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GENERAL PRlNCIPLES
AND CAUTIONS
c
section
If
the problem component cannot be identified from the
following information, the owner should consult a
.
Teleflex autopilot dealer or if no dealer is available call
.
customer service at
.
4:30
9:oO
AM to
I . Before you attempt to connect or disconnect any
to the
wiring
system, first turn off the
at the power distribution panel. The line drivers in par-
ticular may be damaged
+
each other with the power on.
.
2. When installing or updating wiring, always double
the
check
colour coding before switching on the power
3.
A Keyboard Console must be connected to Port A for
correct operation. Double check to make sure the brown
and violet wires are connected to the
.
terminals.
4. Do not use a simple VOM type analog meter to check
powered up digital logic lines or signal lines. Use a DVM
or an oscilloscope.
5. NEVER unplug
6.
Do not
an analog
use
1
range to test the Rudder Reference Unit. These can
put out enough current to damage the potentiometer.
Instead, use a digital volt meter.
.
7.
Never attempt to repair a board. Your full service
.
dealer can arrange for a replacement with a factory
.
board or for
rebuilt
(604) 270-6899
Pacific time from
PM.
any of the wires are shorted to
if
boards
with the power on.
VOM or
multimeter on the
repair if time permits.
Servicing
DC
power supply
ON
O f f
and
R X
Troubleshooting
and
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