TracVision R6 Gyro Replacement Instructions

TracVision R6 Gyro Replacement Instructions ®

The following instructions explain how to replace the gyro assembly in a TracVision R6.

Tools Required •

#0 Phillips screwdriver

•

#1 Phillips screwdriver

•

#2 Phillips screwdriver

•

Cutting pliers

•

PC with the latest version of the KVH Flash Update Wizard installed TIP: The Flash Update Wizard is available to KVH-authorized dealers through the KVH Partner Portal at www.kvh.com/ partners.

CAUTION For your own safety, be sure to disconnect power from all wired components before performing this procedure. IMPORTANT!

Trim the excess length from any tie-wraps you install. Be sure to collect all trimmed portions from the antenna. If a portion of a tiewrap is lost within the antenna, it must be retrieved to avoid causing damage when the unit rotates.

NOTE: PCBs (printed circuit boards) are static-sensitive. Ensure you take the necessary grounding precautions before handling.

54-0397 Rev. C

1

TracVision R6 Gyro Replacement Instructions

Step 1 - Remove the Gyro Assembly a. Using a #2 Phillips screwdriver, remove the eight screws securing the radome to the baseplate. Remove the radome and set it aside in a safe place. IMPORTANT!

To preserve the integrity of the radome’s weather sealing gasket, be sure to remove the radome slowly and gently. Ensure that the gasket does not roll in any way. Figure 1 Radome Removal

b. Using a #1 Phillips screwdriver, remove the five screws securing the PCB cover. NOTE: Some older TracVision R6 antennas do not include a fan assembly. Figure 2 PCB Cover Screws

3

2

Fan Assembly

1

PCB Cover

2

4

5

TracVision R6 Gyro Replacement Instructions

c. Carefully tilt the PCB cover open, as shown in Figure 3. IMPORTANT!

To avoid damage, you must disconnect the fan connector on the PCB before you remove the PCB cover. Figure 3 PCB Cover PCB Cover Fan Wires

PCB

d. Disconnect the fan and gyro connectors from the PCB. Then set the PCB cover aside in a safe place. TIP: If your antenna does not include a fan assembly, simply disconnect the gyro connector. IMPORTANT!

Be sure to properly align the fan connector tab (see Figure 4) when reconnecting the fan connector later in this procedure.

Figure 4 Fan and Gyro Connectors

Aligned Tabs

ROTARY JOINT TO LNB

Fan Connector

Gyro Connector

3

TracVision R6 Gyro Replacement Instructions

e. Using cutting pliers, cut and remove the four tie-wraps securing the gyro cable. Figure 5 Gyro Cable Tie-Wraps

4

1 3 2

f.

Using a #0 Phillips screwdriver, remove the four screws securing the reflector bracket to the reflector. NOTE: Actual gyro appearance might vary (see Figure 9 on page 6). Figure 6 Gyro Bracket Screws

2

1

Elevation Gyro

Azimuth Gyro

4

3

4

TracVision R6 Gyro Replacement Instructions

g. Using a #0 Phillips screwdriver, remove the two screws securing the azimuth gyro to the bracket. TIP: Rotate the reflector bracket as needed to access the gyro screws. Figure 7 Azimuth Gyro Screws (bottom view of bracket)

Azimuth Gyro

1 2

h. Remove the two screws securing the elevation gyro to the bracket. Then remove the gyro assembly. Figure 8 Elevation Gyro Screws (side view of bracket)

Elevation Gyro

1

2

5

TracVision R6 Gyro Replacement Instructions

Step 2 - Install the Replacement Gyro Assembly Reverse these instructions to install the new gyro assembly. Ensure that each gyro is returned to its designated location (see Figure 9). Then reinstall the radome and reconnect power to the TracVision system. IMPORTANT!

Azimuth gyro wires are longer than elevation gyro wires. Use the gyro wire lengths to identify each gyro and return each gyro to its designated location. Reversing gyro locations will prevent the antenna from operating correctly.

Figure 9 Gyro Types/Wire Lengths

Elevation Gyro

Wires

Elevation Gyro

Azimuth Gyro

Azimuth Gyro

Step 3 - Flash the Main PCB The antenna software now needs to be updated, or “flashed” to ensure compatibility with the new gyros. Flashing also allows the antenna to use the most current satellite configuration data available. This procedure requires a PC with the latest version of the KVH Flash Update Wizard installed and an active internet connection. a. Double-click the KVH Flash Update Wizard shortcut on your PC’s desktop to start the Flash Update Wizard.

6

TracVision R6 Gyro Replacement Instructions

b. To ensure you have the most current data and software available, establish an internet connection. Then select “Check for Updates...” in the Flash Update Wizard’s Update menu (see Figure 10). Be sure to download any available updates. Figure 10 Flash Update Wizard Update Menu

c. Follow the instructions provided in the Flash Update Wizard’s “Help” menu to connect a PC to the TracVision R6 system. d. Follow the Flash Update Wizard’s onscreen instructions to flash the main PCB.

Step 4 - Calibrate the Gyros Now you need to calibrate the gyros to operate with the TracVision system. You will type the following commands in the Flash Update Wizard’s “TracVision Antenna Comms” window. TIP: Be sure to click the “TracVision Antenna Comms” window to select it before typing. a. Type HALT then press Enter. b. Type DEBUGON then press Enter. c. Type =CALGYRO then press Enter. If a “Scale factor out of range - bad gyro” message appears, contact KVH Technical Support. d. Type ZAP then press Enter. The antenna will restart. Wait one minute for system startup. The procedure is complete!

7