Canon FY8-13HW-000 Service Manual page 6

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
iv
4.2
4.3
4.4
4.5
4.6
4.7
COPYRIGHT © 2002 CANON INC.
4.1.2 TO REPLACE THE USER
INTERFACE BOARD IN
THE FRONT
PANEL ........................ 4-21
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
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
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
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
Hard disk drive .................... 4-44
4.6.1 Proper handling ........... 4-44
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
2000 2000 2000 2000 NM-PDL REV.0 JULY 2002