Rf Detector; Antenna Gyro Assembly - KVH Industries TracVision Cruiser User Manual

A Guide to TracVision Cruiser
Following the removal and
replacement of the antenna gyro
assembly, it will be necessary to
calibrate the gyro and restart
the system.
5-6

5.4.2 RF Detector

Estimated Time to Repair:
The RF Detector PCB (Item 2) receives operating voltages from
both the CPU board and the IRD (via the RF cable) – Fig. 5-1.
Ensure that all power is turned off before proceeding.
1. Remove 2 RF connectors from the coaxial
fittings on the PCB. Tag the cables to ensure that
they are returned to the same connectors.
2. Remove the Molex connector from J3 – Fig. 5-5.
3. Remove 3 pan head screws (Item 33) – Fig. 5-4.
Remove the RF Detector PCB from the rotating
plate.
4. Installation of the replacement RF Detector is the
reverse of this procedure. Be sure that the RF
cables are restored to their original positions. Be
sure that the center conductor pin is centered in
the connector before tightening the collar.

5.4.3 Antenna Gyro Assembly

Estimated Time to Repair: 1 hour
The antenna gyro assembly (Item 16) is mounted on the rear of
the antenna reflector bracket (Item 17) with four locking nuts
and washers (Items 52 and 53) – Fig. 5-3. Following the
removal and replacement of the antenna gyro assembly, it will
be necessary to calibrate the gyro and restart the system. A
digital level will be required for the calibration procedure.
Directions for removal, replacement, and calibration follow:
1. Remove quick release pin (Item 14) from
actuator pivot bracket (Item 8) – Fig. 5-2.
2. Remove shaft from linear actuator (Item 7) –
Fig. 5-2.
3. Remove 16 pan head screws (Item 60) from the
cover flanges. Remove PCB cover – Fig. 5-1.
4. Remove the screw and clamp (Items 59 and 30)
holding the cable to the rotating plate; save the
cable clamp for reuse – Fig. 5-4.
⁄ hour
1
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