Pcb Removal And Replacement - KVH Industries TracVision L3 Owner's Manual

5.4.1 PCB Removal and Replacement

Estimated Time to Repair:
The microprocessor PCB assembly is protected by a cover
fastened to the rotating plate –
removed to gain access to the main power fuses and the PCB
assembly.
1. Using needle-nose pliers, remove the E-ring from
one end of the connecting rod –
2. Remove the connecting rod by sliding it off the
bracket.
3. Fully retract the elevation axis motor shaft
– Fig. 5-5.
Elevation Axis
Motor Shaft
Linear Actuator
4. Remove 6 pan head screws from the PCB cover
flanges.
5. Remove the PCB cover. To get the necessary
clearance, rotate the linear actuator up 90º while
lifting the PCB cover – Fig. 5-5.
6. Remove all cable connectors from the PCB.
Figure 5-6 on the following page illustrates the
PCB arrangement and connector locations.
54-0157 Rev. G
⁄ hour
1
2
Fig. 5-1. The cover must be
Fig. 5-2.
PCB Cover
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
Removing the PCB Cover
TracVision L3/S3 is equipped with
two 5x20 mm, 3.15-amp, 250-volt
fast-blow fuses, which are mounted
on the PCB. To access and replace
one of the fuses, remove the PCB
cover.
5-5