Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 782)

Section 15B
Replacement Procedures
15B-26
5. Remove the 4 mounting screws on the sides and the 2 mounting
screws on the bottom of the color CRT enclosure.
6. Slide the color CRT out of the color operator panel enclosure and
replace it with a new color CRT.
7. Replace and tighten the 6 mounting screws, replace the rear cover,
then reconnect all cables and modules.
To replace the monochrome panel keyboard assembly:
1. Turn OFF all power to the control.
ATTENTION: Make sure that all cables are properly attached
to the correct terminals. Failure to do so may result in injury to
personnel, or damage to the control or machine.
2. Disconnect the flat cable running from the keyboard I/O ring
interface to the monochrome panel keyboard assembly.
3. Disconnect the keyboard ground wires, by removing the screws on
the keyboard.
4. Remove the six keyboard mounting nuts on the back of the panel.
Install the new keyboard.
Important: The CRT mounting screws must be loosened to allow
the CRT to be pushed up against the bezel gasket for proper seal
when the new keyboard is installed.
5. Move the CRT up against the bezel and tighten the mounting screws.
15B.11
Replacing the Keyboard
Assembly for the
Monochrome Operator
Panel