Maintenance Manual tm Extensa 450 Series Notebook Computers 9805725-0001 November 1995
Copyright (©) 1995 Texas Instruments Incorporated All Rights Reserved — Printed in U.S.A. Extensa 450 Series Notebook Computers Maintenance Manual TI Part No. 9805725-0001 Original Issue: November 1995 Changes may be made periodically to the information in this publication. Such changes will be incorporated in new editions of this manual.
Contents Preface Section 1 General Description 1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 Product Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.3 International Product Versions. . . . . . . . . . . . . . . . . . . . . . 1-2 1.4 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.4.1 External Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.4.
2.5.1 Installing an External Keyboard/Mouse . . . . . . . . . . . 2-6 2.5.2 Installing External Parallel Printer . . . . . . . . . . . . . . . 2-8 2.5.3 Installing External Serial Port Device . . . . . . . . . . . . . 2-8 2.5.4 Installing External VGA Monitor . . . . . . . . . . . . . . . . . 2-10 2.5.5 Installing SIR Devices . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 2.6 Installing the AC Power Adapter . . . . . . . . . . . . . . . . . . . . 2-11 2.7 Initial System Checkout . . . . . . . . .
4.2.4 Hard Disk Subsystem . . . . . . . . . . . . . . . . . . . . . . . . 4-8 4.2.5 Floppy Diskette Drive Subsystem. . . . . . . . . . . . . . . . 4-9 4.2.6 PCMCIA Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 4.2.7 Power Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 Section 5 Troubleshooting Procedures 5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5.2 Overview of Fault Isolation Process . . . . . . . . . . . . . .
.5.9 Removing and Replacing the Inverter Board. . . . . . . . 6-10 6.5.10 Opening/Replacing the Top Case Assembly . . . . . . . 6-11 6.5.11 Removing/Replacing the Touch Pad Assembly . . . . . 6-11 6.5.12 Removing/Replacing the SIR Board . . . . . . . . . . . . . 6-13 6.5.13 Removing/Replacing the Primary Battery Board . . . 6-14 6.5.14 Removing/Replacing Power Supply Board . . . . . . . . 6-15 6.5.15 Removing/Replacing the Memory Board . . . . . . . . . 6-16 6.5.16 Removing/Replacing the Main Board . . . .
Preface This manual provides installation, operation and servicing data for the Extensatm 450 Series Notebook Computers. Intended Audience This manual is primarily intended for use by qualified service technicians but contains information useful to non-technical users.
• Extensa 450 Series Notebook Computer User’s Reference Manual, Part No. 9803942-0001; contains reference information regarding the Extensa 450 series software including the TI custom utilities.
Section 1 General Description 1.1 Introduction This manual contains field and factory level servicing information for the Texas Instruments Extensa tm 450 Series of Notebook Computers (Figure 1-1). This section provides a general overview and specifications for the Extensa 450 Series Notebook Computers.
1.2 Product Models Table 1-1 summarizes the features of the product models initially available in the Extensa 450 product line. Basically, the product models offer a choice of either 10.4" Dual Scan Color or 9.4" Active Matrix Color LCDs and a choice of either the basic Windows 95 operating system or Windows 95 plus applications. Table 1-1 Extensa 450 Series Notebook Computers Model 450 Model 450T 10.4" DS LCD 9.4" Active Matrix Color 10.4" DS LCD 9.
1.4 Product Overview All members of the Extensa 450 Series are high performance notebooks powered by the 75MHz IntelDX4 processor and Windows 95 tm Operating System software.
Figure 1-2 Extensa 450 Series Features 1-4 General Description
1.4.
1.4.2 Touchpad Pointing Device All members of the Extensa family feature a built-in Touchpad pointing device located near the center of the keyboard’s palmrest. With light presure, the cursor can quickly be positioned to the desired point; a quick double tap on the Touchpad and you have selected an object. Two select buttons (switches) are located along the front edge of the notebook . Figure1-4 Extensa Touchpad 1.4.
The notebook keyboard is available in the following versions: • • n U.S. English - This version (also known as the domestic version) has 81 keys and is generally used in the United States and Canada. U.K. English - This version (also known as the international version) has 82 keys and is generally used in England, Germany, and other European countries with the appropriate keycap changes.
the Fn key with the appropriate keys provides cursor movement, paging and other functions in the normal mode. • • • Scroll Lock indicator. This LED lights to indicate that the keyboard is locked in the scroll mode. Hard Disk Drive Activity Indicator. Indicates when notebook is accessing the hard drive. Standby Indicator. Lights when Notebook is in Standby mode. Figure1-6 Extensa Series Controls and Indicators 1.4.
All members of the Extensa 450 family feature TI’s patented power management subsystem (hardware and software) that provides longer portable operation and protection of files during low battery conditions. 1.4.5 Wireless Connection With Serial Infrared Port The Extensa series notebooks are equipped with a Serial Infrared (IR) port that offers wireless communication with a variety of IRDA-compliant devices made by other manufacturers.
• Third Party External PS/2 keyboard (or external mouse) 1.5 Standard Test Features The Extensa Series Notebook Computers use modular design and built-in test features to reduce the mean time to repair. A power on self-test automatically verifies the operational state of the primary circuits and a powerful suite of diagnostic tests are available to further test selected parts of the system. 1.
1.6.1 Cover-Display Assembly The Cover-Display Assembly contains the LCD screen and associated high voltage power supply and video circuitry. The Cover-Display Assembly contains three field-replaceable components including: • LCD Assembly • Inverter Board • Slide Pot/Converter Board The Cover-Display Assembly attaches to the System Base Assembly through four top mounted screws and six mounting screws on the bottom of the computer. 1.6.
1.7 Extensa 450 Series Notebook Specifications Specifications for the Extensa 450 Series Notebooks are provided in Table 1-6. Table 1-6 Specifications Extensa 450 Notebook Features Models 450/450T Models 455/455T Memory: Standard: 4MB 4MB Maximum 32MB 32MB LCD Type: 10.4" Dual Scan Color 9.4" Active Matrix Color Simultaneous LCD/Ext.
Specifications Models 450/450T Software Models 455/455T Windows 95 Windows 95,plus applications Weight: Approx. 5.0 Pounds (2.27kg) * Approx. 5.0 Pounds (2.27kg) Dimensions: 11.7” (L) X 1.7” (H) X 8.2” (W) 11.7” (L) X 1.7” (H) X 8.2” (W) Physical Characteristics * Wight specifications do not include Floppy Drive, AC Adapter or 2nd Battery 1.
2 Installation 2.1 Introduction This section contains unpacking and preparation for use instructions for the Extensa 450 Series Notebook Computers. 2.2 Unpacking Instructions The packaging diagram for the notebook computer is shown in Figure 2-1. Unpack the computer using the following instructions: 1. Carefully cut the tape that seals the top flap of the shipping carton. 2. Remove the computer and the accessories from the main shipping carton. 3. Remove all protective coverings from the computer. 4.
1. Ensure that the notebook is powered off and that the AC Adapter and internal battery pack(s) is (are) removed from the notebook. 2. Remove the DIMM module(s) from its shipping container. 3. Release the Keyboard by pulling the keyboard release tabs forward (tabs are located underneath the Ctrl and right arrow keys). 4 Disengage the Keyboard using a straight blade screwdrive and gently lifting up along the front edge of the keyboard.
2.3.2 Installing PCMCIA Options The Notebook has provisions for one Type I or Type II PCMCIA option card. However, a type III PCMCIA device can be installed if the Floppy Drive is removed from the notebook and the optional PCMCIA Module is installed.. 1. Review the installation instructions supplied with the PCMCIA option card(s). 2. Open the Type I/II PCMCIA compartment cover on the left side of the notebook. 3.
2.3.3 n Installing the Port Adapter Note: Skip this paragraph if not installing the Port Adapter at this time. To install the Port Adapter, refer to Figure 2-3 and use the following procedure: 1 Remove the -port adapter and any accessories from its shipping carton . 2 Disconnect the AC Adapter from the notebook (if attached). 3 Open the rear connector door on the notebook and attach the Port Adapter to the notebook as shown in Figure 2-3.
2.3.4 Installing the Optional Numeric Keypad An optional numeric keyboard can be attached to the notebook via the notebook’s PS/2 connector as shown in Figure 2-4. Figure 2-4 2.4 Installing the Numeric Keypad option Installing the Battery Pack(s ) The standard configuration of the Extensa Notebook is equipped with a single battery pack that is inserted from the front right side of the computer.
c Caution: There is danger of explosion if the battery is incorrectly replaced. Replace the battery only with the same or an equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions. 2.5 Installing External Devices Most external devices connect to the Notebook via the connectors on the rear of the notebook and on the rear of the Port Adapter supplied with the notebook (see Figure 2-5 for port assignments). Figure 2-5 2.5.
PS/2 Ports Figure 2-6 PS/2 Port Assignments/Pinouts To install an external keyboard or external PS/2 mouse on the notebook, use the following procedure: 1. Ensure that the notebook is powered off. 2. Locate the external PS/2 ports at the rear of the notebook (see Figure 2-6). 3. Attach the PS/2 cable from your mouse and/or keyboard cable to the PS/2 port(s). 4. Power on any other peripheral devices you may have connected to the notebook, and then power up the notebook.
2.5.2 Installing External Parallel Printer The Notebook is equipped with a bi-directional, ECC/EPP compatible, 25-pin parallel printer port. The connector pinouts and connector location are shown in Figure 2-7. If you will be using a parallel interface, connect the 25-pin male connector of your printer cable to the 25-pin female parallel port on your notebook. Refer to the manual which accompanied your printer for instructions on configuring your operating environment Figure 2-7 2.5.
c Caution: Never connect a parallel device to a serial port or a serial device to a parallel port or video port; this may cause damage to the Notebook and/or peripheral device. If you are uncertain of what type connector the external device has, refer to the technical manual for the external device.
2.5.4 Installing External VGA Monitor The notebook is capable of driving both its internal LCD display and an external VGA monitor (LCD only, simultaneous, or VGA only). The external monitor connector pinouts and connector locations are shown in Figure 2-9. To install an external monitor with the notebook, use the following steps: 1. Ensure that both the notebook and the external monitor are turned off. 2. Locate the 15-pin female VGA port on the Port Adapter. 3.
Figure 2-9 2.6 External Monitor Port Pinouts Installing the AC Power Adapter Use the following procedures to connect the AC Adapter to the system: c Caution: Use only the AC Adapter supplied with the computer; other adapters can damage the unit. 1. Remove the AC adapter from the packaging. Connect the round coaxial connector supplied with the notebook to the power receptacle on the rear of the notebook as shown in Figure 2-10. 2.
Figure 2-10 2.7 AC Adapter Installation Initial System Checkout After you’ve installed all internal options and external cabling, you’re ready for system checkout and software configuration. To check out the system, set the power switch on the notebook to the On (I) position which initiates the notebook self test. During self test execution, the computer checks the operation of all key hardware including memory and CPU (and displays copyright and version number data during test execution).
2.9 Making Backups of System Software The Notebook is preloaded with Windows 95 operating system software. Prior to extended use of the notebook, create a backup set of system software using the Backup Utility under Windows 95. In the event of a disk problem, you can restore your system using the Restore Utility and the set of backup diskettes you’ve just created. 2.
3 Operating Instructions 3.1 Introduction The first two subsections describe the Extensa 450 Series Notebook operating controls and indicators. The remainder of this section contains a summary of computer operations related to notebook maintenance including how to restore system software. n Note: For additional operating instructions, see Extensa 450 Series Notebook Computer Users Guide, TI Part No.9803942-0001. 3.
Figure 3-1 Extensa Series Controls and Indicators 3.2.1 LCD Contrast Control The TFT version of the notebook contains no operating controls or indicators. The Dual Scan version of the display contains a contrast switch on the lower right side as shown in Figure 3-1. 3.2.2 Button Switches The notebook contains two button switches above the keyboard including: • • Power On/Off Switch- Alternate action, button type switch that controls power to the unit.
3.2.3 Cover Release Latch The Notebook contains one Cover Release latch . To open the notebook, slide the Release Mechanism to the right and lift up on the front edge of the notebook cover. 3.2.4 Touch Pad Controls The Extensa 450 Series Notebook Computers are equipped with a built-in mouse device called “the Touchpad” physically located at the bottom of the keyboard (see Figure 3-1). The cursor is positioned by touching and draging your finger in the direction you want the cursor to go.
• 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 into the floppy drive slot with the label side up and the metal-shutter end first. Gently push the floppy into the floppy drive slot until the floppy clicks into place. • To remove a floppy, press the eject button until the floppy pops out. • Never force open the access shutter on a floppy.
3.3.4 Responding to Low Battery Conditions The computer generally will notify you when you are reaching a low battery condition by the following: • Four short beeps per minute (unless battery warning is disabled) The battery low warning is automatically disabled when the AC Adapter is installed on the notebook regardless of the charge condition of the battery pack. If the AC adapter is not plugged in within threeminutes of a detected battery low condition, the notebook enters Suspend mode.
3.3.8 Rebuilding the System Software In the event of a hard drive replacement or system board replacement which resulted in loss of system software, you may need to rebuilt the entire system software structure. The following items are required to rebuild the system software: • Set of backup diskettes of the system software • Operational Notebook Insert the Windows 95 Startup Diskette in the Notebook’s floppy drive and power up the system.
4 Theory of Operation 4.1 Introduction This section describes the notebook theory of operation. 4.2 Notebook Functional Description Functionally, the notebook computer consists of the following major subsystems: • Processor and Memory Subsystem • I/O Subsystem • Video Subsystem • Hard Disk Subsystem • Floppy Disk Subsystem • PCMCIA Subsystem • Serial Infrared Subsystem • Power Subsystem A functional block diagram of the Extensa Notebook is shown in Figure 4-1. 4.2.
Figure 4-1 4-2 Theory Notebook Functional Block Diagram
Table 4-1 Extensa Series I/O Address Map Address Range Device 000-00F DMA Controller 1 020-021 Interrupt Controller-1 022-023 M1429 Registers 040-043 Timer 1 060-06E Keyboard Controller 8742 Chip Select 070-071 Real Time Clock and NMI Mask 080-08F DMA Page Register 0A0-0A1 Interrupt Controller 2 0C0-0DF DMA Controller-2 1F0-1F7 Hard Disk Select 178,,17A 6377 Registers 1F0-1F7 Hard Disk Select 3F6,,3F7, 278-27F Parallel Port 3 35F, 36F Special I/O Ports 378,,37A Parallel Port
Table 4-2 DMA Channels Controller Channel Address Function 1 0 0087 Spare 1 1 0083 Spare 1 2 0081 Diskette 1 3 0082 Spare 2 4 Cascade Cascade 2 5 008B Spare 2 6 0089 Spare 2 7 008A Spare Table 4-3 IRQ Interrupt Levels 4-4 Priority Interrupt Number 1 SMI Power management unit 2 NMI Parity Error Detected,,I/O Channel Error 3 IRQ0 Interval Timer,,Counter 0 Output 4 IRQ1 Keyboard IRQ 2 Interrupt from controller 2 (cascade) 5 IRQ8 Real Time Clock 6 IRQ 9
n Note: A PCMCIA card can use IRQ 3, 4, 5, 7, 9 and 11 as long as it does not conflict with the interrupt address of any other device. 4.2.2 I/O Subsystem The I/O subsystem, implemented with an NS87334 VJG Super I/O Controller Chip, provides for such functions as internal Hard Drive control, floppy drive control, serial and parallel ports and support for the Serial Infrared port. The Super I/O Controller includes the following features: .
• • Integral IDE controller • • • Includes protection circuit against damage caused when printer is powered up, or operated at higher voltages Provides a complete IDE interface with DMA control (except for optional buffers) Integral address decoder- provides selection of all primary and secondary ISA addresses including COM1-4 and LPT1-3.
4.2.3.1 External VGA Drive Capability On the Extensa 450, the external VGA port is provided by the port adaptor fixture in the form of a 15-pin, female, D-type connector which can be used to drive an external CRT (standard VGA modes with resolutions of 800 X 600 X 256, or 640 X 480 X 256 ). 4.2.4 Hard Disk Subsystem The Hard Disk Subsystem, controlled by the IDE interface compatible NS87334 VJG Super I/O Controller on the Main Board, provides disk storage for all system software and user files.
• Direct connection to ISA (PC AT) Bus • Direct connection to PCMCIA 2.0 Bus • PCMCIA 2.0- and JEIDA 4.
• LCD standby mode • Hard disk standby mode • System standby/suspend mode • Battery-low warning • Standby/suspend upon battery low 4.2.7.2 AC Adapter The notebook uses an AC adapter with built in over voltage and short circuit protection. The adapter can with stand a continuous short-circuit to DC output without damage to the notebook logic components. The adapter operates in shut down mode shorting Vo trail and resets to the normal power mode after the fault condition is removed. 4.2.7.
4.2.7.4 Secondary Battery Pack As an optional feature, the Floppy Drive can be removed from the notebook and a Li-Ion (Lithium Ion) secondary battery pack can be installed in the same cavity to provide additional battery operating time.
5 Troubleshooting Procedures 5.1 General This section provides the following information: • Overview of the fault isolation process • Guidelines for isolating computer malfunctions to replaceable subassemblies • Instructions for executing diagnostics and interpreting error messages. 5.
START COMPUTER TROUBLE INDICATION ? WHEN POWER SWITCH SET TO ON,, NO INDICATION OF POWER; SCREEN DARK, STATUS LED's EXTINGUISHED DEAD COMPUTER SYMTOMS ? NO YES SEE PARAGRAPHS 5.3.1 & 5.3.2 NO SET POWER SWITCH TO ON. SELFTEST AUTOMATICALLY RUNS RUN SELF TEST ERROR MESSAGE ? YES SEE PARAGRAPH 5.3.4 NO MODEM PROBLEM ? YES SEE PARAGRAPH 5.3.
• • • • • Try rebooting the system (CTRL-ALT-DEL); restore system from diskettes, if necessary. If the computer is capable of running the Setup program; check the serial and parallel port configurations, and other features that may affect system operation. Run Diagnostics to further isolate problem area (See Paragraph 5.3.5). For indicated hardware failures, cycle power and repeat self test to verify that a hard failure has occurred.
Figure5-2 Troubleshooting Block Diagram • If the AC outlet voltage, AC Adapter, and battery packs test normal but the computer will not power up, replace the Power Supply Board and/or Battery Board as described in Section 6. 5.3.
• • • • LCD standby mode - If the LCD backlight remains off, even with the Contrast Control set to its highest position, the LCD may be in Standby Mode. Press the Standby or Power button to power up the system. Notebook Set for External Monitor- use CMOS Setup to reset notebook. LCD - Replace the cover-display assembly as described in Section 6 of this manual. Low battery - Use a fully charged battery. 5.3.
5.3.5 Fault Isolation Using Diagnostics PC-Doctor supplied with the Extensa 450 Series Notebooks is a powerful diagnostics tool that can help you scan an internal RAM system for viruses, determine the hardware configuration of a local or remote system, benchmark its performance, analyze the performance of all subsystems, and perform a suite of interactive and non-interactive tests on attached devices.
devices from your notebook and installing loopback plugs. The Non-Interactive test categories include: • CPU and Co-Processor Tests • Base RAM memory test • System Board test • Video Test • Com1 and LPT1 serial port tests • Parallel Port Test • Fixed Disk test • Diskette Drive tests • Other devices (Sound card, PCMCIA options, etc.) Interactive Tests The PC-Doctor diagnostic test includes a suite of seven Interactive tests that require operator input during the course of the test.
Supporting Online documentation The PC-Doctor Diagnostic contains the following online information sources: • • Online Technical Manual- selected at any time by pressing F1 key twice or by clicking on the Question Mark in the upper left hand corner of any PC-Doctor Menu On-line Help system that provides context sensitive information from every PC-Doctor screen- accessed by pressing F1 key once (pressing F1 twice gets you into the online manual) 5.3.5.
Where the value 1440 is the capacity of the diskette (1.44 MB in this example). 4. Get into the PC-Doctor directory ( type CD C:\PCDR and press Enter) 5. Copy the PC-Doctor files to the bootable diskette using the following command: XCOPY C:. A:. After completion of this procedure, you should have a bootable diskette containing PC-Doctor. 5.3.5.3 Running PC-Doctor PC-Doctor is a DOS-resident program that can be run from either hard disk or from the bootable diskette you previously created. n 1.
6 Field Service 6.1 Introduction This section contains preventive and corrective maintenance procedures for the Extensa 450 Series Notebook Computers. The first part of the section describes the computer cleaning procedures and preferred handling procedures for sensitive components (e.g. disk drives, batteries). The second part of the section identifies all field replaceable parts; the remainder of the section contains removal and replacement procedures for the field replaceable parts. 6.
6.2.2 Protecting the Disk Drives To protect the disk drives and data, back up the system disk periodically on floppy diskettes. Periodically use a head-cleaning diskette in the floppy diskette drive to prolong the life of the drive and to help maintain data integrity. 6.2.3 Handling the Computer Battery Pack The battery pack furnished with the computer requires reasonable care and handling to ensure efficient operation and maximum life.
c Caution: All boards, options and peripherals contain components that are sensitive to static electricity. When handling any of these items, protect against static electricity by using wrist or ankle grounding straps and grounded working mats. When moving or storing items, use the antistatic bags supplied with the items. 6.
Table 6-1 Cover Display Assembly, Field Replaceable Units (FRUs) FRU Description Reference FRU Description Paragraph No. Reference Paragraph No. Inverter Board, DSSTN 10.4" 6.5.9 LCD Cover, DSSTN 10.4", 450 6.5.9 Inverter Board, TFT 9.4" 6.5.9 LCD Cover, TFT 9.4", 450T 6.5.9 Display Assembly, 10.4" DSSTN 450 6.5.8 Bezel, DSSTN 10.4", 450 6.5.9 Display Assembly, 9.4" TFT 450T 6.5.8 Bezel, DSSTN 10.4", 455 6.5.9 Slide Pot Board, DSSTN 10.4" 6.5.9 Bezel, TFT 9.4", 450T 6.5.
Table 6-2 Base Assembly, Field Replaceable Units (FRUs) FRU Description Reference Paragraph No. FRU Description Reference Paragraph No Main Board Assembly 6.5.16 Touch Pad Assembly 6.5.11 Memory Board Assembly 6.5.15 Heat Sink Assembly 6.5.6 Serial IR Board Assembly 6.5.12 HDD Cable 6.5.4 Primary Battery Board Assembly 6.5.13 FDD Cable 6.5.4 Secondary Battery Board Assembly 6.5.17 HDD Cover Assembly 6.5.4 Power Supply Board Assembly 6.5.14 HDD Holder Assembly 6.5.
6.5 Notebook Subassembly Removal and Replacement Procedures The following paragraphs contain field service-level removal/replacement procedures for the Notebook. c 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. 2.
6.5.2 Removing/Replacing PCMCIA Options The procedure for removing and replacing the PCMCIA options is as follows: 1. Turn off the computer. 2. Remove the PCMCIA device(s). 3. To replace the PCMCIA Device, open the cover door and insert the device. Reinstall any external cabling required for the device. 6.5.3 Removing/Replacing the Floppy Drive To remove and replace the Floppy Drive, perform the following procedure: c n 1. Remove the battery as described in Paragraph 6.5.1 above. 2.
3. Turn the computer over so that the Hard Drive panel is on your right side (See Figure 6-3). Press down on the circular bump with your thumb to release the hard drive cover; remove the cover and lay aside for later reinstallation. 4. Using finger pressure, slide the metal cover downwards toward the edge of the notebook; then lift upwards to remove the metal cover. 5.
6.5.7 Removing/Replacing Dual Inline Memory Modules (DIMMS) To remove and replace the expansion memory, use the following procedure: 1. Loosen the keyboard assembly (but do not disconnect keyboard cables) as described in steps 1 through 5 of Paragraph 6.5.5). 2. Remove the Heatsink as described in Paragraph 6.5.6. 3. Using the back edge of the keyboard as a hinge, lift the front edge of the keyboard up and lay it against the LCD assembly. 4.
6.5.8 Removing and Replacing the Cover-Display Assembly To remove the cover-display assembly, perform the following procedure: 1. Remove the keyboard and heatsink as described in paragraphs 6.5.5 and 6.5.6 respectively. 2. Remove the cable cover below the display by lifting upwards on the front edge of the cover. 4. Unplug the video cable that mates with the Main Board. 5. With the main video cable out of the way, two smaller cables are visible. Unplug the rightmost cable. 6.
8. Reinstallation of the Inverter Board is the reverse of steps 1 through 7 above. 6.5.10 Opening/Replacing the Top Case Assembly To remove/replace the Top Case Assembly, perform the following procedure: 1. Remove the Keyboard Assembly and Heat Sink Assembly as described in Paragraphs 5.5.5 and 5.5.6. 2. Remove the four screws that secure the Top Case Assembly to the base. Note that the screw at the rear of the opening is shorter than the remaining three screws. 3.
Figure 6-5 Touchpad Removal/Replacement 6-12 Field Service
6.5.12 Removing/Replacing the SIR Board To remove and replace the SIR Board, perform the following procedure: 1. Remove the Top Case Assembly as described in paragraph 6.5.10. 2. Unplug the SIR Board cable connector from the Main Board (small leftmost cable connector at J8 as shown in Figure 6-6). 3. Remove the SIR Board from the notebook. 4 Replacement is essentially the reverse of steps 1 through 3 above.
6.5.13 Removing/Replacing the Primary Battery Board To remove and replace the Primary Battery Board, perform the following procedure: n 1. Remove the Top Case Assembly as described in paragraph 6.5.10. 2. Disconnect the cable located next to the HDD Connector. 3. Remove the two screws that secure the board to the plastics and remove the board. 4. Replacement is essentially the reverse of steps 1 through 3 above.
6.5.14 Removing/Replacing the Power Supply Board Assembly To remove and replace the Power Supply Board Assembly, perform the following procedure: 1. Remove the Top Case Assembly as described in paragraph 6.5.10. 2. Remove the metal shield that covers the Power Supply Board. 3. Using a plastic stick, lift up on the end of the board that is adjacent to the processor. The board assembly snaps out. Remove board from unit. 4. Replacement is essentially the reverse of steps 1 through 3 above.
2. Remove the Top Case Assembly as described in Paragraph 6.5.10. 3. Using a plastic stick, lift up on the left and right edges of the board. The board assembly snaps out. Lift the board out of the unit. 4. Reassembly is the reverse of steps 1 through 3 above. Figure 6-9 Memory Board Removal 6.5.16 Removing/Replacing the Main Board To remove and replace the Main Board Assembly, perform the following procedure: 6-16 1.
Phillips-head screws as they are part of the PCMCIA connector hardware. 9. Using a 5 mm hex driver, remove the hex nut adjacent to the display cable connectors. 10. Lift up along the front edge of the Main Board Assembly until it clears the hard drive cavity; then pull the board forward and out of the plastics. 11. Remove the secondary Battery and transfer to the replacement Main Board (reference Paragraph 6.5.17). 12 Reassembly is essentially the reverse of steps 1 through 10 above.
1. Remove the Main Board Assembly as described in paragraph 6.5.16. 2. Carefully slide the secondary Battery Board Assembly from its right angle connector and remove board from unit. 3. Replacement is the reverse of steps 1 and 2 above.
Appendix A Self-Test Error Messages A.1 Introduction This appendix contains reference data useful in diagnosing and correcting self test errors.
Error Message Corrective Action Keyboard Interface Error Cycle Power to Notebook. If problem persists Memory Size Mismatch Enter and then exit the System Configuration Setup in the Setup utility. Missing operating system Correct the HDD type and reboot. Refer to the specification label pasted on the back side of the notebook or attached to hard disk drive. Non-system disk or disk error.
Checkpoint No.
Checkpoint No.
Checkpoint No.
Appendix B Connector Pinouts B.1 Introduction This appendix contains connector pinout data for the Extensa 450 Series Notebook Computers. Table B-1 PS/2 Mouse/Keyboard Port (J2) Pin Assignments Pin No. Pin Name Pin No. Pin Name 1 DATA 4 VCC 2 XDATA 5 CLOCK 3 GND 6 XCLOCK Table B-2 Parallel Port (J3) Pin Assignments Pin No. Pin Name Pin No.
Table B-3 LCD VR Board Connector Pin Assignments Pin No Pin Name Pin No Pin Name 1 DCBATIN 5 GND 2 CCFT_ON 6 CCFTID 3 FPVEE 7 GND 4 LCDVEE Table B-4 SIR Connector (J8) Pin Assignments Main Board Pin No Pin Name 1 VCC 2 N.C. 3 DSR2# 4 I/O Pin Name 1 VCC 2 GND SIR Output 3 SIR_RXD DTR2# SIR Input 4 SIR_TXD 5 SIR_EN SIR Input 5 SIR_EN 6 N.C. 6 N.C. 7 N.C. 7 N.C. 8 N.C. 8 N.C.
Table B-5 LCD Signal Connector (J12) Pin Assignments Pin No Pin Name Pin No Pin Name 1 N.C. 21 PLD16 2 LCD+5 22 PLC17 3 N.C. 23 PLD18 4 PMOD 24 PLD19 5 GND 25 GND 6 PSLD3 26 PLFS 7 PSLD2 27 PLP 8 PSLD1 28 PSHFCLK 9 PSLD0 29 DISPLAY 10 PSUD7 30 LCD+5 11 PSUD6 31 GND 12 PSUD5 32 LCDVEE 13 PSUD4 33 PUD0 14 GND 34 PUD1 15 GND 35 PUD2 16 N.
Table B- 6 Pin No FDD Connector (J11) Pin Assignments Pin Name Pin No Pin Name 1 VCC 11 GND 2 INDEX# 12 WDATA# 3 VCC 13 GND 4 DR0# 14 WGATE# 5 VCC 15 TRK0# 6 DSKCHG 16 WRTPRT# 7 MTR0# 17 GND 8 FDIR 18 RDATA# 9 3_MODE 19 INTFDD# 10 STEP# 20 HESEL Table B- 7 PCMCIA Connector (J21) Pin Assignments Pin No B-4 Connector Pinouts PC Card Interface ATA Interface Function Function 21 B_IOWR# B_IOWR# 22 B_A17 N.C. 23 B_A18 N.C. 24 B_A19 N.C. 25 B_A20 N.C.
Pin No PC Card Interface ATA Interface Function Function 36 B_INPACK# 37 B_REG#, 38 B_SPKR# B_LED 39 B_STSCHG# B_PDIAG 40 B_D8 B_D8 41 B_D9 B_D9 42 B_D10 B_D10 43 B_CD2# B_CD2# 44 GND GND 45 PCMCIA#, 46 GND, 47 GND, 48 B_D3 B_D3 49 B_CD1# B_CD1# 50 B_D4 B_D4 51 B_D11 B_D11 52 B_D5 B_D5 53 B_D12 B_D12 54 B_D6 B_D6 55 B_D13 B_D13 56 B_D7 B_D7 57 B_D14 B_D14 58 B_CE1# B_CS0 59 B_D15 B_D15 60 B_A10 N.C.
Pin No B-6 Connector Pinouts PC Card Interface ATA Interface Function Function 67 B_A8 N.C. 68 B_A13 N.C. 69 B_A14 N.C. 70 B_WE# N.C. 71 B_IREQ# B_IREQ 72 B_VCC B_VCC 73 B_VPP1 N.C. 74 B_A16 N.C. 75 B_A15 N.C. 76 B_A12 N.C. 77 B_A7 N.C. 78 B_A6 N.C. 79 B_A5 N.C. 80 B_A4 N.C. 81 B_A3 N.C. 82 B_A2 B_A2 83 B_A1 B_A1 84 B_A0 B_A0 85 B_D0 B_D0 86 B_D1 B_D1 87 B_D2 B_D2 88 B_IOIS16# B_IOCS16# 89 GND GND 90 N.C. N.C.
Table B-8 Memory Board Connector Pin Assignments (J13) Main Board Pin No Main Board Pin Name Main Board I/O Memory Board Pin No.
Main Board Pin No Main Board Pin Name Main Board I/O Memory Board Pin No.
Table B-9 Memory Board Connector Pin Assignments (J10) Main Board Pin No. Main Board Pin Name Main Board I/O Memory Board Pin No.
Main Board Pin No. Main Board Pin Name Main Board I/O Memory Board Pin No.
Connector Pinouts B-11
C PC-Doctor Diagnostics C.1 Introduction The Extensa Series Notebooks are shipped with PC-Doctor, a powerful diagnostics tool that can help you determine the hardware configuration of a local or remote system, benchmark its performance, analyze the performance of all subsystems, and perform a suite of interactive and non-interactive tests on attached devices (such as printers, joystick devices, VGA monitors, SCSI devices, CD-ROM drives).
C.3 Keyboard Navigation The keys shown in Table C-1 can be used to navigate through the PC-Doctor menus: Table C-1 PC-Doctor Key Assignments Key Description Cursor Keys Moves the highlighted pointer. ENTER Selects the highlighted option. ESC Cancels current function and goes back one step. F1 Activates context-sensitive help. F1 (twice) Activates the online documentation. PageUp/PageDn Moves the screen one page at a time F2 Prints the log.
C.5 PC-Doctor Menus There are several selections available from the menu bar of the PC-Doctor Diagnostics main menu. These include: • ? • Diagnostics • Interactive Tests • Hardware Info • Utility • Quit C.5.1 Online Help (?) 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. C.5.
• • • • Pass Count - selects how many times tests are repeated. The highest limit is 9999 times. Test Logging - opens the Log Options menu that lets you define how test results are printed or stored to a file during testing. By default, PC-Doctor produces a test result file at the end of testing if an error was detected. Switch LCD - lets you change your video output to either the internal LCD, external monitor, or simulscan mode.
C.5.4 Hardware Info Menu This menu contains functions that determine and report on the setup of the computer. None of these functions perform diagnostic tests; however any errors are included in the reports. The following functions are available from the Hardware Info menu: • System Configuration - lists main system configuration data.
• • • • Memory Debugger - displays memory contents in either hexadecimal, decimal, or ASCII form Remote Operation - enables remote control if available Tech Support Form - allows you to collect information about the current system Battery Rundown - quickly deep-discharges the NiMh battery of a laptop computer. C.6 Quitting PC-Doctor You can quit PC-Doctor in the following ways: • • • Exit (Alt-F4) Reboot - performs a cold boot.
Printed in U.S.A.
