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CHAPTER 4 SERVICE PROCEDURE
4.8.1 Jewels
Some upgrades or product modifications may require you to replace the jewel on the front
panel. The following procedure describes how to replace the jewel.
a. TO REPLACE FRONT PANEL JEWEL
1. Remove the front panel (see page 4-7).
Now you have access to the tabs on the back side of the jewel.
2. Remove the jewel from the front panel.
Squeeze the tabs on the back side of the jewel while pushing it out of its slot.
3. Insert the tabs of the new jewel into the empty slots in the front panel and press down
until it snaps into place.
The jewel's lower tabs are larger than the upper tabs. The lower tabs fit into the lower
slots.
4. Replace the front panel (see page 4-8).
5. Reassemble the iR-M2 (see page 4-13).
4.8.2 Buttons
The Control Panel buttons are located in cutouts in the front panel and are designed to fit
only one way. When correctly positioned, the buttons make contact with the button pads on
the front of the user interface board and provide users with manual status/control capability
from the Control Panel.
a. TO REPLACE FRONT PANEL BUTTONS
1. Remove the front panel (see page 4-7).
2. Remove the user interface board (see page 4-20).
3. Place the front panel buttons in the appropriate cutouts.
Notice that the buttons fit only one way in the cutouts.
4. Replace the front panel (see page 4-8).
5. Reassemble the iR-M2 (see page 4-13) and verify its functionality (see the connection
verification steps described on page 4-15).
4-54
COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
NM-PDL REV.0 JULY 2002
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