7
Drive Programming'
Drive programming on assembled units has been done at the factory. The
following is supplied for the convenience of technical personnel.
Programming Shugart, Siemans or Wangco Drives.
Carefully remove both drives from their boxes and turn the drives so that the
edge connectors are nearest you and so that the belt and pulleys are on the bottom.
( )
At the bottom left corner of the board you will notice what looks 1ike an IC
made up jumpers in a socket. On one of the drives remove the jumper block
with a screwdriver and bend upward (straight) the pins that go to terminals
DS2, DS3 and MX. Do not break these pins off. Reinstall the jumper block into
the socket. As a double check the jumper block should have pins inserted only
in terminals DS1, HS and the unlabeled pin. There should be nothing plugged
into the HM position. This drive is now programmed as DRIVE 0.
( )
On the other drive, bend straight out the pins going to DS1, DS3 and MX.
Re-install the jumper so that HS, DS2 and the unlabeled pin have jumper pins
installed.
( )
Directly above this jumper block you will notice what appears to be a 14-pin
IC in a socket. This is not an IC but is an array of pull-up resistors.
Carefully remove this array from its socket using a small screwdriver. This
array should not be reinstalled. This drive is now programmed as DRIVE 1.
