Dc Controller Pcb - Canon iR5000 Service Manual

5.4 PCBs

5.4.1 DC Controller PCB

1) Remove the rear upper cover.
2) Disconnect the 26 connectors, and re-
move the seven screws [1]; then, detach
the DC controller PCB [2].
Keep the following three points in mind when replacing the PCBs:
• Be sure to transfer the six EEP-ROMs from the old to new PCBs; at
that time, be sure to refer to the color of each round label attached to the
EEP-ROM for correct transfer.
• Be sure to enter the values indicated on the label [3] on the new PCB in
service mode by making the following selections:
COPIER>ADJUST>HV-TR>D-PRE-TR
COPIER>ADJUST>HV-TR>D-HV-TR
COPIER>ADJUST>HV-SP>D-HV-SP
COPIER>ADJUST>DEVELOP>D-HV-DE
• Be sure to transfer the shorting connector [4] of J303 on the PCB from
the old to new PCB. (Keep in mind that failure to do so will disable the
control panel indication.)
COPYRIGHT © 2000 CANON INC.
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CHAPTER 7 EXTERNALS AND CONTROLS
Brown
Yellow
(IC104)
Blue
(IC109)
(IC127)
J303
[3] White (IC130)
F07-504-02
2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
[1]
F07-504-01
Red (IC105)
Green (IC110)
[4]
[2]
[1]
7-21 P