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Installation and Maintenance
Volume
Octel 200/300
S.4.1
PB60019
−
01
Removing the OCC
The OCC assembly should always be moved as a unit that includes the OCC integrated circuit and the
socket in which it is mounted. The two parts of the assembly should never be separated.
1. Perform the procedure in the Removing the Power Supply section.
2. After the power supply is removed, remove the CPU and the VCU cards. Follow the instructions in
the Printed Circuit Assembly Replacement section.
3. Locate the OCC assembly next to the top power supply connector on the motherboard. Using an IC
puller,
carefully
pry the entire OCC assembly from the motherboard. If a pin is broken or bent
during removal, a new OCC must be ordered.
4. Place the OCC assembly on an antistatic foam pad.
Installing the OCC
To install the OCC assembly, use the following procedures:
1. Install the new OCC assembly next to the top power supply connector on the motherboard. Pin 1 on
the OCC assembly must be up.
2. Replace the CPU and the VCU cards, as described in the Printed Circuit Assembly Replacement
section of this chapter.
3. Replace the PSU, as described in the Power Supply Unit Replacement section of this chapter.
4. Turn ON the message server, and test for correct operation.
5. Close and lock the door of the cabinet.
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