Procedure 5 - Removing And Replacing Crt/Bezel Adapter Assembly - Control Data Corporation CDC CC63X Hardware Maintenance Manual

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4. Remove the two 7 mm (9/32) screws from the rear connector
panel as shown in figure 6B-4.
5. Grasp the flange at the top of the backpanel and pull it
straight back, sliding the logic drawer assembly out of
the display terminal housing, while holding it steady.
Ensure that no cables interfere with removal.
6. To reinstall the logic drawer assembly, position the
drawer track as shown in figure 6B-4.
7. Slide the drawer assembly partially into the terminal
enclosure (hood) while pushing down on the back of the
drawer. This will pull up the drawer track guide
enabling it to be seated in the notch provided in the
bezel adapter assembly (figure 6B-4).
8. When the drawer track guide is fully engaged, raise the
back of drawer up to clear ground wire from hood to CRT
chassis, and also to prevent catching the LEDs in base of
option card holder.
NOTE
If a graphics board and touchpanel
are installed, ensure that connec-
tion between them can be made when
drawer is in place.
9. Continue sliding the logic drawer assembly until it is
fully in place while ensuring that the RESET button
aligns with its bezel assembly cutout.· Ensure that no
cables are stressed as drawer is inserted.
10. Replace screws removed in step 3. Ensure shorter screw
is installed as shown in figure 6B-4. Connect touchpanel
ribbon cable; press connector firmly in place to seat it
properly. Plug in keyboard cord removed in step 1.
11. Replace access lid if removed (procedure 3).
12. If the terminal is a CC634-B/CC638-B unit, push down the
power-cord interlock latch.
13. Reconnect power cord to rear of terminal.
Procedure 5 - Removing and Replacing CRT/Bezel Adapter Assembly
Remove and replace the CRT/bezel adapter assembly as follows:
1. Remove the logic drawer assembly (procedure 4, steps 1
through 5). Remove ground wire at rear of monitor shield.
62940034 E
6B-9
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