| Attachment | Size |
|---|---|
 clock.BIN | 4 KB |
Good morning, someone know if this card is a clone of anything?
MouseDesk recognize it as "Thunderclock" but I think this is some type of standard, any related utilities that I try don't let me to set up time and date.
I also attach dump of eprom, wich A8, A9, A10 and A11 is driven by I/O pins of 6821.
The board has space for two jumpers, but it was never soldered. These jumpers only set to 1 or 0 two I/O pins of 6821.
The broken resistor is only for battery recharge.
Thanks in advance for any info.
The one that first comes to mind that has that HD6821 is the TimeMaster II HO Clock card.
Try the drivers for that card first.
Maybe repair that broken 10K resistor too...
Dumping the contents of that EPROM might give some kind of clue.
thanks but unfortunately that seems not to work.
I suppose I have to try one by one all the utilities of the known cards, hoping to find the one that works.
The resistor will be repaired
Regards
the dump is at the end of first post, thanks.
The other clock it resembles based on installed components is the original TimeMaster. https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Clock/AE%20TimeMaster/Photos/AE%20TimeMaster%20-%20Front.jpg
Also, there appears to be a broken trace to the right of the handwriting. That and the broken resistor will prevent this from working. And you'll need to figure out where the battery goes...
The driver for the original TimeMaster is here:
https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Clock/AE%20TimeMaster/
I missed the ROM dump before. I would guess that the battery goes under where it says Mar Clock. It looks like something was cut off from there, like a soldered on battery. That's smart since those tend to leak and cause damage. The problem is with it missing knowing what type of battery, voltage and the polarity to hook up a new one. A pretty good guess can probably be made by looking at similar clock cards and tracing back to the components.