Question about Zenith Z50PX2D 50 in. Plasma HDTV

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Where can I purchase a Ysus board for a zenith z50x20?

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  • 88 Answers you may also try salvage sites such as or even ebay. Be sure to get the numbers off the is made by LG and boards fromm same vintage LG sets will interchange

Posted on Jun 04, 2010


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When I turn on my Zenith Plasma it flashes for a split second and goes blank. No picture or sound. I have tried a different power cord but to availe.

My 42" zenith would try to turn on then go back off. LED would go red back to blue. I replaced the YSUS board and it works again.

Jan 10, 2013 | Zenith Z50PX2D 50 in. Plasma HDTV

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Hi. I have a Zenith 42" plasma TV - Z42PQ20 that's

I had this exact problem on my TV, everything said it was the power board. It wasnt, luckily i was able to return that board. It was the YSUS board.

I should have done this this first but this is how i verified the old power board was good. Unplug TV, take the cover off and disconnect the wire harness going to the YSUS, plug TV in and turn on. If led stay blue its the YSUS.

Mar 19, 2011 | Zenith Televison & Video

2 Answers

Zenith Z50PG10 - Have sound, no picture. Is this a control board issue?

Please check Ysus and Zsus boards for no picture/ no light in screen problem.
Click link to view available circuit boards list along with price info for this model.
Hope this will help.

Feb 21, 2011 | Zenith P50W28B 50 in. Plasma Television

2 Answers

No picturte just sound

This is a common problem on these plasma TV's. The problem resides in the high voltage boards known as the X and Y Sustain boards.. You can purchase them here for a very reasonable price:

The above link is to a Y-SUS board. The X-Sus board is often the 2nd cause of failure and can be found here:

To test which board is failing, you need to check voltage input to the YSUS board first... Input should be 120V from Power supply, output should be above 250V.. Do this test with XSUS disconnected. IF 250+V exists, then XSUS is damaged. If not, then the YSUS is the faulty part.

Sep 25, 2009 | Zenith Z42PX2D Television

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The picture went out but sound is good

You can check the voltage through the X and Y sustain boards to see which is damaged.

Voltage travels the following direction on these TVs:

Power Supply: 075235-zenith.htm

Then through Y-SUSTAIN: C-p/vizio-sku9501.htm

Bythe way.. This is the MOST POPULAR failing part on these TV's... Abovelink has it for $154.99 and the quality and shipping time isoutstanding. Be careful buying from a used dealer or someone not as bigas Discount-Merchant is on parts. You may get a part that lasts 1/2 thetime. These boards are like DLP TV lamps, they have a limited lifetimeand if you buy from the wrong place, you will have to replace it moreoften and it can damage other components when it pops!

Next Power travels through X-SUSTAIN:

Again.. only $154.99 and this is the 2nd most common failing part on these TV's..


To test which board is bad you need a multimeter... then test for the following:

1.disconnect the power board from the y-sustain board.. Check input intopower board (is voltage coming in from the wall?) Next, test forvoltage going out of the power supply.

2. Next test voltagegoing to the Y-SUSTAIN BOARD by having everything connected except thelink between YSUS and XSUS. Check for voltage going into YSUS (if powersupply is putting out, then ysus shoudl be receiving).. Next, test forhigh voltage comming out of the YSUS... keep in mind, xsus isdisconnected.

If you get power comming out of the YSUS, this means your YSUS is GOOD and your XSUS is BAD....

If you get no power comming out of the YSUS this means that the YSUS isBAD.. in this case you need to replace your YSUS, however, you XSUS canalso fail when your YSUS blows out.

In order to test yourXSUS, you can use a multimeter to test breaking in the transistormodule that has the big Black or Silver heatsink on it. You can test itby using a multimeter and applying it to the bottom pins of the board.

Again, seems to have many of these boards in stock andthey are my lifesaver! The price is VERY LOW compared to anyone else,and the quality is outstanding. 1 year buying these boards from themwithout a single returned customer.

I bought one off of somejimmy guy on ebay and it blew in 1 month. I though i was saving myselfmoney but the customer was back and very upset. Be careful!

Jul 16, 2009 | LG 50PX1D 50 in. Plasma Television

2 Answers

LG 50PX1D, YSUS and ZSUS board replacement

first thing that you can do is use the Google serch by just typing in lg 50px1d and see if you get any thing close to what you need.

Jan 06, 2009 | LG 50PX1D 50 in. Plasma Television

2 Answers

Zenith Z42PX2D Television

I know it's rather late to post this but just thought I'd post anyway, maybe you still need the help. If you get no sound and no picture but yet an amber light (yellow) also if you heard a pop sound from one of the fuses, there is a good chance that you YSUS board has take a turn for the worst. There are kits that you can purchase for $200+/- that will get you back up and going....for 5 more years.

Sep 11, 2008 | Zenith Z42PX2D Television

2 Answers

Plasma Repair Parts

Available from 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,

Mar 18, 2008 | Televison & Video

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