V A L A V I O N I C S , L I M I T E D
C O M 7 6 O T S O V H F T R A N S C E I V E R
INSTALLATION/OWNER’S MANUAL PAGE
21
VPN 701002
REVISION 6-AUG 1999
PARAGRAPH
2.3.5
Post Installation Check
An operational performance flight test is recommended after the installation to insure satisfactory performance of the equipment
in its intended environment. Prior to conducting the in-flight test, visually and functionally check that all aircraft control
assemblies have full travel and that no obstructions are present to interfere with their normal operation. To operationally check
the COM 76O TSO VHF Communications Transceiver climb to and maintain an appropriate altitude and contact a ground
station of a distance of at least fifty nautical miles. Then contact a ground station close in. If possible, verify the communications
capability on both the high and low end of the VHF communications band.
Note:
A transmit indication decimals will be present at the lowered right hand side of the display when a transmit condition
exist as will a horizontal bar on the far left center during intercom operation. (if wired for intercom option).
Intermittent breakup of incoming calls or complete lack of expected calls ban be overridden by pulling out the volume
control know and defeating the automatic squelch feature (Received calls from out of range stations can cause this
condition.)
2.4
WIRE COLOR, CONNECTOR TERMINAL ASSIGNMENT & FUNCTION
FOR UNIT WITH FACTORY PRE-WIRE OPTION
BLACK
P101-1
Power Ground
GRAY
P101-18
Headset Ground
BROWN
P101-9
Microphone Audio
WHITE
P101-6
Microphone Key
YELLOW
P101-4
Memory Power In
BLUE
P101-12
Receiver Audio (HEADPHONE)
VIOLET
P101-13 & 14
Auxiliary Audio Input
GREEN
P101-10
Cabin Speakers
RED
P101-3
13.75VDC Power Input
GRAY & WHTE
(Twisted Pair) connect to aircraft PTT
Switch n Yoke is used, otherwise cap
wires and tie off for future use.
