Picture 6, 9 is a SPEM v2 memory expansion - poor design with very slow memory. Picture 17 is SPEM V1 memory expansion - sort of a prototype - the socket is inserted between the 68008 and its socket. Inadequate decoupling caps. Someone cloned this board and made 100s of copies, not knowing it was so poor.
20 looks a lot like a serial to speech box I used to own... Dave (recovering from a nasty NASTY chest infection and weeks in bed!) On Wed, Apr 6, 2011 at 3:34 AM, Bob Spelten <b...@chello.nl> wrote: > Op Tue, 05 Apr 2011 21:50:39 +0300 schreef Adrian Graham > <wit...@binarydinosaurs.co.uk>: > > > I might be right in guessing that 1 and 21 go together - that's the same >> backplane isn't it, meaning the case is a QXT640... >> >> No it's not the same. > 1 doesn't have any PSU connector like the one in 21. > That is a Qplane bus with Qubide and Super Gold Card in a mini-tower. > There must be an Aurora hiding behind them as a QL board would be long > enough to be seen. > > 5, 8 & 17 look like internal RAM expansion, connected through the IC22 > socket. > The big chip marked CLA2310 is this ZX8301 graphics chip. > > Bob > > -- > The BSJR QL software site at: http://members.chello.nl/b.spelten/ql/ > > _______________________________________________ > QL-Users Mailing List > http://www.q-v-d.demon.co.uk/smsqe.htm > _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
