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| LCIII and SCSI. |
Posted by: facattack on 2007-09-29 14:29:59
It's a LC III Macintosh (the computer). I finally had the chance to boot her up today because I got the VGA-DB15 pin adapter for my monitor. Fire her up, she loads OS 7.1. Fine. Turned her off, plugged in the SCSI zip drive. Turn her on... nothing.
Another thing is she's got an ethernet jack but I don't know how to set it up so Verizon DSL would be usable on it. I found the Network Settings, switched it from AppleTalk to EthernetTalk. No zones detected.
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Posted by: Flash! on 2007-09-29 17:18:33
There'a a termination switch on your ZIP drive - try flickimg it the other direction to what it is now....
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Posted by: facattack on 2007-09-29 17:55:24
I don't see any switches other than the eject button on the front. On the back there's a male SCSI port and a female one.
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Posted by: wally on 2007-09-29 18:44:41
Zip100 identification tips: These are two non-exhaustive examples; there are others I do not own, such as the auto sensing zip plus model which is identifiable by the front bezel label under the eject button-
Zip 100 SCSI
Model number is on the bottom label and is Z100S2
No label above power connector in recess
Both rear DB25s are female
Primary one left side viewed from rear is labeled zip
Daisy chain output connector labeled with diamond-dash SCSI symbol
Two slide switches between DB25s for terminator and SCSI ID setting
Zip 100 Parallel
Model number is above the power connector in the recess and is Z100P2
Label on bottom shows connections but no model number
Left rear DB25 is male, right rear DB25 is female (viewed from the rear)
Left side male primary connector is labeled zip
Right side female daisy chain to printer labeled with printer symbol
No other configuration switches anywhere
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Posted by: Franklinstein on 2007-09-29 18:56:20
Haha... it's not funny, but it's happened to other people before (including myself). Definitely check the Zip drive to make sure it's not the parallel type, or you could blow up your computer's SCSI bus (or the whole thing, depending on how it's all set up). I bought a PowerBook 2400c that someone had killed by using a parallel Zip drive. Luckily these 'Books are so full of fuses that one of them had blown before anything was damaged. I don't know if the LC machines have too many protective features like that.
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Posted by: Quadraman on 2007-09-29 19:19:09
Haha... it's not funny, but it's happened to other people before (including myself). Definitely check the Zip drive to make sure it's not the parallel type, or you could blow up your computer's SCSI bus (or the whole thing, depending on how it's all set up). I bought a PowerBook 2400c that someone had killed by using a parallel Zip drive. Luckily these 'Books are so full of fuses that one of them had blown before anything was damaged. I don't know if the LC machines have too many protective features like that. I was going to suggest the same thing. PC's used external Zips, too. You may have a non-SCSI model.
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Posted by: LCGuy on 2007-09-30 04:29:10
Sometimes you can get away with it. Once i plugged an Adaptec MiniSCSI Plus (Parallel -> SCSI adaptor) into my LCIII, thinking it was a hunky-dory SCSI cable. The Mac wouldn't boot with it connected, but once i disconnected it it ran fine 🙂 I still wouldn't reccommend it though.
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Posted by: facattack on 2007-09-30 05:57:14
I'm getting the disk with a question mark in the middle of it. It won't recognize the hard drive. ... 8-o I only spent ten bucks on the computer... but I hate spending money on mistakes.
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Posted by: wally on 2007-09-30 11:19:05
Perhaps with luck only a 1 amp fuse that supplies +5V to internal and external terminators is blown, causing the internal terminator to drag down the signals towards ground. See if the SCSI DB-25 pin 25 has +5V on it. On the parallel port devices this is grounded, so the fuse if there is one, or the trace, is blown. Apple uses some unconventional small fuses as well as sometimes some circuit breaker polyswitch types so continuity check any component with a "F" designation on it starting with those in the vicinity of the SCSI connector.
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Posted by: tomlee59 on 2007-09-30 19:35:45
I don't see any switches other than the eject button on the front. On the back there's a male SCSI port and a female one. AFAIK, no SCSI Zip drive has two sexes of ports (consistent with the info that Wally gave), so you almost certainly have a parallel port drive. That would explain why you are having difficulty. 🙂
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