Polycom DOC2238A 사용자 설명서

The fans are not hot swappable and cannot be replaced with the system 
running. Fans are located on the rear pane of the MGC+50. Use the following 
procedure to replace a faulty fan:

1.

Exit the MGC+ Manager application, turn off the MCU and unplug it 
from the AC outlet.

2.

Using a standard Phillips screwdriver, remove six spring-loaded screws 
from the fans cover on the MCU’s rear panel. 

Lower the fans cover carefully without tearing the cables to gain access 
to its inner side.

3.

Disconnect the two connectors of the power supply cable from the inside 
of the fan panel. At this point, the fan panel is loose and it may be 
removed.

4.

From the inside of the fan panel, push the connector panel mount locks 
of the faulty fan connector and push the connector to the front of the 
panel.

5.

Unscrew the four screws on the Fans front panel that secure the faulty 
fan to the fan panel.