Author Topic: lg model 32lc2r (Read 7157 times)

michael first · « **on:** July 04, 2011,02:32:31 »

hi,
I have this 32lc2r from lg,which has not osd,the backlights are ok,no sound .no image.I've found out that +6v from the smps is missing.it seems that voltage is derived from +12v power supply which is present.the stage of +6v is made up with 2 fet's,but without schematic I can't repair it.I know lg doesn't supply the psu schematics so I hope someone could help.unfortunately I don't know the model of the psu.thanks in advance.

Mulja tv repair portal · « **on:** July 04, 2011,02:32:31 »

Turnip · « **Reply #1 on:** July 04, 2011,11:47:39 »

Hi Mike,

Think P/S is LGLP2637HEP (got one somewhere) can't find shematic though - Chris.

yomin1 · « **Reply #2 on:** July 06, 2011,08:28:48 »

Hi

schematics manual LG 32lc2r

Mulja tv repair portal · « **Reply #2 on:** July 06, 2011,08:28:48 »

davenjax · « **Reply #3 on:** July 10, 2011,04:52:59 »

hi mike i know these tvs suffer badly from the caps in the psu they all look ok but need replacing anyway if this is any help rgds dave

michael first · « **Reply #4 on:** July 11, 2011,06:09:12 »

Hi,
thank you all for the kind answers.I've replaced 1 bulging cap,but the true problem is +6v missing which is derived from +12v.all the other lines are ok including +12v.there are 2 burnt fet's so I can't read the type of them.anyway hope to find a good psu.thanks again.

Turnip · « **Reply #5 on:** July 11, 2011,13:24:03 »

Hi Mike,

Noticed the manual didn't include a shematic.

As I mentioned, I have that panel kicking about somewhere so if you want any chip info, just say the word - Set was discovered in a hedge sprouting grass, so can't confirm function - Chris.

Mulja tv repair portal · « **Reply #5 on:** July 11, 2011,13:24:03 »

michael first · « **Reply #6 on:** July 18, 2011,05:49:07 »

Hi,
thank all,no way to fix it as the customer decided to have a new tv set.thanks.

ANDRASONI · « **Reply #7 on:** April 06, 2012,04:11:01 »

Hi, i know that subject is old, but we can'nt find the PSU LG LP2637HEP schematics? Is difficult to repair this board without informations detailed. Thanks, from Romania

ANDRASONI · « **Reply #8 on:** April 07, 2012,04:08:31 »

I find the solution : is fault on the 6V line, two IC-S type IRF7807( fet transistors) and the controller IRU3037, faulty, resolved problem.Tippical for LG lcd tv set. From Romania

Mulja tv repair portal · « **Reply #8 on:** April 07, 2012,04:08:31 »

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