ViewSonic V2000s display issues

[olePigeon]

Howdy, got a referral from MacNN.

I got a ViewSonic V2000s for $10 at a computer recycler, plus $30 for a stand. It works 90% of the time just fine, but every now and then it looks like it's stuck in 256 colors regardless of the color depth. It flickers a little bit, too, when it's doing that. I've tested it on different computers when it's doing that, so I know it's the monitor.

Any ideas? I may crack it open and fiddle with it, but I'd like to know where to start.

Smacking it doesn't seem to change anything, so I don't think it's a loose connection.

[retiredcaps]

Re: ViewSonic V2000s display issues

Any ideas? I may crack it open and fiddle with it, but I'd like to know where to start.

Open it and look for potentially bad capacitors. If you require help, please post pictures as per misc suggestion #1 at

https://www.badcaps.net/forum/showpo...1&postcount=14

[EGuevarae]

Re: ViewSonic V2000s display issues

Howdy, got a referral from MacNN.

I got a ViewSonic V2000s for $10 at a computer recycler, plus $30 for a stand. It works 90% of the time just fine, but every now and then it looks like it's stuck in 256 colors regardless of the color depth. It flickers a little bit, too, when it's doing that. I've tested it on different computers when it's doing that, so I know it's the monitor.

Any ideas? I may crack it open and fiddle with it, but I'd like to know where to start.

Smacking it doesn't seem to change anything, so I don't think it's a loose connection.

Open It,post a good picture of both sides of power supply & Logic boards so we can see what you see .

And welcome to BadCaps.Net !

[olePigeon]

Re: ViewSonic V2000s display issues

No pictures yet, I dont have a camera. But I took the board out and it had some brown residue along the edges causing a little bit of rust. I'm going to use a soft toothbrush to try and clean it, then let it dry.

It looks like one of the small surface mount canisters may have leaked.

The other thing that worries me is that it rattles. I haven't figured out where, but I think it coming from one of the capacitors. It's weird.

I'm absolutely horrible at soldering and I could never do surface mount if my life depended on it. I'm hoping a good scrubbing will fix it.

[olePigeon]

Re: ViewSonic V2000s display issues

Well, this turned out to be a long project, mostly because of work... which is a good thing in this economy.

I replaced as many caps as as I could, plus I went ahead and replaced the crystal oscillator. Cost me about $4 in parts at my local surplus electronics store.

So far so good, and the picture looks clear. With my horrendous soldering skills, I'm just happy it turned back on and has a picture. I bought a little bit of solder paste, and that stuff has been unbelievably helpful. My hands shake pretty bad, so trying to keep the solder steady along with the iron was almost impossible. Now I just put some goop down, lay a capacitor on the pads, then just touch it with the iron. It's awesome stuff.

Off to stress test it. *cross fingers*

I never did figure out what was rattling on that board. It still rattles. Oh well.