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Try disconnecting unit from power source for several minutes.
Before re-connecting power hold power button for 5 seconds and I hope this resolves your problem.
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replace the power supply of your tv it is located at the back....of the monitorthere is a shorted component of your tv specially the supply of the lcd backlight.
Use the buttons at the bottom of the screen right below the bezel with the ON/OFF blue light. The buttons are hidden as they face towards the floor. But you can access the OSD by using MENU and you can navigate using the CH +/- or VOL +/- unfortunately I can't check because my TV is being repaired (got the same model)
Anyway if it helps here is the order of the button left to right while looking at the screen:
[INPUT] [VOL-] [VOL+] [CH+] [CH-] [MENU] [POWER]
I hope this helps you :)
Since you lost both sound and picture, I would suggest to take a look at the power supply for bad filter capacitors, look for bulging on the top of capacitors. If the backlight inverter board is bad you should still get the sound.
The electronics are known to go bad with these TV's, and I'm looking to buy someone's junk TV that has a good screen, rather than have to throw it out. (So if anyone is out there with a 532-B12 that isn't working, send me a message!) Yours might be worth fixing - however I know sadly that parts are nearly impossible to get for these TV's, and the manufacturer is virtually impossible to contact. If you DO manage to contact anyone (manufacturer or otherwise) who can source or supply parts, PLEASE do let me know - it's been nearly impossible for me, and I want to replace my cracked screen in my TV. If you can't, please let me know - I'll gladly give you a few bucks at least to salvage the screen from your TV, to transplant into mine, rather than turning it into junk on your curb.
you have a broken inverter board. I have a LT30HV, and it had the same problem. The inverter board supplies power to the backlight. Swap it out with a good one, and you're back in business.
To test, take a bright flashlight and point it at the screen just an inch or so off the surface. If you can see your picture, then you have a blown inverter.
it may not be worth fixing it. Wait for a good sale on a new one. My inverter cost about 150, and it was a remanufactured part. Not as good as the original part as it flickers just a tad. I had to take the entire TV apart, with pieces literally everywhere. My cats loved it.
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