Mac Classic - will it ever run again!!

[rubber_jonnie]

Theres a book, The Dead Mac Scrolls, which covers troubleshooting and repairs for the early 68k Macs.

It may well help out.

My I just found these, they are excellent, thank you!

[mrbombermillzy]

No probs.



I hope it helps!

[rubber_jonnie]

No probs.



I hope it helps!

Me too, I'm determined to make it bloody work again, as I blame myself for it dying, should have done the caps sooner. Similar problems with my Amstrad ALT-386, capacitor related, and that took some fixing, that goo is bad juju.

[mrbombermillzy]

Me too, I'm determined to make it bloody work again, as I blame myself for it dying, should have done the caps sooner. Similar problems with my Amstrad ALT-386, capacitor related, and that took some fixing, that goo is bad juju.

Havent had too much trouble with old caps so far.

Im more of a 'battery leaked and ruined the mainboard' kind of guy.

Got an old Archimedes A5000 and a 486 mobo that have succumbed to the dreaded ooze. That stuff creeps UP legs! Its relentless.

[rubber_jonnie]

Me too, I'm determined to make it bloody work again, as I blame myself for it dying, should have done the caps sooner. Similar problems with my Amstrad ALT-386, capacitor related, and that took some fixing, that goo is bad juju.

Havent had too much trouble with old caps so far.

Im more of a 'battery leaked and ruined the mainboard' kind of guy.

Got an old Archimedes A5000 and a 486 mobo that have succumbed to the dreaded ooze. That stuff creeps UP legs! Its relentless.

I recapped my A1200 recently, that was a close call, caps were starting to ooze. The Macs seem to be the worst for battery explosions, I heard it called 'Maxell Bomb' by somebody. The worst damage was the Amstrad though, a single cap caused hours of repairs and bodge wiring to revive it. It's those little aluminium SMD dustbins that seem to be the worst for some reason. I replace with tantalum bricks where possible, no future danger of leakage!!

[stephen_usher]

[I recapped my A1200 recently, that was a close call, caps were starting to ooze. The Macs seem to be the worst for battery explosions, I heard it called 'Maxell Bomb' by somebody. The worst damage was the Amstrad though, a single cap caused hours of repairs and bodge wiring to revive it. It's those little aluminium SMD dustbins that seem to be the worst for some reason. I replace with tantalum bricks where possible, no future danger of leakage!!

Indeed... only *FIRE* from tantalums.

Actually, polythene caps are probably the least dangerous long term now.

[rubber_jonnie]

[I recapped my A1200 recently, that was a close call, caps were starting to ooze. The Macs seem to be the worst for battery explosions, I heard it called 'Maxell Bomb' by somebody. The worst damage was the Amstrad though, a single cap caused hours of repairs and bodge wiring to revive it. It's those little aluminium SMD dustbins that seem to be the worst for some reason. I replace with tantalum bricks where possible, no future danger of leakage!!

Indeed... only *FIRE* from tantalums.

Actually, polythene caps are probably the least dangerous long term now.

Not had one catch fire yet

[rubber_jonnie]

Hmm, Dead Mac Scrolls is an interesting read, and it seems nearly all of the problems with early Macs that I've looked at so far (I'm only up to page 59 of 489) are analog board related.

And I've found a problem description that seems to match mine. The fix is supposedly replacing the 74LS38N on the Analog Board, so I figure what's to lose?

Parts are on order, we'll see what's what.

[Tomswork]

The analog boards are a pain even the yoke connector melts


Tom

[rubber_jonnie]

The analog boards are a pain even the yoke connector melts


Tom

The yoke connector melts!!!

That's mad!