A4000 and SCSI issues

[Matt Seil]

The cables were the culprit.  I mean, they only spent 5yrs in a garage 
that regularly hit 38C in the summer.

I had a really great day yesterday, and then, I read your email here 
after spending another hour and a half troubleshooting why the CDROM 
would no longer recognize...

After I had figured everything was good and tested, I pushed the DB-9 
back far enough that it put stress on the cable.  All 3 times I ran into 
"this shit was working fine!" the problems began once I moved the cables.

I'm going to buy some more cables, do you have a brand you'd recommend?  
I'm assuming aliexpress is not to be trusted ROFL


On 2/3/2022 11:19 PM, Ibi Sum wrote:
> 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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