HP Omnibook Xe3 Ge Service Manual
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HP Omnibook XE3 (Technology Codes GE and GD) Product Information 1-15 Internal Design The motherboard PCA is the central component of the notebook’s design, and plays a role in virtually all system functions. The CPU module and most other subsystems connect to the motherboard. The following figure shows the connections among the notebook’s replaceable electronic modules. In addition, the table on page 1-16 lists the roles that the replaceable modules play in each of the notebook’s functional subsystems. Figure 1-8. Replaceable Module DiagramMotherboard PCA Mini-PCI PCA CD/DVD drive SDRAM module Battery Keyboard PCMCIA sockets (2) PCMCIA cards Floppy disk drive Heatsink/fan assembl y Top case(speakers, touch pad, click buttons) CPU module Video PCA Switchboard PCADisplay assembly Headphone PCA Hard disk driveCD player PCA
1-16 Product Information HP Omnibook XE3 (Technology Codes GE and GD) Table 1-7. Functional Structure Function Components Used Component Roles BootupCPU module Motherboard Floppy disk module Hard disk driveMain processor. Primary system circuitry. 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 module Video PCANo onboard RAM. Changeable RAM (2 slots). Video RAM. PowerBattery Motherboard Switchboard PCA AC adapterPower storage. Power control circuitry, AC adapter socket, lid switch, system-off switch, power supply. Power switch, standby button. AC-to-DC converter. DisplayMotherboard Display assembly Video PCAVideo controller. Display output, backlight, power converter for backlight. Display drivers, LVDS processing, display/graphics controller, video RAM. Hard diskMotherboard Hard disk driveHard disk controller. Hard disk mechanism. Floppy driveMotherboard Floppy disk moduleI/O controller, floppy connector. Floppy disk mechanism. KeyboardMotherboard KeyboardKeyboard controller, keyboard BIOS. Key switches. Touch padMotherboard Top caseKeyboard BIOS. Touch pad sensor, click buttons, controller (PS/2 output). AudioMotherboard Switchboard PCA Headphone PCA Top caseAudio controller, audio decoder, speaker amplifier, external microphone jack. Microphone. Earphone amplifier. Speakers. StatusMotherboard Switchboard PCA CD player PCALED circuitry, keyboard controller. Status LEDs. CD/DVD status display. SerialMotherboard I/O controller, serial connector. ParallelMotherboard I/O controller, parallel connector. PS/2 portMotherboard Keyboard controller, PS/2 connector. USBMotherboard Bus controller, USB connectors. PCMCIAMotherboard PCMCIA socketsPCMCIA controller. PCMCIA connectors.
HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-1 2 Removal and Replacement This chapter shows 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 • Battery (page 2-4). Carrier, hard disk drive (page 2-15). Case, bottom (page 2-35). Case, top (page 2-22). Cover, keyboard (page 2-10). • Cover, mini-PCI (page 2-9). • Cover, SDRAM (page 2-9). • Covers, screw (page 2-9). Display assembly (page 2-18). Doors, PCMCIA (page 2-38). Drive, CD/DVD (page 2-34). Drive, floppy disk (page 2-32). Drive, hard disk (page 2-14). Heatsink assembly (with fan) (page 2-29). Keyboard (page 2-12). Module, CPU (page 2-30). • Module, SDRAM (page 2-5). PCA, CD player (page 2-24). PCA, headphone (page 2-41). • PCA, mini-PCI (page 2-7). PCA, motherboard (page 2-35). PCA, switchboard (page 2-41). PCA, video (page 2-27). Saddle, hinge set (page 2-25). Socket, PCMCIA (page 2-41). Caution Always provide proper grounding when performing repairs. W ithout proper grounding, an electrostatic discharge can damage the notebook and its components. Notes To reassemble a component, perform the removal procedure in reverse order. Any special notes required for reassembly are included at the end of each section. Symbols like this throughout this chapter 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 M2.5×5 mm T-head screw.)
2-2 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD) Disassembly Flowchart The following diagram shows the general “path” you will use in disassembling the notebook to access any particular component. Figure 2-1. Disassembly Flow Start Battery, AC adapter, SDRAM modules, mini-PCI PCA Keyboard cover Keyboard Hard disk drive assembly Display assembly Top case assembly Hinge saddle set CD/DVD drive assembly Video PCA Floppy disk drive assembly Headphone PCA Heatsink assembly (with fan) CPU module Motherboard or bottom caseCD player PCA If removing only heatsink assembly or CPU module Only if not removing motherboard or bottom caseSwitchboard PCA (also remove if removing motherboard or bottom case assembly) PCMCIA doors
HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-3 Table 2-2. Required Equipment • #0 Phillips screwdriver, preferably magnetized. • Small flat-blade screwdriver. • 5 mm hexagonal socket screwdriver. • Electrostatic device (wristband and pad). Table 2-3. Recommended Screw Torques Screw Thread SizeTorque (cm-kgf)Torque (in-lbf) M2.5 (2–11 mm long) 3.0 – 3.5 2.6 – 3.0 M2.5 (12–19 mm long) 2.5 – 3.0 2.2 – 2.6 M3 3.0 – 3.5 2.6 – 3.0 NOTES
2-4 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD) Removing the Battery (User-Replaceable) Required Equipment • None. Removal Procedure • Slide the battery’s release latch, then lift the battery out of its compartment. Figure 2-2. Removing the Battery Reassembly Notes • Insert the front (rounded) end of the battery into the battery compartment, and lower the back end in until it clicks into place.
HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-5 Removing an SDRAM Module (User-Replaceable) The notebook has no SDRAM on its motherboard, but has slots for two SDRAM modules. Table 2-4. SDRAM Module Replacement Part Numbers DescriptionPart NumberExchange Part Number Module, SDRAM, 128 MB, PC133 SODIMM 1818-8504 Module, SDRAM, 256 MB, PC133 SODIMM 1818-8635 Caution Provide proper grounding and handle the SDRAM module only by its edges, or you could damage the module through electrostatic discharge. Required Equipment • #0 Phillips screwdriver. Removal Procedure 1. Unplug the AC adapter, if present, and remove the battery. 2. On the bottom of the notebook, loosen both screws holding the SDRAM cover (the cover retains the screws), and remove the cover. Figure 2-3. Removing the SDRAM Cover
2-6 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD) 3. Press outward to release the latches at the sides of the SDRAM module, so the free edge of the module pops up. Figure 2-4. Removing an SDRAM Module 4. Pull the module out of the connector. Reassembly Notes • Gently 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 module until the latches snap closed.
HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-7 Removing the Mini-PCI PCA (selected models) (User-Replaceable) Certain notebook models include a mini-PCI PCA that contains either a modem or modem/LAN. Table 2-5. Mini-PCI PCA Replacement Part Numbers DescriptionPart NumberExchange Part Number PCA, mini-PCI (LAN/modem) F2409-60907 PCA, mini-PCI (LAN/modem) Malaysia F2409-60908 PCA, mini-PCI (modem) F2409-60909 PCA, mini-PCI (modem) Malaysia F2409-60910 Caution Provide proper grounding and handle the PCA only by its edges, or you could damage it through electrostatic discharge. Required Equipment • #0 Phillips screwdriver. Removal Procedure 1. Unplug the AC adapter, if present, and remove the battery. 2. Loosen the screw holding the mini-PCI cover (the cover retains the screw), and remove the cover. 3. Press outward to release the latches at the sides of the PCA, and carefully lift its free edge up. Note that the PCA has several sticky pads on the side facing the motherboard. 4. Disconnect the cable (modem models only) or cables (modem/LAN models only) from the PCA. 5. Gently pull the PCA out of its connector.
2-8 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD) Figure 2-5. Removing the Mini-PCI PCA Reassembly Notes • Reattach the cable (modem models only) or cables (modem/LAN models only) to the PCA, and tuck them into the compartment. • Gently press the PCA into the connector at an angle of about 30°, until it is fully inserted. Then press down on both sides of the PCA until the latches snap closed. • Make sure sticky pads on the underside of the PCA are intact. Replace if needed.