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LG plasma will not stay on - Projection Televisions

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  • nathan__1188 Apr 17, 2009

    tv switches off about 5 seconds after i turn it on.

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Tv is flashing on off

Posted on Mar 28, 2009

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Is it true that plasma screen has an expire date ,in other words if i buy a plasma t.v i certainly have to loose it or replce the screen after it expires


This is not true at all. the only issue with plasmas are that the Y and X buffer boards will ware within a 2 year operational period. the power boards hold up well if the set is placed in a well ventilated area, of course. Also, you will need to refrain from using the plasma unit for a Computer monitor. this will cause a major burn-in affect that will ruin the display.

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2 vertical bars on right half-side of screen


you are in luck my friend!  i just performed a fix on a gateway plasma that has LG boards inside.  It is exactly what you are talking about.  Go to the attached link and follow the thread carefully and read it all before starting.  IT WILL WORK!
http://www.avforums.com/forums/plasma-televisions/462873-black-line-fault-hyundai-hpt4240-fixed.html

enjoy!
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What id the model number of your LG tv set ?

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Lg plasma has a black screen but has sound


If your screen stays black with no sign of light even when it has been on for a half hour or so, suspect the Y sustain module as the cause. If you can see a faint but very dark picture after a half hour or so, suspect the Z sustain module. In either case the problem usually occurs after hearing a very loud pop. Looking from the back the Z board is the large board on the right connected to the ribbon cables from the plasma display. The Y board is the large board on the left with the big square heat sinks. The Y and Z boards are the most common cause for the symptom you described. The boards may cost about $250 ea. There is a white sticker on the board with the LG part number.
Good luck.

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Plasma Repair Parts


Available from tritronicsinc.com are the following:

6871QZH041A Zenith/LG Z-SUS Cost: $137.44
6871QYH036A Zenith/LG Y-SUS Cost: $238.38
6871QYH053A Zenith/LG Control Board Cost: $189.39

Hope this helps,
Dan

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