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Equipment Repairs => LCD TV forum => Topic started by: samisat on October 23, 2014,15:48:48

Title: LG 32LD320
Post by: samisat on October 23, 2014,15:48:48

Hi I have got this TV in which turn on fine,back light on but no OSD at all. I checked t-con board and changed surface fuse there but as soon as turn on the TV , 2 inductor and a transistor began to blown up. the 12 v is 12.18v. any idea?
Thanks indeed

Title: Re: LG 32LD320
Post by: downunder on October 24, 2014,07:30:38

G'day Sam,

On what board did said inductors/transistor fail, T Con? Measure ohms from T Con side of fuse to ground. Could also be a short in the panel. If these parts can be replaced, remove the flexies from T Con to panel before you turn it on again.

Title: Re: LG 32LD320
Post by: samisat on October 24, 2014,13:01:23

Thanks for ur reply fail components are in main board. If panel has got short , could be repair it or not?

Title: Re: LG 32LD320
Post by: downunder on October 24, 2014,15:27:09

In that case, chances are the short is on the t con. Measure it for shorts at the fuse....T Con side if it's open. You'll likely need another T Con and Main board. is it gonna be worth it.         Bruce

Title: Re: LG 32LD320
Post by: samisat on October 27, 2014,05:37:03

Hi there is not any short circuit on t-con board but still as soon as connect t-con to main board same components fail.
Thanks

Title: Re: LG 32LD320
Post by: Turnip on October 30, 2014,14:02:04

Hi Bruce,

Guess you're getting serious where a Quuq chap is dubious about a problem.
Deff nifty stuff from the Antipodies - Chris.

Title: Re: LG 32LD320
Post by: downunder on October 30, 2014,15:19:07

Hi Sam,

Where there's smoke, something must be drawing xs current.  You might have to chance another conflagration.

Remove the LVDS cable i.e. disconnect T Con from Main board. If no fireworks, reconnect T Con but unclip the flexies from T-Con to panel and try again. Should help to isolate it.

Hi Bruce,

Nah, not serious......just love the smell of burnt electronics. Obviously LG didn't incorporate this into their protection circuits. Makes servicing much more fun.

Bruce