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working around blown SCSI fuse
I've got a Prodrive 100 with a blown micro fuse.
(Diagnosed by: drive spins up if data cable not connected but doesn't spin up
if data cable connected)
I have a Syquest drive that supplies termination power, but turning it on is a
nuisance because w/o a cartridge in it, it hangs ProDOS 8.
As I see it, I have a number of bad options to fix this:
1) buy another SCSI device I can leave on - not worth the money.
(Actually, I have been thinking of getting a tape drive, so that might be the
ticket.)
2) buy a RAMFast which both will supply term power and will probably tolerate a
Syquest with no card - some expense and draws too much power
3) solder a wire over the fuse - not recommended by Quantum
4) Patch P8 to not poll the Syquest - an excellent option IMHO, but I don't
know where to look and if it is even possible. Is the problem in P8 or the DMA
SCSI ROM?
5) Always turn the Syquest on and leave a cart in - I hate waiting for it to
spin up and rarely use the Syquest.
Does anyone have a clue on #4, or an opinion on #2 and #3?
Is bypassing the fuse so bad/dangerous?
Weird thing, the fuse is blown, but that only makes a diff depending on the
configuration.
--
--Jay, jay.krell@cornell.edu