NEC 92001 User manual

124i Power Supply (P/N 92001) Installation
Instructions
Carefully follow these instructions when replacing the 124i Power Supply.
!! Warning !!
Unplug each cabinet’s power cord before going to Step 1 below. Hazardous
voltages exist inside the cabinet while the power cord is plugged in.
To remove the old 124i power supply:
Step 1 Following the instructions in your system’s hardware manual, remove the cabinet cover.
●Unscrew the two captive screws that secure the bottom of the cabinet cover.
●Lift up the bottom of the cover, then slide the cover up to remove it.
Step 2 Remove the six power supply mounting screws and the screw securing the ground wire.
- Over -
92001-66
Ground Wire
Power Supply Mounting
Screws (6 places)
Figure 1 Removing the Mounting Screws

Step 4 Disconnect the power sup-
ply DC output connector
(see Figure 3).
To install the new 124i power supply:
Step 1 Using the new power supply, reconnect the power supply DC output connector (see Figure 3).
Step 2 Reconnect the power supply AC input connector (see Figure 2).
Step 3 Reinstall the six power supply mounting screws and the screw securing the ground wire (see Figure 1)
Step 4 Reinstall the cabinet cover.
Step 5 Plug in the cabinet power cords.
92001 - 67
Power Supply
AC Input Connector
92001 - 68
Power Supply DC
Output Connector
Step 3 Carefully lift up the power
supply PCB and disconnect
the AC input connector (see
Figure 2).
Figure 2 Disconnecting the AC Input
Figure 3 Disconnecting the DC Output
Part No. 92001INS02
November 2001 Printed in U.S.A.
NEC America, Inc., Corporate Networks Group
4 Forest Parkway, Shelton, CT 06484
TEL: [phone] FAX: [phone]
cng.nec.com