System information

Maintenance and Troubleshooting 9797B-70 C-Band TXRX
7-16
one location on the equipment frame to the same location on the opposite side of the equipment
frame (ie from the top left of the reflector mounting frame to the top right of the reflector
mounting frame). Do NOT add counter-weight during this step.
4. Last, balance the antenna with the elevation pointed at, or near, zenith (referred to as top to bottom
balance) by moving existing counter-weights from the top to the bottom or from the
bottom to the top. Always move weight from one location on the equipment frame to the same
location on the opposite side of the equipment frame (ie from the top left of the reflector
mounting frame to the bottom left of the reflector mounting frame). Do NOT add counter-weight
during this step.
5. When completed, the antenna will stay at any position it is pointed in for at least 5 minutes (with no
ship motion).
6. Do NOT cycle antenna power to re-Initialize the antenna. Return to the ACU, which is still in
REMOTE BALANCE mode, and press ENTER to exit Remote Balance Mode. When you exit Balance
Mode the antenna will be re-initialized, which turns DishScan, Azimuth, Elevation and Cross-Level
drive ON.
7.4.2.
Select the REMOTE TILT window on the ACU and;
To Adjust Tilt:
1. While at the Remote Tilt window, press the UP arrow.
2. Set a bubble (or bulls-eye) level on top of the Level Cage assembly.
3. Press the number 5 to zero the tilt sensor bias. NOTE: If the level cage is not within 4 degrees of
level fore/aft or left/right, replace the Level Cage assembly.
4. If the level cage is within 4 degrees, use the 2 and 8 key to adjust LV (fore/aft) until the level cage is
level in this axis.
5. If the level cage is within 4 degrees, use the 4 and 6 key to adjust CL (left/right) until the level cage is
level in this axis.
6. Once the level cage is level in both axes, wait for 30 seconds then press the DOWN arrow key and
then press the ENTER key.
7. Press MODE (or ENTER) to step the menu to REMOTE PARAMETERS.
8. Press the UP arrow key and then press the ENTER key to save the settings in the PCU.
This save the new tilt bias settings in the PCU. Reset or re-initialize the antenna to verify that the Level cage
is properly level with the new settings.
7.4.3.
Select the REMOTE COMMAND window on the ACU and;
To Reset/Reinitialize the Antenna:
1. Key in .94 and then hit the ENTER key (note the decimal point) to access the utility commands.
"^0000" should appear in the command window.
2. Key in 90 and then hit the ENTER key.
This resets the PCU on the antenna. The antenna will reinitialize with this command (Performs a similar
function as a power reset of the antenna).