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My TV repeatedly shuts off after being on for 30 minutes or so. then this morning it would not turn on at all no audio or picture the green lamp and red timer lights were flashing the tv had not been in use prior to this. I pulled the bulb ordered a new one then put the bulb back in and the picture and audio came on when i turned it on again help!.

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OK, I am assuming you mean that after turning it on, or turning it off and on again that you again had no picture or sound.

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for 5 mins, then try.

If you aren't tech savvy, read to the end of this document and watch all the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.
http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

If this has not helped, please post a reply to this solution, along with the specific make/model of TV you have, and we'll attempt to further assist you.

Posted on Mar 27, 2011

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My television is sony trinitron,when I turn it on, there is a sound, then it will turn off. is there a problem with IC? And how to check if IC is broken?

Posted on Mar 30, 2011

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Posted on Jan 02, 2017

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Tonight my Sony Wega KDF-42WE655 screen went black and the audio stopped, the standby light (green) blinked on and off for about 30 sec. then the screen came back on and the green light blinked 5 sec or so...


Hi,
Replace its lamp as existing lamp has been reached at end of its working hours life and need to replace to solve this issue. Please note lamp is not not broken or dead yet so you do not see lamp light on tv front.
Lamp replacement procedure is easy and written in user manual.
Please buy Sony original lamp for god picture in tv.
Thanks.

Dec 31, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

Tip

Pix shuts off, green light starts flashing, pix comes back and shuts off again


If you have an issue where your picture turns off and the green power light starts flashing, you are most likely looking at a weak or old lamp. Do not be confused with a pix loss and a RED light flashing, as this can be caused by many things. The normal sequence of events for this fix is this:
1) TV turns on normally, plays for 1 to 3 minutes (may be more or less time)
2) Picture goes out and green power light begins flashing. It may flash for up to 2 minutes
3) green light turns on solid (stops flashing) and picture returns.
4) Picture goes out again and process repeats.

You may have been told that "if the lamp light isn't on, it isn't a bad lamp".
FALSE!
A weak lamp will cause the process above to occur. Other signs of a weak lamp:
The reflector in the lamp is very cloudy
You may see a "growth" or "bubble" on the vertical glass tube which is the lamp
You haven't replaced the lamp in quite some time or it is the original lamp from when you purchased the TV.

In cases like these, try a new lamp. Stick with an original Sony lamp, as there are many stories (both personally witnessed by me and also documented on the web) about problems with after market replacement lamps. And remember, lamps DO NOT have a shelf life; you can store them in a good environment (not too hot or cold!) for an indefinite period with no ill effects.

on Nov 03, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Mitsubishi 52'' TV Model WD52525


U restart the tv,u hear alots of clicking?That mean the Ballast is dead or have problems,that why ur picture lamp not sustaning the picture.Replacing the Ballast might or will sustance the picture.

May 18, 2010 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Just replaced the lamp after 2 years. TV worked


Make sure that the lamp cage is seating well .. then make sure the door is closed properly. there is a door switch and if the door dont close right the switch may be telling the set the lamp is out.

Oct 23, 2009 | Mitsubishi WD-62531 Projection Television

2 Answers

Picture and sound shut off, blinking green standby


MY SONY PROJECTION TV WENT BLANK WITH NO SOUND GREEN LIGHT WAS ON WHATS WRONG

Oct 14, 2009 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Watching tv when the picture went black and now the green on light flashes for 30 times and turns off


A green flashing light for this model of TV indicates that the lamp cover is open on the TV.
  1. Unplug the power cable to the TV.
  2. Remove the 2 retaining screws on the lamp cover with a Phillips type screwdriver.
  3. Remove the lamp door completely from the TV.
  4. Remove the two retaining screws on the lamp case.
  5. Lift up the fixed wire handle of the lamp.
  6. Pull out the handle slowly and remove the lamp case.
  7. Insert the new lamp gently into the correct position. Make sure it is inserted correctly.
  8. Using a manual Phillips screwdriver (Do Not use an electric screwdiver), tighten the screws you removed in
    step 3.
  9. Replace the lamp cover and tighten the cover screws.
  10. Plug in the power cord and turn on the TV. After the initial warmup period (which may take up to several
    seconds for full picture brightness), the TV should operate normally.
If any of the following conditions exist, turn off the TV, unplug the power cord, and repeat steps 1–9 to ensure that the lamp unit and lamp unit
door are installed correctly:
  • The lamp indicator flashes green.
  • No picture
  • Dark picture
  • TV will not turn on
If, after repeating steps 1–10, the problem still exists, call Customer Service at 1-800-631-3811.
Source

Aug 31, 2009 | Toshiba 44NHM84 44" TV

4 Answers

Green flashes then tv turns off


or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

Aug 23, 2008 | Sony KP-51HW40 51" Rear Projection...

3 Answers

Tv turns off


Its the lamp that needs replacing. It will run for a couple of seconds and then it would dim or turn off.

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