Removal And Replacement; Before You Begin Removal Procedures - HP 3000 Series Handbook

For HP Internal Use Only
Removal and Replacement
This chapter provides removal and replacement procedures of the
• Chassis
• Cabinet
Quick reference removal procedures are also provided for the major components of the chassis.
It also provides assembly and disassembly procedures for the
• 3.5-inch Hard Disk
• 3.5-inch DDS-Format DAT Drive
• CD-ROM
• Quarter-inch Cartridge Tape Drive ( QIC)
• 8mm Tape Drive
• Floppy Disk Drive
Before You Begin Removal Procedures
Warning
Caution
'
Caution
'
Hazardous voltages are present inside the cabinet. To prevent shock, turn off
DC power using the front panel DC On/Off switch AND disconnect the AC power
cord from the outlet before opening the unit.
Wait one minute before disassembling the system.
Handle all FRU s carefully. Dropping or otherwise jarring the FRU s will
damage them.
Follow ESD procedures. Always use an ESD grounding wrist strap during
service.
Do not mix thread-forming TORX chassis screws (Figure 8-1) and peripheral
mounting TORX screws when you disassemble the system. They are not
interchangeable. If thread-forming TORX chassis screws are inserted where
peripheral mounting TORX screws should be used, they will damage the
internal peripherals.
LG200185 _ 050
Figure 8-1. Thread-forming TORX Chassis Screw
Replaceable Parts 8-7