This unit want come on. a high pitch sound come from the powersupply board. how can i get another power supply board

Sounds like power supply board is bad

TV not turning on; making high-pitched sounds - Tom's ...

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Nov 30, 2013 - 7 posts - ‎2 authors
Both of them are refusing to turn on, and make high-pitched sounds when plugged in and unplugged. More about : turning making high pitched ...Missing: ear ‎piercing

Top 136 Complaints and Reviews about Funai TV ' Page 2

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Rating: 1.1 - ‎65 votes
We unplugged the unit and waited 15 - 20 seconds and plugged the unit back in, and it wouldn't ... He heard a loud high-pitched whining which led him to TV in my daughter's room. ... It only makes a humming sound now, no pictures at all.Missing: ear ‎piercing

HELP! what is that high pitched noise when tv is on? - TV - Audio ...

www.tomsguide.com/forum/60895-6-help-high-pitched-noise

Jan 25, 2013 - 3 posts - ‎2 authors
Hello, I hear this constant high pitched noise, almost like ringing, but even ... pitch

The tv have a problems in it power supply board,that the board where the tv power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish tv power supply board for the replacement.Power supply board have some bad high voltages transformers.That why ur tv even getting a high pitched sound even the tv it is off and tv it is not even on,and tv it is on standby mode only.

The power supply board have fail badly,all that high pitch screeching sound,it came from those high voltages gaps from those tranformers,that giving ur tv high voltages.The power supply board,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.

Ur High Votage is dead.FBT.The flyback transformer is dead.The big block of plastic with a red wire soldering to a board that high pitch came from.Also DM power supply board might have dead parts too.

Jim.

Ck 5 volts stand by from power supply to main pcb. No voltage replace power supply.
Voltage replace main pcb.

The unit has a 1 year full warranty.
Contact LG @ 1800 243-0000 if you are just out of warranty.

They may help you out.

High pitch sound on LC-42D62 is reproduced by switching transformers on power supply board. To correct this problem, you will need to remove power supply unit from the TV, spray all transformers with SILICONE CONFORMAL COATING. Let it dry for 12Hrs. Then install power supply unit back.

Sounds like a power supply problem,suggest you check for bad caps on board,probably deformed or bulged out

this is the line lin coil needs replacing

I ordered new Capacitors for my DVD Player 2 Panisonic 1500uf 10v 105° caps and 1 Panisonic 1000uf 10v 105° cap and soldered them into the powersupply where the oviously swolen / leaking capasitors were and walla it powers up and no more high pitch noise but I can't get it to eject the cd or anything. It shows on the screen but it just says loading. My guess is it did some dammage to other components inside the machine. I suppose it was worth a shot but now I am going to toss it and get a name brand. ILO isn't in business anymore... Oh and yes I did try the reset button abov the DVI connector...