Canon ColorPASS-GX400, Инструкция по установке и обслуживанию

Страница: 63 / 149

S
ERVICE
P
ROCEDURES
63
T
O REMOVE THE MOTHERBOARD
N
OTE
: This procedure assumes that you have already performed the procedure “To remove
boards and cables from the motherboard” on page 62 .
1 Remove the hard disk drive bracket, with hard disk drive attached (see page 92 ).
Remove the screw that attaches the bracket to the shelf. Removing the hard disk drive and
hard disk drive bracket provides the clearance necessary for removing the motherboard. You
must also detach the hard disk drive power cable to remove the hard disk drive.
2 Remove the nine mounting screws securing the motherboard to the chassis (for screw
locations, see Figure 21 on page 61 ).
3 Remove the motherboard from the chassis.
Lift the edge of the motherboard (see Figure 22 ). Make sure that the back panel connectors
on the motherboard clear the chassis while you lift it out of the chassis. Do not touch the
contacts and avoid using excessive force.
During service, avoid using excessive force and always place the motherboard on a grounded,
non-metallic, static-free surface. Never allow any metal to touch the solder contacts on the
underside of the motherboard, especially beneath the battery socket. Improper handling can
short-circuit and permanently damage the motherboard.
F
IGURE
22:
Removing the motherboard
Lift the edge of the
motherboard and remove
it from the chassis.