[sebhc] H89 BOOT SUCCESS

[Barry Watzman]

Yes, but you would need an oscilloscope and an analog alignment disk (almost
impossible to come by these days), or a digital alignment disk and a
software program to utilize it and analyze the result (and while a digital
disk will tell what the story is, it won't allow you to fix it, at least not
easily).


-----Original Message-----
From: sebhc-bounces at sebhc.org [mailto:sebhc-bounces at sebhc.org] On Behalf Of
Carroll Waddell
Sent: Wednesday, May 16, 2007 18:05 PM
To: sebhc at sebhc.org
Subject: Re: [sebhc] H89 BOOT SUCCESS

Barry Watzman wrote:

>The problem may be marginal alignment.  Also, as noted earlier, some drives
>don't like being in an H89 right next to the deflection yoke (that's why
the
>mu-metal shield was part of the design).
>
>
>-----Original Message-----
>From: sebhc-bounces at sebhc.org [mailto:sebhc-bounces at sebhc.org] On Behalf Of
>Carroll Waddell
>Sent: Wednesday, May 16, 2007 15:59 PM
>To: sebhc at sebhc.org
>Subject: [sebhc] H89 BOOT SUCCESS
>
>Thanks to everyone in the group that gave me tips on my H89 boot 
>problem. I just got it to boot successfully. The problem turned out to 
>be 2, not one, but 2 bad diskette drives.
>I used them on the H8 and they worked, so I moved them to the H89 and it 
>wouldn't boot. I finally put them back on the H8, and they wouldn't boot 
>there either.
>When I tried other diskette drives I had, SWEET BOOT SUCCESS!  FOR THE 
>FIRST TIME SINCE I BOUGHT THIS MACHINE!
>
>Carroll
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Is there any way I can check the head alignment? I used to do head 
alignment on large mainframe disk drives.
Carroll
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