Question about Televison & Video
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: TV won't power on.
Open the back of the TV,and look at the can shaped items on the boards.If any of them have the tops,or bottoms bulged out,they need to be replaced.This should get it working again.I hope this helps.If you have any questions,please let me know.Thank You very much!
Posted on Sep 09, 2008
It is the capacitor. It is really easy to fix, and it will cost you about $4. The capacitor is on the power board and it looks like a small battery. The bad capacitor will have a small bulge on the top, the good ones will be flat on top. You can buy them at Radio Shack. Just look on the side of the capacitor to see which one you will need. If you need any further info I would by glad to help. I have a 40in polaroid that this happened to and it works like a dream now.
Posted on Nov 02, 2008
The TV is on protect mode.
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.
If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.
1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.
2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.
If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.
Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
Posted on May 22, 2009
SOURCE: Hisense TL2020 - Won't come on.
Lay unit flat on table, remove stand and rear cover. When you remove back, you will see a power supply board in the middle of the set.There are (3)1000mfd @25 volt electroltics and (1)220mfd @16 volt electrltyic that have to be replaced to return to normal operation. This is not something to try if you are a novice as you must observe polarity when installing these caps. But this repair WILL return set to normal operation.
Posted on Aug 08, 2009
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