Re: Viewsonic VA800 with rolling lines



ouch. ALL of them? Desoldering these is kinda tough for me. I'm using a 15 watt soldering iron.

These are the surface mount beer can ones right?...

Re: Viewsonic VA800 with rolling lines

I just found a way to connect a spare computer p/s to the monitor and got the same rolling lines problem.

Re: Viewsonic VA800 with rolling lines

It says 12V 5amp on the back of my monitor.

I don't have a bench p/s. I have an old computer p/s that will supply 12v though. But not sure of the best way to connect it up.

[URL=http://cgi.ebay.com/AC-adapter-for-HP-CPQ-L1750-Pavillion-F50-F70-4-pin-LCD_W0QQitemZ200299054419QQcmdZViewItemQQptZAU_Components?hash=item2ea2c10553&_trksid=p3911.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|240%3A1318|301%3A0|293%3A1|294%3A50]Here is a link to the brick I got.[/URL]Re: Viewsonic VA800 with rolling lines

Re: Viewsonic VA800 with rolling lines

Here is a pic of the external power supply. It is brand new from ebay. My wife picked up the monitor from a garage sale without the power supply so I had to get one. The prior owner described the same problem but I actually tried to fix it before ordering the new power supply so didn't see for myself.

I also have a picture of the what the screen looks like. It is hard to see in the photo though. You can best see the lines by the "My Yahoo" bar near the top.

I also have a photo of the opened monitor....

Re: Viewsonic VA800 with rolling lines

I got the caps from Radio Shack. I know you guys don't like them, but I was impatient. I initially used 4.7 uf since that is all I could find but then swithced them out for 1 uf 35 volt. Didn't make any difference.

This monitor uses an external power supply which I just bought on ebay.

Re: Viewsonic VA800 with rolling lines

I never say any bulging caps. The caps I replaced are the metal ones. I'll try to attach a photo of the board....

I acquired a Viewsonic VA800 LCD monitor that works but has rolling horizontal lines. Looks like interference on a television. It is not as bad at 75 hertz and is most prominent at 60 hertz. Weird thing is that I don't get the rolling lines when the computer is off and I get a "no signal" display. Also, display is fine during "power on self test" on one computer but not on another computer. Once Windows is on screen, I get the rolling lines.

It is not my video card or computer since other monitors work. I checked that the cables are seated tightly.
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