View Full Version : Help IDing 8 bit Multi-IO card

May 27th, 2014, 06:25 PM

Greets all!
Millions of these puppies of course.
As usual, need to reconfigure/disable board components.
I hope this picture helps off the bat, but I'll tell you what I know.
Not much on the back at all... I tried the FCC ID-
FHQ 484AC-XIO23 (or X1023...?)

It is a Floppy/Game/Parallel/Serial(2)/RTC.
I have a sixpack plus and need to make the two coexist.
It is Parallel/RTC/Serial/384K of course.
I read and appreciate the docs here about that card.
More data about both these cards would be nice too!
Thanks in advance!

Great Hierophant
May 27th, 2014, 07:17 PM
The only thing that this card has that the AST Six Pak Plus doesn't have is a second serial port. It doesn't seem to have any RAM. Although it does have one 8250B UART serial chip and a socket for a second chip, it seems to be missing the MC1488 and 1489 RS-232 Logic Level shifters required to make the serial port work. Undoubtedly that is what the two smaller DIP sockets are for.

May 27th, 2014, 09:50 PM
Thank you for examining it!
But I did want the game port too.
I wish I knew what the dip settings are.
'Tis a mystery...

May 27th, 2014, 09:50 PM
please desolder the RTC battery.

May 27th, 2014, 10:43 PM
Yeah, get rid of that battery or it may destroy the card or the computer it's in.

May 28th, 2014, 10:19 AM
Thanks to Modem7 for a special link to PDF GOLD!
Thanks to Great Hierophant- I found the Game port header on the 6pack!

I'll replace this strange card with a generic floppy card.
And yes, to all- I'll repair it's battery and nearby traces prior to selling it.
I will either mention com ports aren't available or add the mentioned ICs.
That'll take a while, so let's stare at it some more
And see who wins the identification game just for laughs! :D
Thanks everybody, I'm so glad to join you!
If I see a question I can answer here, I'll certainly try!

May 28th, 2014, 12:14 PM

Your 8bit I/O card really looks like this one :



May 28th, 2014, 01:01 PM
I'd say! I'd call that a winner!