Ic-600 Power Source - BOMBARDIER LEARJET 40 Pilot's Manual

The display information provided on EFIS is generated by two IC-600
computers located in the nose. Each of the IC-600s contains circuitry
that performs the symbol generation function for the EFIS. Along with
interfacing with the display units, the ICs receive data from the Data
Acquisition Units (DAUs), Air Data Computers (ADCs), Attitude
Heading Reference System (AHRS), navigation system, flight manage-
ment system, autopilot and other various display controllers. The CAS
monitors the IC-600 bus interconnect, the temperature of each IC-600,
the IC cooling fans and Weight-On-Wheels (WOW). A CAS will also
illuminate if communications between the left and right ICs are invalid.
The following CAS illuminations are specific to the IC-600:
CAS
IC 1-2 OVHT
IC BUS FAIL
IC1-2 FAN FAIL
IC1-2 WOW INOP

IC-600 POWER SOURCE

The #1 and #2 IC-600s are powered from the left and right essential
buses respectively. The circuits are protected by the 7.5-amp IC/SG 1
and IC/SG 2 circuit breakers on the pilot's and copilot's circuit break-
er panels (INSTRUMENT/INDICATIONS group).
PM-132A
Color
Amber #1 and/or #2 Integrated avionics Computer
(IC) are/is overheated.
Amber -The off-side IC has failed.
or
- IC bus invalid
White #1 and/or #2 Integrated avionics Computer
(IC) cooling fan has failed.
White The associated (#1 or #2) Integrated avionics
Computer (IC) has tripped the weight-on-
wheels validity monitor.
Pilot's Manual
Description
5-31