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Computer Monitor power supply is getting power but monitor will not power on

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Tried wiggling the cable and connector? Are you sure the power supply is delivering power can you rell- a meter perhaps across the connector. What voltage does the monitor work at? An alternative stabilized power supply may be a possibliity. Other wise repair shop

Posted on Jun 03, 2007

  • Anonymous Jun 03, 2007

    Tried wiggling the cable and connector?
    Are you sure the power supply is delivering power
    can you tell- a meter perhaps across the connector.
    What voltage does the monitor work at?
    An alternative stabilized power supply may be a possibility.
    Other wise repair shop

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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

1 Answer

Acer AL1711 17" LCD Monitor showing white screen
Hello,

A white screen indicates the power supply board is not putting out the correct voltages to properly power the monitor, just the back light. This type of issue is caused by a failure of the filter capacitors on the power board. You can rebuild your power supply board and bring the monitor back to life by just replacing the the bad capacitors. The problem is that model the Acer AL1711 could come with 1 of 4 different power supply boards install depending and the date manufacturer and supply on hand. If you want to repair the monitor if you could open the unit and get either the model number of the power supply board or send a picture of the board to me I will be glad to help you repair the unit and get it back up and running. You can contact me to send the information at [email protected]

Nov 30, 2012 | Acer AL1711 17" LCD Monitor

1 Answer

Compaq 1720 monitor: the green light on the power supply went away, the voltage converter was very hot and the monitor went blank
You need to find out if the power supply is still putting out 12vdc, you may have to test it with a load (use 12v car bulb such as the brake lamp). It is getting hot can be due to bad power supply or too much load because of short circuits in the monitor. Please post back what you find about the power supply first.
http://www.unitedsale.com/AC-adapter-Power-Cord-Charger-12V-35A-For-Compaq-1720-LCD-Monitor-Brand-New_p_219.html

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague

Sep 03, 2010 | HP Compaq 1720 (Carbon, Silver) 17" LCD...

1 Answer

Monitor
Bro it occurred that your system hardware has experience a low power supply wattages that cannot support your entire system hardware wattages requirements. Better change your present power supply into a higher power supply wattages.

Jul 05, 2010 | Computers & Internet

2 Answers

I NEED TO GET THE POWER SUPPLY OF THIS MONITOR. MAY YOU TELL ME THE FEATURES AND WHERE CAN I GET IT. THANKS
You should be able to get the power lead for your monitor from the manufacturer or online on auction sites for pretty cheap.

Hope this helps!

Feb 04, 2010 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

2 Answers

When powering on get no input to monitor board nu a7n8x-e
Make sure you have connected into the correct video port. DVI should be used for LCD monitors and VGA should be used for CRT monitors. Since both ports look the same people often get confused. Try it and let me know.

Sai.

Jan 02, 2010 | ASUS A7N8X-E Deluxe NForce 2 Ultra 400...

1 Answer

Kogi 17 Monitor
Hi the power supply is integrated into your monitor hence you cannot buy it as aseparate component . Get it repaired by service tech guy.If you have knowledge about electronics then I can guide you to repair it.

Mar 24, 2008 | Computers & Internet

5 Answers

Hp flat screen monitor
It's probably your dc power supply.

Mine would blank just 2-3 seconds after power-on.
I pulled this monitor out of the garbage - someone threw it away. I found any old 12vdc power supply I had laying around (1 from an hp scaner 1250mA, another rated at 600mA) neither could supply the current (amps) required to run the backlights, therefore backlights shutdown, monitor goes blank--monitor stilled powered on, but black.

I tried all of the disassembly, re-solder various solder joints on the LCD Inverter board and removing the heat/magnetic shield from inside the back cover of the monitor. Nothing worked.

I bought a Segate 80gb external hard disk drive that came with a 12vdc power supply, looks like a typical laptop power supply, rated at 3A (3000mA). Plugged it to the monitor, it powered up, and it works flawlessly.


Oct 19, 2007 | HP Pavilion F1703 17" LCD Monitor

2 Answers

Supplying power to the monitor to get it to work
I think what you need is a "D" shell connector.. see if the one that fits your PC Power Supply will fit into the Monitor.. if so then purchase another the same. It's called a "D Shell" Power Cord.

Aug 20, 2007 | HP Pavilion F50 17" Flat Panel LCD Monitor

1 Answer

E17T Monitor
monitor problem any short circuit may be in secondrry side of monitor

Mar 15, 2007 | E-Machines E17T 17" Flat Panel LCD Monitor

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Replace power supply for mitsubishi LT-52148

  • Mitsubishi LT-52148 52-Inch 1080p LCD HDTV

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electroletic capacitor,(c707), to be bloated

Jan 24, 2014 | Smart Modular SV3170A

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