Bright white dot/pixel on Panasonic Plasma

Forums › Home Theatre › Bright white dot/pixel on Panasonic Plasma

berrys

221 posts

Master Geek

Topic # 51807 1-Dec-2009 13:26

Just noticed that a bright white dot/pixel is showing on the top left of my panasonic plasma - TH-42PZ850AZ.

Anyone know what this is, how to fix? Its quite distracting. Bought the set in Dec last year with standard 1yr warranty.

Help please.

Shane

Dingbatt

2973 posts

Uber Geek
+1 received by user: 402

Subscriber

Reply # 278296 1-Dec-2009 13:59

I would suggest if you are concerned about it your first call should be to the retailer. Outline your concerns and try and get something in writing to prove you brought it to their attention within 12 months of purchase. They may point you to a dead/bright pixel clause in the sales agreement or warranty, but if it really bugs you it may not 'be suitable for the purpose it was purchased for'.

Areas of Geek interest: Home Theatre, HTPC, Android Tablets & Phones, iProducts.

rscole86

4154 posts

Uber Geek
+1 received by user: 53

Moderator

Trusted

Subscriber

Reply # 278302 1-Dec-2009 14:01

You can try playing a very fast moving/changing scene. Playing this repeatedly 'may' fix it.

http://en.wikipedia.org/wiki/Defective_pixel#Stuck_Sub-Pixels

wallop

367 posts

Ultimate Geek
+1 received by user: 10

Reply # 278306 1-Dec-2009 14:05

My v10 had a dot in the very top left which turned out to be caused by the mode I was watching tv in. It only appeared when watching freeview tv 1 and 2. If this is the case try changing the mode you use to watch tv and make sure overscan is on.

robjg63

2376 posts

Uber Geek
+1 received by user: 414

Reply # 278325 1-Dec-2009 14:45

Yep - ditto what wallop said - my G10 pana - it showed an annoying white dot top left of the picture - only really showed on TVNZ from memory and only when they had a 4:3 program. Setting the picture to overscan fixed it.

I think TV3+1 had some annoying ragged bars along the top until overscan was turned on as well. I guess its just rubbish around the side of the picture. Anyway - turn on overscan and relax!

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

berrys

221 posts

Master Geek

Reply # 279040 3-Dec-2009 14:36

Yep - overscan fixes it/hides it. Just was concerned that something was wrong with the tv. Doesn't show on TV3 etc, so must be a TVNZ thing like you mentioned.

garvani

1874 posts

Uber Geek
+1 received by user: 83

Trusted

Reply # 279051 3-Dec-2009 15:12

I believe this is by design. I cant remember the technical terms but these dots are there to tell 4:3 tvs where the image stops (yip that was a highly technical description lol). It wasnt until widescreen tv's came out that it became an issue.

edit: And by the way, most manufactures have themselves covered. Unless the dead pixel is in the middle of the screen, or there is a group of them then they will not replace the screen

Jaxson

6449 posts

Uber Geek
+1 received by user: 493

Trusted

Reply # 279064 3-Dec-2009 15:50

Ha was going to comment about it being there on mine but see others have well mentioned it already. Seems to be present on some shows/channels and not others, annoying when you first spot it, but fades to not important after a while. Don't think it's anything bad about your specific tv if that helps put your mind at rest.

Brunzy

565 posts

Ultimate Geek
+1 received by user: 24

Trusted

Reply # 279085 3-Dec-2009 17:19

garvani: I believe this is by design. I cant remember the technical terms but these dots are there to tell 4:3 tvs where the image stops (yip that was a highly technical description lol). It wasnt until widescreen tv's came out that it became an issue.

edit: And by the way, most manufactures have themselves covered. Unless the dead pixel is in the middle of the screen, or there is a group of them then they will not replace the screen

WSS Widescreen signalling