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Re: TV switches on/off continuously after the TV has been...
Look for a bad solder joint or component in the power supply. Also check around the high voltage section. Make sure you do all of this with the set unpluged. It also could be a component heating up and failing, You could get some freeze spray and wait for the set to mess up and spray a section of the board at a time to locate the bad component. Hopr this is helpful.
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If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop. https://www.youtube.com/watch?v=TR2iWN6b-LY
If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.
check the lamp ballast board which may the cause of dim and crackling sound. check for bad high voltage transformer and dry joints connector at the ballast board.
The more you play set the longer it will last, it sounds like you may have poor connections, cold solder joints try soldering around flyback transformer.
If you get the problem initially when you switch on the tv means improper misalignment of screen control or screen control malfunction. Problem continuous means check filament supply when the screen in dim condition. There is no supply around 3v change filament supply resister and check any dry contacts.
I just replaced a lamp in a Sony LCD projection that was just over a year old and it was bad. It was a VERY dim picture. You have a DLP but, in either case a dim or dark picture is almost always caused by the lamp.
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