Question about Dell W4201C 42 in. Plasma HDTV

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Ysus board whats the difference between the ysus board and mainboard p# v0901ga04 in a dell 42 inch plasma

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The mainboard, controls the audio, Tv Tuners, Vga , HDMI, S- Video inputs.

The Y sus or (Y-Mainboard ) Is used to control the Panel (LCD) Video, it has 2 buffers that contol h/v lines in upper & lower regions.

Posted on Apr 28, 2009

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My dell 4201C, didn't have any issue with color, it just shut off one day and would not come back on. The blue light shines but thats it no sound or picture. help before i toss this tv out.

Posted on Dec 01, 2009

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Posted on Jan 02, 2017

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LG 42 inch plasma. Half screen is ok (rh side) other side black


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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1 Answer

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Check and replace that board. Just visit the site linked here. Y Sustain board faults and symptoms of plasma display is given in details. http://electronicshelponline.blogspot.com/

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1 Answer

The screen has red snow with red lines going down the screen. What could be the problem? Thanks


Your YSUS is overloading, If you take the back of the TV off, its the larger board on the left, it is connected by orange ribbons to two vertical spanning boards that are thin and long, those are the buffers. Looking at your Y main, you'll see four small philips screwdriver adjustment recievers, they are about 1/4 of an inch square, these control the different voltages used by your board. They are tricky to align just right, BE CAREFULL and adjust these slowly with the power to the TV on and see if you can clear up the snow. PLEASE take it easy and watch what you're doing, these boards are running super high volatges and can put you in the hospital or worse. If you don't want to deal with it adjusting it, start by replacing that YSUS board. Usually when either the buffers or the YSUS is bad, it takes the others out with it. If the snow doesn't clear up, replace the buffers. If this still doesn't fix it, you can try replacing the XSUS.

Feb 02, 2009 | Philips 42PF9630A 42 in. Plasma Television

1 Answer

Dell 42 inch plasma has no image or sound


needs new panel and a updated power board. firmware must be 51-7 (current)

Jan 21, 2009 | Dell W4201C 42 in. Plasma HDTV

2 Answers

Samsung 42' plasma tv,screen keep flashing, blurry,no pics


I'm not really sure what causes this but I might be able to help.
I have an LG 42 plasma which had the same problem. In my case I removed the video and the tuner board (they both were mounted on the same frame which was screwed on the tv chassis) and installed them in a "wooden box" so that there would be no electrical contact with the rest of the chassis except from the cables connected to them. It now works fine.

Jan 11, 2009 | Televison & Video

1 Answer

Lg 42 in plasma ihave a 6 in discolored line acrossthe bottom of the screen. can it be fixed


Two causes for this failure.
1. The Y SCAN board or YSUS board failure. Your can replace the failed boards with reasonable price.
2. The PDP Panel failure. Very expensive to fix this failure.

Good Luck!

Aug 31, 2008 | LG 42PX4DR 42 in. Plasma TV

1 Answer

42" Philips plasma screen goes black


You have a Ysus problem. Sounds like a cold solder joint or loss connections on ysus main board.

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1 Answer

42 inch LG Plasma TV - Lost picture


ysus pcb that supplies voltage to the panel is faulty

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2 Answers

Maxent-42" HD Plasma


i havn't been able to get a tech manual yet for this unit..however...the plasma display has lost power...i would replace the X board and Y boards, including the Ysus boards(upper and lower Ysus boards.

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