Re: Unknown board for a Mac Plus?

2020-09-08 Thread 'Glen Allvord' via Vintage Macs
I would carefully check the board, top and bottom, for any telltale markings such as Novy, ImagePro, MicroMac, Dove, Radius or the others offering CPU accelerators for the Plus. The right side thingy is likely some kind of expansion slot as Jeff mentioned. The photo reminds me of an

Re: Options

2020-09-08 Thread Chris Hanson
On Sep 8, 2020, at 4:52 AM, Eric Mynes wrote: > My questions come down to, should I replace the caps? On one or both? On both if the traces aren't destroyed. Working Mac Classics are actually pretty rare because of the propensity of the PRAM battery used in them to leak and destroy the

Re: Unknown board for a Mac Plus?

2020-09-08 Thread Antonio Rodríguez
I first thought about that, but there are clearly only two rows of pins, and, as you say, the SE slot has three of them. If you look more closely, in the area above the 68030 and 68882 with the four DIP chips (two 74646, and two unknown ones, maybe PALs), you can see the legs of a large DIP-64

Re: Unknown board for a Mac Plus?

2020-09-08 Thread Dylan McDermond
> On Sep 8, 2020, at 10:17 AM, 'Jeff Walther' via Vintage Macs > wrote: > > Looks like a connector for the SE expansion slot. 96 pins (assuming there > are three rows of them) is a clue. That’s what I thought at first but I could only see two rows of pins. However my eyes aren’t what they

RE: Unknown board for a Mac Plus?

2020-09-08 Thread 'Jeff Walther' via Vintage Macs
> From: Dylan McDermond > Date: Sep 07 08:53PM -0700 > It?s a 68030 processor upgrade (with 68882 coprocessor). A very nice > upgrade and should bring it close to an SE-30 in performance. > > I?m not quite sure what the double-row header on the right side is for. Looks like a connector for

Options

2020-09-08 Thread Eric Mynes
I was looking in my garage the other day. I stumbled across a Mac Classic and a Mac Classic II. When powered on, the Classic does nothing. The Classic II tries to spin up the hard drive. I haven't opened either of these ever. I assume that the caps are bad on the boards. That's not a huge