(2) Audio control
(a) VOR system
1 The VOR/MKR receivers apply their VOR audio output to the
_ audio integrating system. This system controls and directs the output to the headsets and/or the loud speakers. The AMU controls the audio level through the ACP. On the ACP, the pilot must push the VOR 1 (2) pushbutton switch and adjust the related potentiometer to the correct audio level.
2 In case of ATIS message transmission by the VOR station :
_
-it is necessary to push the ON VOICE pushbutton switch on one ACP in order to hear clearly this information without Morse signal.
(b) Marker system The VOR/MKR receiver 1 applies its marker audio output to the audio integrating system. This system controls and directs the output to the headsets and/or the loud speakers. The AMU controls the audio level through the ACP. On the ACP, the pilot must push the MKR pushbutton switch and adjust the related potentiometer to the correct audio level.
D. Warning (Ref. Fig. 004A) The warning related to the VOR is the local warning shown on the VOR/ADF/DME RMI. In case of VOR fault, a flag comes into view on the VOR/ADF/DME RMI.
**ON A/C ALL
4. Power Supply
____________
R **ON A/C 001-049, 051-099, 101-105, 151-199,
(Ref. Fig. 002)
Energization of each system is through 115VAC 400Hz buses :
-
115VAC ESS BUS 401XP via circuit breaker 2RS1 for system 1
-
115VAC BUS 2 204XP via circuit breaker 2RS2 for system 2.
The 115VAC ESS BUS 401XP energizes the VOR/DME RMI via circuit breaker 12FN.
R 1EFF : ALL 1 34-55-00Page 21 1 1 May 01/05 1 1 1CES 1R **ON A/C 106-149, 201-299, 301-399, 401-499,
(Ref. Fig. 002A)
Energization of each system is through 115VAC 400Hz buses :
-
115VAC ESS BUS 401XP via circuit breaker 2RS1 for system 1
-
115VAC BUS 2 204XP via circuit breaker 2RS2 for system 2.
The 115VAC ESS BUS 401XP energizes the VOR/ADF/DME RMI via circuit breaker
12FN.
**ON A/C ALL
5. Component Description
_____________________
**ON A/C 001-049, 101-105, 151-199,
A. VOR/MKR Receiver
(1) External description (Ref. Fig. 005) The front panel of the VOR receiver contains the following items:
-Two pushbutton switches to enter the functional test mode with various LCD screen menus or messages.
-
A RS232 Port Connector as external interface with a keyboard an terminal display.
-
A Liquid Cristal Display (LCD) used to display faults and as an
operator interface for certain modes. The back of the VOR/MKR receiver contains an ARINC 600, shell size connector to provide electrical connections to the aircraft wiring via mount. Contact grouping is as follows:
-Top Plug (TP): connection with the automatic test circuit
-Middle Plug (MP): connection with the peripheral circuits
-Bottom Plug (BP): connection with the power supply circuit and the antennas.
1EFF : ALL 1 34-55-00Page 22 1 1 Aug 01/05 1 1 1CES 1
VOR/MKR Receiver Figure 005
R 1EFF : 1 1 1CES 001-049, 101-105, 151-199, 1 111 34-55-00 Page 23 May 01/05
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
A. VOR/MKR Receiver
(1) External description (Ref. Fig. 005A) The face of the receiver is fitted with a handle, two lugs, a TEST pushbutton switch and test LEDs. The name, color and function of the LEDs are as follows:
-CONTROL FAIL (red) indicates that the control input data are faulty
-
LRU STATUS (green) indicates that no faults are detected during the self-test sequence
-
LRU STATUS (red) indicates that a fault is detected during the
self-test sequence. The back of the VOR /MKR receiver contains an ARINC 600, shell size connector to provide electrical connections to the aircraft wiring via mount. Contact grouping is as follows:
-Top plug (TP): connection with the automatic test circuit
-Middle plug (MP): connection with the peripheral circuits
-Bottom plug (BP): connection with the power supply circuit and the antennas.
**ON A/C ALL
(2) Internal description
**ON A/C 001-049, 101-105, 151-199,
(Ref. Fig. 006)
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
(Ref. Fig. 006A)
**ON A/C ALL
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