Monitor distortions

Lateralus · Post by **Lateralus** » January 7th, 2007, 23:22

I have a nice new (second-hand) Mitsubishi Diamond Plus 93SB which I got for £30. Yay for 19" and 1600x1200. However, it has started getting these horizontal lines flickering across it sometimes and the picture distorts a bit. No idea what's causing it, as it doesn't seem to be linked to vibrations or interference from other electrical things and all the connections appear to be secure. It starts and stops at random, but can carry on for quite a while. Any ideas my hardware bitches?

Post by **Dr. kitteny berk** » January 7th, 2007, 23:26

speakers?

cable in right?

refresh not too high/low?

Hehulk · Post by **Hehulk** » January 7th, 2007, 23:29

Rabble, ninja mod deleting people, rabble rabble

Post by **Dr. kitteny berk** » January 7th, 2007, 23:30

sorry, misclicked, meant to edit.

Post by **ProfHawking** » January 7th, 2007, 23:31

first thing i'd check is if its still under warranty. I got a brand new screen for free from LG a while back.
But as for the lines, are they really really fine? Some CRTs have small wires running horizontally.
As for flickering, is it a mobile phone nearby? They used to make mine go a little bit mental.
Rack up another plus for TFTs...

Stoat · Post by **Stoat** » January 8th, 2007, 0:31

ProfHawking wrote:Some CRTs have small wires running horizontally.

My Mitsubishi Diamond Plus 91 has these. They don't distort the picture though.
Tried degaussing and all that?
Mine has some funky options in the third option of its menu... is there a factory reset you can do or owt?
Does anything change if you wiggle the cable?

Woo Elephant Yeah · Post by **Woo Elephant Yeah** » January 8th, 2007, 8:30

Hopefully changing the screen refresh rate will fix this, otherwise it can be a sign your monitor is on it's last legs (if ti had any that is)

Post by **Dog Pants** » January 8th, 2007, 10:36

Have you tried wiping all the sticky residue off the screen? That's what I always do when I'm struggling to see what's on there.

Lateralus · Post by **Lateralus** » January 8th, 2007, 16:22

Not speakers as it happens when they're not on. Cables are in fine. Refresh rate was 60, now changed to 70 and it isn't doing it now, but I'll wait to see before passing verdict on that being the solution.

In terms of warranty, I don't think it'll still be covered because I believe it to be 3 years old. It definitely isn't mobile interference, although the effect is fairly similar, only less regular.

Never heard of degaussing before, but it has now been done. Tried that before changing the refresh rate and it was still doing it, so it wasn't that.

I'll leave it at the new refresh rate for a while and see if it carries on. Thanks for the suggestions all.

Mr Pants - I would wipe off the residue but I'm trying to build it up in layers until I have enough 19" slabs to pave my yard with.

Post by **fabyak** » January 8th, 2007, 16:29

The speakers don't necessarily need to be on for them to affect the monitor. If the cables have crappy electrical shielding they can play hell with monitors. Also check any electrical applicances on the other side of the wall where your monitor is as they can do this too

Post by **Dog Pants** » January 8th, 2007, 16:59

fabyak wrote:Also check any electrical applicances on the other side of the wall where your monitor is as they can do this too

Pfffft. QFT - I've encountered this at work, was very funny at the time.

You probably had to be there though.

cashy · Post by **cashy** » January 8th, 2007, 17:05

fabyak wrote:The speakers don't necessarily need to be on for them to affect the monitor. If the cables have crappy electrical shielding they can play hell with monitors. Also check any electrical applicances on the other side of the wall where your monitor is as they can do this too

Flux baby. An air conditioning unit in the room above me has even triggered this off.