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神经网络昆斯林的新闻组分类2006

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From: [e-mail] (Jeff Hite )
Newsgroups: comp.sys.mac.hardware
Subject: Re: Mac Plus is constantly rebooting!
Message-ID: <1qk7nu$[e-mail]>
Date: 15 Apr 93 17:58:22 GMT
Article-I.D.: pith.1qk7nu$ra8
References: <[e-mail]>
Organization: University of Oregon Network Services
Lines: 25
NNTP-Posting-Host: ludwig.cc.uoregon.edu

In article <[e-mail]> [e-mail] (Russ  
Hodes) writes:
> Tae Shin ([e-mail]) wrote:
> : 
> : Basically, the Mac Pluses are constantly rebooting themselves, as if  
the
> : reboot button were being pushed.  Sometimes the Mac is able to fully  
boot
> : and display the desktop, but it is only a matter of time before it  
reboots
> : again.  At times, the frequency is as high as several times a minute. 
> : 
>    I wonder if your Mac has those little "RESET / INTERUPT" switches
>    installed.  They are plastic devices that push on the switches which
>    are inside the mac.  Or mabey those switches are bad and need
>    replacing.

This problem is usually a low +5 Vdc from the power supply, there is an  
adjustment for this on the supply. If the voltage is still unstable or low  
then the culprit is probably a bad rectifier at CR20.

Jeff Hite
Computing Center
U of Oregon
[e-mail]