Pcb Removal And Replacement - KVH Industries TracVision Cruiser User Manual

5.4.1 PCB Removal and Replacement

Estimated Time to Repair:
The microprocessor PCB assembly (Item 1) is protected by
a cover (Item 21) fastened to the rotating plate (Item 11) –
Fig. 5-1. The cover must be removed to gain access to the
main power fuse and the PCB assembly.
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 cable connectors from PCB.
5. The PCB is mounted to the rotating plate with
10 pan head screws. Figure 5-5 illustrates the
PCB arrangement and connector locations.
To
From
IRD LNB
J3
J3 J5
6. Reverse this process to install the replacement
PCB. Reinstall all cable connectors removed in
Step 4.
7. Carry out all calibration procedures for the
antenna gyro and the LNB (Sections 5.4.3-5.4.4).
54-0144 Rev. C
⁄ hour
1
2
Pan Head Screws
J2
J1
Maintenance
When carrying out maintenance
on the PCB, be sure to not 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.
Figure 5-5
PCB Connector Locations –
Rear View (not to scale)
TracVision Cruiser is equipped with
a 5x220 mm, 4-amp, 250 volt fast-
blow fuse, which is mounted on the
PCB. To access and replace the
fuse, remove the PCB cover.
5-5