Compaq hp pavilion ze4100 notebook pc User Manual

							Service Manual Product Information 1-15
  Table 1-9. Functional Structure Description
BootupCPU module
Motherboard
Hard disk drive
Floppy driveMain processor (MMO).
Primary system circuitry, system BIOS.
First source of disk-based startup code.
Second source of disk-based startup code.
ProcessorCPU module
MotherboardMain processor, numeric data processor, L1 and L2 cache.
Primary system circuitry.
MemoryMotherboard
SDRAM moduleVideo RAM (XE4500).
Changeable SDRAM (2 slots), video RAM (XE4100).
PowerBattery
Motherboard
Switchboard PCA
AC adapterPower storage.
AC adapter socket, reset button, lid switch, power supply, power
control circuitry.
Power button
AC-to-DC converter.
DisplayMotherboard
SDRAM module
Display assemblyGraphics controller, video RAM.
Display output, backlight, power converter for backlight.
Hard diskMotherboard
Hard disk driveHard disk controller.
Hard disk mechanism.
Floppy driveMotherboard
Floppy driveI/O controller, floppy connector.
Floppy drive mechanism.
KeyboardMotherboard
Switchboard PCA
KeyboardKeyboard BIOS, keyboard controller.
Power switch, one-touch buttons
Key switches.
PS/2
TouchpadMotherboard
Top caseKeyboard circuitry, keyboard controller, keyboard BIOS.
Touch pad sensor, click buttons, controller (PS/2 output).
AudioMotherboard
Speaker assemblyAudio controller, audio decoder, speaker amplifier, microphone,
external audio jacks, headphone amplifier, audio-off switch.
Speakers.
StatusMotherboard
Switchboard PCA
Top caseLED circuitry, keyboard controller.
Keyboard LEDs.
Main status LEDs.
SerialMotherboard I/O controller, serial connector.
ParallelMotherboard I/O controller, parallel connector.
InfraredMotherboard
IR PCAI/O controller.
Infrared transmitter/receiver.
PS/2 portMotherboard PS/2 connector, keyboard controller.
USBMotherboard Bus controller (South Bridge), USB connector.
S-VideoMotherboard I/O controller, S-video connector (certain models).
Port ReplicatorMotherboard Port replicator logic, port replicator connector (certain models).
PCMCIAMotherboard
PCMCIA socketPCMCIA controller.
PCMCIA connectors.
Wireless LAN
(certain models)Mini-PCI
Antenna PCAs
IR PCAI/O controller, radio, radio frequency circuitry.
Transmit/receive antennas.
On/off switch, indicator light.
LANMotherboard LAN circuitry, bus controller, LAN connector.
ModemMotherboard Modem circuitry (certain models), modem connector. 
						

							Service Manual Removal and Replacement 2-1
2 
Removal and Replacement
This chapter tells you how to remove and replace the notebook’s components and assemblies. The
items marked by 
• in the following table are user-replaceable.
  Table 2-1. Removal Cross-Reference
 
 • 
Assembly, speaker (page 2-12).
Battery, CMOS (page 2-37).
 • 
Battery, main (page 2-4).
 • 
Card, wireless LAN mini-PCI (page 2-6).
Case, bottom (page 2-35).
Case, top (page 2-20).
 • 
Cover, keyboard (page 2-10).
Assembly, display (page 2-17).
 • 
Door, mini-PCI (page 2-9).
 • 
Door, SDRAM (page 2-9).
Doors, PCMCIA (page 2-35).
 • 
Drive, CD/DVD (page 2-16). 
Drive, floppy (page 2-22).
 • 
Drive, hard disk (page 2-7).
 • 
Feet, rubber (page 2-9).
Heatsink (with fan) (page 2-27).
 • 
Keyboard (page 2-13).
 • 
Module, SDRAM (page 2-5).
Module, CPU (page 2-29).
PCA, antennas (page 2-17).
PCA, I/R (page 2-25).
PCA, motherboard (page 2-31).
PCA, switchboard (page 2-13).
 • 
Rubber screw plugs, display (page 2-9).
  Caution
 
Always provide proper grounding when performing repairs. W ithout proper
grounding, an electrostatic discharge can damage the notebook and its
components.
 
Notes
 
Reassembly steps are the reverse of the removal steps. Reassembly notes are included at the end
of each section below.
 
Symbols like these are displayed throughout this chapter to show approximate full-size screw
outlines. You can use these to verify the sizes of screws before you install them. Installing a wrong-
size screw can damage the notebook. (The symbol at the left represents an M2.5 × 4 mm T-head
screw.) 
						

							2-2 Removal and Replacement Service Manual
  Table 2-2. Required Equipment
 • #0 and #1 Phillips screwdrivers, preferably magnetized.
 • Small flat-blade screwdriver.
 • 5 mm nut driver
 
Table 2-3. Recommended Screw Torque Values
Screw Thread SizeTorque (cm-kgf)Torque (in-lbf)
M2 2,0 – 2,5 1.7 – 2.2
M2.5 (hinges) 3,5 – 4,0 3.0 – 3.4
M2.5 (other) 2,5 – 3,0 2.2 – 2.6
M3 2,5 – 3,0 2.2 – 2.6
Standoff, hex 2,5 – 3,0 2.2 – 2.6 
						

							Service Manual Removal and Replacement 2-3
Disassembly Flowchart
The following diagram shows the general “path” you will use when disassembling the notebook to
access any particular component.
  Figure 2-1. Disassembly Flow 
						

							2-4 Removal and Replacement Service Manual
Removing the Battery
(User-Replaceable)
Required Equipment
 • 
None.
Removal Procedure
 • 
Slide the battery’s release latch, then pull the battery out of its compartment.
  Figure 2-2. Removing the Battery 
						

							Service Manual Removal and Replacement 2-5
Removing a SDRAM Module
(User-Replaceable)
The notebook has no system memory built into its motherboard, but has two slots for SDRAM
modules. One slot contains an SDRAM module that was factory installed.
  Note
 
HP Pavilion ze4100, Compaq Evo Notebook 1010v, and Presario 1100 notebooks use only
DDR266 SDRAM modules. Using the wrong type of module prevents the notebook from booting.
 
Caution
 
Handle the SDRAM module only by its edges and provide proper grounding, or you might damage
the module through electrostatic discharge.
Required Equipment
 • 
#1 Phillips screwdriver.
Removal Procedure
 
1. 
Unplug the AC adapter, if present, and then remove the battery.
 
2. 
On the bottom of the notebook, loosen the captive screws holding the SDRAM door, and then
remove the door.
 
3. 
Press outward on the latches at the sides of the SDRAM module to release it (the SDRAM module
pops up).
 
4. 
Carefully pull the SDRAM module out of the connector.
 
  Figure 2-3. Removing an SDRAM Module
Reassembly Notes
 • 
Carefully press the SDRAM module into the connector at an angle of about 30°, until it is fully
inserted. Then press down on both sides of the SDRAM module until the latches snap closed. 
						

							2-6 Removal and Replacement Service Manual
Removing the Wireless LAN Mini-PCI Card
(User-Replaceable)
Certain notebooks include a wireless LAN mini-PCI card under the mini-PCI door on the bottom of the
notebook.
  Caution
 
Handle the Mini-PCI card only by its edges and provide proper grounding, or you might damage the
card through electrostatic discharge.
Required Equipment
 • 
#0 Phillips screwdriver.
Removal Procedure
 
1. 
Unplug the AC adapter, if present, and then remove the battery.
 
2. 
On the bottom of the notebook, loosen the captive screws holding the Mini-PCI door, and then
remove the door.
  Caution
 
Be careful when connecting and disconnecting the antenna cables from the mini-PCI card.
Damaged cables or connectors can degrade notebook performance.
 
3. 
Disconnect the two antenna cables from the mini-PCI card.
 
4. 
Press outward on the latches at the sides of the mini-PCI card to release it (the mini-PCI card pops
up).
 
5. 
Carefully pull the mini-PCI card out of the connector.
 
  Figure 2-4. Removing the Mini-PCI Card
Reassembly Notes
 • 
Carefully press the mini-PCI card into the connector at an angle of about 30°, until it is fully
inserted. Then press down on both sides of the mini-PCI card until the latches snap closed. 
						

							Service Manual Removal and Replacement 2-7
Removing the Hard Disk Drive
(User-Replaceable)
Required Equipment
 • 
#1 Phillips screwdriver.
Removal Procedure
  Important
 
If you are installing a new hard disk drive, load the factory software and operating system on the
drive as described in “Recovering the Factory Software,” as shown on the next page.
 
1. 
Unplug the AC adapter, if present, and then remove the battery.
 
2. 
On the bottom of the notebook, remove the hard drive rubber screw plugs and retaining screws.
 
3. 
Carefully pull the hard drive out of the notebook.
 
  Figure 2-5. Removing the Hard Disk Drive
Screw, M2.5×6mm (2) 
						

							2-8 Removal and Replacement Service Manual
 
4. 
Remove the screws from the drive and drive tray, then lift the drive out of the tray.
 
5. 
Remove the connector from the hard disk drive.
  Figure 2-6. Removing the Hard Disk Drive Tray
Recovering the Factory Software
The following procedure describes how to recover the notebook’s original software and operating
system. This process can take up to 15 minutes to complete. (For more information about recovering
the factory software installation, see the readme.txt file in the root directory of the Recovery CDs
.)
  Caution
 
Do not interrupt the following process or unplug the AC adapter until the process completes.
 
1. 
Connect the AC adapter to the notebook.
 
2. 
Insert Recovery CD
 disk 1 into the notebook’s CD/DVD drive. If the notebook is turned off, use a
pin or straightened paper clip to press the release switch on the drive door to open it.
 
3. 
Turn on or restart the notebook.
 
4. 
When the HP logo appears, press Esc to display the Boot menu.
 
5. 
Use the arrow keys to select the CD/DVD drive as the first boot device, then press Enter.
 
6. 
When the Recovery CD
 dialog box appears, follow the displayed instructions. If prompted, accept
the recommended partition size.
 
To create the Utility partition without installing the factory software, click Advanced and select not
to install the operating system.
 
If the hard disk is partitioned into several logical drives, you can install the factory software on
drive C without affecting other drives. Click Advanced and select to restore only the C partition.
 
7. 
When prompted to reboot the notebook, press Ctrl+Alt+Del and follow any instructions that
appear.
Screw, M3×4mm (4) 
						

							Service Manual Removal and Replacement 2-9
Replacing Small Parts
(User-Replaceable)
The user can replace the following small parts.
  Table 2-4. Replacing Small Parts (User-Replaceable)
PartReplacement Procedure
Rubber screw plugs,
display (on display bezel)Insert a small flat-blade screwdriver under the rubber screw plug and pry it
loose. To replace, firmly press the adhesive side of the screw plug into the
recess.
Door, mini-PCIOn the bottom of the notebook, loosen the screws that secure the mini-PCI
door to the bottom case and then remove the door.
Door, memoryOn the bottom of the notebook, loosen the screws that secure the SDRAM
module door to the bottom case and then remove the door.
Feet, rubber (on bottom of
notebook)Insert a small flat-blade screwdriver under the foot and pry it loose. To
replace, firmly press the adhesive side of the foot into the recess.
Rubber cover, docking port
(XE4500 only)Grasp the rubber docking port cover with your fingers and gently remove it. To
replace, firmly press the docking port cover into the opening in the bottom
case.
Cover, modem portInsert a small flat-blade screwdriver at the top of the cover and gently pry it
loose. To replace, insert the cover into the modem port opening.