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PostPosted: Sun Apr 18, 2004 2:10 PM 
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Joined: Tue Jul 23, 2002 5:56 PM
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As our past president can attest to, the president sometimes gets questions from non-member Mac users. This question intrigued me because I haven't had to do any Mac hardware troubleshooting yet since my Mac is still pretty new (2 years old).

Someone wrote me regarding their iMac DV (400 Mhz) stating that their display is only 5" wide. The first thing I thought was that it was simply a bad display tube. However, the display still shows up as only 5" wide even when an external monitor is attached to the iMac.

I suggested resetting the PRAM since I've heard about that a lot. However, will a PRAM reset or hitting the hardware reset button make any difference or is it likely that the iMac is just dead.

The person has already bought a new G4 so he's only looking to get the iMac fixed up so he can donate it to someone or maybe sell it for a few dollars.

If you have suggestions, please let me know.


Bob C


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PostPosted: Wed Apr 21, 2004 8:11 PM 
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Joined: Tue Jul 23, 2002 5:49 PM
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Location: Indianapolis
Bob:

This seems like too easy an answer, but did he check the "geometry" settings in the displays preference pane?

I have also read that video settings are no longer stored in PRAM under OS X.

Andy


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PostPosted: Thu Apr 22, 2004 12:10 AM 
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Andy,

From the initial E-mail, it definitely sounded like the screen started shrinking over a period of time rather than ending up at 5" wide in one day.

I can't be sure which OS he's running, unfortunately. I sometimes mistakenly assume that a person is running OS X unless I know differently. Especially with an older iMac, that may not be a valid assumption.


Bob C


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PostPosted: Sun Apr 25, 2004 5:37 PM 
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Any more news on this, Bob? Did zapping PRAM/NVRAM help?

I found a link on iMac video issues. Although it does not have anything that specifically relates to our problem, it does have some useful info:

http://www.macopz.com/columns/imacrepair/

Maybe Mark Kippert could chime in on this, considering his repair guru status...


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PostPosted: Sun Apr 25, 2004 10:47 PM 
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Andy,

I haven't heard anything. I fear that your link may be correct. Unfortunately, since an external monitor doesn't work, my guess is that it's a hardware failure.


Bob C


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