User Manual
OPERATION AND INSTALLATION MANUAL
KVJEVR718
Enhanced VHF Radio
EVR716
23-11-02
Page 40-3/40-4
2000/02/15
3. Default Operating Instructions
The result of the tests activated either by power up or by the "TEST" pushbutton on the
front panel, is displayed on six LEDs on the front panel (see figure 10-3).
The following table presents the different cases :
LED LIGHTING CAUSE CORRECTIVE ACTIONS
"FAIL LRU" Red comes on when the operator
initiated tests (init or
pushbutton) detect an internal
fault on the EVR716
transceiver (except on ARINC
429 bus or discrete inputs).
Replace the EVR716
transceiver.
"FAIL IN" Red comes on when the operator
initiated tests (init or
pushbutton) detect an input
fault on ARINC 429 bus or
discrete inputs.
− Check the interwiring.
− Replace the EVR716
transceiver
"PASS" Green comes on when the operator
initiated tests (init or
pushbutton) do not detect any
fault.
Not applicable
"VSWR" Red comes on when VSWR
measured by the EVR716
transceiver is higher than 2:1.
Not applicable
"TX" Green comes on when the EVR716
transceiver is in transmit
mode.
Not applicable
"RX" Green comes on when the EVR716
transceiver is in receive mode.
Not applicable