It was me collecting different build-standards of the QL. Here's a link to a
web-page
summarizing my collection:
http://mypage.bluewin.ch/QLvsJaguar/QLBuild-Standards_PCB-Issues.html
Issue 2 is not known to me to exist, so please give me more infos. It would
be great
It may not be issue 2 - it is very hard to read the writing on the PCB if not impossible!!
However, looking at your web-pictures, I cannot see anything similar.
This one has had a few changes to it, which does not help - a very early mouse interface is attached, saying Iss 1 Mouse Adapter - a small circuit board on various leads connected to the circuit board by the 8302 and the resistors near the 8049.
It does not work at the moment (no keyboard to try it anyway!!), but when I got it, I noticed the JM ROMs were the wrong way round (JM-0000 on the right of JM-0008). I have swapped these for AH ROMs.
A lot of the capacitors are different from later versions (there are plain bronze in colour) and the row of resistors to the right of AH-0008 socket actually have some wire links in place of the resistors JU2, JU3 and JU4.
The only other obvious changes are that there is a heavy duty wire link with resistors/capactors (not sure which) from pin 10 of the 8302 (on the left hand side) to pin 20 on the right hand side of the 8302 (top right corner) and then across to the large blue capacitor just above the 8049 chip!! Oddly, the black wire which normally trails from under the heat sink and ends up near the keyboard membrane is missing...
You can have the board by all means (as it stands) - please let me have your current postal address to send it to.
if you could make 2 photos of it (top and bottom of the pcb) and send them
to me in
digitised form. If you have no use for the pcb, my home is always a safe
home for QL's (current status is 8 QL's, 2 ICL OPD's, 4 CST Thors, 2
Amigas).
Rich Mellor
RWAP Software
7 Common Road, Kinsley, Pontefract, West Yorkshire, WF9 5JR
TEL: 01977 614299
http://hometown.aol.co.uk/rwapsoftware
