AstroBASIC Audio Tape Interface Schematic - Created by Richard Degler|
Schematic for AstroBASIC Audio Tape Interface. A GIF version of this document is available
This is a new schematic of the Bally/Astrocade created by Ken Lill in August 2011 using
OrCAD Schematic Capture. The main differences between this schematic and the schematic available
in the the "Bally Service Manual" are "PINS" [I.E. Pin 15(26)]. All of those pins that had a
(26) after them have the (26) truncated. That is the position on the edge connector of the
original Printed Circuit Board, like it was shown in the manual. It is the 2 cutouts shown
in the front of the unit (furthest from the joystick sockets). On the 10-pin edge-connector on
the right side, the "Pins" have been renumbered to have a 100 prefix, like 101, 105, etc. Also,
this schematic is actually HIGHLY readable and can be zoomed-in quite closely.
Bally BASIC Tape Interface - By Bally|
This two-page instruction sheet is for the Bally BASIC 300-BAUD audio tape interface. The main
1) Audio Cassette Playback
2) Volume Control Adjustment
3) Audio Cassette Record
4) Record / Playback Test
5) BASIC Commands
Bally Service Manual - By Bally|
This is the official PA-1 Bally Service Manual that contains such useful information
as System operation, Disassembly, Motherboard Parts List, Layout, Schematic and more. If
your Bally Astrocade is broken and you have some electronics knowledge, then this should
be just what you are looking for.
The main version of this pdf is a scanned version of the service manual. This manual has also
been OCR'ed and is fully searchable. This OCR version is available here.
1) The Bally Arcade / Astrocade Parts Layout is available seperately in an easier to read format. Two versions are availabel:
2) The Bally Arcade / Astrocade schematic is available seperately in an easier to read format. Two versions are availabel:
Special Note: For some reason, Internet Explorer is unable to view these GIFs, but other broswers and
applications have no trouble at.
SeaWolf II Parts Catalog with Schematics - By Bally|
The arcade game Seawolf II is, basically, a hi-res Astrocade. Here are the schematics
and the parts catalog (which also contains schematics). These may prove useful
if you try to upgrade your Astrocade to hi-res (no small task!). Also, if you want to try hi-res,
then using this arcade board is supposed to be the best way to go.