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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: orb85750 on August 23, 2011, 12:50:14 AM

Title: One Zorro II slot gone bad in A2000 machine?
Post by: orb85750 on August 23, 2011, 12:50:14 AM
Is it bizarre for one (the first one) Zorro II slot in an A2000 to go bad?  And is there any way to fix it?  I received an A2000 with an Oktagon 2008 hard drive card plugged into the first slot.  It simply would not boot and got stuck on a gray screen.  All I did was move it to slot #2 and now seems to work fine.
Title: Re: One Zorro II slot gone bad in A2000 machine?
Post by: tone007 on August 23, 2011, 12:55:56 AM
Dirty/loose connections are pretty common in the older systems.  I'd look there first.
Title: Re: One Zorro II slot gone bad in A2000 machine?
Post by: save2600 on August 23, 2011, 03:35:33 AM
Quote from: tone007;655785
Dirty/loose connections are pretty common in the older systems.  I'd look there first.


Yeah, I've seen many an A2000 with broken #1 Zorro slots from people mishandling cards. Broken as in they're cracked, causing a bad connection. Could have a bad solder joint there too since it's the most popular slot.
Title: Re: One Zorro II slot gone bad in A2000 machine?
Post by: spirantho on August 23, 2011, 07:19:58 AM
If that doesn't do it there's a logic IC with a gate for each board. A 74ls32 I believe..... might want to check that.
Title: Re: One Zorro II slot gone bad in A2000 machine?
Post by: psodas on August 23, 2011, 03:26:37 PM
Also as last keep in mind the Buster 5721. I your amiga has the 5719 version you must change it.
Title: Re: One Zorro II slot gone bad in A2000 machine?
Post by: mechy on August 23, 2011, 05:49:13 PM
Quote from: orb85750;655784
Is it bizarre for one (the first one) Zorro II slot in an A2000 to go bad?  And is there any way to fix it?  I received an A2000 with an Oktagon 2008 hard drive card plugged into the first slot.  It simply would not boot and got stuck on a gray screen.  All I did was move it to slot #2 and now seems to work fine.

i'm with spirantho on the 74ls thats possibly bad.

mech