Replacing The Motherboard - Canon ColorPASS-Z20e Service Manual

CHAPTER 4 DISASSEMBLY/ASSEMBLY

5.6.2 Replacing the motherboard

This section includes the procedures required to replace the ColorPASS motherboard.
Spare motherboards ship without memory, CPU, or the BIOS chip. The memory, CPU, and
BIOS chip from the old board will need to be installed on the replacement motherboard.
a. To Replace the Motherboard
1. Place the motherboard in the tray and insert the motherboard so that the back panel con-
nectors on the motherboard fit into the cutouts in the back of the tray. Make sure that the
clip in the tray fits over the USB connector.
2. Align the mounting holes in the motherboard with the standoffs in the tray.
3. Replace the six motherboard mounting screws that attach the motherboard to the tray.
4. If you replaced the motherboard with a new board, replace the following components on
the board:
• Memory (see page 4-25)
• CPU, heatsink, and CPU fan (see page 4-26)
• BIOS chip (see page 4-27)
b. To Replace Boards
1. Replace the following boards in the motherboard:
• SCSI board in connector PCI1
• Video board in connector PCI2
• UIB board in connector PCI3
• If the Token Ring board is installed, reseat it in connector PCI4
• Ethernet board in connector PCI5
2. Reseat any option boards installed in remaining connectors on the motherboard.
When replacing boards, slide them straight into the board guides. As you plug the
boards into the connectors on the motherboard, make sure that the board connectors are
properly aligned with the connectors on the motherboard. The connectors on the boards
are keyed to fit only one way on the motherboard.
c. To Replace the Motherboard Cables
1. Reseat the power supply cable to motherboard connector PWR CON.
2. Connect the HDD cable to connector PIDE on the motherboard.
3. Connect the back panel fan cable to connector CFAN on the motherboard.
4-20
COPYRIGHT© 2000 CANON INC. 2000 2000 2000 ColorPASS-Z40e/Z20e REV.0 AUG. 2000