Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-pcd!hplsla!tomb From: tomb@hplsla.HP.COM (Tom Bruhns) Newsgroups: comp.sys.amiga.hardware Subject: Re: Why ground pals in A1000 ? Message-ID: <11260007@hplsla.HP.COM> Date: 1 May 91 17:47:00 GMT References: Organization: HP Lake Stevens, WA Lines: 25 root@apal.hanse.de (Andreas Mueller) writes: >I often read about 'grounding Pals in the A1000'. > >How, why and where (which A1000 rev.) is this done ? etc. Personal to Andreas: (apologies to net) I tried to reply to your email query, but the mail bounced. I would be surprised if European A-1000's don't have a daughterboard and PALs; it's inside the case, and plugs into the main (mother) board. It is towards the front of the computer, at the center. The PALs have nothing to do with the machine being an NTSC or a PAL video format machine. They do some low level logic stuff more efficiently than standard TTL chips. They are typically used for address decoding, and that can be where the "faster/cleaner" helps out. Local dealers that do repairs should have at least heard about the PAL problems, and most around here have or can get the faster/cleaner PALs and optionally install them for you. I have not had to do that upgrade, but have heard that it does indeed solve problems in many cases for people who have tried to expand their A-1000's. If you have the appropriate experience and access to tools, programming your own PALs should be fairly easy; you would 'clone' the existing ones.