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Maintaining functioning of Hp f2105 monitor

HP f2105 monitor goes black after working well for a while. Am able to discharge (shut down, unplug and hold PC tower button for 60seconds) and restart and it's okay for another while until it goes to black again. Solutions?

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  • 11 Answers

I would suspect the monitors internal power supply has issues. If you are capable of soldering and know some electronics replacing bad capacitors is doable at home. Try joining badcaps.net and posting your monitor problems there as that is how I found the info I needed to repair my HP W2207 monitor.

Posted on Jul 19, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1684 Answers

SOURCE: hp f2105 monitor works for about 1 minute and then

Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of he monitor. If you are good at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and -connections, note the stripe on the old one and insert the new one the same way. If you don't want to try the repair yourself we offer a repair service for $45 plus shipping. If your problem is not the capacitors then it would be the backlights and that is much more difficult to replace.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

Posted on Jul 08, 2009

budmrtn
  • 11361 Answers

SOURCE: HP Monitor w1907 problem

First place to check will be the power supply section, look for bad caps with bulging top or bottom seal, post back what you see so we can guide you further, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums

Posted on Jan 27, 2010

budmrtn
  • 11361 Answers

SOURCE: HP f2105 monitor going into sleep mode on it's own

Does it do the same when you use this monitor with other PC, new VGA cable, just need to narrow down the problem first before start taking the monitor apart.
See pictures of what usually goes bad (mostly failed capacitors) with monitors:
http://s807.photobucket.com/home/budm/allalbums
Post back what you find so we can guide you further

Posted on Apr 04, 2010

  • 12 Answers

SOURCE: Monitor power light blinks, then goes out. PC screen goes black.

Unplugging the power cord repeatedly is not a good idea! I hope this helps: 1- After you get a picture, go to "Device manager" (Click on Start-Programs-settings-device manager) and make sure that there is not question or an exclamation mark next to Monitors. If that is the case you might need to reinstall the driver! 2- Make sure that your video card is not faulty by hooking up a different monitor and see if it is working ok. If you still have the same problem, then you need to replace the video card. 3- Check all cables and power cords and make sure that there's good connectivity on all ends (before powering up the machine) and that there are no nicks or cuts. If possible try replacing the monitor's data cable as well. Good luck

Posted on Apr 24, 2010

paul7of9
  • 1189 Answers

SOURCE: monitor going to sleep problem

  • Hi, The Monitor as well the Computer have "Power Saving Modes," [Sleep, ScreenSavers, and Hibernation]; so what you want to do is "Change the way the Computer / Monitor Sleeps!" From the Desktop Screen, click on the "Start Button," next in the [Start Search Window], type: power. In the next [window] that opens, you should see, from your point of view; a "list" in the (left column) "Change when the computer sleep, the wording may be different, but it will be clear enough. Now all you have to do is change the way the Computer and Monitor "Sleep, or Turn-off." If the Monitor have its own "settings;" just find them by the [button on the monitor], and do the same thing as above; but I'm sure the computer will take care of both. If this solution to the problem was of help? Let me know by giving a "Helpful Rating", thanks, and have a "Great Memorial Day!"

Posted on May 30, 2010

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I've seen this solution suggested: Unplug the monitor from power. Hold the power button in for about 30 seconds to completely discharge the capacitors. Now power it back on.
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It is "normal" for a monitor to "go black" when it is NOT connected to a computer.

Connect it to a different computer, to see if the video-card on your computer has failed, and to see if the LCD monitor works at all.

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You may be having either the power supply failing due to bad caps, or failed backlight inverter circuits due to short circuits, loose connection due to bad solder joints, or failed lamp assmblies. You will have to open it up and inspect the inside. Do you have proper tolls for electronics repair, isolation transformer for safety so you do not get killed by high voltages inside the monitor?
You can see what your monitor look like here:
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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Does it do the same when you use this monitor with other PC, new VGA cable, just need to narrow down the problem first before start taking the monitor apart.
See pictures of what usually goes bad (mostly failed capacitors) with monitors:
http://s807.photobucket.com/home/budm/allalbums
Post back what you find so we can guide you further

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If the lamp _totally_ goes off, then you have a problem with the HP monitor.

If it's still under warranty with HP, telephone HP, and get them to trouble-shoot and/or replace it.

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Hold down the menu key on the monitor for 10 seconds. Should get rid of the lock.

My associate is an HP repair tech for 4 years.

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