Replacement
Attach the new power distribution board to the bracket, and replace in reverse order.
Attention: To prevent damage to cards in the drawer, refer to drawing on “10 EIA-Unit
I/O Drawer Cable Routing” on page 42, and ensure the cables are routed correctly.
Media Devices (CD-ROM Drive, Tape Drive, Diskette Drive)
Before performing these procedures, read “Safety Notices” on page xiii.
CAUTION:
Do not open the drive; no user adjustments or serviceable parts are inside.
CAUTION:
A class 3 laser is contained in the device. Do not attempt to operate the drive
while it is disassembled. Do not attempt to open the covers of the drive as it is
not serviceable and is to be replaced as a unit.
Notes:
1. This procedure is the same for any media device that is supported by this drawer.
2. For additional information regarding the operation of the media drives, see the
installation and user’s guide provided with the drives.
Removal
1. If the rack unit has a front door, open it.
520 Service Guide
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