Mulja tv repair portal

Equipment Repairs => PLASMA TV forum => Topic started by: Turnip on May 14, 2010,09:35:56

Title: LG RZ-42PX11 - vert bar
Post by: Turnip on May 14, 2010,09:35:56

Hi folks,

Have one of these with a 4cm vertical black bar - any thoughts - Chris.

Title: Re: LG RZ-42PX11 - vert bar
Post by: brainstorm on May 14, 2010,09:57:35

Hi Chris,

Try giving the ribbons a clean that address that part of the screen, also according to a certain website there can be a problem with the SMD resistors on the ribbon itself


Brian

Title: Re: LG RZ-42PX11 - vert bar
Post by: daz on May 14, 2010,10:23:48

hi chris
done lots of these , its usualy the smd resistors on the ribbon cable go dry joint.
they dont always look dry but you usualy find as you solder one end the resistor drops off. dont be afraid to get a bit of heat on the pad as they can tarnish and go dry again.
good luck
daz

Title: Re: LG RZ-42PX11 - vert bar
Post by: Turnip on May 14, 2010,10:42:18

Hi, and thanks a lot Brian and Daz.

Knowing virtually nothing of plasma, are these ribbons along the bottom of the screen ?

Thanks again - Chris.

Title: Re: LG RZ-42PX11 - vert bar
Post by: daz on May 14, 2010,10:58:43

yes thats right, there will about 6 or 8 (i forget) ribbon connectors running along the bottom of the screen, if the tv is on its face the ribbon you need will be just right of center, luckely these ones are easy to get to. disconnect from the pcb and fold back, you may have to take two screws out of a metal plate on the ribbon, you will then see the resistors 10r i think, been a couple of months since ive done one so memory a bit fogy.
daz

Title: Re: LG RZ-42PX11 - vert bar
Post by: Turnip on May 14, 2010,11:55:30

Thanks again Daz,

In total ignorance was reading 'LG Plasma explained' and changing input and Digi panels like fury. Have always felt that reading any technical help is a total waste of time when a profitable answer is required.

Tell all my customers this, but they just nod and go on reading - passes the time, I suspect.

Guess you have proved the point, yet again - Chris.

PS - Thanks again Brian and Daz - job done, t'was those resistors hanging off - perfect