[Coco] Disk Problems

[K. Pruitt]

Good point, John.   The contacts definitely got quite a bit brighter after 
the eraser treatment.

----- Original Message ----- 
From: "John Odom" <forgerii at yahoo.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, February 09, 2012 6:17 PM
Subject: Re: [Coco] Disk Problems


It can be dirt other than oxidation.

John L. Odom
Chemist/Microscopist


________________________________
 From: K. Pruitt <pruittk at adelphia.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Thursday, February 9, 2012 9:08 PM
Subject: Re: [Coco] Disk Problems

That's exactly why I thought it was the rom chip as well. Turns out it was 
oxidized
contacts. Why it worked okay under OS9 but not under RSDOS is a mystery to
me. I also didn't know that gold contacts could oxidize, but apparently
they can to some degree.

----- Original Message ----- From: "Bruce W. Calkins" 
<brucewcalkins at charter.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, February 09, 2012 5:59 PM
Subject: Re: [Coco] Disk Problems


> I do know that OS-9 does not use any ROM once you get past the DOS 
> command. This has me thinking you may have a problem with your Tandy ROM 
> chip. Try reseating it making sure all pins are lined up correctly.
>
> Bruce W.
>
> ====================
>
> ----- Original Message ----- From: "K. Pruitt"
>
>> I'm having a disk problem and figured I'd ask if anybody here has any 
>> idea on what may be going on. Under OS9 Level II I am having no disk 
>> problems at all. I can read and write without problem. Under RSDOS I can 
>> read the disk with no problem but cannot write to the disk. If I try and 
>> save to disk it appears to save, but the file is not actually present on 
>> the disk. If I turn verify on it errors out instead of pretending to 
>> write to disk. DSKINI always results in an I/O error. This problem occurs 
>> on both floppy drives in my system.
>>
>> My disk controller is a disto super controller 2 with a tandy rom chip in 
>> it. Does OS9 utilize that rom chip at all?   I double checked the inside 
>> of the pack and everything is plugged in correctly. I'm the original 
>> owner of all the equipment involved. It did work the last time I used 
>> it... which was like 20 years ago.
>
>
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