Question about LG 42PG20 42 in. Plasma HDTV

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My lg 40pg20 won't turn on

When i press the power button it blinks blue then turns red meaning it has just turned off, but now when I press the power button it turns on then off and stays at blue and it turns off and on by itself repeatedly

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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dave1645
  • 834 Answers

SOURCE: lg 26lg30 light blinks red blue wont turn on.

you have a bad cap in the power supply
these are can shaped device thet if bad will vent anf put up on the top the valoue is wrtten on the side trplace them and you should be good to go

Posted on Nov 06, 2009

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freelance-au
  • 131 Answers

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

  • 1 Answer

SOURCE: LG 26lx1d tv will not turn on. Power supply is

Have an LG26Lx1D for about 3 years, dropped off by my son.(Figures).Power light just blinking, but went back to red.Removed back panel, and metal cover. Just above antenna/cable input, its a small fan,mine was full of dirt. Blow off dirt, and make sure its turning freely.
Install back the covers, an voila....its a miracle...its working again.
Good luck

Posted on Mar 21, 2010

  • 2318 Answers

SOURCE: My LG Plasma 42PC3D turns on and off repeatedly. I

Your plasma TV has a power supply 6709900019A. These power supplies failed due to defective capacitors. See the picture below and check the capacitors mark with the red lines. There are 10 capacitors that should be replaced even if they do not show signs of bulging/swelling on top.
The value of the capacitors is 3300uF/10V but you can use 25 volts as long as they fit in the space provided by design.


4c29d64.jpg

Posted on Sep 24, 2010

eagle338
  • 4889 Answers

SOURCE: lg model 42pm4m plasma monitor won't turn on, red

Does the tv make a clicking noise like its trying to turn on before the tv goes into standby and the LED starts flashing? I suspect this is due to a shorted component, most likely to be in the 5V(switching) line and just want to be a bit certain before we start testing the power supply.

Posted on Jul 31, 2011

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