[Coco] HDB-DOS error - HARD DRIVE NOT FOUND

[Jim Hickle]

--- On Tue, 1/3/12, gene heskett <gheskett at wdtv.com> wrote:

From: gene heskett <gheskett at wdtv.com>
Date: Tuesday, January 3, 2012, 6:47 AM

On Tuesday, January 03, 2012 06:22:27 AM Mark Marlette did opine:


> Jim,

> 

> The contacts in the TC^3 are GOLD plated, which helps a great deal on

> the oxidation, the contacts in the MPI are flashed.

> 

> Oxidation can still occur due to dissimilar metals. As has been

> suggested. The contacts on the TC3 will appear BLACK.

> 

> So as Gene said DO NOT SCRUB. I use a white soft eraser, this will clean

> them right up.


Even that, for gold flashed contacts, could be considered a bit rough on 
the gold.  I prefer painters alcohol on a paper towel to be about as brutal 
as I should get, better yet, the toweling can be abrasive so today I would 
use the corner of a "microfiber towel". 


> Make sure to clean the ground tabs as well. So 44 pins of GOLD on the

> TC^3 or ANY Cloud-9 product that has a card edge, value-quality added .



Thanks, fellows!  Alcohol + Kleenex = well behaved controllers.  Most of the crud was on the side facing the cartridge shell, where I couldn't see it.


> You could try a simple poke. Now this is from memory and you could check

> the manual for the TC^3 and verify but you want to POKE from DECB the

> data register of your interface, IIRC, $FF74 (default) with the bit


Oops, I thought $FF70 was the base address. No wonder HDB-DOS wasn't working.


Thank you again,
jim