27 Dec
1998
27 Dec
'98
3:45 p.m.
On Mon, 28 Dec 1998, Jason Willgruber wrote:
Thanks!
Now, this may seem like a dumb question, but, when I select a drive, or a
factor default, I turn the switch on, right?
--
Yes. The original setting device on the 506 was a DIP with frangible
foil jumpers that bridged opposite pins. In that case, you severed the
ones that you wanted to open. Sounds as though you have a DIP switch so
atart with all OFF and turn on those that correspond to 'D' and 'H' and
the appropriate 'DSn'. Your mention of a WD-GEN controller says PC, so
if using a cable with a twist it should be DS2. Make sure that it is a
HD cable - the twist is fewer leads and in a different location on the
ribbon cable. Also, don't overlook the 20 conductor cable also.
- don
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
donm(a)cts.com
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Don Maslin - Keeper of the Dina-SIG CP/M System Disk Archives
Chairman, Dina-SIG of the San Diego Computer Society
Clinging tenaciously to the trailing edge of technology.
Sysop - Elephant's Graveyard (CP/M) Z-Node 9 - 619-454-8412
*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*
see old system support at http://www.psyber.com/~tcj
visit the "Unofficial" CP/M Web site at http://devili.iki.fi/cpm
with Mirror at http://www.mathcs.emory.edu/~cfs/cpm
ST-506
Option Shunt Block
____ ____
| |__| |
1 | R | 16
2 | D | 15
3 | NC | 14
4 | H | 13
5 | DS4 | 12
6 | DS3 | 11
7 | DS2 | 10
8 | DS1 | 9
|__________|
Legend:
R Radial Operation
*D Defeat Recalibration
*H Half Step Option
DSn Drive Select
* Factory selection
Opening the Half Step option should improve access time.
The proper interleave setting is a function of the controller rather than
the HD, so 3 should be OK.
- don