Fault Isolation - Honeywell KHF 1050 System Installation Manual

Preliminary - Subject to Change Without Notice
3. Fault Isolation Checklist
FAULT
Turn-On or
Pilot-Activated
Self-Test Fault:
Tuning Fault:
Contact Honewell Product Support for further assistance.
Revision 0
10640I00.SLK
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KHF 1050 SYSTEM INSTALLATION MANUAL
1. Check the connections to each unit
having an associated error condition.
Verify that 28 VDC power is being
2. applied to each unit and that the
voltage is steady.
3. Ensure the integrity of each coaxial
cable in the system and verify that each
is connected to the proper connectors.
1. Press PTT switch to retune antenna.
2. If unit fails to retune, select a
different frequency and try to retune
the antenna at the new frequency.
3. Turn the KHF 1050 system off and check
the coaxial cable connections between
the KAC 1052 and the antenna feedpoint.
4. Ensure that there is no evidence of
arcing in the connectors, antenna
feed-through insulator or at the
antenna.
5. Check the antenna. If it is a grounded
antenna, verify that the DC resistance
to ground is very low. If it is an open
wire antenna, verify that the resistance
to ground is very high.
Refer to the bonding information in
Section 6A.
Fault Isolation Checklist
Table 1004
ACTION
23-10-09
Page 1009
Mar/2003