COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
NM-PDL REV.0 JULY 2002
iv
CHAPTER 4 SERVICE PROCEDURE
1
Before Disassembling the Unit .... 4-1
1.1
Overview ............................... 4-1
1.2
System software .................... 4-1
1.3
Accessing Internal
Components .......................... 4-3
1.3.1
TO SHUT DOWN THE
iR-M2 ............................ 4-3
2
Externals ....................................... 4-4
2.1
TO OPEN THE iR-M2 ......... 4-4
2.2
Accessing Front Panel
Components .......................... 4-7
2.2.1
TO REMOVE THE
FRONT PANEL ............ 4-7
2.2.2
TO REPLACE THE
FRONT PANEL ............ 4-8
3
Checking internal connections ..... 4-9
3.1
TO CHECK BOARD AND
CABLE CONNECTIONS .... 4-9
3.2
TO CHECK MOTHERBOARD
DIMM CONNECTIONS .... 4-12
3.3
Restoring and verifying func-
tionality after service .......... 4-13
3.3.1
TO REASSEMBLE THE
iR-M2 .......................... 4-13
3.3.2
Verifying
functionality ................ 4-15
3.4
Removing and replacing
boards .................................. 4-16
3.5
Copier interface board ........ 4-17
3.5.1
TO REMOVE THE
COPIER INTERFACE
BOARD
..................................... 4-18
3.5.2
TO REPLACE THE
COPIER INTERFACE
BOARD ....................... 4-18
4
User interface board ................... 4-19
4.1
User interface board ............ 4-19
4.1.1
TO REMOVE THE USER
INTERFACE BOARD
FROM THE FRONT
PANEL ........................ 4-20
4.1.2
TO REPLACE THE USER
INTERFACE BOARD IN
THE FRONT
PANEL ........................ 4-21
4.2
Motherboard ....................... 4-22
4.2.1
Removing the
motherboard ................ 4-22
4.2.2
TO REMOVE BOARDS
AND CABLES FROM
THE MOTHER
BOARD ....................... 4-24
4.3
Replacing the
motherboard ........................ 4-26
4.3.1
TO REPLACE THE
MOTHERBOARD ...... 4-26
4.3.2
TO REPLACE BOARDS
AND CABLES ............ 4-27
4.3.3
Replacing parts on the
motherboard ................ 4-28
4.3.4
DIMM ......................... 4-28
4.4
To Replace a DIMM ........... 4-29
4.4.1
Motherboard CPU ....... 4-30
4.4.2
TO REMOVE A
CPU ............................. 4-31
4.4.3
TO REPLACE A
CPU ............................. 4-32
4.4.4
Motherboard battery .... 4-34
4.4.5
Motherboard
jumpers ........................ 4-35
4.4.6
BIOS Chip ................... 4-35
4.5
Fans ..................................... 4-37
4.5.1
Front fan ...................... 4-37
4.5.2
Back panel fan ............. 4-39
4.5.3
Power Supply .............. 4-40
4.5.4
Removing and replacing
the power supply ......... 4-42
4.6
Hard disk drive .................... 4-44
4.6.1
Proper handling ........... 4-44
4.7
CD-ROM drive ................... 4-48
4.7.1
TO REMOVE THE
CD-ROM DRIVE ........ 4-49
4.7.2
TO REPLACE THE
CD-ROM DRIVE ........ 4-50
