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How to remove the case on LCD monitors

This tip will explain how to open the case on most LCD monitors. Most monitors will eventually have a problem with the power supply and need servicing. The part most people have difficulty with is opening the case to get to the electronics. You will need a phillips screw driver and a small flat blade screwdrivers. You will first need to remove the stand, place a bath towel on a flat table, lay the monitor down and unscrew the screws holding the base and remove. Next you will need to remove any screws that are holding the back plastic case on, they will normally be in the 4 corners and possibly 1 in the bottom center of the back. Now take the small flat blade screwdriver and insert it between the two halves of the case in the center of the bottom. Be sure to not do this by the control panel so you don't break it. Gently pry the two halves apart. Most monitors will have several plastic latches around the perimeter of the case, usually 2 on each side that will need to be released. As you separate the case halves the latches will release and the back will separate from the front. You will need to unplug the control panel cable at this time before you can get to the electronics. Now you just need to use the phillips screwdriver and remove the metal shield from the electronics to get to the power supply. See pictures below.

Now release the catches as seen below:


Detailed monitor breakdown and repair information can be found on our web site at www.ccl-la.com

Buddy
Corporate Computer
www.ccl-la.com

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replace power supply for mitsubishi LT-52148


see this instruction. God bless you

    • 1
      Unplug the monitor power cable. You should never attempt to disassemble an electronic component without first detaching it from its direct power source.

    • 2
      Remove the screws from the back of the monitor and along the edge of the screen. Depending on manufacturer and model, LCD monitors will have screws located on different parts of the monitor's body. Once the screws are off, use a flat-tipped tool, such as a knife or a screwdriver, to pry the monitor open by dislodging the two halves; be careful not to tear wires connecting the two halves.


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    • 3
      Locate the power supply unit and take its metal casing off. Once again, different models of LCD monitors will have the unit placed in different locations. With the casing undone, unplug cables running from the power supply to other internal components. Mark the cables that you unplug from the power supply--you will have to plug them back in to the new unit.

    • 4
      Dislodge the power supply from its dock. In some monitors you might have to undo screws that hold the power supply unit in place. Remember the orientation of the unit as it was placed, because you will have to insert the new unit in exactly the same way.

    • 5
      Insert the new power supply into the dock and screw it in place. If you do not have a new power supply, read the label on the existing one to order a new one from the manufacturer or from a third-party supplier. Obtain a power supply unit that is compatible with your LCD monitor; never try to use a generic spare. After installing the new unit, plug in the cables exactly as they were in the old unit.

    • 6
      Put the power supply casing back on and reassemble the LCD monitor frame. Gently clasp the two halves of the monitor shut, making sure you have reattached all cables that you unplugged to take the monitor apart. Close the casing, tucking away all cables neatly so they do not get in the way of the monitor casing.

    • 7
      Put all the screws back on. Once done, you should have no leftover pieces (screws or cables).


Read more: http://www.ehow.com/how_6165539_replace-lcd-monitor-power-supply.html#ixzz2ZJV8TbYP

Jul 17, 2013 | Mitsubishi LT-52148 52-Inch 1080p LCD HDTV

2 Answers

How To Repair LCD Monitor


Thanks for being generous, generously you have provided a solution, generously will reap. You reap what you!

Feb 12, 2010 | Computers & Internet

1 Answer

Hi Help desk, My Samsung SyncMaster 540N LCD monitor is taking hours of time of display the desktop.what might be the case?Is it due to CAPACITORS popping out? Need a damn help from you to sort out the problem at the earliest Thanking you, BJR


hi there,

Yes, it's capacitors issue.
I will explain how to fix it:
  • Open the case of the LCD
basically in all LCD monitors have two circuit boards (power supply board and system board)
  • After you open you will see the two boards are
  • You see a board that has a socket for the power source. wrote that the board we're looking for (power supply board)
  • Remove all cables connected to the board and take out the board. (get noted before you unplug it)
  • Now you see it components on board, we looking for capacitor.
  • Looking for damaged capacitors, physically you will see a capacitor on the top like a bloated
  • Replace that capacitor. Done
For More details please read my tips here

Please let me know the result

Thanks.

Dec 16, 2010 | Samsung SyncMaster 540N 15" LCD Monitor

2 Answers

LG1917S-BN Access to power supply - Rear cover removing


You need to use flat thin blade screw driver to crack open the case, starting at the bottom edge of the case first, you may need two screw drivers, when it starting to come apart, leave one screw driver in the partially opening section so it not snap back together while you tackle another section of the case. Most monitors cases these day do not have small slot to show where you should crack open the case at, they just do not want you to fix it.

Feb 23, 2010 | LG L1917S-BN 19" LCD Monitor

1 Answer

My Samsung 2493hm monitor quit working after a power surge. The power light flashes slowly but nothing else happens. Can it be repaired at a reasonable price?


Dear showmetoo99,

Surely favicon.icofavicon.icowiki-favicon-sharpened.pngoneriot-favicon.icoyou can fix it yourself with a very low cost.

I will explain how to:


  • Open the case of the LCD
basically in all LCD monitors have two circuit boards (power supply board and system board)
  • After you open you will see the two boards are

  • You see a board that has a socket for the power source. wrote that the board we're looking for (power supply board)
  • Remove all cables connected to the board and take out the board. (get noted before you unplug it)
  • Now you see it components on board, we looking for capacitor.(see picture below)
46ddc22.jpg

  • Looking for damaged capacitors, physically you will see a capacitor on the top like a bloated (see picture below)
7a91ba9.jpg
  • Replace the damaged capacitor with the same value that you can see on the surface of the capacitor. (In this step you need any soldering tool)
My advice: replace capacitors with higher voltage, like 10V replace with 16V or 25V will be fine.

Feb 02, 2010 | Samsung Computers & Internet

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