LG42PJ550 with white horizontal band

[Snarfke]

After power on, my LG42PJ550 shows a horizontal wide band on the screen on about 1/3rd (lower part of screen).
Power supply checked and OK.
Y-sus and Y-drv checked and OK.
Any suggestions ?

[Shinju]

Re: LG42PJ550 with white horizontal band

clean and reseat the buffer ribbon cables that is inline with the white void.

With the power off of course, also make sure to reseat the cable perfectly before powering on the unit.

Chances are its a bad panel/buffer but at least try this to see.

[tom66]

Re: LG42PJ550 with white horizontal band

A wide band is rarely a bad panel.
Pictures of the fault?

[sordids999]

Re: LG42PJ550 with white horizontal band

Is this the same fault as the 42PJ350 where the high power copper inductor on the Z-Sus has cracked solder joint which caused the white band at the bottom of the panel ?
Just a thought ...

[tom66]

Re: LG42PJ550 with white horizontal band

Is this the same fault as the 42PJ350 where the high power copper inductor on the Z-Sus has cracked solder joint which caused the white band at the bottom of the panel ?
Just a thought ...

Good point!

Maybe? https://www.badcaps.net/forum/showth...hlight=42PJ350

[Snarfke]

Re: LG42PJ550 with white horizontal band

Indeed it was the same fault as the 42PJ350 where the high power copper inductor on the Z-Sus has cracked solder joint which caused the white band at the bottom of the panel.
Ref: https://www.badcaps.net/forum/showthr...hlight=42PJ350

Resoldering the power copper inductor fixed the problem.

Thanks !

[sordids999]

Re: LG42PJ550 with white horizontal band

glad its working