I have just come into the possession of an Apple ][+ which unfortunately doesn't seem to be working.
On the motherboard there's 820-0001-07 written with copper etching next to the PSU.
At the back corner next to the PSU there's a white field with either '10/8' or '1078' in black lettering.
The Keyboard encoder is marked with 'Encoder Discrete Keyboard' and '605-x105-'
(The last '0' is incomplete, so could even be a '9')
In the first slot on the motherboard there's a card marked with 'Synergy Card' and 'Spies laboratories'
(Google comes up empty on that one)
It is populated with RAM chips and a cable also goes from it and to the first socket for RAM chips in the E row on the motherboard. In addition there's a long pin-header(2x17) and a 40pin IC socket on it.
There's also a small extra PCB between the motherboard and the Keyboard-controller, with 2 2716 EPROMS and 74LS253 IC. (The PCB uses both the IC socket used for the keyboard-controller cable and the EPROM IC-socket beside it) I assume that this is to adapt it for the Norwegian alphabet.
(The board was made here in Norway, according to markings)
When I switch it on it gives a beep, then clears the screen and displays 'APPLE ÆÅ' at the top.
(The ][ symbols are replaced by two Norwegian characters. I assume the two EPROMS on that extra PCB have something to do with it)
No amount of pounding on the keyboard makes it do anything.
I've checked the 5V voltage and it's just... perfect.
(Stable at 5V +/- 0.05V according to my meter)
Anyone has any idea?
I can try to take a few snaps with my iSight camera if it's any help...