A few questions on the A1000

[quarkx]

Hi, all, you A1000 GURUS
I finally got my A1000 keyboard in and went to boot a (new to me) A1000 for the first time. (I also had a Genlock 1300 attached). As my luck, getting stuff on e-bay lately, the floppy drive would not read the kickstart disk, I had a few kick start disks and nada. So I do have a spare A1000 mobo and floppy, I took it apart to transplant the floppy.
Now both Mobo's are revision 6, but some modification has be done on the board I have in storage. There is a lot of trace wires done to the daughterboard.
I know that the original owner (past away last year) had WB3.1 working on it. It has no mods dun to the kick roms other than the fact that they are not CBM issue and have "rev.11" under the 2 numbers (252180-01, and 252179-01) looks like Eproms. Is it worth my time to swap these over?
Also on one Mobo the "Angus" is ceramic (gold) on the other the Paula Chip is ceramic. Should I change all 3 chips to Ceramic, or change them all to plastic package? They ar mixed now, but 2 complete sets.

Does anyone refurbish the A1000 floppy drives? one is a NEC 1035 and the other (dead mastshita ju-363-03)

Any thoughts would be much appreciated.

[quarkx]

Thanks Save,
From what little I know about this unit, the former owner has a bunch of hard drives attached. not scsi or Ide, but big drives from old Xerox mainframe units- he automated his whole house and ran security from it with cameras and such at one time. He said he had to have huge sidestepping transformers to go with it?

I am suspecting also a problem with the power supply or a grounding issue, As when I switched it on I got a bit of a zap. Not a static zip, but a good jolt that went all the way up my arm. I had ordered an NOS power supply from Red awhile ago, so now is the perfect time to install it.


Camera phone picture sorry
You can kind of see a few blue wires also, that is closest to the back of the motherboard.

Chip Revisions are the same on both chips.
D 5
A 3
p 4

[quarkx]

The red wire was just a ground, it was connected to the shielding with a screw, and the other end soldered to the corner of the daughterboard.
One blue wire is fom the first pin on the left side of "L" to the first pin of the left side of "N". The second blue is from a spot on the line in beween P and Q to about half way down on the right hand side of N (pin 5 counting from the bottom up. there is a whole wack of other trace wires on the other side of the duaghterboard also. Needless to say, I use this board only for parts, and have never got it to boot.It came to me with a 65010 processor similar to the ones you have pictured on the other thread.

[quarkx]

Here is a scanned image from my scanner, I hope that it is more visible than the phone pictures,
 I carefully removed the daughter board, and saw these were the only traces on the underside.


the only other wires were 2 to the spirit 1000 board.

[quarkx]

save2600 wrote:

Either way, since that board does not allow your computer to boot as-is, why don't you remove ALL of the extraneous wires up top(solder side)? I wouldn't be surprised if it would work then. OR... get yourself one of DJBase's Kickstart adapter and ditch the daughtercard altogether(I'm not positive some leads of his adapter board do not solder to the daughterboard however). I've got one coming, along with a Kickstart 3.1 chip that I may not end up using thanks to Ratte's Twinkick  :-)  

Remember this is my spare board, I am only using it if need be, but I do want to get on of those kickstart adapters (I am just clueless on where to get one- I watch e-bay everyday)If I could, I would even get a Phoenix board LOL, but that is probably as rare and as easy to get as a side car for the A1000.

[quarkx]

Of course PM sent.