Dead Set after power surge

You have a short. Check the insulation on all wiring that carries + voltage - possible that some wire may have lost insulation and is abutting some metal part shorting it out.

Scott, I have the exact same problem. What ended up fixing this? Thanks! - Paul

Hi:
You may have to at this point open the main unit and check your line fuse for blown condition. If found blown replace fuse with same voltage rating and ampereage rating.

Now ur tv LED power light indication on the front LCD panel flashes?Yes,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay,com to buy a refurbish power supply board for the replacement.

if the fuse was at the or near the AC plug chances are your got a power surge, if you did you got very lucky the fuse was there you might want to get a surge protector on the set ... But sometime you get just a defective fuse as long as the set is working I would not worry about it

Look at the power supply module, most of them will have a surge protection devices (called MOV, same as used in common surge power strip but cannot handle big surge that power strip can handle) installed to protect minor surge, it should blow the fuse. Once MOV blown, it will more likely stay short circuit, if you put the new fuse in it will blow the fuse right away. You need to see if the MOVs blew up any sign of blown up components.

I have worked on several of this model for power surge damage. Usually what I find is a blown fuse, a shorted regulator i.c. and possibly a blown bridge rectifier(diode array). On rare occasions you can solve this problem by replacing only the fuse, but if the fuse blows when you plug the set in, you will more than likely find above mentioned parts have failed. The best thing to do is to call a repairman but if you have an ohm meter you can test it yourself:1.Unplug set and remove rear cover.2.Get spotlight and look closely at where power cord connects to circuit board.Small glass fuse will appear black if open usually.Otherwise,test for continuity, or just replace it.3.After replacing fuse plug power cord back in while looking at fuse.If you see an instant flash, fuse blew again meaning you will need to obtain parts in power supply and solder work will be required. That is probably as far as I can take this other than saying that you might first want to look at underside of circuit board to determine if major surge damage has occurred. If it has you will immediately know because it will have burn marks all around a/c power supply. I hope this helps, Russmann.

Hi, you can get the fuse at Polk Audio. 800-377-7655. You can talk to technical, too.

power surges generally damage diodes and capacitors causing the fuse to blow, any reputable tv shop can repair for a fraction of replacing this set.

if you are not a tech have one check your tv,the voltage regulator is shorted and needs to be replace.this component can be found in the power supply.i do not have the part number and location as i have no schematic for this set.

good luck