Solved

3mm black spot on my plasma screen when certain films play (why)

Posted on 2008-10-09
3
522 Views
Last Modified: 2013-11-06
I have a 42 inch Hitachi plasma screen. I notice that on some movies, i get a black patch, very small but you
can see it with the naked eye.

Think is, put on sky 1 or news or most other things and you don't get it but some films, you get it.

What is the reason for this and what is it. I have a 5 year gte with john lewis, so is it something that i should be worried about and take it back for.
0
Comment
Question by:nathan1038
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 2

Expert Comment

by:DavidESL
ID: 22677128
It could e a cluster of dead or stuck pixels. but they would be visible all the time not just of certain sources.
If it annoys you I would take advantage of your warranty and have an engineer look at it.
Dead pixels are only covered by warranty if there are more than the manufacturers tollerance policy which varies from one to the next or if they are alot in a given area which sounds like it could be your problem.

give JL a call some places will just accept a return based on dead pixel issues and some will end it to the Manufacturuer for evaluation.

0
 

Author Comment

by:nathan1038
ID: 22697373
I noticed something - It happens when I have FILM 4 on (or a film is playing on film 4. -

ALways in the same place - I don't understand it as, said above - how can it be a dead pixel if it is 'alive'
most of the time.

The way film4 broadcast their film's !! who knows - do u ?
0
 
LVL 2

Accepted Solution

by:
DavidESL earned 500 total points
ID: 22700710
it's very odd that it is just on one channel and you're right if it was dead pixels then they would stay dead. Are you able to connect a computer to your screen? If you do you can use something like this to make sure there are no pixel issues
http://www.softpedia.com/get/System/Benchmarks/Dead-Pixel-Tester.shtml

but given that it's only on one channel it's highly unlikely.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A case that appears to me sometimes when repairing LCD laptop screens is typical: It can be seen in several cases : 1 / The screen is very dark but you can see your desktop with a light, and/or you hear the windows sound. First thing to change …
Sometimes a user will call me frantically, explaining that something has gone wrong and they have tried everything (read - they have messed it up more and now need someone to clean up) and it still does no good, can I help them?!  Usually the standa…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…

615 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question