A4000 and SCSI issues

[Ibi Sum]

Yes, exactly. 

Intermittent operation is a sign that either termination isn’t set up properly, or you’ve got a weak SCSI cable in the chain.

FWIW, I have multiple A-samplers (A3K/A5K) on my SCSI chain as well as a RASCSI and a laptop (I’m doing Disky development again) and they work very smoothly.  But it did require that I get high quality SCSI cables and check the termination and ID settings multiple times.

;
--
seclorum 

> On 03.02.2022, at 22:06, Tony Scharf <tony.scharf at outlook.com> wrote:
> 
> 
> Check that your terminators are actually terminating.  I've had a terminator just stop working out of nowhere and it took forever to figure out.  
> 
> SCSI is a big reason I haven't embraced classic samplers and computers.  I had simple setups that should work and didn't and more than a few that should not have worked but did.  
> 
> Tony
> From: music-bar <music-bar-bounces at lists.music-bar.org> on behalf of Matt Seil <xeno6696 at gmail.com>
> Sent: Thursday, February 3, 2022 1:21:54 PM
> To: Music-bar <music-bar at lists.music-bar.org>
> Subject: A4000 and SCSI issues
>  
> Oof... this has been hell.
> 
> 
> I have an old SCSI For Samplers setup.  The version of this that comes 
> closest to working is:
> 
> DB-9:
> HD = 0
> CDROM = 1
> 
> Spyrus CF device
> MCDISK = 7
> 
> A4000 = 6 (factory default)
> 
> (I have yet to see if this works with my K2661 added into the mix.)
> 
> The symptom that was infuriating was this:  The very first time I loaded 
> samples from CDROM (when the Spyrus was on ID#2) it worked great.  After 
> that, any time I tried to access the disk menu or record menu--at 
> all--the A4k would hang.  Until I turned off the other SCSI drives.  I 
> did a factory reset:  Behavior stayed the same.
> 
> At the present moment, I can navigate and mount/unmount disks alright, 
> but now when I try to load programs from CDROM, it either hangs, or 
> complains about not reading the disk--which it can at least do well 
> enough to load program names without artifacts.
> 
> I have also tried:  Disconnecting the spyrus entirely and terminating 
> the DB-9.  There are two SCSI ports on this, and the use of either 
> results in the hanging navigation behavior.  Before I try an exhaustive 
> SCSI walk... does anyone have troubleshooting advice?
> 
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