Service manual

4. DISASSEMBLY AND ASSEMBLY
Service Manual CNS-9701 4.11
Replacing the Hard Disk
Replacing the Fans
Before disassembling the main unit to replace the hard disk with a new one,
perform the procedure described in “Hard Disk Replacement Flow” in Section 2.
1. After removing the disk case from the main unit according to the “Replacing
the Motherboard” steps 1 to 6, remove the 4 screws which secure the hard disk
to the disk case. Replace the hard disk with a new one.
2. Check that the jumper setting of the new hard disk is shown below. This setting
which shows “Device0 (Master) in the IBM hard disk IC35L040AVER07 is
the factory default setting. Windows2000 and CNS system software are
installed in the hard disk at the factory.
Replace the graphic board with a new one. Refer to “Replacing the Motheboard
steps 1 and 2.
Note that you can use another graphic board to temporarily solve the display
problem until the new board arrives because there are two of the same graphic
boards in the main unit.
Replacing the Graphic
Board
3. Assemble the main unit by reversing the above procedure.
There are five fans in the main unit.
- Fan attached on the rear panel
Remove the 2 screws which secure the fan to the rear panel and replace the fan
with a new one.
- Fan attached inside the power supply unit
The fan in the power supply unit is not replaceable. A fan failure requires
replacement of the power supply unit. Refer to “Replacing the Power Supply
Unit” section.
- Fan attached to the CPU on the motherboard
Replace the fan with a new one according to “Replacing the Motherboard”.
4. Put the JP14 jumper back to the original position (pins 1 and 2). Connect the
power supply cable to the motherboard and assemble the main unit.
5. Turn on the main unit and display unit. The self-check program runs. Press the
Delete key on the keyboard while the self-check program is running. The BIOS
setting screen appears.
6. Set the BIOS settings according to the “BIOS Default Setting (Vorax5001)” list
in “How to Recover the BIOS Initial Settings” in Section 2 “Troubleshooting”.