Notebook Field Replaceable Parts and Assemblies

All members of the Extensa 57x Series Notebook Computers contain two major assemblies including the Cover Display Assembly (upper half of notebook computer) and the System Base Assembly (lower half of the notebook). Each of these two assemblies contain FRUs as described in the following subparagraphs. As shown in Figure 6-1, the Cover-Display Assembly contains the LCD screen, Power Inverter Board, Transfer Board and cables. The Field-Replaceable Units (FRUs) within the Cover Display Assembly...

Troubleshooting Procedures

The built-in self test program and the disk resident diagnostics program (PC-Doctor) are useful tools in computer troubleshooting. However, if the computer has a power, keyboard or display problem, you first solve this problem before running diagnostics. If the computer powers up and displays messages on the LCD or emits a series of beeps, skip to Paragraph 5.3.3 for further instructions. 5.3.1 Troubleshooting a Power Supply Problem If the computer does not power up when the Power Switch is set...

Installing External Devices

Most external devices connect to the Notebook via the connectors on the rear of the notebook as shown in Figure 2-1. Additional connectivity can be obtained by installing an optional Port Expander to the Notebook's PCI Expansion Bus. 2.5.1 Installing an External Keyboard Mouse As shown in Figure 2-2, the notebook has one external PS 2 port on the rear of the Notebook for installing a PS 2 compatible device (keyboard, mouse, etc.). Additional PS 2 devices may be installed using the Port Expander...

Installing Notebook Options

If you have no options to install at this time, skip to Paragraph 2.4. Otherwise, continue with Paragraph 2.3.1. 2.3.1 Installing Expansion Memory Modules Note If not installing RAM Expansion option at this time, skip to the next paragraph. Caution The Dual Inline Memory Module contains components that are sensitive to static electricity. When handling the module and the internal parts of the computer, protect against static electricity by using wrist or ankle grounding straps and grounded...

Operating Procedures

Some of the operating features useful for notebook maintenance are provided in the following paragraphs. For additional operating instructions, refer to the Extensa 57X Series Notebook Computer User's Manual. 3.3.1 Floppy Drive Operating Procedures To avoid damaging the floppy drive, and to protect data, take the following precautions Never turn off or reset the notebook while the floppy activity indicator is lit. Keep the AC adapter at least 6 inches away from your drive. Insert the floppy...

Preventive Maintenance

Preventive maintenance is limited to cleaning the plastic case, the keyboard, and the display screen. When it is necessary to clean the plastic case, glidepad and keyboard, use a soft, lint-free cloth, slightly dampened with a mild detergent solution or use the contents of any commercially available computer cleaning kit. Caution Never use alcohol, petroleum-based solvents, or harsh detergents to clean your computer. Also never spray any liquids directly on the computer case, keyboard, or...

FRU Removal and Replacement Procedures

The following paragraphs contain field service-level removal replacement procedures for the Notebook. Caution Prior to removing any of the internal FRUs in the notebook, remove the AC Adapter, battery, floppy and hard drives and all external options installed on the notebook. 6.5.1 Removing Replacing the Notebook Battery Pack The procedure for removing and replacing the battery pack s is as follows 1. Turn off the computer and disconnect the AC adapter and any external devices from the...

Notebook Assemblies and Subassemblies

The Extensa Series Notebooks are modular in design and can be disassembled for maintenance purposes using a standard set of flat-bladed, Phillips-head and hexagonal screwdrivers. The major assemblies that comprise a typical notebook in the Extensa family are shown in Figure 1-6 and briefly described in the following paragraphs. The Cover-Display Assembly contains the LCD screen and associated high voltage power supply and video circuitry. The Cover-Display Assembly contains several...

Installing the Battery Packs

The Extensa Notebook is shipped with a single battery pack that is inserted from the front left side of the computer. A second battery pack option can be installed in the removable Floppy CD-ROM bay. Two switches that used to remove devices from the option bay are physically located on the bottom of the Notebook. The left-most switch controls removal of the Primary Battery Pack and the right-most switch controls removal of the device installed in the Floppy CD-ROM Secondary Battery bay. To...

Extensa x Series Notebook Specifications

Specifications for the Extensa 57x Series Notebooks are provided in Table 1-3. Table 1-3 Extensa 57x Notebook Features Table 1-3 Extensa 57x Notebook Features Nickel-Metal Hydride, optional Lithium-Ion secondary battery pack option Nickel-Metal Hydride, optional Lithium-Ion secondary battery pack option 16-bit Stereo Sound, Audio in out and Microphone In jacks, built in stereo speakers and microphone 16-bit Stereo Sound, Audio in out and Microphone In jacks, built in stereo speakers and...

B PCDoctor Menus

There are several selections available from the menu bar of the PC-Doctor Diagnostics main menu. These include To obtain context sensitive help from any menu, press F1. Pressing F1 twice or clicking on the question mark in the upper left-hand corner of the menu provides you with complete online documentation. The Diagnostics menu allows you to run non-destructive tests with little or no operator interaction. Options available from the PC-Doctor Diagnostics Menu include System Test - tests all...

Notebook Functional Description

Eisa Bus Block Diagram

Functionally, the notebook computer consists of the following major subsystems Processor and Memory Subsystem A functional block diagram of the Extensa 57x Series Notebook is shown in Figure 4-1. The Processor function, housed on the Main Board, is implemented with the Intel Pentium Processor P54C LM . The processor operates in conjunction with RAM and ROM Memory on the Memory Board and other control logic on the Main Board to process software instructions BIOS, Windows 95, and Applications ....