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Shaun.P

macrumors 68000
Original poster
Jul 14, 2003
1,601
24
Omicron Persei 8
I have a problem with the screen on my CRT iMac: it's sort of wobbling/shaking ever-so-slightly!

Any ideas to what this could be? Is it serious?



It's sort of like the effect when you have a cellphone call coming through (the way it distorts the screen). I'm beginning to get worried. I bought the Mac out of PC World and got a 5 yr warranty, can I still get it fixed even if the receipt is lost, i.e. will they have my details on record?

Thanks.
 
Did you get a warranty from PC World, or from AppleCare? PC World should honor any warranty that you buy as long as you didn't do anything to void it. My LaCie CRT is beginning to do this as well...I'm not sure what the cause is.
 
FearFactor47 said:
It's definetely through PC World, because it's 5 years, and AppleCare only is for 3 years.

Oh yeah...duh. Brain fart.
 
do you have a fan anyware close the the monitor. I was having this happen a while ado, and it was the small fan I had sitting around 3ft from the monitor.
 
Try moving the computer to a different position in the room/house. Shaking screens can be caused by electrical interference such as conduits inside the wall, even multi plug boxes affixed to the underside of the table.

I have dealt with this effect a number of times. Moving the computer may fix the problem, if it doesn't it means your PAV board is dying.
 
I'll try that later.

Something has happened. My room wasn't cold, but I've put my heater on, and now my room is very hot - the shaking has stopped....I don't know if this has anything to do with it?
 
FearFactor47 said:
I'll try that later.

Something has happened. My room wasn't cold, but I've put my heater on, and now my room is very hot - the shaking has stopped....I don't know if this has anything to do with it?

Yes, try moving it. Preferably to somewhere on a different electrical circiut. It may be something with your homes electricity.
 
FearFactor47 said:
I have a problem with the screen on my CRT iMac: it's sort of wobbling/shaking ever-so-slightly!

Any ideas to what this could be? Is it serious?



It's sort of like the effect when you have a cellphone call coming through (the way it distorts the screen). I'm beginning to get worried. I bought the Mac out of PC World and got a 5 yr warranty, can I still get it fixed even if the receipt is lost, i.e. will they have my details on record?

Thanks.

It's quite common and doesn't normally point to a CRT problem. It's usually caused by having the computer too close to another piece of electrical machinery. Apple's support pages have this to say:

If possible, move your iMac computer to a different location to see if the condition still exists. This eliminates the possibility of environmental interference coming from objects such as metal desks/shelves, fluorescent lights, stand-alone speakers or electrical appliances.
 
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