panasonic th50px8b

[snopy44]

hi here iam again asking for help i have just got a panasonic th50px8p and it has a 2"black line down the center of the screen the tv work pefect apart from this is this a dry joint on the ribbon or somthing worse any help or advice would be very much aprciated thanks all this is the tv

[Turnip]

Hi Snopy44,

Culled a couple of Quuq bits from another 50 inch panasonic -

1.  Central black bar top to screen middle.
Im afraid you probably have a faulty screen, you could try cleaning the ribbons but I doubt that will be your problem, and there are usually some little SMD resistors that can fail on the C1 or C2 boards(usually about 18 ohms) but if one of those have failed then im afraid its usually caused by a defective screen.

you need to take the back of the tv and and where the black line is on the screen you will see a rippon
you need to unplug the rippon you will see 2 resistors resoilder them and the black line will have gone


All the best - Chris.

PS Had the trouble on a LG and it was dry jointed resistors on those ribbons

[snopy44]

hi thanks for the reply i have just striped down a th 42pe50b dont know if these are sim but on this model there is no resistors on the ribbons on this model so if they are the same would it be better just to change the 2 boards any help is apreciated as iam just learning and as my old mum would say you never get anywere if you dont ask

[Turnip]

Hi Snopy,

Guess mums are the biz and as a son, never yet appreciative 'till - well, still trying to find some good reason.
Well, she would now be 108, and ever complaining.
Chris

[snopy44]

yes iknow what you mean but we miss them when they are gone going to have a look at the tv later do you think it is the screen

[snopy44]

hi have look at the resistors on the buffer panel tnpa4433 were the line is put they all seem ok have retined them but still the same so dose this mean it is the panel keep being told diffrent things some 1 told me to replace this board but i dont want to keep spending money that i don,t have if this will not  going solve the problem

[brainstorm]

Hi

If you have checked the resistors on the C1 and C2 boards and they are ok,then im afraid you will have a faulty PDP panel

Brian

[snopy44]

have bin told today by 2 tv repair guys that it is very unlikley that it would be the pdp if the ribbons are ok and most likley to be the tnpa 4433 buffer board but i dont want to buy 1 and it dose not work so what do i do?

[Turnip]

Hi Snopy44,

Be nice to yer mum, she won't last forever - as to the other post, I know nothing more than that LG had ribbons with nice little resistors that dropped off and earned some a pound

Guess Brainstorm will be right as usual - you never find him licking bus winders - too busy - Chris.

[africandrifter]

High there

Ive got the same problem on the same screen. Did anyone ever come up with a solution?


G.