZN-311 Remote Control

1 Answer

Need the code for a LG brand tv on a radio shack 3 in one universal remote control....


hello here is how you get your remote to work...make sure tv is on
step 1.hold down code search button till you see the red light
step2. let go of code search button and hit TV once light should blink
step3. press and release the power button while pointong a TV u ((may have to press the power button several times)) once the Tv powers off press the enter button once
step4. press tv button and hit power

May 16, 2009 | Radio Shack (15-2147) Remote Control

1 Answer

I lost my sylvania remote and bought an RCA universal remote


hello here is how you get your remote to work...make sure tv is on
step 1.hold down code search button till you see the red light
step2. let go of code search button and hit TV once light should blink
step3. press and release the power button while pointong a TV u ((may have to press the power button several times)) once the Tv powers off press the enter button once
step4. press tv button and hit power

Mar 07, 2009 | Zenith DBZN-311 Remote Control

1 Answer

Timer light blinks on and off and tv wont turn on


Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.
If ever resetting is no effect then the problem is in the "DM board"
The constant blinking green light means that the TV is not booting up. This is a common problem on this set. Hope it may help you; Regards, VOTIT

Sep 25, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Timer light is flashing but tv wont turn on!


When the timer light stoped flashing the remote control would not turn on the TV. The next time the light quit flashing I held the power button in on the TV for about 5 seconds and it came on and has had no problems since then with the remote or the local TV power button.

Greg Allen

Aug 29, 2008 | Mitsubishi Televison & Video

1 Answer

Power button Flashes


For the first one, please list the model number and count the blinks. Also, can you please post each problem separately. It will get too confusing trying to address 3 sets with different but similar problems.
Thanks,
Dan

Mar 18, 2008 | Televison & Video

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