Macintosh 128K with "Maccessories Swivel"

[Heep]

Just found this little charmer. Yellowed as can be, and gives a "043420" error code when turned on.

What I found interesting, though, was the "Maccessories Swivel" mounted to the bottom of it, which, as would be expected, allows the unit to swivel.

I tried a search on the error code, but couldn't find anything useful. Anyone know anything about that code?

 

[Paralel]

Lucky find, an original Mac.

 

[Nathan]

If it occurs at start-up, I'm guessing it's a hardware error. Looking at my book it seems that all the hardware errors are memory errors? Gonna guess at some problematic/dead memory chips. Thing is, if that's true, you'll have to find new chips to replace any that are bad. Does anyone know if chips can be removed without causing it to not boot (ie, if it's wired through)? I can't be sure and if someone would like a photo/scan of the page to get a better idea, I can do that.

 

[iMac600]

The outer case to me looks perhaps a little yellowed but overall not that bad. They were beige from the factory (Pantone 453) so it's probably not that far off. Maybe just needs a clean and it'll come up nicely. Photos can deceive though, so I can't really tell.

Either way, looks like a perfect foundation for a restoration, once the error code is cleared.

 

[MidnightCommando]

Nice find! I believe the error is memory related.

It's not possible to boot the Macintosh without its full complement of memory, if I recall correctly, so your best bet would possibly be to take off all the RAM (it's in its own little section), put sockets down, and insert new DRAM chips in each (now socketed) position.

This will save you trouble in the long run too. Even if only one RAM chip is not working, something probably made it that way - RAM is hard to destroy under normal working conditions.

I noticed on your Asante topic that you said it was your first post. Welcome to the forums!

 

[H3NRY]

You have a memory error, specifically the RAM failed the Mod 3 test. See here:

http://www.mac512.com/macwebpages/sadmac.htm

RAM failure is not common in a stock 128K, but it is very common in an upgraded one due to loose or oxidized connections. When you take the back off, you may find someone has installed sockets and 512K of RAM, or there may be a 3rd party RAM expansion board.

 

[Nathan]

Nice chart, I've got basically the same one in a book. The one on the webpage you mention is slightly better explained though. They didn't put in the XXXX after the class code so it's a little harder to piece together how the error is arranged.