[Coco] Jumper settings needed

Tony tonym at compusource.net
Thu Oct 2 22:27:03 EDT 2008


----- Original Message ----- 
From: "LinuxRules" <Linux-Rules at austin.rr.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, October 02, 2008 9:12 PM
Subject: Re: [Coco] Jumper settings needed


> Tony wrote:
>>
>>
>> I have  a Revision L and Revision U M4853 in front of me.
>> I KNOW I used my Rev U in a PC, as it still has a diskette inside 
>> labelled "MS-DOS."
>>
>> On the jumper set near the FDC connector, DS1 is jumpered, and HM is 
>> jumpered.
>> Going rear (nearest connector) to front (towards front of drive) using 
>> binary:
>> 01000010  1 being jumpered.
>>
>> Mine also happens to have the term jumpers inserted, whic is about 1 
>> inch away from edge,
>> about 2 inches in from the FDC connector.
>>
>> Rev U and Rev L are VASTLY different on other jumpers, ie, not the 
>> jumper header where DS is
>> selected.
>>
>> Tony
>>
> I appreciate all the help Tony!
> 
> Checking my drive, it's a Rev C. Early one, I guess.
> It has 7 positions, not 8, for the option block near the connector.
> The good news is that there is one labeled HM, so I set the jumpers
> to HM - was DS - and DS1 - where it already was.
> The bad news is that produced no change. Arrggg.!
> Well, actually, it did make one change - the head started pounding
> up & down a dozen or so times as the PC tried to identify the
> drive. But, no change in the "Not Ready" problem.
> 

See if you can find a jumper labelled "2S"
May not be in the bank with DS0 - might be elsewhere on that topboard.
If you find it, reverse it's position and try again.

Tony



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