Re: Apple IIe Revision B Upgrade

[rgshacke@wsuhub.uc.twsu.edu (RANDY)]

In article <1soah7$juj@meaddata.meaddata.com>, johnt@meaddata.com (John Townsend) writes:
> I bought an old Apple IIe system last weekend -- so old that it had the original
> Apple II Plus-style thick plastic case and white keycaps, but it was otherwise
> in great condition.  The first thing I noticed was that it had a revision A
> motherboard (the serial number ended with "-A"), but it had been enhanced and
> had an Extended 80-Column card.  The odd thing was that it ran double hi-res
> graphics just fine, but I took it in to the dealer for the upgrade anyway.  The
> dealer put in a new motherboard, fresh out of the box from Apple, but it too has
> a serial number ending with "-A"!  What's going on here?  Is Apple recycling all
> those motherboards that they took back for the upgrade plan?

I don't know about the board used in the platinum //e but there are three
different part numbers for the pre-platinum machines: 820-0064-A, 820-0064-B,
and 820-0087-A. The "early revision A" board cannot do DHR graphics and a
dealer who knows what he is doing won't install an enhancement kit on it. It's
not supposed to even work if an extended 80 column card is present with the
jumper which enables DHR installed. My August '83 vintage //e came with a rev
B logic board so it could be enhanced and do DHR. The late revision A board
comes with the enhancement. My old //e runs a late rev A board and the rev B
board it came with is in reserve now.

It sounds like you had a late rev A board and the dealer replaced it with an
identical board to me.

Randy
rgshacke@wsuhub.uc.twsu.edu