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Getting a Jaz drive to work
Posted by: pcamen on 2019-05-13 16:28:49
I've got a 2GB Jaz drive and a bunch of 1GB cartriges.  I've been using this Powerbook 540c I've got it connected to for lots of things, and have installed the Iomega extension and have used a Zip drive without issue.  But the Jaz drive doesn't show up at all. 

If I use Drive Setup to scan the SCSI bus it shows the SCSI id but says "unsupported device". 

The Jaz drive is connected directly to an HDI connector through a cable.  It has the compact form of SCSI (the 68 pin one?) and I have a converter cable from that to DB 25 and the HDI connecter has DB 25 at the end.  Since I am seeing it in Drive Setup, I don't think the cable is the issue.

I've tried it with and without the termination switch set on the Jaz which doesn't seem to make a difference.

I've tried it with a cartridge in at boot time, and with a cartridge inserted after boot.  Nada.

Anyone have any ideas?

Posted by: K Trueno on 2019-05-13 20:51:16
Do you know if it works on other machines?  

Does the amber light turn off after you insert a cartridge?  I had one in storage for a while and it failed when I tried to use it, like it just died.  Amber light stayed on and it didn’t seem to do the usual head seek which was what it did before.  

Posted by: Trash80toHP_Mini on 2019-05-14 06:48:11
Send a couple of cartridges to someone who has a working drive to have them formatted? That will remove one important variable in troubleshooting the drive. Good bug hunting.

edit: Send your adapters along with the drive as well. Got pics of your SCIS2 connector adapter? Those would be the other variables I can think of offhand.

Posted by: dochilli on 2019-05-17 00:44:36
Iomega driver 4.2 or 4.3?

Zips often use the 4.2.

My JAZ did not work with the 4.2, but with the 4.3

Posted by: ArmorAlley on 2019-05-17 02:43:54
I thionk the way to go is to modify Drive Setip with ResEdit but I don't know what the volume would be resgistered as.

Have you tried Lido, SilverLining, HDT Toolkit or even a later version of the Iomega Toolkit?

The Jaz 2GB came out reasonably late (1997?) so it my only be supported by the corresponding Iomega driver.

Posted by: pcamen on 2019-05-22 16:01:48
Okay, discovered my Umax tower has a 1GB Jaz drive in it.  The cartridges load fine.  That system is running IomegaWare 1.1.3. I'm going to try just copying the extension and control panel to the other Mac I was testing it with, and try the 2GB Jaz drive on this Umax system. 

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