Gyro Replacement Instructions

Gyro Replacement Instructions for TracVision C3/R5 ®

The following instructions explain how to replace the gyro in a TracVision C3/R5.

Estimated Time to Complete:

The main PCB is static-sensitive. Ensure that you take the necessary grounding precautions before handling.

1/2 Hour

Gyros are sensitive to shock. Handle the gyro carefully to avoid damage.

Tools Required •

Phillips-head screwdriver

•

11/32" open-end wrench

•

PC with the latest version of the KVH Flash Update Wizard installed

The Flash Update Wizard is available to KVH-authorized dealers through the KVH Partner Portal at www.kvh.com/partners.

Technical Support If you need technical assistance, please contact KVH Technical Support: North America, South America, Australia: Phone: +1 401 847-3327 Email: [email protected] Europe, Middle East, Asia: Phone: +45 45 160 180 Email: [email protected]

54-0366 Rev. A

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TracVision C3/R5

Replace the Gyro

Before servicing the antenna unit, turn off the antenna and disconnect vehicle/vessel power. Ensure power is removed from both the antenna and the receiver(s) or multiswitch connected to RF1 and RF2.

1. Turn off the antenna and remove the appropriate vehicle/vessel fuse to disconnect power. Ensure power is removed from both the antenna and the receiver(s) or multiswitch connected to RF1 and RF2. 2. Remove the eight screws securing the radome. Remove the radome and set it aside in a safe place.

Radome

Screws Be careful not to drop any of the small screws inside the mechanism. If a screw is lost within the baseplate, it must be retrieved to avoid causing any damage when the unit rotates.

Radome Screws

3. Locate the elevation motor shaft at the rear of the reflector.

Reflector Elevation Motor Shaft

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Elevation Motor Shaft

Gyro Replacement Instructions

4. Using an 11/32" open-end wrench, loosen the elevation motor shaft nut, but do not remove it.

Elevation Motor Shaft Nut

Elevation Motor Shaft Nut

5. Rotate the elevation motor shaft counterclockwise until it is fully retracted, as shown below. Then using a Phillips-head screwdriver, remove the four screws from the main PCB cover.

Elevation Motor Shaft

Main PCB Screw

Main PCB Cover

Elevation Motor Shaft Fully Retracted

6. Gently remove the main PCB cover, ensuring no cables are damaged by the edges of the cover.

54-0366 Rev. A

When removing the main PCB cover, ensure that no cables are damaged or pinched by the PCB cover edges. 3

TracVision C3/R5

7. Disconnect the gyro cable connector from the main PCB. J5 Gyro Cable Connector

J4

Main PCB

J11 J9

J2 J1

Gyro Cable Connector

8. Remove the two screws securing the gyro to the gyro housing.

Gyro

Gyro Housing

Gyro Cable Gyro Installed

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Gyro Screws

Gyro Replacement Instructions

9. Gently remove the gyro and gyro cable, ensuring no cables are dislodged from the main PCB.

Gyro

Gyro and Gyro Cable Removal

10. Insert the new gyro and gyro cable into the gyro housing. Then secure the gyro with the two gyro screws that you removed earlier. Be sure to route the gyro cable through the gyro housing and under the RF cable as shown below.

Gyro Gyro Housing

Screws

RF Cable Gyro Cable

Main PCB

Gyro Cable Routing

54-0366 Rev. A

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TracVision C3/R5

11. Connect the gyro cable connector to the main PCB. J5 Gyro Cable Connector

J11 J9

J4

Main PCB J2 J1

Gyro Cable Connector

When replacing the main PCB cover, ensure that no cables are damaged or pinched by the PCB cover edges.

12. Gently replace main PCB cover, ensuring no cables are damaged by the edges of the cover. Then using a Phillips-head screwdriver, secure the main PCB cover using the four screws that you removed earlier.

Main PCB Cover

Main PCB Screw

Main PCB Cover

Be sure to apply a small amount of the supplied Loctite threadlocker to the threads of the elevation motor shaft nut.

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13. Apply a small amount of the supplied Loctite threadlocker to the threads of the elevation motor shaft nut.

Gyro Replacement Instructions

14. Extend the elevation motor shaft by rotating it clockwise, then insert the motor shaft into the connecting rod.

Connecting Rod

Elevation Motor Shaft Nut

Elevation Motor Shaft Nut

15. Using an 11/32" open-end wrench, tighten the elevation motor shaft nut. 16. Reinstall the radome. Then replace the vehicle/ vessel fuse that you removed earlier and connect power to the antenna and receiver.

54-0366 Rev. A

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TracVision C3/R5

Configure the New Gyro The new gyro now needs to be configured. The following instructions explain how to configure the new gyro. This procedure requires a PC with the KVH Flash Update Wizard installed. The Flash Update Wizard is available to KVH-authorized dealers through the KVH Partner Portal at www.kvh.com/partners.

1. Connect one end of a PC serial data cable to the DB9 maintenance port, located on the switchplate. Connect the other end of the data cable to the serial port on your PC.

ON

If your computer does not have a DB9 serial COM port, you can use the following USB-to-RS232 adapter:

OFF

Maintenance Port

TracVision Switchplate

IOGear Part # GUC232A (visit www.iogear.com)

2. Double-click the KVH Flash Update Wizard shortcut on your PC’s desktop to start the Flash Update Wizard. You do not need to flash the antenna to configure the new gyro; simply enter commands in the Flash Update Wizard’s "TracVision Antenna Comms" window.

Enter Commands

Data Display TracVision Antenna Comms Window

3. Set the switchplate’s POWER switch to the ON (up) position, then turn on the receiver(s). Wait one minute for system startup. 4. Type HALT then press Enter. 5. Type DEBUGON then press Enter.

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Gyro Replacement Instructions

6. Type =LSTEST to begin the limit switch test. Wait for the test to pass or fail. If the test fails, contact KVH Technical Support. 7. Type =CALGYRO then press Enter. If a “Scale factor out of range - bad gyro” message appears, contact KVH Technical Support. 8. The antenna will restart; wait one minute for the antenna to initialize. 9. Type ZAP then press Enter to restart the antenna. The gyro replacement process is complete! Be sure to return the old gyro to KVH.

54-0366 Rev. A

IMPORTANT! Before returning the gyro, be sure to obtain an RMA number from KVH’s Technical Support and write the number clearly on the outside of the box. Shipments received without an RMA number will be returned to you at your expense.

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