Question about LG 37LD450 37 in. TV
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Posted on Jan 02, 2017
check the back of the set and see if there is a red reset button, or try unplugging the set for a couple of minutes then plug it back in. If you have cable or dish make sure these have reset properly,
Posted on Nov 29, 2009
Did you have any luck? My LG is stuck in demo mode too. Menu button doesn't work, and keylock was on as default so I can't use the buttons on the TV itself.
Posted on Nov 30, 2009
SOURCE: 61" plasam TV will not turn on
This is one of two problems, Bad capacitors in the power supply or your Y Sustain board has failed, I would go for the first, take the back off your tv and look for swollen or domed shaped capacitors on the power supply, They may also leak a brown liquid like substance.
Replace all that you can see and this should cure the fault.
Posted on Mar 05, 2010
Hello sir, hi, the symptom you have describe can be traced on the Power Supply board, either minor problem such as loose connections and screws, or a major one that needs replacement of the entire Power supply board.
Have a look, and check for loose contacts, screws that needs to be tighten but you need to open up that big TV.
Or if that does not solve the problem, its the major one, needs to replace the entire PS board.
Posted on Mar 13, 2010
SOURCE: LG shut off by itsself
Tries unplug,replug the tv back like an hour later.The tv,now it will resetting itself back to the factory setting.The tv should work now.Not,than the power supply board is dead.That the board,where the power a/c cord plug into it.Try website Ebay.com to buy a refurbish power supply board for the replacement.
Posted on Oct 25, 2010
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