Question about LG RU-42PX10 42 in. HD-Ready Plasma Television

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Taking off the back to check fuses

How do I take off the back of the tv to check the fuses without causing damage to the tv? If this is the problem where can I get more fuses?

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There are tiny screws in the back of the tv if you make sure you locate all of them and remove them carefully the back lifts off without causing damage. Make sure you keep note of which ***** came from which hole as the screws very in length!
We got our fuses from an electrical wholesaler Maplin.
Hope this is of help?

Posted on Mar 12, 2008

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I was watching TV and it just cut off. There is no power light on and the outlets are working and the cord is firmly in.


good day sir/maam, chances are yout tv just blew a fuse, when a fuse blew up, there are several reasons.
  • It protects your tv from further damage.
  • a part of your tv got bad, causing it to blew.
You have a choice of calling your service center/dealer or do it your own.

If you decide to do it yourself, these are the steps you may need to do.
  1. Open the TV's back cover, to access the circuit. locate the blowned fuse.
  2. you may need to pull out the entire board, to test it.
  3. test the switching regulator IC/transistor for shorts, (you may need a multitester).
  4. check for open low value resistors, less than 100 ohms.
  5. You really need to find the cause of the blew up fuse. part by part checking is necessary,
  6. replace the bad parts and test again.
  7. if everthing else fails, you really need to call your service.
note: if you simply replace the fuse without tracing the blew up shorted bad part, chances are the fuse may blew again.

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Hello gladwin6,

You may have at least a blown fuse. However you may also have other damage to your power supply. This often happens due to the voltage spike caused by the power coming back on suddenly. You can check to see if the fuse is blown, however once you change the fuse and if this does not take care of the problem, I would suggest that if you do not have a background in electronics, that you have a qualified technician take a look at your TV set.

I hope this helps,
Thank you,
Shuttle83

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