Question about NEC MultiSync LCD1720M (Black) 17 in. Flat Panel LCD Monitor

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When I first turn the power on my 1720M monitor, the power light blinks and there is a periodic click each time for 7-10 minutes or more before the screen starts flashing alternating colors. If I do not then wait another 30 minutes or so, when I turn on the computer, as Windows is loading, the screen goes black again with the blinking and clicking power light. Turning the computer on first does not help - if I then turn on the monitor, it never gets past the blinking and clicking power light. What's going on here?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 103 Answers

SOURCE: Monitor shutting off with blinking standby light.

Very expensive to fix.You hve a bad ysus board.Nec will re-build theboards as a set 1000.00 plus

Posted on Mar 22, 2007

  • 86 Answers

SOURCE: LCD Monitor picture cutting out occasionally.

Your CCFLs might be going bad. CCFL stands for Cold cathode fluorescent lamps. These are the lamps that provide backlight for the LCD Monitor. These lamps do not last forever, and are a very common part to go bad. The circuit that provides the power for the CCFL is called the inverter, it might be going bad, but I still think it is the CCFL. Only trained techs should try and replace a CCFL or fix an Inverter. CCFLs do contain mercury, but only small amounts.

Since the monitor works for a few minutes and then goes dark, this tells me you have a problem with the backlight function. I have seen this several times, and I do work on LCD monitors professionally.

http://en.wikipedia.org/wiki/Cold_cathod...

My advice, get a new LCD monitor and sell your bad one on ebay.

Posted on Nov 16, 2007

bluenadas
  • 203 Answers

SOURCE: power lite blinks red and will not turn on

Sounds to me like you're experiencing an issue with the power supply in the unit.

Posted on Nov 21, 2007

SOURCE: monitor blinks on and then off and does not come back on until

no, never got a solution

Posted on Feb 05, 2008

SOURCE: Lamp will not come on

try pressing and holding the enter button on the projector for about 30 seconds - this resets it. It worked for me!!

Posted on Feb 20, 2008

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Caps in power supply do go bad but you will not be able to fix it.
http://s807.photobucket.com/albums/yy352/budm/Bad%20capacitors/?action=view&current=badcaps2.jpg

http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VG800/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
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Please leave rating if it helps.

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1 Answer

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After 10 minutes elapse and the screen goes out, if you power it back on, do you get another 10 min, or does it last a much shorter time period, or not at all?

Your best bet is probably simply to buy a new monitor, and sell yours as "broken" on eBay, I'm sure someone out there capable of fixing it would be willing to pay pennies on the dollar to subsidize your replacement screen.

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1 Answer

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