Canon imagePRESS Server G250 V2, Service Manual

Page: 33 / 99

• All boards installed on the motherboard
• All cables connected from other components to the motherboard (these include both motherboard power cables, chassis fan
cable, HDD data cable, 10-pin power button cables, and service board cable)
IMPORTANT:
Follow standard ESD precautions while handling the motherboard and all components. For details, see “Tools you will
need” on page 3 .
● To remove motherboard components from the motherboard
1. Access and open the imagePRESS Server , as described on “Accessing the imagePRESS Server” on page 18 .
2. Remove the printer interface board from the motherboard (see “To remove the printer interface board” on page
21 ).
3. Remove the following cables attached to the motherboard:
• Chassis fan cable
• HDD data cable
• 4-pin power cable
• 24-pin power cable
• Service board cable
• 10-pin power button cable
For the location of each connector on the motherboard, see “To check cable connections” on page 19 .
● To remove the motherboard
IMPORTANT:
Follow standard ESD and other safety precautions when handling the motherboard. Do not touch the contacts and avoid
using excessive force. Place the motherboard on a grounded, antistatic surface.
1. Remove the six mounting screws that secure the motherboard to the base of the chassis (see “Motherboard
jumpers” on page 25 ).
To minimize tension on the motherboard, loosen all the screws partially before removing any one screw completely.
3. REPLACING PARTS
27