Question about Dell W5001C 50 in. Plasma HDTV

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Plasma tv dell w5001chd. Will not come on. found zd5022,5021,5018,5019 shorted. I need the value of these diodes in the y sus board.Do you think that is all thats wrong with it.

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  • arjotv Oct 14, 2010

    the diodes did all fail at the same time! and i have replaced them and the tv is now working but i need to know the vaule of the diodes! So I just need to know the value of the diodes to see if i replaced them with the correct ones! by the way there is another person (free user) that has been asking this same question for 2 yrs and has not gotten an answer! i hope to get an answer since i am paying for this service! thanks.

  • arjotv Oct 14, 2010

    the diodes did all fail at the same time! and i have replaced them and the tv is now working but i need to know the vaule of the diodes! So I just need to know the value of the diodes to see if i replaced them with the correct ones! by the way there is another person (free user) that has been asking this same question for 2 yrs and has not gotten an answer! i hope to get an answer since i am paying for this service! thanks.

  • arjotv Oct 14, 2010

    I read your solution.The tv dell model #w5001chd would not come on when I received it.I checked the diodes and they were already shorted.To fix this tv I need the values of zd5022,zd5021,zd5018 and 5019. You still have not answered my question about the value of this diodes.


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Multiple Diodes do not typically fail at the same time.

What were you doing when the failure occured?

Thanks!!

Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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Tv repair.for plasma tv


No screen boards found. Do you mean any of these?
Types of TV Boards Every TV uses a collection of various boards to perform every function imaginable in a television. The boards work together to produce sound and images on a television screen. When certain mechanisms in a TV fail, it might be time to start testing different boards to see if they are functioning properly.

Main Board

The main board is the central hub of a television circuit system. The easiest way to identify a main board is to find the board with the various video and audio inputs/outputs. Generally speaking, main boards also contain a tuner, HDMI, USB, and S-video port. Main boards are one of the largest boards in a television. Main boards might also be referred to as a motherboard, main module, or an A/V board.

Power Supply Board

Another large and important board inside a television is the power supply board.. Usually found in the center of the TV, the power supply board has several connectors that supply power to the other circuit boards. It can contain transformers, large capacitors, and integrated circuits. There is usually a table on the power supply board indicating the different voltages it produces in addition to the signal names.

Inverter Board

Found on LCD TVs, inverter boards are used to mount the LCD backlight. These are smaller boards, usually shaped like long thin rods. If an LCD TV's screen is dark, distorted, or difficult to see, it can be the result of a defective inverter board. Inverter boards fail when inadequate power is not allowing current to pass through the backlight bulb.

Timing Control Board / Logic Board

The timing control board, known as the T - CON board,, is typically only found on LCD and LED TVs. Plasma TVS, on the other hand, use a logic board.. The functions of the logic and T-CON board are similar, as each functions to digitize the information it receives from the TV's processor. This allows the screen to display images on the pixel level. When the T-CON or logic board fails, the screen images may become distorted, leading to pixelation and the appearance of lines on a television. On a logic board, there are slotted connectors on all four sides, while T-CON boards have connectors on just two sides.

X-Sustain and Y-Sustain Boards

Also known as the X-SUS and the Y-SUS, the x-sustain and y-sustain boards only appear in plasma screen TVs. The x - sustain board might also be called the Z-SUS. These boards function similarly, producing proper screen images. Although they serve pretty much the same function, the two boards work independently of each other. The x-sustain board activates all the display lines at once, while the y - sustain boardaddresses all the individual lines of display. When one board breaks down, it probably will not affect the functionality of the other. However, it might be a good idea to have both replaced because X-SUS and Y-SUS boards have a relatively short life span anyway. A failure of one could mean an impending failure of the other.

Buffer Boards

B uffer boards are also only found in plasma screen TVs. Connected to the y-sustain board, a buffer board works to turn output to the plasma display. Common defects of buffer boards include the burning and shorting of power lines.
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You need the ysus board. This is a very common problem with LG's. If it is coming up with the fuse removed you are essentially removing the short from the power supply so that it can come up and deliver other voltages for sound and all. Check out encompassparts.com if you are going to try to repair this yourself. Thanks

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2 Answers

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Usually it is the Y-sus that has the problem. This is one of the boards that sustain the picture on the screen.

For this particular issue, there could also be issues with the y-drives and Z-sus. The way to find out for sure is to take the voltages (Va, Vs, Vcc, etc) on the boards and matching them up with the specified values on the panel.

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1 Answer

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I too have this problem with no help from hh Gregg, where I bought the tv, and no help from Toshiba. I resorted to calling the BBB and complaining about the defective workmanship. I took the tv, which is less than 2 years old, apart and found the y-sus board, behind the y-sus board is a foam rubber spacer to seperate the circut board from the backside of the screen. I think this pad is designed to prevent heat buildup in the y-sus board. The pad itself is held on by glue and that glue melted causing the y-sus board to short out. I noticed this after finding a tacky substance behind the board. The heat from the plasma screen melted this and also the pad itself. Toshiba claims no resposibility because the tv was out of warranty. Thanks Toshiba.

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1 Answer

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the problem was the y-sus board, i had a local tv repair shop diagnos that much for me. although, he couldn't fix it i did some research and found a company in california, itritek.com, who could. you send him the y-sus board and the two buffer boards and he not only repairs them but he upgrades them. apparently the y-sus board gets too much heat and eventually goes out, sometimes the buffer boards are affected too. itritek.com replaces the components on the y-sus board with better parts which are more heat resistent. i believe this will help you with your problem. let me know...good luck.

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1 Answer

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Your solid green "resistor" is probably a fuse and will have an amp rating stamped on it, if you can read it with a magnifying glass. Before you replace that you need to find out what else on the board or somewhere else in the TV is blowing the fuse. Resistors have bands to denote their value unless it is a large power resistor and the value is written on it.

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1 Answer

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Hello, My name is Dave and I can help you fix your Plasma TV. Give me a call. Feel free to give me a call @ 1-503-432-9904 or message me at pleasefixitdave@yahoo.com

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6 Answers

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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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