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Welcome to Project 64!
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The goal of Project 64 is to preserve Commodore 64 related documents
in electronic text format that might otherwise cease to exist with the
rapid advancement of computer technology and declining interest in 8-
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use the information herein you do so at your own risk.

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The Project 64 etext of the Aprospand-64 operating manual
Converted to etext by UnR00ster

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***************************************        __
* Aprospand-64 expansion module       *       / _|__
*      operating manual               *      | / |_/
*                                     *      | \_|_\  c o m m o d o r e
* E-mail: unr00ster@worldnet.att.net  *       \__|    C O M P U T E R
***************************************

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[FROM THE BOX COVER]

Aprospand-64 tm

Gives your Commodore 654 or 128 full expandability! 

This superbly designed expansion module plugs into the expansion port & gives
you 4 switchable (singly or in any combination) expansion connectors -plus fuse
protection -plus a reset button!  Before you buy an expander, be sure that it 
has a fuse to protect your computer and that you can activate you cartridges in
any combination allowed by the cartridges.

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APROSPAND-64

OPERATING MANUAL

Congratulations!  Your(sic) are the owner of a 4 place, switchable expander for
the Commodore 64 or 128 computer.  The operation of Aprospand-64 is as follows
and is very simple.  

To use Aprospand-64, be sure that the computer power is turned off then plug
Aprospand-64 into the right rear expansion cartridge connector slot.  Be sure 
that the Aprospand-64 is firmly seated by assuring that the small metal fuse 
clip nearest the computer goes inside of the computer.  If it does not, the  
unit is not firmly seated.  Rock slightly back and forth while pushing to allow
it to seat correctly.  Next, turn on the computer and see that the display screen
comes on with the standard "Bytes Free" power on message.
To use any cartridge designed for the C-64 or C-128, first be sure that the 
computer power is turned off then simply plug the cartridge into one of the 
four expansion slots on Aprospand-64.  Be sure that it seats firmly into place.
The connectors used in Aprospand-64 are of the highest industrial quality 
(technically, gold-plated, bifurcated-contact) and have the exact same 
configuration as those used in the computer so there will never be any 
compatibility problems with any cartridge made for the computer.

Next, turn off all the four cartridge slide switches located on a row on the 
right hand side of Aprospand-64 by pushing the slide to the position farthest 
from the computer, then turn on the power to the computer.  After the “power 
on” message is displayed on your display screen, switch on the cartridge you 
want to use by sliding its adjacent slide switch toward the computer 
(ON position) then momentarily push the black round reset pushbutton switch.  
In a few seconds, Presto! – the display screen will show the new display 
associated with the particular cartridge you have selected.  You may install 
up to 4 cartridges in Aprospand-64 and the only thing you need to do to select
from one to the other is to switch off all but the one you wish to use, then 
momentarily press the reset pushbutton.  A few seconds after pressing the reset
pushbutton, the computer will initialize in the mode of the newly selected 
cartridge.  In some cases more than one cartridge may be used at the same time.
To determine which cartridges are compatible, read the cartridges’ 
instruction manual or simply switch them on simultaneously and press reset.  
If not, the display screen will fill with random characters or otherwise 
clearly exhibit non-compatibility.

The fuse supplied with Aprospand-64 is rated at 1 amp which gives your computer
maximum protection from overuse of power from its power supply.  This means 
that the maximum power all of the cartridges used at one time in Aprospand-64 
is limited to 1 amp.  If you put cartridges into Aprospand-64 which use more 
than the 1 amp limit, the fuse will open (the small wire inside of the glass 
tube of the fuse will break open) thus protecting your computer.  In some cases
you may wish to use more than the 1 amp allowed by the fuse by using a larger 
current fuse such as a 2 amp type of the same physical size.  Aprotek does not
necessarily recommend this.  Some computers may be able to supply the 
additional current with no problem but others may not be able to.  If you need 
to try to use a larger value fuse, be sure to check the power transformer of 
the computer occasionally to make sure it does not overheat.  If, at any time, 
it is too hot to put your hand on it and leave it there, it is unable to safely
supply the added power.  You should acquire a separate wall plug type power 
supply to power that cartridge safely and in accordance e to the specifications 
of the manufacturer of the cartridge.  Whenever powering a module in this fashion,
be sure to remove the fuse from Aprospand-64.  Some video display cartridges (80 
column cartridges) require large amount of power from your Commodore-64 and may 
burn out the fuse on Aprospand-64.  If this occurs you may by(sic) able to install 
a larger fuse, then install the video display in the connector closest to the 
computer.  If this does not result in correct operation, you will have to buy 
a separate wall plug supply (5 volts at 750 milliamps or more) to power that 
cartridge while inserted into Aprospand-64.  A few computers do not have interface 
circuits and extra power of sufficient strength to operate a video display and 
other cartridges at the same time.  If you r computer happens to be one of these, 
your only alternative is to power the video display cartridge separately as
described above.

SOME DOs AND DON’Ts

To be assured of reliable operation of Aprospand-64 and your cartridges be sure 
to keep them stored in a clean environment and avoid touching the connector 
portion.  A clean rag saturated with ordinary rubbing alcohol or electronic 
contact cleaner may be sued to clean the printed circuit board edge contacts 
on your cartridge or Aprospand-64.

Keep all foreign objects out of the connector slots on Aprospand-64.  Plugging
a cartridge into a connector with a foreign object may cause irreparable damage
to the connector.

Always install cartridges with the label facing foreword.

Never switch a cartridge in or out of use unless you reset the system with the
reset pushbutton before continuing on with your activities.  In some cases it 
may be necessary to push and hold the reset pushbutton for several seconds.