Having problems with your Princeton Digital VL2018W Monitor ?

Can changing 3 capacitors on motherboard solve my problem?

\015 I had someone suggest this solution: to change the three 470uf 25v capacitors to 50v. \015\012Problem: I have a princeton monitor (VL2018W 20"). i bought it used. it has a 'common' problem that many of this model have; it worked PERFECTLY fine until one day when i turned it on, the monitor started flashing a blank screen, the monitor light was on though. The picture on the screen doesn't come on.\015\012So- would changing those 3 capacitors (i'm supposing the ones associated w/ the display) solve this problem? I know nothing about computers and would just like a second opinion before my husband rips out the original capacitors. thanks SO MUCH for your time!!\015

Answers :

We had a power surge and my VL2018W LCD monitor stopped working... blank screen and flashing blue light.

I carefully opened up the back and found the power board (the one the AC plug goes into). There were about 5 electrolytic capacitors that were bulging (but not ruptured). There were 3 with the values listed by the original poster (470uF @ 25V) and 2 with 1000uF @ 10V.

I scrounged a couple of 2200uF@10V caps for the last two and bought 3 470uF @ 35V caps from Radio Shack (P/N 272-1030).

Luckily, the monitor came right back up and seems to be OK. It was out of warranty, so there wasn't a big risk.

Just increasing the working voltage won't do that much for you. If any caps are bad, just replacing them with the same value is good enough, but a higher working voltage won't hurt (usually means a bigger cap).

Good luck.

Rich
I had the same problem as described on previous posts. I have a pair of these princeton monitors and both failed after about a year in exactly the same fashion. I tried replacing the three 470uf caps with 470uF 35volt caps from Radio Shack. Worked like a charm. I was unable to find 50volt rated caps locally but ordered some and will try those on my second monitor. The replacement is easy if you know how to solder. Just be sure to orient the capacitors correctly. Put one in backward and it will make a loud noise and smoke like crazy (AMHIK).
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