[Coco] CoCo 1 troubles

Rick Ulland rickulland1 at gmail.com
Wed Dec 23 08:54:13 EST 2020

Re select LED - Did/does it light up when the cable is inserted upside 
down? All of the drives I've had did that, and I also did it a bunch. 
Could simply mean the LED died;-)

Maybe this drive was part of a set? Try DIR 0 through DIR 3 - one of 
them should make the drive step and maybe add an audible clack as the 
head clamps down.


On 12/23/20 7:23 AM, Bruce W. Calkins wrote:
> I have done this dozens of times with no long term damage.  Short term 
> frustration OTOH. . .
> Bruce W.
> On 12/22/20 9:22 PM, Salvador Garcia via Coco wrote:
>>   Update:
>> I had the cable on backwards (ugh). I thought pin 1 on the floppy 
>> drive was towards the top. The notch is towards the bottom and it 
>> turns out that pin 1 is close to the notch.
>> I reversed the cable and tried again. The strange RF interference is 
>> gone, the screen remains steady as the drive is accessed. The drive 
>> select is working because I can see the motor spin; however, the LED 
>> does not light up.
>> Hopefully, I did not damage the unit when I reversed the cable.
>> Salvador

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