I do believe when the A for Alpha shows up it is not necessarily referring to the Greek "Alpha" symbol but instead to a hexadecimal code referring to a specific location in memory. I learned to break hex code down like this:
Digits 0-9
Letters A, B, C, D, (sometimes E as well depending on the manufacturer of the computer, logic board, and memory all three) and lastly F.
The error code breaks down to where the first part of the error references a memory problem, as you have discerned, and the second part of the problem refers to the specific address (which you have also inferred). My guess is since the last four digits are now A000, there is also a problem in whatever your particular 128k thinks is the very first memory module (or in this case a soldered chip, if your 128k is like mine) on the logic board. If you replace whatever chip corresponds to the address ending in A000 for the ROM, well then you will either see the 128k come back to life or it will refer you to another failed memory module (again, hopefully in this case a soldered chip if yours is like mine.)
Don't be surprised if multiple memory chips have failed, things like this are known to happen on 128k's approaching their 30th birthdays (indeed, my 128k tries to boot, but it has no horizontal deflection and the general consensus on my posting is I have these more reliable looking (until a much more spectacular failure occurs) tantalum capacitors instead of the much more messy (which I couldn't have handled) but easier to spot a failure aluminum capacitors. Everything from the CRT to the floppy drive to the logic board all checks out, it's just the not so bad at all loss of horizontal deflection.
I had the 3rd Edition of Sad Macs, Bombs, and Other Disasters, and it taught me about error codes like yours. I hope this information can prove helpful, as it's the best I have. I am truly sorry your poor 128k is ailing like that, and like I have someone praying for my 128k, I will be praying for yours.
Us 128k owners have to try to help each other out, you know-and this was something I was able to shed a little light on. Bless you and have a great day. Alex Harris :b&w:
