The Link 02 64 Corner

               64 CORNER

            JOYSTICK PORT 2

            SCAN LEFT/RIGHT

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 HOW do i install an 8/9 SWITCH in my
 DISK DRIVE?

 if you have a old style 1541 drive,
 open it up and scan the board for a
 CIRCULAR PAD labled j1. in most cases
 you will find it toward the front of
 the board just in front of the large
 40 pin chips, in the centre.



 you will note that the pad is SPLIT
 into two parts with a small track
 connecting them. CUT the track with a
 sharp blade and connect a wire to each
 side of the pad. connect the other
 ends of the wire to a on/off switch
 and mount the switch in your case.





 when the switch is turned ON the drive
 will be a number 8. OFF will turn it
 into a number 9.

 you must either RESET the drive or
 switch it OFF and ON to change devices
 after you change the switch direction.
 this will allow the drive to reset
 into the desired drive number.



 if you own a new mark 2 disk drive,
 all you have to do it trace the tracks
 on the BOTTOM of the CIRCUIT BOARD
 from the device switch and make your
 own connections. this will allow you
 to install a 8/9 switch in a more
 desired position.





 HOW do i install a RESET button into
 my disk drive?

 first obtain a momentry on RESET
 button.

 now look on your circuit board. you
 will find a 40 pin chip labled 6502.




 now on one end of the chip you will
 see a NOTCH. connect one wire to the
 pin to the RIGHT of the NOTCH on the
 end of the chip. this is pin 40.

 another wire should be connected to
 EARTH. the best place on the older
 1541 drives is on the '-' MINUS side
 of the rear LEFT capacitor.



 on a 1541 mark 2 drive, look at the
 TRACKS on the OUTER edge of the board
 and follow them through. you will find
 that they are EARTH also. connect the
 second wire to a point that connects
 to these tracks.






 connect the wires to your PUSH BUTTON
 switch and mount your switch into the
 case.

 when ever the drive light is flashing
 you can. use the reset button to RESET
 the drive.

 you can also use reset when changing
 8/9 devices.


 HOW do i install a READ/WRITE switch
 in my disk drive?

 obtain a on/off switch.

 open the case of the drive and look
 at the CARRAGE.  (the mechanical part
 of the drive that holds the disk).




 on the left/front of the carrage, you
 will notice a small CIRCULAR device.
 this is positioned at the place where
 you disk is normally NOTCHED.

 connect two wires to the TWO wires on
 this device and the also to your
 switch. install the switch in your
 case.



 now to use the READ/WRITE SWITCH, turn
 it on and when you write or copy to a
 disk and the disk is write protected,
 the drive will WRITE to it.

 when the switch is off the drive will
 work as normal.

 SWITCH OFF when not needed.






           thats all folks!!

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