Question about LG 50PX5D 50 in. Plasma HDTV

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When the tv goes pop how do you tell which board has failed. i have seen posts about the x sus board the z sus board and the y sus board

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The majority of the time it is the Y Sustain module. I, myself being in the service industry, I always replace the Y drive boards also. The Y main is the large board on the left and connected to that is the y drive boards or board, depending on the model. Check for pico fuses open on the Y and that's a give-a-way.

Posted on Sep 11, 2009

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3 Answers

Heard a pop and the picture went out


Usually a pop means the an capacitor has failed. You will have to open up the tv to find which and why it has failed.

Feb 14, 2010 | LG 42PC3DC 42 in. Plasma HDTV

1 Answer

LG Plasma 42pc3d turns on, pops, then turns off


The first thing you should look into is the Z-SUS board, the one situated on the right side viewed from the rear. This board develops a high voltage during operation that might be the source of the popping sound. It is also responsible in refreshing the panel for proper picture display. The weird colors on your TV indicates a faulty Z-SUS board.
Note: Unplug the TV and wait for at least five minutes in order to allow the voltages to drain before you disconnect or reconnect any connector.

  • Disconnect the Z-SUS board from the Y-SUS board. The Z-SUS board is situated on the right side viewed from the rear of the TV while the Y-SUS is on the left.
  • Plug the TV back and turn it on.
  • You will still be able to see the weird colors the moment the TV shut off but do not flash. If it does not pop and stays on and there's a sound, you are pretty sure the Z-SUS board is faulty. Replace it.
  • If it still pops and shuts off, disconnect the Y-SUS board from the power supply. The Y-SUS board also develops a high voltage during operation. The power supply is the one right between the Z and Y-SUS boards.
  • Re-apply AC power then turn the TV on.
  • You'll not be able to see any color or video. If it does not pop and stays on with sound, you have a faulty Y-SUS board, replace it.
  • If it still pops and shuts off, please let me know.
Feel free to update me of the result and your own findings.

Dec 03, 2009 | LG 42PC3D 42 in. Plasma Television

1 Answer

Tv made a loud pop sound then went black...sound and all functions are normal just no picture


This is a common failure in many PLASMAs. One of the boards in the TV blew. Most likely It is going to be the Y-sus but could have also taken out the Z-sus(sometimes called the X-sus) and the Y-drives. These boards put and maitian the picture on the screen. The best way to tell is to check the voltages on the boards to see how extensive the damage was but I would defintly start with the Y-sus.

Oct 08, 2009 | LG 50PX4DR 50 in. Plasma TV

1 Answer

HDTV was ruuning & then popped. Then nothing


This is a common problem on these plasma TV's. The problem resides inthe high voltage boards known as the X and Y Sustain boards.. You canpurchase them here for a very reasonable price:
http://www.discount-merchant.com/Y-SUSTAIN-FOR-42-PLASMA-TV-PN-6871QYH036A-p/sku9510.htm

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:
http://www.discount-merchant.com/X-SUSTAIN-6871QZH041B-6870QZE017D-6871QZH052D-p/sku9509.htm

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

Jul 05, 2009 | Zenith Z42PX2D Television

1 Answer

I am having two problems with my Sony PFM 42v1 TV monitor.  The first problem is that it is having that double-image that other people have posted about.  That is, the top half of the screen is basically...


I suspect you have a SUS board failure, but it may be worse than that. What it sounds like is the SUS board that drives the bottom half of the panel has failed, but the problem may not end there. The only way to know is to replace the defective SUS board (Y SUS) and possibly the Y DB (driver board). The real possiblilty exists that you may have a bad plasma panel as well, but the only way to tell is to replace the Y SUS and Y DB boards first and see what happens and what you have. The repairs are DEFINITELY NOT something an average consumer should attempt, as there are adjustments that must be done after replacing the boards and the very real possiblity of ELECTRICAL SHOCK exists. I wish I had better news for you; please don't rate me poorly for giving you the correct information.

Nov 28, 2008 | Televison & Video

1 Answer

Haier Upgrade Kit


In one of my earlier post I posted the phone number where to order the board. However they were on back order so I got lucky an located the upgrade kit on Ebay. I'll post the part number for the kit and boards you need. TV-3940-01 is a kit that contains the following parts:
Control Board – TV-5210-39
Y-Sus – TV-5210-35
Z-Sus – TV-5210-37
EEprom (2006 version) - TV-2455-03

Apr 13, 2008 | Haier 42EP24S 42 in. EDTV-Ready Plasma...

6 Answers

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

Dec 21, 2007 | LG RU-42PX11 42 in. EDTV-Ready Plasma...

2 Answers

Lg 50px4d pdp tv


This is a very common problem with model. This problem is your Z sus Board. NOT your power supply, or Y sus board. There is a pair of Diode that goes bad. Your only solution is to change your Z sus Board. Part Number 6871QZH036B average cost $237.00

Best regards
Circuitcity

Jul 15, 2007 | LG 50PX4DR 50 in. Plasma TV

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