Question about LG 42PC3D 42 in. Plasma Television

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No power... Can it be the fuses? how do the fuse look when it blew?

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  • LG Master
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Hi wrensch511,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

You may also replace the power supply board, try online http://shop.ebay.com/i.html?_nkw=LG+42PC3D&_sacat=0&_odkw=d038+transistor&_osacat=0&_trksid=p3286.c0.m270.l1313


http://www.shopjimmy.com/catalogsearch/result/?q=LG+42PC3D

Also check if your unit is under warranty before opening the back panel, it will void the warranty. Avail it because the manufacturer of your unit will fix it for free or a little charge only.

Hope I helped you.

Have a nice day!

Thanks for using fixya.

Posted on Mar 14, 2011

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Posted on Jan 02, 2017

  • 11800 Answers

SOURCE: I have a 2006 Hitachi Plasma 42HDS69 that will not

Blown fuse signals a massive short in the power source of the tv - it will have to be replaced. But before doing that you must find out why the source got fried and if other parts of the tv need replacing - the other components will have to be checked for shorts (as to not fry the next power board) and then the rest of the components tested.
Yes, the tv is repairable, but how much it will cost depends on the extent of the damage. But it will be at least $150 - the price of the new board - plus how much the repairman will ask to do the swap and test the result..

Posted on Feb 14, 2011

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