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Equipment Repairs => LCD TV forum => Topic started by: Contrast John on April 11, 2009,12:06:47

Title: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on April 11, 2009,12:06:47

Hi
Got a LG32LC56 LCD TV that switches to standby after 20 minutes or so. It usually restarts but the time before it trips out again lessens until after a few restarts it will only come back on momentarily. Just before tripping out the backlight goes out and after a fraction of a second the green led reverts to red. Seems like an inverter fault. The set uses a combined psu/inverter type EAY34795001. Heating the inverter transformer with a hair drier seems to speed up the faults appearance. Anyone come across this problem before and are these transformers available seperately, or is it a case of change the board.The transformer (ref T701) is marked 2130KP0175A-F.
Any assistance would be much appreciated.
Thanks
John.

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: tv tony on April 14, 2009,09:44:22

it requires the mods doing, special inductors were used but lg say remove them, if you want details i will post them to you
tony walker

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: tv tony on April 14, 2009,09:46:59

just to add, invertor failure will not cause set to revert to standby, but the choke issue will

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on April 14, 2009,11:39:25

Thanks Tony
Would really appreciate details of those mods. Will carry out and let you know result.
Thanks again
John.

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: tv tony on April 15, 2009,06:16:59

right, remove chokes fl901 through to fl906 and replace with wire links, this is official from lg, let me know results
tony walker

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on April 15, 2009,12:14:25

Cheers Tony
I`ll follow your instructions and test run. Will let you know the result.
Thanks
John.

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on April 17, 2009,15:23:03

Hi Tony
Carried out the inductor modification. The set has been on test for 24 hours now with no problems. Thanks Tony, without your expertise this set would probably have been a lost cause (and an expensive one). I`ll run it for a couple more days before returning it to the customer and then give you a final update.
Thanks again
John.

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: tv tony on April 18, 2009,04:37:02

excellent result, took us a while to suss, im sure you will be fine, pleasure, bye

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on April 23, 2009,13:08:59

Hi Tony
LG tv now re-united with happy owner.
Thanks for all your help.
John.

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: tv tony on April 24, 2009,03:46:15

excellent result, glad to help

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: balez1 on May 19, 2010,05:56:41

Hi

i have the same problem with regards to the above TV. Would it be possible for you to send me over the information on how to fix the problem.

Many Thanks

Chris

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on May 19, 2010,14:26:14

Hi Chris
Will do
Regards
John.

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: balez1 on May 19, 2010,15:31:32

THANKS JOHN I WILL GIVE IT A GO

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: obagama on August 15, 2010,16:04:51

Hi John,

I am having same issues with my set. Can you send me the info form your repair please.

thanks

obagama

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: fix2003 on August 17, 2010,02:58:11

lg mod sheet for all

Title: Re: LG 32LC56 LCD TV reverts to standby
Post by: Contrast John on August 17, 2010,12:00:00

Cheers FIXITNOW

 Beat me to it

Regards
John.