Compaq notebook m300 stripdown User Manual

							Removal and Replacement Procedures    5-1
chapter
 
5
REMOVAL AND REPLACEMENT
PROCEDURES
5.1  Serial Number
The computer serial number should be reported to Compaq when requesting
information or ordering spare parts. The serial number is located on the bottom of the
computer (Figure 5-1).
Figure 5-1.  
Serial Number Location 
						

							5-2    Removal and Replacement Procedures
5.2  Disassembly Reference Chart
Use the chart below to determine the section number to be referenced when removing
components from the computer.
5.3  Disconnecting the Computer from the Mobile Expansion Unit
5.4  Disconnecting the Computer
5.5  Preparing the Computer for Disassembly
5.6  Battery Packs
Removing the Battery Pack
Replacing the Battery Pack
5.7  Hard Drives
Removing a Hard Drive
Inserting a Hard Drive
5.8  PC Cards
Removing a PC Card
Inserting a PC Card
5.9  Modem or Modem/NIC Card
5.10  Real Time Clock Battery
5.11  Keyboard
5.12  Memory Expansion
Removing Memory Expansion Boards
Installing Memory Expansion Boards
5.13  Switch Cover
5.14  Display Assembly
5.15  Top Cover with TouchPad
5.16  Voltage Converter Board
5.17  Modem Connector Board
5.18  PC Card Connector
5.19  Processor/System Board Assembly
Figure 5-2.
  Disassembly Reference Chart 
						

							Removal and Replacement Procedures    5-3
5.3  Disconnecting the Computer from the Mobile
Expansion Unit
1.
 Turn off the computer.
2.
 Close the display.
3.
 Turn off and disconnect all external devices connected to the computer.
4.
 On the mobile expansion unit, press the docking release button 
 to release the
expansion unit from the computer (Figure 5-3).
5.
 Lift the rear end of the computer to disconnect it from the computer expansion
connector 
.
6.
 Pull the computer away from the mobile expansion unit tabs.
Figure 5-3.  
Disconnecting the Computer from the Mobile Expansion Unit 
						

							5-4    Removal and Replacement Procedures
5.4  Disconnecting the Computer
1. 
Disconnect the AC power cord from the AC adapter 

 (Figure 5-4).
2. 
Unplug the power cord from the electrical outlet 
.
3. 
Disconnect the AC adapter from the power connector on the left side of computer 
.
Figure 5-4.
  Disconnecting the Computer 
						

							Removal and Replacement Procedures    5-5
5.5  Preparing the Computer for Disassembly
1. 
Disconnect the computer from the mobile expansion unit.
2. 
Shut down the computer.
3. 
Disconnect the AC adapter and all external devices connected to the computer.
4. 
Remove the battery pack (Section 5.6).
CAUTION:
  Failure to disconnect the AC Adapter from the computer and to remove the
battery pack before removing and installing internal components can damage the
equipment.
5. 
Remove the hard drive (Section 5.7).
6. 
Remove all PC Cards (Section 5.8). 
						

							5-6    Removal and Replacement Procedures
5.6  Battery Packs
!WARNING:
  To reduce the risk of injury or damage to the battery pack, do not crush,
puncture, or incinerate the battery pack or short the metal contacts. Do not attempt to open
or service the battery pack.
Removing the Battery Pack
1.
 Shut down the computer.
2.
 Turn the computer upside down.
3.
 Tilt the battery pack so it lies flat.
4.
 Slide in the two battery latches toward each other 

 (Figure 5-5).
5.
 Rotate the battery pack 90 degrees toward the computer 
, and lift up the battery
pack from the computer 
.
Figure 5-5.
  Removing the Battery Pack 
						

							Removal and Replacement Procedures    5-7
Replacing the Battery Pack
!WARNING:
  To prevent damage to the computer, do not insert a battery pack until the
computer is fully reassembled.
1.
 Turn the computer upside down.
2.
 Push the battery pack onto the computer until the contacts connect 
, and rotate the
battery pack 90 degrees toward the back of the computer 
 (Figure 5-6).
3.
 Slide the two battery latches out (away from each other) .
Figure 5-6.
  Replacing the Battery Pack 
						

							5-8    Removal and Replacement Procedures
5.7  Hard Drives
Removing a Hard Drive
Before removing a hard drive, back up all information on the hard drive.
1.
 Shut down the computer.
2.
 Turn the computer upside down.
3.
 Remove the hard drive screw 

 (Figure 5-7).
4.
 Pull up on the front bezel .
5.
 Slide the hard drive out of the bay 
.
Figure 5-7.
  Removing a Hard Drive 
						

							Removal and Replacement Procedures    5-9
Inserting a Hard Drive
1.
 Shut down the computer.
2.
 Turn the computer upside down.
3.
 Pull the bottom half of the bezel down.
4.
 Slide the hard drive into the bay until the connector is seated 

 (Figure 5-8).
5.
 Push the front bezel down .
6.
 Insert the hard drive screw 
.
Figure 5-8.
  Inserting a Hard Drive 
						

							5-10    Removal and Replacement Procedures
5.8  PC Cards
The procedure for removing PC Cards varies with the operating system being used and
with the kind of PC Card being removed.
In Windows 95 or Windows 98—

 If you insert a PC Card while the computer is on, the computer beeps twice when the
card is ready for use.

 If you remove a PC Card while the computer is on, the computer beeps twice when
the card is removed.

 When a PC Card is in the system, the PC Card icon displays on the taskbar.
In Windows NT 4.0 with CardWare from Compaq—

 If you insert a PC Card while the computer is on, the computer beeps three times
when the card is recognized.

 If you remove a PC Card while the computer is on, the computer beeps three times
when the card is removed.

 The PC Card icon displays in the taskbar whether or not a PC Card is in the system.