Flightcom 403mc Installation & Operation Manual page 5

PROCEDURE FOR WARRANTY CLAIM
Please send in your warranty card promptly. When returning a unit for repair, enclose a copy of your original, dated bill of sale or the installation
certificate as proof of purchase. Defective units must be shipped to us with the freight prepaid.
Fig. 9 PTT (Push-to-Talk) Switch Modification
Mic audio needs to go straight through and not be switched. Make modification inside the in-line jack or switch housing. Use a continuity tester
to locate the wire from the ring connector of the mic plug.
Fig. 10 Drill Templates
.4"
3/16"
9/32"
DRILL TEMPLATE #1
(For panels less than .1" thick)
In the event that you need to remove your intercom for service, we suggest the following wiring as a by-pass plug, so that radio audio may still
be heard, even when the intercom is removed.
Fig. 11 By-Pass Plug Wiring Diagram
DB25-f
PTT
9/32"
.4"
.3"
.3"
.185"
3/16"
1/4"
1
2
7
8
9
11
13
17
21
ADD CONNECTION
Modification to double-pole
push-to-talk switch for use
with installation.
.4"
.3"
3/16"
1/2"
1/4"
DRILL TEMPLATE #2
(For panels between .1" and .2" thick)
1/2"
.4"
.3"
.185"
3/16"
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