Friday, October 09, 2009

Princeton VL1919






Symptom: Blue power LED flashes slowly. No Video. Unpluged video source and monitor displayed the "No Video Input" message and then proceeded to "Go To Sleep".


Problem: Found 5 bad capacitors on the power supply board.
3 x 470uF/25v
2 x 1000uF/10v


Solution: Replaced caps and now it works like a charm.
Voila!
I love it when they're easy!

2 comments:

  1. Anonymous19/3/10 13:02

    I want to perform this repair, but I'm having trouble getting the back cover off. (!) I believe it snaps into place, but I don't want to mar the plastic by prying in the wrong places. Can you give me any tips?

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  2. Make sure all the screws are taken out of the back (if there are any, I don't recall). What I do with every monitor that I open up, is start from the bottom. This way any pry marks that you might cause will be virtually invisible, or at least hidden well! You can use something softer than a flat tip screwdriver if you want. Probably best since you haven't opened up very many monitors, I assume. Something like a credit card should work. It may take a little more effort though. I like to brute force them open with my big flathead screwdriver. I can usually have them open in 5-10 seconds without leaving any marks. But then again, I've opened up hundreds and hundreds of them before.

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