Service manual

Chapter 6 Replacing Parts
88
3. Disconnect the power cables.
WARNING The power supplies will continue to provide standby current to the NetServer until
the power cable is disconnected.
4. If you have a rack-mounted LH 3000r, consider removing the signal cables from the rear of the
enclosure before extending the enclosure on the slides (if you don't have a cable management
arm). If necessary, label the signal cables to support re-connecting them.
5. Remove the top and bottom covers (rack-mount orientation) or the left and right covers
(pedestal version).
CAUTION Wear a wrist strap and use a static-dissipating work surface connected to the
chassis when handling components. Ensure that the metal of the wrist strap
contacts your skin.
6. Remove hardware components to gain access to the Power Management/Interconnect board:
• System board
• I/O board
7. Disconnect power and signal cables from the Power Management/Interconnect board.
IDE
FLOPPY
I/O BOARD
CONNECTORS
SYSTEM BOARD
CONNECTORS
CONTROL
PANEL
MASS STORAGE
POWER
CONNECTORS SHOWN AS DASHED
A
RE ON THE REVERSE SIDE
MASS STORAGE
POWER
PS0
PS1
PS2
PS
CNTRL
PS
CNTRL
PS3
FAN PAIR A
POWER
POWER TO
BATTERY BACKUP
FAN PAIR B
POWER
FAN
POWER
CHASSIS
REAR
CHASSIS
FRONT
Power Management/Interconnect Board Connectors
8. Remove the eight screws from the Power Management/Interconnect board.