Question about Princeton Digital VL1918 Monitor

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Flickering screen with a claping sound...


read your solution suggestion...
did replacing the three 470 microF capacitors on the Power supply fixed the problem?
I talked to an outfit called and they sell a 'repair fit' that 'reuires soldering' - for $25. is there more to it?


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  • sailor56 Jun 02, 2008

    Thank you Bob,

    I tried and it worked!

    a short trip to Radio Shack, $10 and 30 minutes of work - saved my LCD display from a trip to the junk yard.

    Greatly apriciated!



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From other posts here the repair kit appears to be just the 3 caps and instructions to unsolder the 3 blown caps and replace ( solder back in) the 3 new caps.
Once you get the back off the monitor and start taking it apart you will see 3 capacitors- they are labeled with 470uf25v- it is the only set of 3 caps.- in the power supply ( near where the 110 power plugs in). - Go ahead, take the monitor apart- look for the capacitors- do you see them? If it looks like unsoldering them and replacing them is something you could do- give it a shot, what have you got to loose.

to see pictures of capacitors and to find way more information than you probably want to know - check out
- bad or blown capacitors seems to be a problem with motherboards and evidently monitor power supplies also.

I ordered my caps from Shipping costs about the same as a gallon of gas and I didn't have to hunt them down.
I ordered their part number 647-UHE1E471MPD6.- There are lot of capacitors of this type listed and honestly I just nearly randomly picked one with the same spec and size- but a different brand since the original ones blew. These fit the existing holes on the board exactly and were the same physical size so they didn't get in the way of any other components when I reassembled the monitor.

look at the caps carefully or take a picture before you remove the old ones, to be sure you get the new ones in correctly- there is a positive and negative on them!

My monitor has been working fine since it was repaired in January- 5 months ago.

Posted on Jun 01, 2008


Right on! That worked perfectly. $4.45 for the parts at Radio Shack and an hour of my time. The monitor's back up and running now. Thanks so much!

Posted on Oct 24, 2008


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