Texas Instruments Extensa 660 Series, Maintenance Manual

Page 1: ...Maintenance Manual ExtensaTM 660 Series Notebook Computers 9813214 0001 Rev A February 1997 ...

Page 2: ...tion The manager must rely on judgement of what is best for his or her business Address all correspondence regarding orders to Texas Instruments P O Box 6102 M S 3255 Temple Texas 76503 Extensa and livegear are trademarks of Texas Instruments The icons in the Windows Notebook and Startup groups are copyrighted by Texas Instruments Kensington is a registered trademark of Kensington Microware Ltd PS...

Page 3: ...es physical and electrical specifications Section 2 Installation Describes how to unpack install options and begin using the notebook Section 3 Operating Instructions Describes the notebook computer operating controls and indicators and basic operating procedures required to support maintenance operations Section 4 Theory of Operation Provides a block diagram level theory of operation for the Exte...

Page 4: ... Series Notebook Computers Users Guide Contains user reference information for the Extensa 660 Series Notebook Computers PC Doctor Help and Technical Reference online Ordering Parts and Supplies To order a copy of any TI publication or to order option kits spare parts or supplies for your system contact your TI reseller Telephone Toll free 1 800 TI TEXAS ...

Page 5: ...es 1 9 660 Series Connectivity Features 1 9 Expansion Capabilities 1 10 Advanced PCI Card Options 1 11 PCMCIA Card Options 1 11 Notebook Batteries 1 12 Determining Battery Charge Level 1 12 External Battery Charger Option 1 13 Standard Test Features 1 13 Power On Self Test 1 13 PC Doctor Diagnostics Program 1 13 Extensa 660 Series Specifications 1 15 Regulatory Agency Approvals 1 18 Section 2 Inst...

Page 6: ...out 2 15 Section 3 Operating Instructions Introduction 3 1 Controls Indicators 3 1 Power On Off Switch 3 2 Notebook LEDs 3 2 LED Icons 3 2 Keyboard Hot Key Sequences 3 3 Windows 95 Special Keys 3 4 DOS Special Keys 3 5 Configuring the Glidepad 3 5 Using a CD ROM Drive 3 6 Auto Speed Max Speed Settings 3 6 Inserting a CD into the Drive 3 6 Handling CDs 3 6 Built in Sound System 3 6 Adjusting the Vo...

Page 7: ...rocess 5 1 Troubleshooting Procedures 5 3 Troubleshooting a Power Supply Problem 5 3 Troubleshooting a Display Problem 5 3 Fault Isolation Using Power On Self Test 5 5 POST Error Messages 5 5 POST Beep Error Messages 5 8 Run Time Error Messages 5 11 PCMCIA Modem Problem 5 12 General Fault Isolation Procedures 5 12 Fault Isolation Using Diagnostics 5 15 PC Doctor In DOS Mode or DOS Windows 5 15 Sup...

Page 8: ...ive Assembly 6 15 Removing Replacing the Keyboard Assembly 6 16 Removing Replacing the Heat Sink Assembly 6 17 Removing Replacing the CPU PWB Assembly 6 18 Removing Replacing the Display Assembly 6 19 Removing Replacing the Top Cover Assembly 6 20 Removing Replacing the LED PWB Assembly 6 21 Removing Replacing the Glidepad Assembly 6 22 Removing Replacing the Power Supply PWB Assembly 6 23 Removin...

Page 9: ...ctions contain information common to all members of the Extensa 660 Family of Notebook Computers This section provides a general overview of the Extensa 660 Series describes the standard and optional features and identifies the major assemblies and subassemblies This section also contains detailed functional and environmental specifications for the Extensa 660 Series Notebook Computers Figure 1 1 ...

Page 10: ...sa 660 Series Notebook Characteristics Feature 660CD Series 660CDT Series CPU 166 MHz Pentium with MMX Technology 166 MHz Pentium with MMX Technology Standard Onboard Memory 16 MB 16 MB Maximum Expandable Memory 80 MB 80 MB HDD 1 4 GB 2 1 GB LCD Display Type 12 1 inch DSTN 11 3 inch TFT Video Memory 1 0 MB 1 0 MB SVGA Supports up to 1024 x 768 by 256 color external monitors Supports up to 1024 x 7...

Page 11: ...owing user removable devices 3 5 inch 1 44 MB Floppy Disk Drive CD ROM Drive Second Rechargeable Battery Pack option Advanced video features DSTN or TFT internal color display Simultaneous display with external CRT 1 0 MB video memory Fast video graphics accelerator Full motion video up to 30 frames per second using the Optional MPEG2 PC Card Built In 86 87 key keyboard Internal glidepad pointing ...

Page 12: ... or Type II PC cards at the same time or one Type III PC Card option Flexible set of external ports for desktop operation Fast infrared communication 4 Mb s PS 2 port for connecting an external keyboard numeric keypad or mouse 9 pin serial port for connecting external devices such as a modem or mouse Parallel port with EPP and ECP for connecting to a printer External VGA Port for attaching an exte...

Page 13: ...c are adjustable from the keyboard as described in Section 3 Media Bay Device CD ROM FDD or second Battery Release Latch Underneath Primary NiMH Battery Pack Glidepad mouse Select Buttons Notebook Release latch LCD Right Speaker Left Speaker Built in Keyboard Bottom of Notebook Battery Release Latch Primary Battery Media Bay Release Latch HDD Module Expansion Memory Compartment APCI Compartment Le...

Page 14: ...isplay Hot Key Sequences The display mode of operation LCD only Simultaneous LCD and external CRT and external CRT only modes is keyboard selectable using the following hot key sequences Fn Up Arrow and Fn Down Arrow control LCD screen brightness higher brightness setting uses more battery energy Fn Right Arrow lightens the LCD screen contrast Fn Left Arrow darkens the LCD screen contrast Fn F12 a...

Page 15: ...lt in 86 87 key keyboard Figure 1 3 compatible with the IBM enhanced 101 102 key keyboard The keyboard contains 12 programmable function keys an embedded numeric keypad Figure 1 4 and dedicated control keys hot keys Figure 1 3 Extensa 660 Series Keyboard Layout Figure 1 4 Embedded Numeric Keypad ...

Page 16: ...e TI startup screen CSL Support information Internet browser multimedia options and choice of wallpaper to customize different computer resources TI utilities such as wBattery wSetpower TISetup variety of device drivers including NeoMagic 2093 ESS 1878 Sound Device Drivers WinModem Device Drivers PC Card Bus Socket Services and Card Services Device Drivers and Windows 95 MPEG 1 Software Audio Vide...

Page 17: ...xtensa 660 Series notebooks includes most standard desktop ports including a serial port parallel port PS 2 port and external VGA port The 660 Series also includes an expansion bus port for connection to an external Port Replicator and a fast infrared FIR Port The external ports for the 660 Series are shown in Figure 1 5 and described in Table 1 3 Figure 1 5 660 Series External Ports Mic Input PS ...

Page 18: ...st Infrared Port 4 M b used for wireless communications between the notebook and an FIR equipped device such as keyboard another notebook printer etc Audio In Out Mic In Jacks Stereo audio line inputs stereo line outputs and external microphone input Expansion Bus 120 pin PCI Bus that supports an external Port Replicator Table 1 4 Extensa 660 Expansion Features Summary Expansion Feature Descriptio...

Page 19: ...rd Options The Notebook contains an onboard PCMCIA Controller and two 64 pin sockets that can accept up to two credit card size 14 5 mm Type I or Type II PCMCIA option cards or one Type III card The PCMCIA Card options install on the left side of the notebook Figure 1 7 and are removed using the PC Card Release levers Figure 1 7 Installing PCMCIA Card Options Bottom of Notebook Advanced PCI Compar...

Page 20: ...ristics of the available batteries are listed in Table 1 5 1 4 1 Determining Battery Charge Level As shown in Figure 1 8 the batteries used in the Extensa 660 have a series of lighted indicators that show the amount of charge remaining in the battery visible when the Charge Display button is pressed Figure 8 Battery Charge Indicators Table 1 5 Battery Specifications Primary Primary Secondary Type ...

Page 21: ... displays a descriptive error message and issues a series of coded beeps in case the display subsystem is not functioning If self test completes normally the computer displays the amount of memory tested loads the Operating System and Windows environment 1 5 2 PC Doctor Diagnostics Program The Extensa 660 Series Notebooks are shipped with PC Doctor for Windows a powerful diagnostics tool that can ...

Page 22: ...within PC Doctor that can be run locally or remotely simplify the task of determining system configuration data allocating and using system memory IRQ and DMA use what device drivers are installed what COM and LPT ports are assigned and what ports are available identifying partitioning data for fixed disk drive s determining the VGA setup information reading the software interrupts interrupt vecto...

Page 23: ...less 11 Million I O s per second DRAM Memory Size Maximum Expansion Size 16 MB DRAM 60 ns page interleaved 80 MB 16 MB DRAM 60 ns page interleaved 80 MB Flash ROM 256 KB 256 KB FDD Disk Storage Capacity Disk Size Drive Height Mode Standard Module 1 44 MB 3 5 inch disk 12 5 mm Choice of 720 KB 1 2 MB or 1 44 MB Standard Module 1 44 MB 3 5 inch disk 12 5 mm Choice of 720 KB 1 2 MB or 1 44 MB CD ROM ...

Page 24: ...ightness and contrast control and SimulSCAN control 1 1 SVGA 1 5 MB 32 bits 640 x 480 pixels bit mapped at 64K colors 600 x 800 at 64K colors 80 25 Function hot key brightness and contrast control and SimulSCAN control External CRT Monitor Interface Connector Type Monitors Supported 15 Pin female D type connector 640 x 480 with 16 7 million colors on CRT 800 x 600 with 65K colors on CRT 1024 x 768...

Page 25: ... IRQ3 2F8h COM3 IRQ4 3E8h COM4 IRQ4 2E8h Disable 9 Pin male sub D type connector EIA RS 232 D Asynchronous transmission 110 200 300 600 1200 2400 4800 9600 19200 Odd even mark space Data check odd even READY BUSY DC1 DC3 7 or 8 bit Yes COM1 IRQ4 3F8h COM2 IRQ3 2F8h COM3 IRQ4 3E8h COM4 IRQ4 2E8h Disable Parallel Port Connector Type EPP ECP Bidirectional 25 Pin DB 25 Connector EPP ECP Bidirectional ...

Page 26: ...ab UL Standard 1950 safety Canadian Standards Association CSA Standard 950 or CUL safety FCC CFR 47 Part 15 Subpart B FCC Level B Emissions Canadian Department of Communications DOC ICES Class B Emissions VDE EN60950 Safety EN 50082 1 Immunity ESD RFI EFT and Surge EN 50081 1 Emissions RFI EMI Harmonics and Flicker Approval Marks UL CUL VDE FCC and CE ...

Page 27: ...s Installing Desktop Devices Installing the AC Adapter Checking Out the System Installing the System Software Making Backups of System Software Loading Application Software 2 2 Unpacking Instructions 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 carton from the main shipping car...

Page 28: ...atic bags supplied with the items 1 Ensure that the notebook is powered off and the AC adapter disconnected from the AC outlet Also ensure that all batteries are out of the unit 2 Disconnect any peripheral device interface cables from the external interface connectors and remove any installed PCMCIA options 3 Turn the notebook over and locate the Expansion Memory Access Cover on the bottom of the ...

Page 29: ...k or 0V Suspend functions to operate correctly 2 3 2 Setting up the Software Note If you are using an operating system other than Windows 95 Windows for Workgroups or DOS you may need to re partition your hard disk drive to allow for the additional memory Check with your system administrator Memory Expansion Compartment With Cover Removed soDIMM Socket Installing soDIMM in Socket ...

Page 30: ...cedure Caution The Advanced PCI card option contains components that are sensitive to static electricity When handling the card and the internal parts of the computer protect against static electricity by using wrist or ankle grounding straps and grounded working mats When moving or storing items use the anti static bags supplied with the items 1 Ensure that the notebook is powered off and the AC ...

Page 31: ... install a PCMCIA option 1 Review the installation instructions supplied with the PCMCIA option card s 2 Hold the card at the end opposite the connector pins with the label side up Insert the card into an unused slot on the left side of the Notebook 3 If the option requires external cabling e g modem option connect external cabling at this time Note After installation of a PCMCIA option card Windo...

Page 32: ... 2 3 Installing PCMCIA Option Cards Note When installing a Zoomed Video option card the card must be installed in the upper card slot slot 0 or A Other option cards can be installed in either card slot PC Card Release Levers ...

Page 33: ...A PS 2 compatible Keyboard mouse or an optional PS 2 compatible numeric keypad may be installed on the notebook via the mouse connector on the left rear port as shown in Figure 2 4 Figure 2 4 PS 2 Port Pinouts Mouse Keyboard Connector Pin No Signal Name 1 2 3 4 5 6 MDATA KDATA MSGND MSVcc MCLK KCLK 4 2 1 3 5 6 ...

Page 34: ...7 18 19 20 21 22 23 24 25 PARALLEL PORT PINOUTS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 SIGNAL SPP MODE STB PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK BUSY PE SLCT AFD ERR Ground INIT SLIN Note Denotes Active Low LPT18 VCC PLP121 PLP122 PLP120 FDD 5V LP125 Busy PLP120 PLP121 PLP122 Ground FDD 5V LP125 Paper Out Auto Line Feed Select Error Initialize Printer Select In LPT 18 VCC ...

Page 35: ...al ports are used to interconnect such devices as External Modem Serial Mouse Serial Printer Any device that uses an RS 232 interface 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 external device If you are uncertain of what type connector the external device has refer to the technical manua...

Page 36: ... Figure 2 7 3 Power up the notebook computer first then turn on power to the monitor 4 Setup the notebook display mode for LCD only simultaneous LCD and CRT or CRT only under Windows 95 select the Change Display Utility under Windows for Workgroups use the WinMode Utility 5 Install the correct driver if required refer to the Monitor Installation Instructions supplied by the CRT vendor 1 2 3 4 5 6 ...

Page 37: ...ease latch located underneath the notebook as shown in Figure 2 8 and remove the battery 2 Look for the hand hold and insert the battery with hand hold down until battery pack snaps in place Figure 2 8 Battery Pack Removal Installation Installation Secondary Battery Release Latch Optional Media Bay Secondary Battery Pack Li Ion NiMH or Li Ion Primary Battery Primary Battery Release Latch ...

Page 38: ...ith the notebook to the DC IN power receptacle on the left rear of the notebook as shown in Figure 2 9 2 Connect the female side of the AC power cord to the AC adapter and connect the male end to a grounded AC outlet Figure 2 9 Installing the AC Adapter 2 7 Initial Software Load After unpacking and setting up the notebook for the first time you must perform an initial software load that takes appr...

Page 39: ...h the printer driver provided by the printer manufacturer If you do not want to install a printer at this time you can skip this part of the setup Operating System Type During initial setup you must choose which operating system to load either Windows 95 or MS DOS and Windows for Workgroups DOS WFW This choice is final You will not be able to change the operating system after installation is compl...

Page 40: ... computer The software loaded on your computer How to get service and technical support More about Texas Instruments 2 9 1 Stopping the Demo Program To stop the demo press the left mouse button or double tap the Glidepad 2 9 2 Running the Demo Again To run the demo program do one of the following In Windows 95 1 Double click on the About Your Extensa icon on the desktop 2 Follow the directions to ...

Page 41: ... external devices and loaded the software system you re ready for system checkout and software configuration To check out the system press the power button on the left side of the notebook which initiates 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 Upon succe...

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Page 43: ...Notebook Computer User s Guide supplied with the notebook 3 2 Controls Indicators The operating controls and indicators for the 660 Series Notebooks are shown in Figure 3 1 and briefly described in the following paragraphs Figure 3 1 Operating Controls and Indicators Cover Release Button Status Indicators Keyboard Glidepad Select Buttons Glidepad mouse device Power ON OFF Button PC Card Release Le...

Page 44: ...k Indicator Num Lock Indicator Suspend Mode Indicator Standby Mode Indicator 3 2 3 LED Icons Table 3 1 contains a listing and description of Extensa LED Icons Table 3 1 LED Icon Descriptions Icon Description Disk Media Indicator Lights when the computer writes to or reads from the floppy disk drive or reads from the CD ROM drive HDD Indicator Lights when the computer writes to or reads from the ha...

Page 45: ...by Mode Indicator Lights when the computer is in the Standby mode The computer enters the Standby mode if the Standby hot key Fn F3 is pressed or the Standby Timeout parameter in Setup is enabled and expires Table 3 2 Summary of Notebook Hot Key Sequences Function Key Sequence CMOS Setup Fn F1 Enter 0V Suspend Mode Fn F2 5 Volt Suspend Fn F3 Enter Standby Mode Fn F4 Resume from Standby Mode Press ...

Page 46: ... the notebook to echo keystrokes to the printer prints a line when you press Enter continues until you press Ctrl P Ctrl P Enable disable the internal keypad Fn T Warm boot Ctrl Alt Del Start Windows logo key Display the application s context menu Application key Table 3 3 Hot Keys Available on Attached External keyboard Function Key Sequence System Setup Ctrl Alt F1 0V Suspend Ctrl Alt F2 5V Susp...

Page 47: ...p additional features and to get to the online help for the Synaptics Glidepad drivers In Windows for Workgroups 1 From the Program Manager double click on the Main program group 2 Double click on the Control Panel icon 3 Double click on the Synaptics Glidepad icon Table 3 5 DOS Special Keys Hot Key Function Ctrl Pause Stops a command or application primarily used to stop the screen from scrolling...

Page 48: ...disc tray is extended 3 4 2 Inserting a CD into the Drive 1 Press the eject button on the front of the CD ROM drive to eject the disc tray 2 Slide out the disc tray 3 Place the CD label side up in the depression on the disc tray 4 Slide the disc tray into the drive 3 4 3 Handling CDs Follow these guidelines to avoid damaging your CDs When removing a CD from its protective case or loading a CD into...

Page 49: ...connecting external sound equipment The computer has the following jacks for connecting to external sound equipment Microphone Input Stereo Headphone Speaker Line Output Stereo Line Input 3 6 Using Remote Connections The computer can send and receive e mail surf the Internet connect to one of the online services or share files with other office employees The Extensa communicates with the outside w...

Page 50: ... The optional MPEG PC Card uses the Zoomed Video port built into the computer to display MPEG video and audio on the computer The MPEG card features MPEG 1 video playback with 16 7 million colors MPEG 1 audio layers I and II is MPC3 compliant and Windows 95 Plug and Play With this option you can run full motion video combined with digital audio graphics text and data enabling you to create far mor...

Page 51: ...e notebook has been in either the Suspend or Standby modes 3 7 3 Responding to a Low Battery Condition When you are operating the computer on battery power and the charge remaining is down to between 10 and 20 the battery low indicator blinks and an audible alarm sounds When this happens you should take the following actions to conserve battery power and reduce the possibility of data loss Saving ...

Page 52: ...ff the computer If you cannot insert the spare battery into the modular bay suspend operations to disk by pressing Fn F2 and replace the battery When you turn on the computer the computer returns to the saved state 3 7 5 Saving to Disk When the battery power becomes critically low less than 5 charge remaining the computer saves the current state of the computer to disk and turns off When you turn ...

Page 53: ...ted on the I O Board Keyboard Subsystem implemented on the System Board Assembly and the Keyboard Assemblies Video Subsystem implemented on the I O Board LED Board and LCD Display Panel Sound Subsystem implemented on the System Board Assembly Glidepad Mouse Subsystem implemented on the Glidepad assembly and on the System Board Assembly Hard Disk Drive Subsystem implemented on the System Board Asse...

Page 54: ...GA CHIP C T 65548 CRT ON LCM INVERTER FLASH BIOS 256KB PCMCIA OMEGA 82C094 KB CONTROLLER MITSUBISHI M38813M4 SUPER I O NS PC87336VLJ GLIDE PAD EXT KB MOUSE INTERNAL KB CARD 1 CARD 0 FDD HDD PRINTER CLOCK GEN ICS AV9154 43 AC ADAPTER DC DC CONVERTER 14 318MHz 24MHz 66MHz 14 318MHz X TAL BATTERY IN 3 45V 5V 12V DC IN COM1 CD ROM 8X 10X AC Input 1MB VIDEO RAM ...

Page 55: ... and high speed synchronous pipelined burst SRAM for L2 cache memory Main BIOS and Video BIOS are stored in Flash ROM 4 2 2 1 Main Memory The standard 660 Series notebook comes with 16 MB of Main memory installed on the System Board Memory expansion accommodations are provided via a standard soDIMM connector on the bottom of the System Board Assembly By installing a 64 MB soDIMM module the basic m...

Page 56: ...Built in 206 Built in 146818A Built in Memory Controller Memory Controller Supports ROM DOS up to 64 MB by XIP 16 MB by EMS Supports Shadow RAM from C0000 FFFFF Supports SLOW and SELF Refresh DRAM Supports Stagger Refresh On board memory up to 48 MB Supports Three Memory Banks Supports Page Mode Burst mode operation Supports 512 KB x 8 1M x 4 1M x 16 2M x 8 and 4M x 4 type DRAM Supports 8 or 16 bi...

Page 57: ...mplemented on the VGA Video Board and on the System Board Assemblies The notebook contains a built in 10 4 inch or larger LCD and features simultaneous LCD and external VGA display The video subsystem includes a 1 5 MB DRAM memory 32 bit DRAM bus and separate display and memory clocks An additional frame buffer accelerator DRAM increases the available memory band width for CPU accesses The video s...

Page 58: ...also be selected which powers down the motor plus all control circuits The hard disk drives are factory formatted as a single drive Drive C and are preloaded with installation versions of Windows 95 or Windows for Workgroups in dual load versions the user selects the operating system during software installation 4 2 7 1 Hard Disk Drive Power Management Both the internal hard disk drive and the har...

Page 59: ... recharges the batteries when the notebook is used with an AC adapter 4 2 9 1 AC Power Adapter The computer is equipped with a universal AC power adapter that converts AC voltage into DC voltage approx 46 Watts of power used to operate the notebook and charge the batteries The specifications for the AC adapter include Input Voltage 100 to 250 VAC Input Current Approximately 1 5 Amps Input Frequenc...

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Page 61: ...t from the A Drive or C Drive Checking LCD brightness adjustment press Fn Up Arrow keys to increase brightness Ensuring that computer is not set for external monitor press Fn F12 to select internal screen Recording and attempting to resolve any displayed error messages or error beeps refer to Paragraph 5 3 3 1 and Tables 5 1 and 5 2 Rebooting the system Ctrl Alt Del If the computer is capable of r...

Page 62: ...S NO YES SEEPARAGRAPH 5 3 5 NO YES SEEPARAGRAPHS 5 3 3 1and5 3 3 2 NO SeeParagraphs 5 3 1 5 3 2 NO YES YES SEEPARAGRAPH 5 5 WhenPower button is pressed noindication ofpower is present dark LCD noStatus iconslit no disk drive activity etc Press Powerbutton Selftestautomatically runs when powerturnedon NO SEEPARAGRAPH 5 4 Yes PORT REPLICATOR PROBLEMS ATTACH DESKTOP DEVICES DIRECTLY TO NOTEBOOK TO IS...

Page 63: ...apter and double check all connections on the adapter and computer Ensure that the Notebook Power switch is set to the On position and that the system is not in Suspend or Sleep mode Measure the voltage at the AC outlet or plug in a known good appliance e g a lamp to verify that voltage is present If the voltage is ok try replacing the AC adapter Check to see that the battery packs are installed c...

Page 64: ...eshooting Guide Problem Description Inverter Board LCD Panel Display Cable Mother Board BIOS Single line on LCD display horizontal or vertical Low High Medium Low Low Multiple lines on display horizontal or vertical Low Medium Medium Low Low Sections of the display are missing characters Low Medium Medium Low Low Scrambled Display Low Medium Low Medium Medium Intermittent characters on display Low...

Page 65: ... use keystroke sequences such as Ctrl Alt Del To execute a keystroke sequence such as this you must press all three keys simultaneously 5 3 3 1 POST Error Messages Upon successful completion of Power On Self Test the computer automatically loads its operating system and other built in utilities If POST fails to complete successfully the display shows one of the error messages described in Table 5 ...

Page 66: ...mmand Check the keyboard controller and system board Turn the power off then back on again If the problem persists contact qualified service personnel Fixed disk configuration error The specified configuration is not supported or doesn t match the actual hardware installed Correct the fixed disk configuration Fixed disk controller failure The fixed disk may be defective Try rebooting If that doesn...

Page 67: ...ower off then back on again If the problem persists contact qualified service personnel Shutdown failure Either the keyboard controller is not accepting the reset command or the associated reset logic has failed Check the keyboard controller and system board Turn the power off then back on again If the problem persists contact qualified service personnel Time of day not set run SETUP program Real ...

Page 68: ... then back on again If the problem persists contact qualified service personnel Keyboard data line failure The keyboard controller firmware has failed Check the keyboard controller and system board Turn the power off then back on again If the problem persists contact qualified service personnel Keyboard stuck key failure A key is jammed Locate the jammed key and fix it Make sure the keyboard cable...

Page 69: ...lure 1 3 4 0Bh 1ST 64K RAM Odd Even Logic Failure 1 4 1 0Ch Address Line Failure 1ST 64K RAM 1 4 2 0Dh Parity Failure 1ST 64K RAM 2 1 1 10h Bit 0 1ST 64K RAM Failure 2 1 2 11h Bit 1 1ST 64K RAM Failure 2 1 3 12h Bit 2 1ST 64K RAM Failure 2 1 4 13h Bit 3 1ST 64K RAM Failure 2 2 1 14h Bit 4 1ST 64K RAM Failure 2 2 2 15h Bit 5 1ST 64K RAM Failure 2 2 3 16h Bit 6 1ST 64K RAM Failure 2 2 4 17h Bit 7 1S...

Page 70: ...gress 1 2 2Eh Cirrus Video Chip Failure 1 3 2Eh Cirrus RAM DAC or Video RAM Failure None 30h Screen Believed Operable running with Video ROM None 31h Monochrome Monitor Believed Operable None 32h Color Monitor 40 Column Believed Operable None 33h Color Monitor 80 Column Believed Operable 4 2 1 34h No Time Tick 4 2 2 35h Shutdown Failure 4 2 3 36h Gate A20 Failure 4 2 4 37h Unexpected Interrupt in ...

Page 71: ... eboot other keys to continue Memory on a peripheral card has failed Check the memory cards installed in the system Memory parity interrupt at address Type S hut off NMI R eboot other keys to continue A memory chip s has failed Check the memory on the system board Unexpected HW interrupt interrupt at address Type R eboot other keys to continue Hardware problem Not displayed if the expected interru...

Page 72: ...ubleshooting Procedures Problem Corrective Actions No power 1 Check that the AC adapter is plugged into the power connector of the system Also check that the AC adapter is plugged into a properly grounded AC power outlet 2 If using the battery as main power source check if the battery pack is of the right type charged and is inserted correctly 3 Check the powerboard of the system Is it inserted in...

Page 73: ... for 1 5 hours before using again 3 Replace the battery pack System halts during boot sequence 1 Check condition of selected bootload device disk or hard disk for bad boot track or incorrect OS files 2 Try booting from a new bootable disk and recopy or repartition hard disk 3 Check for any BIOS error messages on the display screen 4 Replace motherboard I O processing malfunctions 1 Check the conne...

Page 74: ...properly and all connections are set 3 Replace the PC M C IA card 4 Replace the m otherboard M ouse doesn t w ork 1 C heck if PS 2 m ouse driver is properly installed 2 C heck the keyboard controller chip for any cold or loosed soldering 3 Replace the m otherboard Serial device does not w ork 1 If using serial m ouse check if trackball option is disabled under C M O S Setup 2 C heck if m ouse driv...

Page 75: ...lities within PC Doctor that can be run locally or remotely simplify the task of determining system configuration data allocating and using system memory IRQ and DMA use what device drivers are installed what COM and LPT ports are assigned and what ports are available identifying partitioning data for fixed disk drive s determining the VGA setup information reading the software interrupts interrup...

Page 76: ...en accessed by pressing F1 key once pressing F1 twice gets you into the online manual 5 5 3 User Interface to PC Doctor PC Doctor is structured as a text mode windowed user interface with pull down menus Program operation requires the use of the following keys Cursor Keys Moves the highlighted pointer Enter Key Selects the highlighted option Esc Key Cancels current function and goes back one step ...

Page 77: ... CRT Interface Troubleshooting Diagram 5 5 FDD Interface Troubleshooting Diagram 5 6 HDD Interface Troubleshooting Diagram 5 7 Keyboard Interface Troubleshooting Diagram 5 8 CD ROM Interface Troubleshooting Diagram 5 9 Glidepad Interface Troubleshooting Diagram 5 10 DC DC Converter Interface Troubleshooting Diagram 5 11 Battery Charger Interface Troubleshooting Diagram 5 12 LED Indicator Function ...

Page 78: ...Checks 1 Vcc5 5V Vcc3 3 3V Check CON10 Pin13 PWRON 5V Check DC DC Converter Check PWRGOOD Check U7 P1C16C62 Pin23 PWRGOOD Yes No Yes No Check CPUCLK 66MHz Check U39 74CT2524 Pin2 Check PCICLK 33MHz Check U40 74CT2524 Pin6 END Yes Yes No No System Fails to Boot Initial Tests ...

Page 79: ...eck MEMVCC 3 3V Check CN10 Pin 10 Check RAS0 CAS 0 7 Signals Check RP45 RP86 RP87 Check MAC 0 11 Check RP39 RP47 RP51 Check MD 0 63 Check U12 U15 U22 U27 U28 U31 U32 U33 Pin 2 3 4 5 7 8 9 10 41 42 43 44 46 47 48 49 END Yes No Yes Yes Yes No No No Memory Interface Tests System Fails to Boot ...

Page 80: ...ubleshooting Diagram Check CN4 and CRT Cable Check L15 L21 L22 L23 L24 Red Green Blue Hsync Vsync Check VGA Clock 14 318MHz and 32 768KHz Check U20 2093 Pin 71 33MHz Pin 93 14 318MHz Pin 82 32 768KHz END Yes No Yes No 3 System Fails to Boot CRT Interface Checks ...

Page 81: ...skette FDD Power Checked Check U605 9956 Pin1 5V CN29 Pin53 motor ON0 5V FDD Motor Checked Check CN17 Pin51 Motor 0N04 signal END Yes No Yes Yes No No No Seek Operation Checked Check Read or Write Operation Check CN17 Pin44 TRK0 Pin50 step PIN 60 Index Signals Check CN17 PIN48 Write Data PIN46 Write Gate PIN40 F Read Data Yes Yes Yes No No O K System Fails to Boot FDD Interface Check ...

Page 82: ...em Hard Disk properly formatted Use DOS FDISK program and Format Check HDD Power Check U605 9956 Pin3 5V Check HDD Data Bus PIN 36 37 38 39 50 51 52 53 62 63 64 END Yes No Yes Yes No No No Check HDD Address Bus Check U13 Pin688 Pin69 Pin70 HSA0 HSA1 HSA2 Yes Yes No Hard Disk Check U13 65 71 72 73 74 System Fails to Boot HDD Interface Checks ...

Page 83: ...yboard FPC Cable O K Check FPC Cable Broken or not Checked Keyboard Interrupt Check U8 M38813 Pin15 IRQ1 Checked Keyboard Scanning Signals END Yes No Yes No Check CN18 PIN 1 PIN 15 X1 15 Check CN16 PIN 1 PIN 8 Y0 7 Check U8 Entire Circuit Yes No System fils to boot Keyboard Interface Checks ...

Page 84: ...Check U605 9956 Pin1 VCC CDROM 5V Checked CD ROM Data Bus Check U13 PIN 36 37 38 39 50 51 52 53 62 63 64 65 71 72 73 74 Checked CD ROM Address Bus Check U13 PIN68 PIN69 PIN70 HSA0 HSA1 HSA2 Checked IRQ Signal Check U13 Pin86 DIRQ15 END Yes No Yes Yes Yes No No No System Fails to Boot CD ROM Interface Checks ...

Page 85: ...ram System Fails to Boot Glide Pad Interface Checks 8 Check GLide Pad Data Signal Check CN21 Pin2 GLPDATA Signal Check Glide Pad Power Check CN21 Pin3 GLPCLK Signal Check Glide Pad Power Check CN21 Pin1 5V Check Glide Pad IRQ Check U8 38813 Pin14 IRQ12 END Yes No Yes Yes Yes No No No ...

Page 86: ...POWER SWITCH 9 DC IN 20V BAT 12V Check T3 F1 D12 D11 F2 Q5 D14 SW2 5V Check M B Check SW1 Check CN33 PIN4 for low pulse Check SW2 U1 PIN 7 Check D29 D2 D3 U2 Q1 Q2 Q3 Q4 C14 R13 R14 D4 D5 R8 R9 R10 R11 R1 0V 5V END NO YES NO NO NO YES YES YES 5V 0V System Fails to Boot DC DC Converter Interface Checks ...

Page 87: ...roubleshooting Diagram System Fails to Boot Battery Charger Interface Checks DC_IN 19V Check F1 T3 U4 5V Check D18 Charge Battery 1 or Charge Battery 2 Check Charger Control Board RBC3 U1 D8 D7 Check Battery Pack Voltage Temp END Yes No Yes Yes No No Plug In AC Adapter 10 ...

Page 88: ... CN7 Pin 3 END Yes No Yes Yes No No Check CD ROM FDD LED Check Power Management LED Check CN11 Pin2 CD FDD HDD LED OV while any device access Check Con11 Pin5 PMUEN 0V while power management BIOS enable Yes Yes No No Clock Suspend LED Blanking Check Charge LED Check CN11 Pin6 SUS LED 5V 0V 0V 5V Check CN11 Pin8 CHarge 5V while battery is charging Yes No Yes 11 LED Indicator Function Troubleshootin...

Page 89: ...eshooting Diagram 12 Check BIOS Setup Enter Correct type for COM1 Check Transmitting Signal Check U1 MAX213 SOUT1 Check Receiving Signal Check U1 MAX213 SIN1 Check MD 0 63 Check U21 87338 Pin1 Pin100 IRQ3 IRQ4 END Yes No Yes Yes Yes No No No System Boots Serial Port Checks ...

Page 90: ...13 Check BIOS Power Management Setup Enter Correct type Suspend to RAM Suspend to Disk Check Suspend Signal Check U9 Pin 3 SUSPEND 0V Check Resume Operation Check U9 Pin 3 Suspend 5V END Yes No Yes Yes Yes No Check Suspend Signal Check U9 Pin 3 Susepend Check Resume Operation Check U9 Pin 3 Suspend 5V Yes Yes No No No ...

Page 91: ...up Enter Correct Value Check Switch Press Cover Switch Check COVSW 0V END Yes No Yes No System Boots Cover Switch Function Checks 14 15 Cover Close Check Check COVSW Check D18 R112 C58 Check COVSW Normally High Low pulse when Cover Closes Check D18 R112 C58 END YES NO NO YES YES Low when cover closed High when cover open System Boots Cover Close Function Checks ...

Page 92: ...8813 Pin17 EXT1DATA Signal Check Keyboard Clock Check U8 38813 Pin16 EXT1CLK Check IRQ Signal Check U8 38813 PIN15 IRQ1 END Yes No Yes Yes No System Boots External Keyboard Checks 17 Check Mouse Data Check U8 38813 Pin12 EXT2DATA Check Mouse Clock Check U8 38813 Pin13 EXT2CLK Check IRQ Signal Check U8 38813 PIN14 IRQ12 END Yes No Yes Yes No No System Boots PS 2 External Mouse Interface Check ...

Page 93: ...rt Interface Troubleshooting Diagram 18 Check BIOS Setup Enter Correct Type of Printer Check the Data Bus Check RP5 RP7 Check Busy Signal END Yes No Yes No Check RP2 Pin6 BUSY Check U21 87338 Entire Circuit Yes No System Boots Printer Port Interface Checks ...

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Page 95: ...ly dampened with a mild detergent solution or use the contents of any commercially available computer cleaning kit Caution Never spray any liquids directly on the computer case keyboard or screen If the liquid crystal display LCD screen has become smeared or dusty clean the screen first with a soft clean lint free cloth and gently wipe the glass If the glass is still smeared use distilled water or...

Page 96: ...lean if necessary To ensure that the battery packs endure normal life cycle always observe the following precautions when handling the battery packs Do not drop the battery pack or subject it to excessive shock and vibration Do not expose the battery pack to direct sunlight moisture or chemical compounds Do not disassemble the battery pack Do not use the battery pack to power other devices Do not ...

Page 97: ...ty When handling any of these items protect against static electricity by using wrist grounding straps and grounded working mats When moving or storing items use the anti static bags supplied with the items 6 4 Notebook FRUs Table 6 1 lists and describes the various FRUs for the Extensa 660 Series As shown in Figure 6 1 all members of the Extensa 660 Series Notebook Computers contain two major ass...

Page 98: ... LCD screen DC AC Inverter Board DC DC Inverter Board bezel LCD cover and various other components as listed in Table 6 1 Figure 6 2 Cover Display Assembly FRUs Flex Cable Main to Transfer LCD Flex Cable Display Cover Display Bezel LCD Panel Inverter PWB Transfer PWB Assembly Flex Cable Transfer to Inverter ...

Page 99: ...TFT LG 6 5 17 9813169 0001 LCD Panel 12 1 DSTN SANYO 6 5 17 9813170 0001 Display Back Cover 11 3 HO 6 5 17 9813165 0001 Display Back Cover 11 3 LG 6 5 17 9813207 0001 Display Back Cover 12 1 SANYO 6 5 17 9813167 0001 11 3 Display Bezel 6 5 17 9813164 0001 12 1 Display Bezel 6 5 17 9813166 0001 11 3 LCD Flex Cable HO 6 5 17 9813150 0001 11 3 LCD Flex Cable TFT LG 6 5 17 9813199 0001 12 1 LCD Flex C...

Page 100: ...re 6 3 System Base Assembly FRUs Audio PWB Button PWB Power Supply PWB CMOS Battery CPU PWB Glidepad Main PWB Top Cover Assembly Heat Sink Assembly Keyboard Assembly Bottom Case Assembly Battery HDD Transfer PWB PCMCIA Door ...

Page 101: ... PCMCIA Connector Kit Ref 9813176 0001 Peripherals Sound Accessories Misc FDD Module 1 44 MB w Housing 6 5 2 9813200 0001 HDD Module w Housing 1 4 GB IBM 6 5 5 9813201 0001 HDD Module w Housing 2 1 GB IBM 6 5 5 9813204 0001 HDD Module w Housing 1 35 GB Seagate 6 5 5 9813211 0001 10X CD ROM Module w Housing Sanyo 6 5 2 9813133 0001 Microphone Assembly w Cable Ref 9813174 0001 Speaker Kit Left 6 5 1...

Page 102: ... Assemblies AC Adapter Kit ADP 45CBF U S Power Cord Section 2 9813497 0003 AC Adapter Kit ADP 45CBF WW Power Cord Section 2 9813562 0002 Battery Primary Ni MH 6 5 1 9813147 0001 FDD Module External w Housing 6 5 2 9813200 0001 HDD Module 1 35 GB Seagate w Housing 6 5 2 9813211 0001 HDD Module 1 4 GB IBM w Housing 6 5 2 9813201 0001 HDD Module 2 1 GB IBM w Housing 6 5 2 9813204 0001 CD ROM Module 1...

Page 103: ...se type of connectors as shown in Figure 6 4 Non locking connectors Options Battery Primary Li Ion 6 5 1 9813130 0001 Battery Secondary Li Ion 6 5 2 9813131 0001 External Battery Charger U S Ref 9813134 0001 External Battery Charger WW Ref 9813134 0004 Auto Adapter Ref 9813126 0001 Port Replicator Extensa 65X 66X Ref 9813564 0001 FDD w Cable External 6 5 2 9813561 0001 HDD Kit 2 1 GB 6 5 5 9813125...

Page 104: ...The procedure for removing and replacing the primary battery pack is as follows 1 Turn off the computer and disconnect the AC adapter from the computer 2 Press the battery release latch outwards underneath the notebook as shown in Figure 6 5 3 While holding the battery release latch outward slide the battery outward as shown in Figure 6 5 4 Insert the replacement battery with label side facing upw...

Page 105: ...tal removal of devices from the modular bay Follow these steps to change modules 1 Turn off the computer 2 Press the release latch on the bottom of the computer as shown in Figure 6 6 3 Pull out the accessory currently in the modular bay Secondary Battery Release Latch Optional Media Bay Secondary Battery Pack Li Ion NiMH or Li Ion Primary Battery Primary Battery Release Latch ...

Page 106: ...placing a Media Bay Device 4 Unpack the new accessory 5 Slide the new accessory into the modular bay and push the accessory until it latches into place 6 Place the original accessory in a safe place 7 Turn on the computer Module Lock Grip Area ...

Page 107: ...r Type III devices refer to Figure 6 7 3 To replace the PCMCIA device remove any filler cards present and insert the device Reinstall any external cabling required for the device Figure 6 7 Installing Removing PCMCIA Options 6 5 4 Removing Replacing the APCI Card Option The procedure for removing and replacing the Hard Disk Drive assembly is as follows 1 Power down the notebook disconnect the AC a...

Page 108: ...nstalled PCMCIA options 3 Turn the computer over and locate the APCI Access Cover as shown in Figure 6 8 Figure 6 8 Removing Replacing the APCI Option Bottom of Notebook Advanced PCI Compartment Compartment with cover removed Advanced PCI Connector ...

Page 109: ...2 2 Disconnect any peripheral device interface cables from the external interface connectors 3 Turn the computer over and remove the hard disk drive bay cover refer to Figure 6 9 4 Slide the two release tabs inward Figure 6 9 slide the drive out of the notebook Figure 6 9 Removing Replacing the Hard Disk Drive Module Caution Exercise care to only handle the drive by its sides to prevent damage to ...

Page 110: ...ont of the unit on the leftmost tab Repeat for remaining two tabs to free the keyboard 4 Lift the keyboard up and out of the notebook and rest the keyboard face down on the palm rest area 5 Disconnect two ZIF type keyboard cable connectors CN16 and CN18 from the main board 6 Remove Keyboard Assembly from the base assembly 7 Replacement is the reverse of steps 1 through 6 To secure the keyboard in ...

Page 111: ...in Paragraphs 6 5 1 and 6 5 2 2 Press the Cover Release Latch and open the notebook to a full 180 degree position 3 Remove the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the four screws securing the Heat Sink Assembly to the Main Board and carefully lift the Heat Sink Assembly from the base assembly 5 Replacement is the reverse of Steps 1 through 4 Figure 6 11 Removing Replacing th...

Page 112: ...the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the Heat Sink Assembly as described in Paragraph 6 5 7 Caution Avoid touching the CPU as the CPU pins bend easily 5 Carefully remove the CPU PWB exercising caution not to damage the CPU pins 6 Replace using the reverse of Steps 1 through 5 Note When installing a replacement CPU PWB assembly add thermal grease to the bottom of the Heat ...

Page 113: ...n the notebook to a full 180 degree position 3 Remove four screws from the face of the LCD cover and pull the covers apart starting at the top of the Display refer to Figure 6 13 4 Remove the single screw holding the FPC Cable and gently remove the cable connector CN1 from the LCD Transfer Board 5 Remove five screws 3 on left hinge and 2 on the right hinge and remove the Cover Display Assembly fro...

Page 114: ...nd remove five recessed screws from the bottom of the base assembly Also remove two screws from the primary battery compartment and two screws from the Hard Disk Drive compartment 7 Turn the assembly to normal position and unsnap the base cover from the top cover by pulling gently up along both sides and along the front until the top cover unsnaps from the base cover assembly 8 Unplug the cable co...

Page 115: ... open the notebook to a full 180 degree position 3 Remove the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the Heat Sink Assembly as described in Paragraph 6 5 7 5 Remove the Cover Display Assembly as described in Paragraph 6 5 9 6 Remove the Top Cover Assembly as described in Paragraph 6 5 10 7 Remove two screws and remove the LED PWB from the Top Cover Assembly 8 Reassembly is the ...

Page 116: ... the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the Heat Sink Assembly as described in Paragraph 6 5 7 5 Remove the Cover Display Assembly as described in Paragraph 6 5 9 6 Remove the Top Cover Assembly as described in Paragraph 6 5 10 7 Turn the top cover over and locate the Glidepad PWB disconnect cable connectors CN21 and CN22 from the Main PWB assembly 8 Remove the six screws s...

Page 117: ... and open the notebook to a full 180 degree position 3 Remove the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the Heat Sink Assembly as described in Paragraph 6 5 7 5 Remove the Cover Display Assembly as described in Paragraph 6 5 9 6 Remove the Top Cover Assembly as described in Paragraph 6 5 10 7 Remove the screw securing the power Supply PWB to the Main PWB and remove the Power S...

Page 118: ...notebook to a full 180 degree position 3 Remove the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the Heat Sink Assembly as described in Paragraph 6 5 7 5 Remove the Cover Display Assembly as described in Paragraph 6 5 9 6 Remove the Top Cover Assembly as described in Paragraph 6 5 10 7 Remove two screws securing the Audio PWB to the Main PWB and disconnect three connectors CN15 CN27 ...

Page 119: ...scribed in Paragraph 6 5 7 5 Remove the Cover Display Assembly as described in Paragraph 6 5 9 6 Remove the Top Cover Assembly as described in Paragraph 6 5 10 7 Remove all PWB assemblies from the Main PWB Assembly and install on the replacement Main PWB Assembly 8 Remove the three large posts one visible one under the Power Supply PWB and one under the Battery and HDD Transfer PWB Note and record...

Page 120: ...se Latch and open the notebook to a full 180 degree position 3 Remove the Keyboard Assembly as described in Paragraph 6 5 6 4 Remove the Heat Sink Assembly as described in Paragraph 6 5 7 5 Remove the Cover Display Assembly as described in Paragraph 6 5 9 6 Remove the Top Cover Assembly as described in Paragraph 6 5 10 7 Remove the three holding screws and remove the Battery HDD Transfer PWB Assem...

Page 121: ...d 6 5 2 2 Press the Cover Release Latch and open the notebook to a full 180 degree position 3 Remove the Cover Display Assembly as described in Paragraph 6 5 9 4 Refer to Figure 6 21 and remove the desired display FRU 5 Replacement is the reverse of Steps 1 through 4 Figure 6 21 Removing Replacing Internal Display FRUs Flex Cable Main to Transfer LCD Flex Cable Display Cover Display Bezel LCD Pane...

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Page 123: ...Schematic Diagrams A 1 A Schematic Diagrams A 1 Introduction This section contains schematic diagrams for the Extensa 660 Notebook Computer ...

Page 124: ...A 2 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 1 of 23 ...

Page 125: ...Schematic Diagrams A 3 Figure A 2 Motherboard PWB Logic Diagrams Sheet 2 of 23 ...

Page 126: ...A 4 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 3 of 23 ...

Page 127: ...Schematic Diagrams A 5 Figure A 1 Motherboard PWB Logic Diagrams Sheet 4 of 23 ...

Page 128: ...A 6 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 5 of 23 ...

Page 129: ...Schematic Diagrams A 7 Figure A 1 Motherboard PWB Logic Diagrams Sheet 6 of 23 ...

Page 130: ...A 8 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 7 of 23 ...

Page 131: ...Schematic Diagrams A 9 Figure A 1 Motherboard PWB Logic Diagrams Sheet 8 of 23 ...

Page 132: ...A 10 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 9 of 23 ...

Page 133: ...Schematic Diagrams A 11 Figure A 1 Motherboard PWB Logic Diagrams Sheet 10 of 23 ...

Page 134: ...A 12 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 11 of 23 ...

Page 135: ...Schematic Diagrams A 13 Figure A 1 Motherboard PWB Logic Diagrams Sheet 12 of 23 ...

Page 136: ...A 14 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 13 of 23 ...

Page 137: ...Schematic Diagrams A 15 Figure A 1 Motherboard PWB Logic Diagrams Sheet 14 of 23 ...

Page 138: ...A 16 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 15 of 23 ...

Page 139: ...Schematic Diagrams A 17 Figure A 1 Motherboard PWB Logic Diagrams Sheet 16 of 23 ...

Page 140: ...A 18 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 17 of 23 ...

Page 141: ...Schematic Diagrams A 19 Figure A 1 Motherboard PWB Logic Diagrams Sheet 18 of 23 ...

Page 142: ...A 20 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 19 of 23 ...

Page 143: ...Schematic Diagrams A 21 Figure A 1 Motherboard PWB Logic Diagrams Sheet 20 of 23 ...

Page 144: ...A 22 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 21 of 23 ...

Page 145: ...Schematic Diagrams A 23 Figure A 1 Motherboard PWB Logic Diagrams Sheet 22 of 23 ...

Page 146: ...A 24 Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 23 of 23 ...

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