Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 781)

Section 15B
Replacement Procedures
15B-25
To replace the monochrome CRT:
1. Turn OFF all power to the control.
ATTENTION: To guard against electrical shock hazards, never
make connections or disconnections at the AC distribution
network unless the main AC disconnect switch is open and
locked.
2. Remove the cover on the back of the monochrome operator panel.
3. Disconnect the cable running from the main power supply to the
operator panel power supply.
4. Disconnect the cable running from the operator panel power supply to
the monochrome CRT.
5. Remove the 4 screws on the sides of the monochrome CRT enclosure.
6. Slide the monochrome CRT out of the monochrome operator panel
enclosure and replace it with a new monochrome CRT.
7. Replace and tighten the 4 screws, reconnect the cable running from
the operator panel power supply to the monochrome CRT, replace the
rear cover, then reconnect all additional cables and modules.
To replace the color CRT:
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. Remove the cover that covers the rear of the color operator panel.
3. Disconnect the cable running from the main power supply to the
operator panel power supply.
4. Disconnect the cable running from the color CRT to the operator
panel power supply at the molex connector.
15B.9
Replacing the Monochrome
CRT
15B.10
Replacing the Color CRT