BendixKing SG 465 System EFS 40/50 - Manual (Page 194)

Operating Instructions
Consult Aircraft Flight Manual
Supplement for specific proce-
dures and limitations in opera-
t i o n .
PREFLIGHT PROCEDURES
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START UP
At engine start, power should not
be applied to the EHI 40/50 sys-
tem, low voltage may turn the
E F S 40/50 system off momentar-
ily, and transient voltages may
induce premature failures. With
engines operating, turn on gyros
and flight control systems, turn
on avionics master switches to
include the EFS 40/50 master,
and turn on NAV systems to
remove the EHSI flags.
When power is initially applied to
the EFS 40/50 system, various
flags maybe annunciated on the
display, representing systems not
yet operational.
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SELF TEST
Adjust BRT control on the
E F S 40/50 CP 467, CP 468 or
E D 461 and CP 470 for the
desired brightness.
After a short warm-up time, press
and hold the TST/REF button for
three seconds to display the
SELF TEST. A SELF TEST
PASS or SELF TEST FAIL mes-
sage will be annunciated. If the
system is operating properly the
SELF TEST PASS message will
be annunciated. If a malfunction
exists, SELF TEST FAIL will be
annunciated and the system
should be serviced. Refer to fig-
ure 5.1 and 5.2, Self Test annun-
ciation. Additionally, the pilot
should ensure that the compass
scale is white, which indicates
that all three colors are opera-
tional in the display unit.
Note: Performing the EFS 40/50
Self Test is not required at
anytime. If a failure was to
occur or exist, the small RED
SG in a red box would be dis -
played. This test is intended to
familiarize the pilot with the
various flagging methodology
used and a quick check for
proper color presentation.
The EADI self test page will auto-
matically revert to a normal EADI
display. After software 07, the
EHSI will also automatically
revert to normal operation from
the self-test page after five sec-
o n d s .
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PUSH BUTTON TEST
Check each push button function
on the EFS 40/50 control panel.
Push button operation should be
as described in 2.1 EHSI Opera-
tion, 2.2 EADI Operation, 2.3
RADAR Operation.and 2.4 MFD
O p e r a t i o n .
5.1 Issued 8/10 SW 04/05/06/07/08/09/10/11/12/13/14/15/16
OPERATING INSTRUCTIONS
Section 5mp 9/9/10 3:52 AM Page 5.1