Dirty Screen 36ZP46P

[C.Wolf]

Ive recently bought a toshiba 36ZP46P from currys. Ive noticed what I think is dirty screen syndrome. When the camera pans across light scenes it looks like there is dust on the screen. Is there anything that an engineer can do about this, or if not, is this a common problem on this model?
Thanks in advance for any help you can give me,
Clyde.

[Sgt Steiner]

Also noticing this at times on my 36ZP46 set sometimes very faint others times more noticeable (mostly when playing Dvds).
Can it be fixed to any degree via service menu or ?


Cheers

[C.Wolf]

Any advice would be greatly appreciated by both of us

[Sgt Steiner]

[Sgt Steiner]

My 'dirty screen' now seems to be getting worse each day with more areas of screen exhibiting this horror.

Looks like I am going to have to test Currys guarantee/after sales service

[nig28]

Hi
This can be made worse by any magnetic source nearby-speakers ect.
Do you use the main switch when turning the TV on/off or do you leave it in standby? When cold, if you switch it on using the main switch it will demagnetise the TV, the clunk you may hear is the degause coil.
Nigel

[Sgt Steiner]

Hi nig28

I have a set of Yamaha surround speakers (left, right and centre) close to the set but they are suppossed to be magnetically screened and never affected my old 28W33 Tosh ? also I dont have them on constantly (usually only for 5.1 Dvds) but I guess I should try moving them away (damn no 5.1 !!).
Cant think of any other magnetic source nearby and certainly nothing new in my setup other than the ZP46 itself and a set of JVC Component Leads from Dvd to TV ?

I do switch off the set only goes into standby occassionally for short periods and never overnight.
I do indeed hear a mild clunk when switching on but the 'dirt' is there immediately from switch on.

Thanks for your reply.

[MidnightOwl]

Hi, I've notice the same on my 36zp48p. So you are not alone. I didn't notice it the first week or so. When I did it seem to get worse and then better I've tried adjusting the contrast etc (another AV thread pointed me to some recommended settings) and this has helped a little. The only speakers that I have near the set are those that came with the set. I've yet to try the degaussing exercise, when I do I'll let you know of the results.

[Sgt Steiner]

Hi

Have tried Contrast/Brightness adjustments and whilst it helps a tad the 'dirt' is most definately still there both the irregular patches and the vertical bars I am experiencing. I find my eyes are constantly drawn to this fault now.
So ended up phoning Currys/Mastercare and an engineer is due next Wed (my next day off) to have a look and I have been assured (hmm.....) that if he cannot fix a replacement will be supplied.

Damn shame as with my new Tosh 340 Dvd player the PQ on the TV is superb in every other respect

Cheers

[Battlestar]

The dirty screen effect can be seen on a number of 100hrz televisions from many diferent makes. As far as I know it is something to do with the shadowmask of the televison and beam deflection. ( I dont know for sure) There are some who would advice that an external demagnatising from an engineer may help, but I do not think it will cure it.
My advice is to use the warranty if you have one, or if it is still very new, ask for a replacment.
However a new tv may be just as bad. I had a thosh picture frame 2, panasonic pd30, and 2 loewe televisons which suufered from this affect.

[Sgt Steiner]

Hi David

My set is only 12 days old so still under basic guarantee so replacement should not be a problem (I hope !)

Bit depressing to hear that so many sets suffer this malady

[Battlestar]

Its all down to not enough time given to the set up in the factory and lack of decent quality controll I am affaid. You may find it near impossable to get a tv with out any trace of this, although you should be able to get one that you can hardle notice the effect on it. I have a feeling that there are a great deal of tvs with this problem but because a lot of people dont notice it , it goes unsorted. The trouble is , is that a little knowledge is a dangerous thing and once you know what problems to look for you cant help but find them. Trust me ,I was at a point of real depresion trying to sort out a crt televsion that did not have any noticable defects. Even then I bought a plasma in the end

[Sgt Steiner]

Hi all

Quick update

My dirty screen issue seems to be curing itself at present in that over past 2 days it has become virtually invisible only manifesting itself on very few occassions. I used to see the 'dirty' areas as faint patches on bluescreen backgrounds but even here it is now very faint.

I wonder if the screen being so new (still less than 3 weeks) it takes a while to burn in/settle ?

Of course Engineer is due on Wed and now not much to show him ! but I bloody bet it re-appears as soon as he leaves

Cheers

[Paul Cooksley]

All I can say is "Good Luck" with Mastercare. Even if your set is under 28 days old and Mastercare diagnose a fault (I had exactly what you describe on a Panasonic from Curry's) - they are a nightmare to try and a) get your money back and b) arrange collection when they say they will come.

If the dirty screen issue returns or Mastercare diagnose a fault - definately go for the money back option (if you can get it out of them) - then go somewhere decent and buy a set with much better customer care/service.

Anway, after all the hassle I had with Mastercare/Curry's over the same issue, I really do wish you goodluck if it gets worse or returns.

Paul

[C.Wolf]

Well, ive tried unplugging my tv overnight for 3 nights and since doing this the dirty screen seems to have improved (could this be degaussing effect), now only being noticable on the odd occasion. As sgt stieners seems to have improved though I wonder if this is just burn in of the tv.
Dont forget to keep us posted on the engineer visit sgt stiener. Maybe a professional degause will virtually eliminate this problem.