Question about Televison & Video
The power supply could be failing, capacitors and resistors dry up over time, especially in TVs and monitors that are on and warm all the time. The click you are hearing is some sort of protection mechanism, much like a circuit breaker, that will shut things down if too much power is coming through so the rest of the electronics don't fry. The DIY way would be to get schematics for your tv, grab a volt meter, and open her up. Most power supplies have labeled test points for a ground, +5, +12, etc. when powered on. And when not powered on you can check the resistance on the various resistors to see if any have failed by using the resistance mode on a voltmeter and touching your leads to each end.
You can purchase new power supply board from :-
However , i would advise you to repair it.If you want to purchase a new board, that might cost you more than 100 bucks.
This is time consuming and even if you call tech, he might charge you anywhere between 300 - 500 bucks.
So, my best bet would be if you can repair that it's fine, unless purchase a new one. Because even if you spend a lot of money, it wouldn't give you life long pleasure. These are monsters so it might cause some more issue's within one year ( that's what i have seen on an average )......
You ca purchase service manual that would help you to repair that. Here, we can tell you you need to check board and so, However, the instructions with diagram and moreover, the way of troubleshoot should be given in the manual.
The link for the manual would be :-
You can also buy a repair kit.You need to contact the below site whether they have a repair kit for your model or not.
I hope i have given you enough infomation to fix the issue.
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Posted on Apr 18, 2009
This is a main board issue, the part is around $400, then u install it and the TV must be set up by a technician, it is not plug and play, then a year later another issue and so on, Mitsu TV's are very expensive to repair and once they start to fail they keep doing so until u have more than spent the price of a new much more reliable LCD big screen, these have better picture quality and are cheaper to operate.
Posted on Apr 17, 2009
Have a look on the circuit board especially around the power supply section for bad capacitors. besides visually inspecting them... run your finger across the tops of them.... if they feel swelled up they should be replaced.... replace every bad capacitor you find....and it should work. i just finished fixing an lcd monitor with bad caps.... 5 were gone.
Posted on Apr 17, 2009
The lights are not any known error code pattern.
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 Apr 17, 2009
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Posted on Jan 02, 2017
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