Question about LG 42PX5D 42 in. Plasma HDTV

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The picture on my lg tv has gone dark. Every button on the remote is working except the menu button.The button on the side for menu is not working either.

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Check and repair the remote control. It sounds that it need cleaning. But lack of brightness to a Plasma screen might be to a faulty Z Sustain board. Check this for more details about the TV fualts, and to how to repair and clean a remote control.

Posted on Jan 05, 2013

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: LG 37LC7D remote doesn't work

 I heard that Best Buy is still selling these models despite this known problem- I am trying to have mione fixed but was told the replacement part is on back order until DECEMBER!

Posted on Oct 31, 2007

  • 20 Answers

SOURCE: 42 LG Plasma picture distorted and flickering

replace the control module.

Posted on Mar 11, 2009

  • 6 Answers

SOURCE: no picture

I purchased four 2200uf @ 25v capacitor’s for $8 at that same repair shop. I upgraded to 25v because these will run cooler. The tv came with 10v Samxon caps that seem to be problematic in all the units they were used in. Do not buy Samxon if you do this yourself.... I opened the set by taking off the plastic back panel and then by removing the second metal panel. There are three boards and a hard drive. The board on the far left just above where the plug goes in is the power supply board. There are five data cables and one red power cable attached to it that can be removed simply by unplugging them. The board is fastened to the unit with five small screws, one on each corner and one in the middle of the right side. If you look for three green capacitors grouped together around the middle of the board and slightly off to the right, you will probably see one that is bulging out at the top. This is most likely "C235", the main problem. The other three caps that need replacing are C202, C201 and C219. C219 is closer to the top part of the board.....
The process to replace is simple, believe it or not, and it could save you hundreds of dollars. 1, Go to RadioShack and buy a cheap soldering iron and a small roll of solder. 2, Buy four, 2200uf @ 25v capacitors, online or at an electronics store. 3, Plug the soldering iron in and let it heat up. 4, Locate C235 on the back side of the board and mark the negative terminal with a felt tip marker (you want to make sure that you put the negative terminal on the capacitor through the right hole, otherwise you will pop the cap. The negative terminal is clearly marker on all the capacitors). 5, With needle nose pliers, grip the cap and pull down while heating up the terminals. The cap will eventually come out. 6, Put the new cap in (you may need to heat the solder that is left on the board to clear the hole so it can push through). 6, When both terminals are through, bend them slightly so it stays in place. Take the solder and stretch out a few inches off the roll and while holding it in one hand, lightly touch the base of the terminal where it comes through the board, with the soldering iron and the solder at the same time. --- Try not to use too much solder.. you only need a tiny drop. This will solder the cap in place. 7, cut off the terminals close to the board with some snips and repeat this on the other three. 8, put the board back in, plug in the cables. Test the TV before putting the back panels on. It should work fine if all went well..... If you hear a pop than you reversed the terminals on a capacitor and that one will need to be redone correctly.... This might sound lengthy and potentially difficult but its worth a try. Otherwise you can pay someone to replace the entire board for BIG BUCKS with the same junk caps on it and have the same problem in a year or so. LG doesn’t want to take responsibility for this and I'm sure that it has cost a lot of people a lot of money for about $8 in parts........... This worked for me and it can work for anybody with the same problem.. Good Luck!

Posted on Apr 28, 2009

  • 235 Answers

SOURCE: Remote not working on my LG 37LC2D

Try replacing batteries and reprogramming both remotes.

Posted on Jul 05, 2009

  • 92 Answers

SOURCE: LG 50PX1D Plasma TV with dark and fuzzy picture

Z-Sustain PCB will cure it.

It is inside the TV, on the Right Hand Side.

www.chsinteractive.co.uk or Google for a replacement.

Posted on Sep 08, 2009

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No buttons work on LG 47LG5000. Neither remote nor the TV side buttons work but I can access all features by holding down 2 buttons for 15 seconds (eg. MENU and INPUT held together first brings up the...


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It's unlikely that a setting you changed in the user menu would have locked out both the remote and the panel.

It sounds to me like the micro has gone bad. One other option, is a stuck or damaged button assembly. Corrosion on the button board can lock the micro.

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There will be a control panel on the TV, usually on the side of the TV. You can use these buttons to enter the menu and adjust picture brightness. You can find an inexpensive universal remote easily.

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I own an ilo flat screen tv and my remote doesn't work, where can i replace it or get it fix


You can get an exact replacement remote here: http://www.remotes.com/remotes/servlet/rs?a=Search&o=c&uid=0&m=42PX3DCV&uuid=13014384668260 . Alternatively, try searching for a replacement at an LG distributor: http://www.lg.com/us/support/parts/support-find-parts.jsp .

Assuming that the sensor is working, any universal remote should work if it was programmed at least 6 months after the TV was released. Try all of the LG codes until you find one that makes all of the features work on the TV. (The absence of Menu and Input buttons can be frustrating with some TVs.)

One way to tell if the remote is working is to take a picture of the IR beam side of the remote when someone else presses a button on the remote. Use a digital camera (like the one in a cell phone). If the remote is working a bright light will appear in the picture when you review it.

If the remote actually is sending a signal, check if the buttons on the TV work. That will determine if the sensor has failed or if the entire board has failed. You may be able to obtain these parts from the LG distributor or http://www.partstore.com.

I hope this helps.

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Try changing the tv picture settings to 16:9 ratio or widescreen/letterbox setting!! Menu > picture> newer lg's also have a quick menu button on the remote. Hope u sort it.

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hi, usually you can correct this issue with only a few system checks, dark streaks can be caused by damaged pixels on the screen, in which case you need to replace the TV.
  • Inspect where the dark streaks are on the television. If the streaks occur at the same place on the top and bottom of the screen, they are due to the formatting of a movie or television show you are watching. This is normal. Also, if the streaks appear on the left and right of the screen, they are due to the show being filmed in full-screen instead of wide-screen. This also is normal.

  • Change the input setting so you are viewing the contents of a different device. If the dark streaks are gone, you know they are due to the device connected to it. However, if the dark streaks remains no matter what input the TV is connected to, the problem lies with the television.

  • Inspect the cable connection. Oftentimes when connecting a computer to an LCD TV, you can have strange dark streaks across the screen. Use a DVI-to-HDMI cable connection when plugging in your computer, then press the "Menu" button on your TV remote, select "Picture" and chose "Square Pixel." See whether the image adjusts and the dark streak goes away.
  • Contact the manufacturer of your LCD television if the dark streak remains. This streak can be caused by a defect in the television; if the TV is still under warranty, you can have it replaced.
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    1 Answer

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    Please rate my solution.

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