WB2/Rejuvator
Hi Ron
I am the Guy who posted the mod. I had major problems with finding a
7474 that would work in my Lucas and after consulting with a bunch of guys
in the local user group, decided to bypass that rather quirky part of the
design. Brad wanted to make the Lucas a single board add on with a minimum
number of wires to the mother board (none in effect) but that meant he had
to regenerate a clock signal on the Lucas that was easily available on the
A1000 board. The design does'nt ensure the clock comes up in Sync or even
very stable, thus the irritating problems with finding a 7474 chip for U9
that would work. You can bypass this altogether by simply gently lifting
pin 7 of PAL U6 out of it's socket and bending it out and soldering a 30
gauge wire to it and running it over to pin 9 of Row P of the molex
connector on the Rejuvenator if you have one or to Pin 9 of that same molex
connector if you are using the original Kickstart daughter board.
I soldered a small gold socket pin to the molex pin on the Reju board
thus allowing easy disconnection if required. Make sure you solder to the
right side of the molex connector or you could find you have permanently
attached your Reju card to your A1000.
This mod really helps,(at least 10 done in this region) and allowed me
to run my Lucas at 20 Mhz, when previously I could only get 14MHZ before.
You may still have to pick a 7474, but once you find one that works you
should be in the clear.
So much Great Amiga Software, so little Time !! John Lemoine via Whap!
75320,143 Edmonton, Alberta, Canada