User manual

6-16 TVC-500 Operation Manual
020-100539-01 Rev. 1 (08-2010)
Section 6: Chassis Component Replacement
6.13 CPU Heatsink
Removal and replacement of the CPU
heatsink is described here.
NOTE: Only one CPU is installed in
the TVC-500 Controller, even though
the system board is capable of
supporting dual processors.
6.13.1 Removal
1. Ensure the TVC-500 controller is
powered down. Refer to Section 6.2
Powering Down the Controller.
2. Remove the side access panel
(6.3.1) if not already removed.
3. Remove the airflow guide (6.4.1) if
not already removed.
4. Remove the memory fans (6.10).
5. Slowly and evenly loosen one pair
of diagonally opposite screws (1 in
Figure 6-30) from the CPU until
shanks disengage from the system board. Loosen the remaining pair (2 in Figure 6-30).
NOTICE! Do not fully loosen one
screw. and then move to the next.
Instead, loosen all screws a little at a
time, ensuring that the CPU remains
level.
6. Remove the heatsink fan cable from
the system board (circled in Figure
6-31).
7. Carefully lift and remove the
heatsink.
8. Use alcohol and a soft cloth to clean
the thermal interface residue from
the CPU and the heatsink, allowing
the alcohol on the CPU and heatsink
to dry completely.
6.13.2 Replacement
1. Perform one of the following tasks:
• If re-installing the original heat-
sink, apply thermal compound to the center of the CPU top surface.
Figure 6-30 CPU Heatsink Removal
Figure 6-31 CPU Heatsink Fan Cable