If problems occur.

I've spent considerable time debugging the board to make it work. Here are some of the problems I have run into and perhaps they might help.
Please remember that the whole purpose of making this baord PD was so that the Amiga community at large can help those with problems,  but more importantly, with a full disclosure of the design we can benifit from all those hackers out there who will make improvements to the board. Already we have boards that work at 20 Meg. and 25 isn't far off. I will post on USENET and BIX all the traffic good and bad that I feel should be generally known. I will also post the bugs, software that doesn't work, peripherals which don't work, etc. 
If when you insert the Kickstart disk  it runs for a couple of seconds then pops the kickstart screen back at you, and you are sure that this is a valid kickstart disk, try changing U9 from an ALS part to a LS part, or a 7474 part. this should solve this timing problem. This is a generic fix for all problems, changing the type of 74 for U9 will make some peripherals which don't work, work like a charm. It is a quick test so try it if you getting strange behaviour.
If Kickstart is taken in OK but it gets to the point that it is about to pop the workbench screen then goes bonkers try changing U9 again. If this doesn't help you might have a gounding problem.

Gounding problems.

We have found that the Amiga 1000 has a very noisy ground plane. Some Amiga's will only take one peripheral, two and they cough.
Dominic at COMSPEC came up with a grounding mod that I now do as a matter of course to all Amiga's I open up. The problem he solved is that there is a slight voltage differential between the Amiga daughter board and the expansion connector ground planes. To remedy this connect a piece of wire between the four pals ground pins on the daughter board and the ground which surrounds the expansion connector. These pals are J6, K6, L6, and N6 at the far end of the daughter board. The ground pin is pin 10 which is the pin at the upper left of the pal as you look at it with the Amiga facing you. Bus these four ground pins together then run a wire to the gound which surrounds expansion connector (Use an ohmmeter to be sure). Scrape away a small section of the solder mask which covers the ground and solder the pal ground wire there. This can make your Amiga much more robust with 3 and 4 peripherals attached. There is also a place on the LUCAS board to attach a secondary ground wire. If you look at the board there is a dedication which says "Special Thanks to Dr. Brain Gaines and ANAKIN". Look right on top of the N in ANAKIN and you will see a small GND marked. Solder a wire through this hole on the bottom of the baord (scrap solder mask first) and attach it to the same place as the pal ground wire.
It is always a good idea to if your having problems to check the seating of all the chips, especially the seating of the 64 pin socket which mates the LUCAS Board to the AMIGA 68000 socket. It is also a good idea to check that none of the disrete chips or pals have a pin bent underneath them instead of into the socket.
If you still are having problems E-Mail me on BIX or USENET (see Article) and I'll try to help. 



