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Replacing the Main PCB

1. With a PC connected to the ADCU’s maintenance

port, apply power to the antenna unit.

2. Record the system serial number for later re-entry

(the serial number is listed at the beginning of the

startup sequence, as shown in Appendix F on

page 143).

3. Disconnect power from the antenna unit and the

IRD.

4. Remove the PCB cover, as explained in “Removing

the Main PCB Cover” on page 106.

5. Disconnect all Molex connectors from the main PCB

(see Figure 5-3).

Maintenance

54-0147

107

Main PCB

Power/Data

Fuses

Azimuth

Motor

Elevation

Motor

Azimuth/Elevation

Limit Switches

to RF PCB

Antenna Gyro

Cable Wrap

(External Sensor)

Figure 5-3

Main PCB Connector Locations

(Rear View)

Refer to

Section 4.6, “Computer

Diagnostics” on page 98

for

complete details on connecting a

PC to the system via the

maintenance port.

KVH Industries TracVision G4 User Manual

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