Ok, so for now at least, I have decided to call the A5000 done, and I'm reassembling it.
All the repairs are done, and whilst I could easily continue tinkering with the IDE interface, in reality, having the SCSI drive means it isn't entirely necessary. Plus I can easily add another SCSI drive if I need to.
My limited selection of IDE drives seems to be a problem too, since it seems to be sensitive to different drive sizes and geometries.
I'll possibly revisit IDE later, but as far as I can tell, I have caught all the battery damage and everything buzzes out ok, the CMOS/RTC is working fine and the battery replacement is also working well.
The one item I won't be repairing are the traces to the FPA socket, since the FPAs are quite expensive and kind of unnecessary. I have fitted a socket to make it look nice, but only the 4 corner pins are soldered in case I change my mind later.
All the bare traces are now lacquered too.
Looking tidy inside:
- PXL_20220620_145734918.jpg (315.03 KiB) Viewed 913 times
Just got to drop the lid back on. Mouse working too, I changed from the heat shrink on the rollers with silicone tube and added the 22mm steel ball, and though it requires a surface with a decent amount of friction to work, work it does
Total tally of repairs:
1x CMOS/RTC chip
1x 74HCT245 buffer
7x mainboard capacitors (Maybe a few more than that!!)
15x capacitors in the PSU (Super fishy PSU this one!)
A bunch of bodge wires
A ton of time
It's been an interesting project, but next I need to learn properly how to drive it (The O/S is a bit, well, odd) I think network access is going to be a must too, as despite the vast array of floppy disk formats the machine can do (Good job there Acorn), it's a troublesome way to get software onto the machine.
Currently it has econet installed, but that uses a din plug, not RJ45, so at present it is very much offline.