5-5
Maintenance
54-0149 Rev. B
5.4.1 PCB Removal and Replacement
Estimated Time to Repair:
1
⁄
2
hour
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.
6. Reverse this process to install the replacement
PCB. Reinstall all cable connectors removed in
Step 4.
7. Carry out the LNB calibration procedure
(Section 5.4.3).
Figure 5-5
PCB Connector Locations –
Rear View (not to scale)
J5
J3
J1
1
J9
J2
J1
J4
Fuse
J3
To
IRD
From
LNB
Pan Head Screws
TracVision SA 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.
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.
