NEC Express 5800/120Lg, Service Manual

Page: 81 / 204

Disassembly and Reassembly 4-15
Figure 4-7. Raising the Locking Lever
11.
Aligning the pins of the CPU with the socket, insert the CPU slowly and
gently into the socket. See Figure 4-8.
IMPORTANT
:
Be aware of CPU direction. Pin layouts on two corners
among four differ from others to prevent an incorrect insertion. Confirm
the pin mark and pin layout on the socket, and insert the CPU correctly.
Figure 4-8. Installing a CPU
12.
Push the CPU lightly to the socket, and push down the lever to secure the
CPU. See Figure 4-9.
Pin mark
Retention