Service manual

4. DISASSEMBLY AND ASSEMBLY
Service Manual CNS-9701 4.9
13. Release the 4 hooks of the CPU fan by pulling the 2 levers near the CPU fan
upward. Remove the CPU fan and heat sink from the motherboard.
NOTE in Assembling the Main Unit
To attach the CPU fan to the motherboard, check the following.
- Appropriate volume of silicone grease is on the bottom of the
heat sink which faces the top of the CPU.
- The 2 levers near the CPU fan are pulled upward.
Latch the 4 hooks of the CPU fan on each catch of the lower housing
for the CPU fan and heat sink, and put the 2 levers back to the original
position.
14. Pull the lever of the CPU socket upward as shown below and remove the CPU
from the motherboard.
NOTE in Assembling the Main Unit
- To attach the CPU to a new motherboard, check the correct
direction of the CPU and check that the lever of the CPU socket
is pulled upward.
- After checking that the CPU is correctly inserted into the CPU
socket, put the lever back to the original position.
15. Replace the motherboard with a new one. Check that the new motherboard has
the same jumper settings as the old one. Assemble the main unit by reversing the
above procedure. Turn on the main unit and check the operation using the display
unit connected to the main unit.
Lever
Lever
Lever of the CPU socket
Catches