Question about Maxent MX-50X3 50 in. HD-Ready Plasma Television

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Lg plasma tv screen blck

Bord z and y sus seem to me is good all capsetar ok

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  • Maxent Master
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The Y sus and both buffers will need replacement. all 3 boards must be replaced together.

Posted on Dec 11, 2012

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Posted on Jan 02, 2017

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My plasma LG TV was working fine , I was in a hurry and turned off the remotes, might of pressed wrongbuttons, any way Now the tv is totally Black - no picture, I have sound to all the channels they all...


Honestly you are probably looking at needing the Y-sus and X-sus boards replaced in the tv..plasmas take two boards with very high voltages to ignite the plasma gas in the screen. Ebay is a good place to look for used tv parts and just be careful replacing them..VERY HIGH VOLTAGE! Other than that, it's just plug and play...out with the old and in with the new.


Please rate if this was helpful!

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We have changed the Y sus and the Zsus boards and the power supply we still have NO video we have good sound only a black screen no flicker or nothing Thanks Walter


Than ur tv the 2 buffers boards are good.Nothig are wrong with the Y SUS or Z SUS boards.The tv Tuner signal board is dead,that the board,where the incomming broadcasting signal cable plug into it.Try website like Ebay.com to buy a refurbish Tuner signal board for the replacement.

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Buffer boards or Y-SUS main needs to be replaced. What do you mean by motherboard? The power supply board or the Logic or X main.... They YBU/YBL and the YSUS work in unison. Y-Buffer upper controls top half, Y Buffer lower control bottom have YSUS controls both of those. There is also D, G, E F boards that can split screan. But they to are controlled with the Y-SUS Main. Hope this helps...

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Hello,
As per your description Your problem may be with Y-sus board.(It could be 50:50 chance of Y-sus or Panel)
How to confirm:Follow these instruction.

On Y-sus board there is 2 preset Variable resistors VR1 and VR2.Try to adjust slowly VR1 first and see any change in your Plasma Panel.If speckle amount reduces change Y-sus.

Otherwse you have a bad panel.

Dont forget to rate!

GoodcLuck
Dals123

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1 Answer

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Open the back cover and check the fuses on Y Sus Board and X Sus Board. If you can find a blown fuse, just replace that board and your problem will be fixed.

Feb 23, 2008 | LG RU-42PX10 42 in. HD-Ready Plasma...

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My LG Plasma TV RU42PX10C


Hi all..i had the same problem with my 42 inch LG
rz42px11. its a faulty zsus board(Z sustain part no 6871QZH033A) the pop
sound was the fuse on the board blowing.not that hard to replace but be careful with the connector ribbons! got my replacement from
https://www.chsinteractive.co.uk/ £150....expensive,but probably cheaper than
calling someone out to fix it.
P.S i tried just to replace the fuse on the board T2AH 250v but it blew,i think the fact the fuse blows means the board is faulty..but you could try.
hope this helps someone.
Good Luck

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