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Hardware Maintenance (9820-45M)
12-3
9820-A2-GB20-20
June 2000
Replacing the Front Panel Assembly
The System FAN LED on the front panel turns on when one or more of the front
panel fans has failed. Replace the front panel assembly as soon as possible after
this occurs. Refer all service to qualified personnel.
The procedure may be performed while the unit is running.
" Procedure
To replace the front panel:
1. Loosen the captive screws holding on the front panel.
!
WARNING:
The fans continue to run until the fan power cable is removed. Keep
your hair and clothes away from the fan blades.
2. Carefully pull the front panel toward you. Verify that at least one of the fans
has failed.
3. Remove the fan power cable and LED ribbon cable, and set the old front
panel assembly aside.
!
WARNING:
Each fan starts spinning as soon as the fan power cable is
reconnected. Keep your hair and clothes away from the fan blades.
4. Take the new front panel and connect the LED cable, then connect the fan
power cable. Verify that all four fans are running.
5. Replace the front panel and tighten the captive screws. Verify that the FAN
LED is turned off.
CAUTION:
Do not leave the front panel assembly off the unit for extended periods,
or the unit will overheat.