9711-44 Ku-Band TXRX
Installation Troubleshooting
18-3
18.2.3.
360:1 Synchro
Observe the ship's heading display on the ACU. Compare its movement with that of the ship. If it does not
move at all go to step 1. If it moves but in the wrong direction (even if it does not display the correct
heading) go to step 2. If it moves in the correct direction but does not display the correct heading go to step
3. The gyro compass connects to the Terminal Mounting Strip on TB3- R1, R2, S1, S2 and S3.
CAUTION - Electrical Shock Potentials exist on the Gyro
Compass output lines. Assure that the Gyro Compass output is
turned OFF when handling and connecting wiring to the
Terminal Mounting Strip.
1.
The Ships Heading display does not change when the ship changes direction. Using a multimeter
read between R1 and R2. It should read 115 VAC. If it does not then a fuse is blown at the gyro
repeater or there is an open between the repeater and the ACU. Read between S1 and S2, S2 and
S3 and finally S3 and S1. They should all read between 0 and 90 VAC. The voltage level will change
as the ship turns. If one reading is very close to 0 volts wait until the ship has made a major change
in heading and then check voltage again. If the reading is still very low there is a problem in the line
between the gyro repeater and the ACU or a problem in the gyro repeater itself.
2.
The display changes in the direction opposite of the movement of the ship. Switch the secondary
leads S1 and S2. Caution: there is 90 VAC between them! Verify that when the ship changes
direction the display shows change in the same direction. If the direction is correct but the heading
is incorrect go to step C.
3.
If the ship's heading is different than the bridge, select the HDG function in the SHIP display mode
by pressing the SHIP key 4 times. Key in the correct heading using the numeric keys and press
ENTER.
Содержание 9711-44 KU-BAND TX/RX
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Страница 24: ...Site Survey 9711 44 Ku Band TXRX 2 8 This Page Intentionally Left Blank ...
Страница 64: ...Installation 144 Radome 9711 44 Ku Band TXRX 3 40 This Page Intentionally Left Blank ...
Страница 112: ...Basic Setup of the ACU 9711 44 Ku Band TXRX 5 4 This Page Intentionally Left Blank ...
Страница 114: ...Setup Ships Gyro Compass 9711 44 Ku Band TXRX 6 2 This Page Intentionally Left Blank ...
Страница 116: ...Setup Band Select 9711 44 Ku Band TXRX 7 2 This Page Intentionally Left Blank ...
Страница 122: ...Setup Home Flag Offset 9711 44 Ku Band TXRX 9 4 This Page Intentionally Left Blank ...
Страница 130: ...Setup Searching 9711 44 Ku Band TXRX 11 6 This Page Intentionally Left Blank ...
Страница 142: ...Setup Modem Connections Setup and Test 9711 44 Ku Band TXRX 13 8 This Page Intentionally Left Blank ...
Страница 150: ...Antenna Specific Operation 9711 44 Ku Band TXRX 16 4 This Page Intentionally Left Blank ...
Страница 154: ...Functional Testing 9711 44 Ku Band TXRX 17 4 This Page Intentionally Left Blank ...
Страница 158: ...Installation Troubleshooting 9711 44 Ku Band TXRX 18 4 This Page Intentionally Left Blank ...
Страница 180: ...Maintenance 9711 44 Ku Band TXRX 19 22 This Page Intentionally Left Blank ...
Страница 198: ...Drawings 9711 44 Ku Band TXRX 23 2 This Page Intentionally Left Blank ...
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