9711 C & Ku-Band TXRX
Installation Troubleshooting
15-1
15.
Installation Troubleshooting
This section describes the theory of operation to aid in troubleshooting and adjustments of the antenna system. Also refer to
the Troubleshooting section of your ACU manual for additional troubleshooting details.
WARNING:
Electrical Hazard – Dangerous AC Voltages exist in the Breaker Box and the Antenna
Pedestal Power Supply. Observe proper safety precautions when working inside the Antenna
Breaker Box or Power Supply.
WARNING:
RF Radiation Hazard - This stabilized antenna system is designed to be used with
transmit/receive equipment manufactured by others. Refer to the documentation supplied by the
manufacturer which will describe potential hazards, including exposure to RF radiation, associated
with the improper use of the transmit/receive equipment. Note that the transmit/receive
equipment will operate independently of the stabilized antenna system.
The ultimate responsibility for safety rests with the facility operator and the individuals
who work on the system.
WARNING:
RF Radiation Hazard - Prior to working on the stabilized antenna system, the power
to the
transmit/receive
equipment must be locked out and tagged.
Turning OFF power to the
Antenna Control Unit does NOT turn Transmit power output OFF.
The ultimate responsibility for safety rests with the facility operator and the individuals
who work on the system.
WARNING:
RF Radiation Hazard - When the transmit/receive system is in operation, no one
should be allowed anywhere within the radiated beam being emitted from the reflector.
The ultimate responsibility for safety rests with the facility operator and the individuals
who work on the system.
15.1.
Troubleshooting Ships Gyro Compass problems
Ships Heading display does not follow ships movement and/or you are getting frequent or constant ERROR CODE
0001. Determine the type of gyro compass that is used on the ship, assure that the GYRO TYPE parameter is set
correctly (refer to the setup section of this manual) and then proceed to the step that lists the troubleshooting for the
correct type of Gyro Compass Signal.
15.1.1.
STEP-BY-STEP
1.
Verify that the GYRO TYPE parameter is set correctly.
2.
Observe the ERROR LED on the FRONT panel. If it is illuminated, this indicates that an error was
detected in the Step-By-Step input. Press RESET on the front panel. If the ERROR LED illuminates
again, the problem is in the four connections to A, B, C and COMMON.
3.
Check the connections to the TMS and to the ACU.
4.
Measure the voltage between COMMON and A, B, and C. Each reading should either be near zero or
35 to 70 VDC. If all three are zero, check the repeater fuses. If some read negative and some read
positive or if one reads an intermediate values the COMMON terminal is not properly connected.
5.
If the Ship - Heading display is different from the actual Gyro heading, access the Heading entry
menu and key in the correct heading value (refer to the operation Ship menu section). Note the
reading. After the ship has turned more than one degree, compare the new gyro heading with the
reading on the display, if it has moved in the opposite direction then reverse connections A and B.
Reset the ACU, put in the correct ship's heading again and verify that the display reading now
follows the Gyro heading.
Содержание 9711 C
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