Question about Sampo PME-42S6 42 in. HD-Ready Plasma Television
I have a problem with my Sampo 42" monitor. I have had this unit for about 4 years and it worked fine until about a few months ago. When I first turn the monitor on, the picture seems fine with the exception of a few small white lines flashing horizontally accross the screen. After about 5 to 10 minutes the picture turns into a mosaik effect with 13 white vertical lines spaced approximately 2.5 inches apart. However, the white lines disapear again after a while, but the mosaik effect remains. When I turn the monitor off and then on again, the picture is OK for about 5 minutes and then the same thing starts all over again. If you have seen this before, please let me know what the problem could be and if this can be fixed. The monitor is mounted in a corner of two walls and kind of difficult to remove, but it can be done.
Thank you, RD
This can occur due to many reasons...the simplest of those is...
Damaged monitor signal cable...results in improper signal transmission
Also check if ths is a problem with the monitor or VGA card...Just connect it to another computer...If it works then its VGA card problem otherwise its a monitor problem.If you are good in electronics then the problem is
1)You have the typical convergence failure of the convergence correction IC's which need to be replaced
2)Cpacitors on the CRT are damaged and need to be replaced..
If you are not familiar with electronics pls dont attempt a repair as it is a high voltage device and the risk of electric shock wil be high.Just drop into a service center if this is the case
Posted on Oct 12, 2007
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