Operation Manual

Simrad AP20 Autopilot
108 20220505H
Remove the PROM from the socket by means
of the special extraction tool (p/n 44139806).
Insert the tool by pressing the two grip pins
down into the two slots in the corners of the
socket.
Squeeze the tool and pull out the PROM.
When inserting new PROMS, make sure the
cut-off corner matches with the one in the
socket. Press it gently into the socket.
The identification tag indicates:
- Name of unit
- Part number
- Software version
WARNING ! Make sure that the right PROM
is mounted in the actual unit.
PROM for AP20 Control Unit:
P/N 22084834
PROM for J300X, J300X-40 and J3000X
Junction units: P/N 22081640
After change of PROM, perform a master reset as described
on page 104.
Cut-off
corner
Identification
tag
Slots