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Equipment Repairs => LCD TV forum => Topic started by: vinceroger69 on May 18, 2016,18:17:08

Title: schematic needed please
Post by: vinceroger69 on May 18, 2016,18:17:08

for a psu:6709900016b LGp2637hep psu many thanks or does anyone know what causes the constant clicking relay issue on these many thanks.

Title: Re: schematic needed please
Post by: downunder on May 19, 2016,05:19:49

And the TV model is??

Bruce

Title: Re: schematic needed please
Post by: sparky on May 19, 2016,05:28:49

Lgp2637 in above query

Title: Re: schematic needed please
Post by: downunder on May 19, 2016,06:32:46

Not familiar with this model. Is it a plasma?

Title: Re: schematic needed please
Post by: vinceroger69 on May 19, 2016,07:06:47

Sorrys guys its a LG 32LC2D  set ive downloaded various manuals none seem to have a full psu schematic only parts.

Title: Re: schematic needed please
Post by: downunder on May 20, 2016,04:40:02

PSU caps are usually the go with these + the 8 pin smd mosfet Q209 going short. Relay contacts can also cause it.

Bruce

Title: Re: schematic needed please
Post by: vinceroger69 on June 14, 2016,04:42:14

Thanks guys so far ive fully recapped the psu and replaced the 2 mosfets and ic in the 5v and 3.4 volt section although the psu now runs with no clicking and all the other voltages are fine still no 3.4 volts has anyone got a shematic for this psu 6709900016 B so we can try to fault find etc many thanks guys.