Maintenance Manual TM Extensa 51x Series Notebook Computers 9811755-0001 April 1996
Copyright (©) 1996 Texas Instruments Incorporated All Rights Reserved — Printed in U.S.A. Extensa 51x Series Notebook Computers Maintenance Manual TI Part No. 9811755-0001 Original Issue: April 1996 Changes may be made periodically to the information in this publication. Such changes will be incorporated in new editions of this manual.
Contents Preface 1 General Description 1.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 . . . . Product Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.3 . . . . International Product Versions . . . . . . . . . . . . . . . . . 1-2 1.4 . . . . Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.4.1 . . . External Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.4.2 . . .
2.5.2 . . . Installing External Parallel Printer . . . . . . . . . . . . 2-7 2.5.3 . . . Installing External Serial Port Device . . . . . . . . . 2-8 2.5.4 . . . Installing External VGA Monitor. . . . . . . . . . . . . . 2-9 2.5.5 . . . Installing External Microphone . . . . . . . . . . . . . . 2-10 2.5.6 . . . Installing External Audio Input Devices . . . . . . . . 2-10 2.5.7 . . . Installing External Audio Output Devices. . . . . . . 2-10 2.6 . . . . Installing the AC Power Adapter . . . . . . . . . . .
4.2.3 . . . Video Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4.2.4 . . . Hard Disk Subsystem . . . . . . . . . . . . . . . . . . . . . 4-5 4.2.5 . . . Floppy Diskette Drive Subsystem . . . . . . . . . . . . . 4-5 4.2.6 . . . PCMCIA Subsystem . . . . . . . . . . . . . . . . . . . . . . . 4-6 4.2.7 . . . Power Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 5 Troubleshooting Procedures 5.1 . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.5.8 . . . Removing and Replacing the Display Assembly . . 6-13 6.5.9 . . . Removing and Replacing the Inverter Board . . . . . . . or Contrast Board . . . . . . . . . . . . . . . . . . . . . . . . 6-13 6.5.10 . . Removing/Replacing the Touchpad Assembly . . . 6-14 6.5.11 . . Removing/Replacing the Smart Battery Board . . . . . . . Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15 6.5.12 . . Removing/Replacing the Charger/Power Supply . . . . . . . Board Assembly . . . . . . . . . .
Preface Introduction This manual provides installation, operation and servicing data for the Extensa 51x Series Notebook Computers. Intended Audience This manual is primarily intended for use by qualified service technicians but contains information useful to non-technical users.
Other Manuals About the System The following documents provide additional information related to the Extensa 51x Series: • Extensa Series Notebook Computer User’s Reference Manual contains reference information regarding the Extensa Series Notebook Computer software including the TI custom utilities.
1 General Description 1.1 Introduction This manual contains field and factory level servicing information for the Texas Instruments Extensa 51x Series of Notebook Computers (Figure 1-1). This section provides a general overview and specifications for the Extensa 51x Series Notebook Computers. Figure1-1 Extensa 51x Series Notebook Computer 1.2 Product Models The two initial offerings in the 51x Series are differentiated by the software installed on the system at the factory.
Table 1-1 Extensa 51x Series Notebook Computers Model 510 • U.S. Version Windows 95 or Windows for Workgroups • Non U.S. Versions Windows 95 1.3 Model 515 Windows 95 Plus Microsoft Works, Quicken SE, Lotus Organizer, and Microsoft Entertainment Pack International Product Versions The Extensa 51x Series Notebooks are available in one of 15 domestic and international configurations as listed in Table 1-2.
• • • • 540 or 810 Million Byte Hard Drive (user replaceable) Support for two PCMCIA Type I or II options or one Type III PCMCIA option card Ergonomic keyboard with palm rest (2.7 mm travel); built-in touchpad pointing device Most standard external device interfaces including serial, parallel, PS/2®, and external VGA. • 3.5-inch, 1.44 MB Floppy Drive • 10.4 inch Dual Scan Color LCD • • AC Adapter with autosensing (100 VAC to 240 VAC, 50 to 60 Hz); 34 Watts of DC output power 10.
Cover Release Button Five Status LEDs Primary Battery Pack (Accessible from Right Side) Standby/Suspend Button Speaker Setup Button Touchpad Pointing Device Power On/Off Button Touchpad Select Buttons Type I /11 or III PCMCIA Slot Hard Drive (Accessible from Underneath) Audio Line/Mic Jacks Hard Drive Cover HDD Release Latches Primary Battery Cover VGA, Serial and Parallel Connector Door PS/2 Connector Power In Connector Floppy Drive Assembly Figure 1-2 Extensa 51x Series Features 1-4 General D
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 palmrest. With light pressure, 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 . T o u c h p ad Pointing Device Select Buttons Figure1-4 Extensa Touchpad 1.4.
• "Inverted T" Cursor Control Key layout The notebook keyboard is available in the following versions: • • n U.S. English Keyboard, TI Part No. 9811398-0001- This version (also known as the domestic version) is generally used in the United States and Canada. International versions include: • United Kingdom Keyboard, TI Part No. 9811398 -0002 • German Keyboard, TI Part No. 9811398 -0003 • French Keyboard, TI Part No. 9811398 -0004 • Spanish Keyboard, TI Part No.
E sc F1 F3 F2 @ 2 1 F4 F6 F5 F7 % 3 4 R T F9 PrtSc ^6 5 E W Q F8 NumLock F10 SysRq ScrLock & 7 8 9 7 8 9 A Ca ps Lock S X Z Shift D F C G V H B N C tr l P PgDn Pg Dn Inser t Delet e { } [ ] 6 J K L 1 2 3 Enter M 0 Fn Break O 5 4 F12 Pause 0 I U Y F11 Shift 0 Home Alt End Figure1-5 Extensa Keyboard 1.4.3.
Caps Lock Num Lock Hard Drive Activity Scroll Lock Status LEDs Sleep Mode Touchpad Pointing Device Standby/Suspend Button Setup Button Charging LED Power LED Touchpad Select Buttons Power On/Off Button Figure1-6 Extensa Series Controls and Indicators 1.4.4 Standard Power Features Notebook power for the Extensa 51x Series Notebook Computers is provided by an AC Adapter and a rechargeable 10.
• Microsoft Works • Quicken SE • Lotus Organizer • Microsoft Entertainment Pack No. 4 1.4.6 Notebook Expansion Capabilities Expansion capabilities built into the Extensa notebook series include: • • • User installable expansion RAM memory (to a maximum of 40 MB); notebook accepts either fastpage mode or EDO RAM modules. A Cable-Connect PS/2 Numeric Keypad option, TI Part No. 2581381-0001, can be attached to the external PS/2 Port.
Memory Expansion Sockets Floppy Drive Assembly Charger/Power Supply Board Display Assembly Speaker Assembly LED/Switch Board Assembly Top Case Assembly To uc hPa d Assembly Main Board Assembly Battery Board Pentium CPU Hard Drive Assembly Hard Drive Cover Hard Drive O uter C ov er Battery End Co ve r Battery P ac k Floppy Drive Assembly Bottom View Figure 1-7 Notebook Assemblies 1.6.
The Display Assembly attaches to the System Base Assembly through four top mounted screws. 1.6.2 System Base Assembly As shown in Figure 1-7, the majority of the notebook’s field-replaceable units (FRUs) are located in the system base assembly.
Table 1-3 Extensa 51x Notebook Features Specifications Model 510 Model 515 Memory: Standard: 8 MB 8 MB Maximum 40 MB 40 MB LCD Type: 10.4" Dual Scan Color 10.4" Dual Scan Color Simultaneous LCD/Ext. VGA Yes Yes Video RAM Size: 1 MB 1 MB Video Bus VLBUS with Graphics Accelerator VLBUS with Graphics Accelerator Ergonomic Keyboard Yes Yes Built-In Touchpad Yes Yes Floppy Drive: 3.5", 1.44 MB 3.5", 1.
1.8 Agency Approvals All Extensa 51x Series products meet the following standards: • Underwriter’s Lab (UL) Standard 1950 (safety) • Underwriter’s Lab (UL), CN Listed (C22.2 No.
2 Installation 2.1 Introduction This section contains unpacking and preparation for use instructions for the Extensa 51x 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: n 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.
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 screwdriver and gently lifting up along the front edge of the keyboard. 5. Using the back edge of the keyboard as a hinge, lift the front edge of the keyboard up and lay it against the display. 6. Insert the edge of the DIMM Board into the lower connector (refer to Figure 2-1). Use a rocking motion to fully insert the module.
2.3.2 Installing PCMCIA Options The Notebook has provisions for two Type I/Type II or one Type III PCMCIA option card. Use the following procedure to install a PCMCIA option: 1. Review the installation instructions supplied with the PCMCIA option card(s). 2. Open the PCMCIA compartment cover on the left side of the notebook. 3. To insert a PCMCIA card, align the card with the socket and slide the card into the socket until it locks into place. 4.
2.3.3 Installing the Optional Numeric Keypad An optional numeric keyboard can be attached to the notebook via the notebook PS/2 connector as shown in Figure 2-3. External PS/2 Port (Mouse/Keyboard Port) External Numeric Keypad Option Figure 2-3 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 (refer to Figure 2-4 for port assignments).
2.5.1 Installing an External Keyboard/Mouse As shown in Figure 2-5, the notebook has provisions for two external PS/2 compatible devices (keyboard, mouse, etc.) that may be attached to the notebook. The pinouts for the 6-pin Mini-DIN connectors are also provided in Figure 2-6. Figure 2-5 PS/2 Port Assignments/Pinouts To install an external keyboard or external PS/2 mouse on the notebook, use the following procedure: 2-6 Installation 1. Ensure that the notebook is powered off. 2.
2.5.2 Installing External Parallel Printer The Notebook is equipped with a bidirectional, ECC/EPP compatible, 25-pin parallel printer port. The connector pinouts and connector location are shown in Figure 2-6. 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.
2.5.3 Installing External Serial Port Device The notebook contains an RS-232 serial port with a male DB-9 connector as shown in Figure 2-7. The serial ports are used to interconnect such devices as: • External Modem • Serial Printer • Any device that uses an RS-232 interface To connect a printer to the notebook, ensure that both the notebook and the printer are turned off.
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 2-8. 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 rear of the notebook. 3.
2.5.5 Installing External Microphone An external microphone can be attached to the notebook using the leftmost audio connector (when viewed from the rear of the notebook). When the external microphone is installed and the unit powered up, the internal microphone is disabled. 2.5.6 Installing External Audio Input Devices The middle audio jack on the rear of the notebook allows you to connect an external sound source (e.g. tape player, radio, etc. ) to the notebook. 2.5.
2.7 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).
3 Operating Instructions 3.1 Introduction The first two subsections describe the Extensa 51x 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, refer to the Extensa Series Notebook Computer Users Guide. 3.
Caps Lock Num Lock Hard Drive Activity Scroll Lock Status LEDs Sleep Mode Touchpad Pointing Device Standby/Suspend Button Setup Button Charging LED Power LED Touchpad Select Buttons Power On/Off Button Figure 3-1 Extensa Series Controls and Indicators 3.2.1 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 Touchpad Controls The Extensa 51x Series Notebook Computers are equipped with a built-in mouse device called "the Touchpad" physically located at the bottom of the keyboard (refer to Figure 3-1). The cursor is positioned by touching and dragging your finger in the direction you want the cursor to go. The select functions are performed either by tapping the touchpad or by pressing the two buttons (switches) at the bottom of the keyboard.
• 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. • • • • Always remove a floppy from the floppy drive before turning off the computer. Never transport the computer with a floppy in the floppy drive. Doing so can damage the drive head.
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 actions: • 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.
3.3.7 Restoring Missing System Files When you power up the Notebook, it automatically checks for certain key files that must be present for normal system operation. If any of these files are accidentally erased as indicated by error message, insert the Windows 95 Startup diskette and reboot the system. This will allow you to boot up and troubleshoot your system. 3.3.
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 • Power Subsystem A functional block diagram of the Extensa Notebook is shown in Figure 4-1. 4.2.
PCMCIA Option Slot(s) PCMCIA Adapter State Machine & Glue Logic Intel 100 MHz Pentium Processor System Controller MAIN BOARD Clock Generator M e mo ry Board RAM Expansion Modules SD BUS Drivers/ Receivers RS-232 Serial Port XD BUS SYSTEM & VGA BIOS Super I/O Controller Internal Floppy Drive Internal Hard Drive Parallel Port 512KB Video RAM Input From AC Adapter XD BUS Video Controller C&T 65540 Power Supply Section Keyboard/PS2 Mouse Logic Internal Tou chp ad Internal Keyboard Figure 4-1
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, and serial and parallel ports.
• • Integral address decoder - provides selection of all primary and secondary ISA addresses including COM1-4 and LPT1-3. Enhanced Power Management Function • Special configuration registers for power down • Enhanced programmable power-down and wake-up modes • Auto power-down and wake-up modes • 3 special pins for power management • Typical current consumption during power-down is less than 10A 4.2.
4.2.3.1 External VGA Drive Capability On the Extensa notebook, 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 (up to 1024 x 768 x 256 colors. 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.
4.2.6 PCMCIA Subsystem The notebook is equipped with an on-board PCMCIA host adapter PCMCIA Controller) and sockets to support Type I, Type II or Type III options. The PCMCIA Controller has the following features: • Single-chip PCMCIA host adapters • Direct connection to ISA (PC AT) Bus • Direct connection to PCMCIA 2.0 Bus • PCMCIA 2.0- and JEIDA 4.
4.2.7.1 Power Management The notebook is equipped with a power management function that minimizes battery usage for prolonged battery operation and automatically recharges the batteries when the notebook is used with an AC adapter. The power management modes and warnings include the following: • LCD standby mode • Hard disk standby mode • System standby/suspend mode • Battery-low warning • Standby/suspend upon battery low 4.2.7.
Table 4-4 Primary Battery Pack Specifications Function 4-8 Specifications Battery type NiMH (Nickel Metal-Hydride) Cell structure 9 cells per pack (in series) Nominal voltage 10.
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 ? NO YES WHEN POWER SWITCH SET TO ON,, NO INDICATION OF POWER; SCREEN DARK, STATUS LED's EXTINGUISHED DEAD COMPUTER SYMPTOMS ? YES SEE PARAGRAPHS 5.3.1 & 5.3.2 NO SET POWER SWITCH TO ON. SELFTEST AUTOMATICALLY RUNS RUN SELF TEST ERROR MESSAGE ? YE S SEE PARAGRAPH 5.3.3 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 (refer to Paragraph 5.3.5). For indicated hardware failures, cycle power and repeat self test to verify that a hard failure has occurred.
• • • Measure the voltage at the AC Outlet or plug in a known good appliance (EG. a lamp) to verify that voltage is present. If the voltage is OK, try replacing the AC Adapter Check to see that the battery pack is installed correctly (try using a recharged battery pack if battery is discharged). 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.
5.3.2 Troubleshooting a Display Problem If the LCD remains blank when you turn on the computer, and the status indicators light, check the following controls on the display (refer to Figure 3-1): • • • • LCD Standby mode - If the LCD backlight remains off, even with the Brightness and Contrast Controls set to their highest positions (refer to Section 3), the LCD may be in Standby Mode. Press the Standby or Power button to resume the system.
• • Faulty phone line - Connect a telephone to the line and listen for a dial tone. Software program - Check to ensure that you have installed the software correctly. 5.3.
• Group of special purpose utilities to run other tests from PC-Doctor, perform a virus scan of the internal RAM system, edit configuration files, surface scan hard drives, measure system performance, open a DOS prompt, provides terminal access to devices connected to serial ports, supports memory debug operations, enables remote operations, permits deep discharge of notebook batteries and provides an extensive test reporting function.
5.3.5.
5.3.5.3 Creating a Bootable Floppy Diskette Prior to using PC-Doctor, create a bootable floppy diskette using the following procedure: 1. Power up the unit; when unit displays message, "Starting Windows 95", press F8. Choose Command Prompt Only from menu. 2. Using DOS, format a floppy diskette. 3. From the A: prompt, copy the basic MS-DOS files to the diskette using the following command: Format A: /F:1440 /S where the value 1440 is the capacity of the diskette (1.44 MB in this example). 4.
n Note: If PC-Doctor detects a virus, it will stop with an error message. You must then use one of the standard virus detection and removal programs to remove the virus. 5.3.5.5 Quitting PC-Doctor To exit PC-Doctor, select the Quit pull down menu and then select the Quit to DOS option. n Note: For additional information, press F1 twice to access the online Reference manual for PC-Doctor.
6 Field Service 6.1 Introduction This section contains preventive and corrective maintenance procedures for the Extensa 51x 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.
6.3 Required Tools and Equipment All notebook computer corrective maintenance procedures can be performed using the following tools: • • Small flat-blade screwdriver • Small Phillips screwdriver • Hexagonal Screwdriver • Plastic Stick • c Tweezers Conductive mat/wrist or ankle grounding strap system for electrostatic voltage protection. Caution: All boards, options and peripherals contain components that are sensitive to static electricity.
LCD Assembly LCD Cover Power Inverter Board Contrast Board Bezel (Removed for Clarity) Figure 6-1 Cover-Display Assembly FRUs Table 6-1 Cover-Display Assembly, Field-Replaceable Units (FRUs) FRU Description TI Part No. Reference Paragraph No. Inverter Board, DSSTN 10.4" 9811361-0001 6.5.9 Display Assembly, 10.4" DSSTN 50X, 51X 9811363-0001 6.5.9 Bezel Assembly, DSSTN 10.4", W/O label 9811373-0001 6.5.9 LCD Panel, DSSTN, 10.4", 50X/51X 9811362-0001 6.5.
FRU Description TI Part No. Reference Paragraph No. Cable Assembly, Inverter (12P) 9811386-0001 6.5.8 LCD Cover, DSSTN, 10.4 inch 9811372 6.5.8 6.4.2 System Base Assembly As shown in Figure 6-2, the System Base Assembly houses a variety of field-replaceable subassemblies and components. The FRUs and paragraph references for removal/replacement procedures are listed in Table 6-2. Table 6-3 contains a listing of Customer (non-technical user) replaceable units (CRUs) and associated TI Part Numbers.
FRU Description TI Part No. Reference Paragraph No. Keyboard Assembly, SWD, EXT50x/51x 9811398-0010 6.5.2 Keyboard Assembly, DEN, EXT50x/51x 9811398-0012 6.5.2 Keyboard Assembly, NOR, EXT50x/51x 9811398-0013 6.5.2 Keyboard Assembly, BELG, EXT50x/51x 9811398-0014 6.5.2 Keyboard Assembly, FIN, EXT50x/51x 9811398-0015 6.5.2 FDD Cable 9811366-0001 6.5.5 HDD Cable 9811365-0001 6.5.6 Upper Case Assembly 9811370-0001 6.5.4 Lower Case Assembly (for non-U.S.
Table 6-3 Notebook CRUs (Customer-Replaceable Units) CRU Description TI Part No. Reference Paragraph No. AC Adapter Assembly 9803931-0001 Sec. 2 Internal Battery Pack, Ni-MH 9803928-0001 6.5.1 4 MB RAM SIMM 9803932-0001 6.5.7 8 MB RAM SIMM 9803950-0001 6.5.7 16B RAM SIMM 9803933-0001 6.5.7 Door, PCMCIA 9811381-0001 Ref Rear Door 9811393-0001 Ref Rubber Foot 9811382-0001 Ref 6.
3. Grasp the ribbon loop on the battery and pull the battery out of the compartment. 4. When replacing the battery, insert the end opposite the ribbon loop with the battery notches pointing upward. Slide the battery into the compartment and replace the battery door. 6.5.2 Removing/Replacing the Keyboard Assembly The procedure for removing and replacing the keyboard assembly is as follows: n c 1. Turn off the computer and disconnect the AC power adapter (if it is attached). 2.
1 Slide Keyboard Release Tabs toward front of notebook. Using a small flat blade screwdriver, gently pry keyboard up along the front edge. 2 Remove ZIF Cables from Main Board Figure 6-2 6.5.3 Removing/Replacing the Keyboard Removing/Replacing the Heat Sink To remove and replace the heat sink, perform the following procedure: 1. Disconnect the AC adapter from the Notebook. 2. Remove the battery as described in Paragraph 6.5.1. 3.
Release keyboard assembly and tilt up against Display. Remove set of four screws holding heat sink Heat Sink Assembly Figure 6-3 Removing/Replacing the Heat Sink Assembly 6.5.4 Opening/Replacing the Upper Case Assembly To remove/replace the Top Case Assembly, perform the following procedure: 6-10 Field Service 1. Remove the AC Adapter, battery pack, any installed PCMCIA options, the Keyboard Assembly and Heat Sink Assembly as described in Paragraphs 6.5.1 through 6.5.3 2.
4. Using a plastic stick, unlock the ZIF connector located near the Touchpad and remove the cable from the connector. Also, remove the 2-connector speaker cable from the Main Board Connector. 5. Remove the cable cover below the display by lifting upward on the front edge of the cover. 6. Disconnect three cables (two to the LCD and one to the LCD/Switch Board). 7. Rotate the notebook so that the rear of the unit is facing you; open the rear door assembly. 8.
3. Turn the computer over so that the Hard Drive panel is on your right side. 4. Press down on the two cover release tabs and slide to the left; lift up on the drive door and remove from the notebook. 5. Remove the two screws near the drive connector cable. 6. Insert a small blade straight slot screwdriver into the recess in the plastics near the front edge of the metal cover and gently move the drive back; lift upward when the metal lip clears the plastics. 7.
6.5.7 Removing/Replacing DIMM Modules To remove and replace DIMM memory modules, use the following procedure: 1. Loosen the keyboard assembly (but do not disconnect keyboard cables) as described in Steps 1 through 4 of Paragraph 6.5.2. 2. 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. 3. Push the two metal springs away from the board edge and remove the DIMM board. 4.
c Caution: If the notebook is powered up with the LCD bezel removed, you can be exposed to high voltages which could result in shock and equipment damage. Ensure that the batteries and AC adapter are removed from the notebook when working on the LCD/Display assembly. 1. Use a narrow piece of plastic or pointed tweezers to apply light pressure to one edge of the lower screw covers. The lower screw covers will bow outward and can be removed. 2.
6.5.11 Removing/Replacing the Smart Battery Board Control Board To remove and replace the Smart Battery Control Board, perform the following procedure: 1. Remove the Upper Case Assembly as described in Paragraph 6.5.4. 2. Disconnect the battery cable located next to 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. Using a small flat blade screwdriver and apply light pressure in a rocking motion to remove the hard drive cable connector. 7. Remove four Phillips-head screws (one on each of the four sides of the heat sink opening) securing the board to the base assembly. Do not remove the smaller screws which are part of the PCMCIA connector hardware. 8. Remove the Phillips head screw at the left rear of the Main Board. 9.
3. Gently pry to the left (with pin 1 alignment at the bottom right as shown in Figure 6-6). 4. Gently remove the chip from the socket. 5. To install a chip into a vacant CPU socket, insert a flat blade screwdriver into the opening at the right side of the processor socket (refer to Figure 6-6) and pry to the left to unlock socket. 6. Insert the processor chip into the socket. 7.
A Self Test Error Messages A.1 Introduction This appendix contains reference data useful in diagnosing and correcting self test errors. Table A-1 Self Test Error Messages Error Message Corrective Action CMOS Battery Bad Replace Main Board CMOS Checksum Error Cycle power to Notebook; if problem persists, remove and replace Main Board.
Error Message Corrective Action Keyboard Interface Error Cycle Power to Notebook. If problem persists, replace keyboard; if problem persists, replace Main Board. 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.
B PC-Doctor Diagnostics B.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).
B.3 Mouse Navigation You can use a mouse to navigate through PC-Doctor (alternately use the arrow keys from the keyboard). Use the left mouse button to choose objects (menu entries and action codes in square brackets). Use the right mouse button as you would the Esc key to take you back to your previous step. Click on the ? in the upper left corner of the screen for context-sensitive help Menus. B.
• All Tests - allows you to select which tests to run. You can also specify special testing options. By pressing F2, the following options are available: – n Halt On Errors - interrupts testing if an error is detected. Note: External serial and parallel port testing requires loopback plugs (not provided with this software). – External Loopback - tests external loopback of COM and LPT ports. You can select the type of loopback adapter you want to use.
• • • Printer Test - tests for the correct acceptance and execution of common printer control commands. Printer test information is stored in printer test files with an extension of .PDP. SCSI Test - PC-Doctor contains SCSI device testing features that work if you have an ASPI or CAM device driver loaded. You can select which SCSI host adapter to work with if you have more than one SCSI adapter present.
• Edit CMOS RAM - gives access to CMOS RAM data • File Editor - allows editing of configuration files • Surface Scan Hard Disk - checks for defects on the hard disk • Benchmark System - measures system performance • DOS Shell - opens a DOS prompt from within PC-Doctor • • • • • Terminal - gives access to devices connected to a serial port (such as a modem) Memory Debugger - displays memory contents in either hexadecimal, decimal, or ASCII form Remote Operation - enables remote control if availabl
Printed in U.S.A.
