Home Theater Forum and Systems banner

1 - 17 of 17 Posts

·
Registered
Joined
·
8 Posts
Discussion Starter #1
There is a problem with my tv, there is a neon green color that is in-place of shadows/ dark colors. It doesn't happen all the time, but most. I don't have a clue where to start but I do know that the bulb has been recently replaced.
Any help is greatly appreciated, thanks.
 

·
Plain ole user
Joined
·
11,121 Posts
Start by posting the exact model number and looking at the threads that have info for your model. Note that it is easier to find useful information when the model number is in the thread title.
 

·
Registered
Joined
·
55 Posts
Seems like it is a common ailment. Here in Afghanistan where the MWR area is there are 4 tv's all of different brands but all exhibiting the same problem like you describe.
 

·
Plain ole user
Joined
·
11,121 Posts
It may be the connections on the DNIE chip, but you really should state the model number.
 

·
Plain ole user
Joined
·
11,121 Posts
Can you post an image? If multiple sets of different brands have a similar problem, there is a good possibility that something else is going on. What are the signal conditions, input types, sources, etc? Are the sets internal menus affected?
 

·
Registered
Joined
·
8 Posts
Discussion Starter #7
We have cable so the signal should be good. All of the sources (cable, hdmi dvd, wii) are affected by it. The menus on the tv and on the cable aren't ever affected by it. Here are a couple pictures. I also just noticed on some of the football players white jerseys there was some neon pink. That is the only time I have seen the pink, but the green happens off and on.
 

·
Plain ole user
Joined
·
11,121 Posts
Several possibilities on this one. Is it affected by time or temperature?
 

·
Plain ole user
Joined
·
11,121 Posts
Are there any other symptoms? Does it get worse gradually? True random occurrence is rare and very difficult to troubleshoot. Have you tried heating/cooling?
 

·
Plain ole user
Joined
·
11,121 Posts
We use heat guns and freeze spray, or insulators such as blankets or plastic wrap and fans to increase and decrease temperature in various areas to isolate thermally affected, or effected, problems.
 

·
Registered
Joined
·
8 Posts
Discussion Starter #14
So its been over a month, but.... it seems the tv seems to work fine for the first 10 min. then after that it does the green thing and every now and then goes back to normal for a moment.
 

·
Plain ole user
Joined
·
11,121 Posts
Did you try to isolate the problem?
 

·
Registered
Joined
·
730 Posts
what I would do is get a can of freeze spray. the first board i would try is the digital board. if that doesnt make it go to normaly then i would try to spray the dmd board. to see if it has any effect. if it goes away with one or the other then it gives you an idea of what board is the issue. after you find out the board you can spray parts on the board by themself. like a BGA chip if it goes to normaly then a reflow of that chip may bring it back to life. but if it's transister maybe a quick hit with a soldering iron may work. if not then the part maybe bad. also if you are not that good at trouble shooting you maybe better off to try replacement boards. could even be a bad cap or even a bad solder joint. check on ebay for used working boards if it takes care of the issue then you know you found the bad board. if you still have issues then sell the board on ebay and try another board.
 
1 - 17 of 17 Posts
Top