Maintenance Manual ExtensaTM 900 Series Notebook Computers 9813715-0001 December 1996
Copyright © 1996 Texas Instruments All Rights Reserved ExtensaTM 900 Series Notebook Computers Maintenance Manual TI Part No. 9813715-0001 Original Issue: December 1996 Changes may be made periodically to the information in this publication. Such changes will be incorporated in new editions of this manual.
Preface Introduction This manual provides installation, operation and servicing data for the ExtensaTM 900 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 Notebook Computer Series: ♦ Extensa Series Notebook Computers Users Guide - Contains user reference information for the Extensa 900 Series Notebook Computers.
Contents Paragraph Page Preface Introduction - - - - - - - - - - - - - - Intended Audience- - - - - - - - - - Contents - - - - - - - - - - - - - - - - Other Manuals About the SystemOrdering Parts and Supplies - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - vii - vii - vii -viii -viii Section 1 General Description Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1 Product Overview - - - - -
Contents (continued) Paragraph Section 2 Installation (continued) Installing External Notebook Options - - - - - - - - - - - - Installing the Mobile Productivity Base (Option) - Docking the Notebook to the MPB - - - - - - Cabling to the MPB - - - - - - - - - - - - - - - - Installing Ext.
Contents (continued) Paragraph Section 4 Theory of Operation Page Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1 Notebook Functional Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1 System Processor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3 Memory Subsystem- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5 Main Memory- - - - - - - - - - - -
Contents (continued) Paragraph Section 6 Troubleshootig Procedures (continued) General Fault Isolation Procedures - - - - - - - - - - Fault Isolation Using Diagnostics - - - - - - - - - - - PC-Doctor (In DOS Mode or DOS Windows) Supporting Online Documentation - - - - - - User Interface to PC-Doctor - - - - - - - - - - Quitting PC-Doctor - - - - - - - - - - - - - - - - - - - - - - - - Page - - - - - - - - - - - - - 5-12 5-13 5-13 5-15 5-15 5-15 Section 6 Field Service Introduction -
Contents (continued) Paragraph Section 6 Field Service (continued) Removing/Replacing Removing/Replacing Removing/Replacing Removing/Replacing Removing/Replacing Removing/Replacing the the the the the the MPB Battery - - - - - - - - - MPB Housing- - - - - - - - - Docking Cable - - - - - - - - Docking Mechanism - - - - MPB DC-DC Converter - - MPB Main Board Assembly Page - - - - - - - - - - - - - - -6-33 -6-34 -6-35 -6-36 -6-37 -6-38 Appendix A Notebook Schematic Diagrams Introduction - -
1 General Description 1.1 Introduction This manual contains field and factory level servicing information for the ExtensaTM 900 Series Notebook Computers (Figure 1-1) marketed by Texas Instruments. This section provides a general overview of the Extensa 900 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 900 Series Notebook Computers.
♦ Powerful PCI Bus architecture ♦ 16 MB main memory (expandable to 80 MB using 8 MB, 8 MB, 16 MB, 32 MB or 64 MB EDO 64-bit type small outline dual inline memory module (soDIMM) upgrades) ♦ 256 KB Level-2 cache memory ♦ Built-in 2.5-inch IDE high capacity (1.35 GB or greater) Hard Disk Drive ♦ External Floppy Drive Module (attaches to the Parallel Port) ♦ Advanced video features - DSTN or TFT internal color display - Simultaneous display with external CRT - 2.
LCD Power Switch Status Indicators Right Speaker Right Battery Lock FIR Port Audio and Mic Jacks Left Speaker Touchpad Battery Pack Bottom of Unit HDD Access Cover Left Battery Lock VGA Port Serial Port PC Card Slots Parallel Port PS/2 Port Expansion Memory Acess Cover AC Adapter Connection Figure 1-2 900 Series Notebook External Features 1.2.
1.2.1.1 Internal LCD The Extensa 900 Series Notebooks contain one of the following LCDs (model dependent): ♦ 12.1-inch DSTN display (900CD Only) ♦ 11.3-inch TFT 1.2.1.2 External CRTs The Extensa 900 Series Notebooks are equipped with a 15-pin SVGA connector that can drive an external CRT (either alone or simultaneously with the internal LCD). When the notebook is set to the SimulSCAN mode, a minimum resolution of 800 x 600 x 256 colors is supported.
1.2.2 Keyboard Features The Extensa 900 Series Notebooks contain a built-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 Embedded Numeric Keypad 1.2.
1.2.4 Standard Peripheral Devices As standard features, the Extensa notebooks include an internal IDE hard drive, an external 3.5-inch floppy disk drive and built-in touchpad (mouse device). 1.2.5 900 Series Connectivity Features As standard features, the Extensa 900 Series notebooks includes most standard desktop ports including a serial port, parallel port, PS/2 port, and external VGA port.
Table 1-2 900 Series External Ports Port Assignment Description External VGA Port 15-pin Female connector used to attach an external SVGA monitor to the notebook. Serial Port 9-pin Male connector used to attach an RS-232 serial device to the notebook. Parallel Port 25-pin Female connector used to attach a bidirectional printer or an external floppy disk drive (requires special cable for use with floppy disk drive).
1.2.7 Memory Expansion The notebook comes standard with 16 MB of RAM expandable to a maximum of 80 MB using soDIMM modules (available in 8, 16, 32 or 64 MB sizes). Access to the expansion socket is accommodated via a removable panel on the bottom of the notebook as shown in Figure 1-5. Expansion Memory Access Cover Figure 1-5 Memory Expansion Features 1.2.8 PCMCIA Card Options The Notebook contains an onboard PCMCIA Controller and two 64-pin sockets that can accept up to two credit-card size (14.
Figure 1-6 Installing PCMCIA Card Options 1.2.9 Mobile Productivity Base Option The Mobile Productivity Base (Figure 1-7) provides a port replicator function with separate External Keyboard and Mouse ports, plus powerful desktop expansion features including a Modular Bay for CD-ROM or Floppy Disk Drive and provisions for an Advanced PCI Card option. These features are summarized in Table 1-4.
Notebook Connector Secondary Battery Audio Jacks Advanced PCI Option Slot Media Bay (Floppy or CD-ROM Drive) Two PS/2 Ports for both External Keyboard and Mouse Standard Notebook Ports Figure 1-7 Mobile Productivity Base (MPB) Features 1.2.9.1 Docking and Undocking Docking and undocking of the Mobile Productivity Base is controlled by a latch and lever on the left side of the base as shown in Figure 1-8. The latch releases the lever; the lever is extended 90 degrees outward to release the notebook.
Docking/ Undocking Lever Lever Release Latch Left Side Right Side Figure 1-8 Undocking from the Mobile Productivity Base 1.2.9.2 Mobile Productivity Base Ports The Mobile Productivity Base provides the same ports as available on the Notebook plus an additional PS/2 port to allow for both external mouse and keyboard. The port assignments are shown in Figure 1-9.
Mic In Line In Line Out PS/2 Keyboard Port PS/2 Mouse Port Serial Port VGA Port Advanced PCI Parallel Port Figure 1-9 Mobile Productivity Base Ports 1.2.9.3 Advanced PCI Card Options The Extensa 900 Series Notebooks contain provisions for an advanced PCI Card as shown in Figure 1-7. 1.3 Notebook Battery The notebook computer uses a Lithium-Ion battery pack. A second identical battery can be installed in the optional Mobile Connectivity Base as shown in Figure 1-7. 1.
the computer is powered up. In the event of a failure, the computer 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. 1.4.
1.5 Extensa 900 Series Specifications General specifications for the Extensa 900 Series Notebooks are provided in Table 1-5. Table 1-5 Extensa 900 Specifications Characteristic CPU Model 900 Series Specifications Pentium P54CSLM, 133 MHz; 3.1 Volt, Internal Hard Disk Drive Disk Storage Capacity: 1.
Table 1-5 Extensa 900 Specifications Characteristic Model 900 Series Specifications Video Subsystem LCD Aspect Ratio 1-1 Emulations: SVGA Video Memory Size 1.
Table 1-5 Extensa 900 Specifications Characteristic RS-232-D Serial Port: Model 900 Series Specifications 9-Pin, male, sub-D-type connector Method: EIA RS-232-D Type: Asynchronous transmission Bits per second: 110, 200, 300, 600, 1200, 2400, 4800, 9600, 19200 Parity: Transmit: Odd, even, mark, space Receive: Data check: odd, even Line control: READY/BUSY, DC1/DC3 Data word: 7- or 8-bit 16550 UART Support Yes Selectable Serial Port (BIOS Setup) COM1(IRQ4, 3F8h) COM2(IRQ3, 2F8h) COM3(IRQ4
1.
2 Installation 2.1 Introduction This section contains unpacking and preparation for use instructions for the Extensa 900 Series Notebook Computers.
2.3 Installing Internal Notebook Options If you have no internal options to install at this time, skip to Paragraph 2.4. Otherwise, continue with Paragraph 2.3.1. 2.3.1 Installing Main Memory Expansion (Optional) Main memory on the 900 Series Notebooks can be expanded using an EDO Small Outline Dual Inline Memory Module (EDO soDIMM).
Expansion Memory Access Cover Inserting soDIMM Memory Module Figure 2-1 Memory Expansion Removal/Replacement Note: After installing expansion memory in your notebook, you must run the PHDISK utility in order for the Save-To-Disk 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.
In Windows 95 Follow these steps if your computer is running Windows 95. 1. From the Taskbar, select Start then Shut Down. 2. Select the Restart the Computer in MS-DOS mode. 3. Click on Yes. 4. Type PHDISK /C /F at the DOS prompt and press Enter. 5. The DOS screen appears and shows the save file name and size. Press any key to reset the system. The computer will reboot. In Windows for Workgroups Follow these steps if your computer is running MS-DOS® and Windows for Workgroups. 1.
Figure 2-2 Installing PCMCIA Option Cards Note: When installing a Zoomed Video option card, the card must be installed in the lower card slot (slot 0 or A). Other option cards can be installed in either card slot. 2.4 Installing External Notebook Options 2.4.1 Installing the Mobile Productivity Base (Option) If using the Mobile Productivity Base option, install this accessory now. If not using the MPB at this time, proceed directly to Paragraph 2.4.2. 2.4.1.
3. Swing the Docking Lever outward a full 90 degrees from the side of the MPB. 4. Slide the notebook into the MPB, right side first, as shown in Figure 2-3. Ensure that the docking guides on both the notebook and the MPB are securely hooked. 5. Rest the notebook on the MPB. Then press and hold the notebook against the MPB and swing the Docking Latch inward until the Lever Release Latch locks.
Mic In Line In Line Out PS/2 Keyboard Port PS/2 Mouse Port Serial Port VGA Port Advanced PCI Parallel Port Figure 2-4 MPB Port Assignments Installation 2-7
Battery Pack Figure 2-5 MPB Battery Pack Removal/Installation Installation 2.4.2 Installing Ext. Keyboard/Mouse/Numeric Keypad 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 2-6. Note: Refer to Figure 2-4 for port assignments if using the MPB option.
Figure 2-6 PS/2 Port Connections 2.4.3 Installing an External Parallel Printer The Notebook is equipped with an external, bidirectional, ECC/EPP compatible, 25-pin parallel printer port. The connector pinouts and connector location are shown in Figure 2-7. Note: Refer to Figure 2-4 for port assignments if using the MPB option.
PARALLEL PORT PINOUTS SIGNAL 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 26 Strobe* Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 Acknowledge* Busy Paper Out Select Auto Line Feed* Error* Initialize Printer* Select In* LPT 18 VCC PLP120 PLP121 PLP122 FDD 5V FDD 5V LP125 Ground SPP Mode STB* PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK* BUSY PE SLCT AFD* ERR* INIT* SLIN* LPT18 VCC PLP120 PLP121 PLP122 FDD 5V FDD 5V LP125 Ground Note: * Denotes Active
♦ Any device that uses an RS-232 interface Note: Refer to Figure 2-4 for port assignments if using the MPB option. 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 manual for the external device. Figure 2-8 Serial Port Pinouts 2.4.
Figure 2-9 External VGA Pinouts Use the following procedure to install an external monitor: 1. Turn off power to both the notebook and monitor. 2. Connect the 15-pin external VGA cable from the monitor to the VGA connector on the notebook computer (Figure 2-9) or MPB (Figure 2-4). 3. Power up the notebook computer first; then, turn on power to the monitor. 4.
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). 2.5 Primary Battery Pack Installation 1. Turn off the computer and disconnect the AC adapter if attached to the computer. 2. Unlatch the end locks by pushing the endcaps outward with your thumbs. 3.
1. Remove the AC adapter from the packaging. Connect the round coaxial connector supplied with 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. DC-IN Connector AC Adapter Figure 2-11 Installing the AC Adapter 2.
Before starting the initial software load process, ensure that you have the following: ♦ Extensa 900 User’s Guide - Contains latest software installation instructions. ♦ AC Adapter/Access to AC power - Although the battery pack may have some charge, it may be insufficient for the entire set up. Loss of power during setup can cause irreversible file damage. ♦ Certificate of Authenticity - You will need to enter the number from your Windows 95 Certificate of Authenticity during Windows 95 Setup.
3 Operating Instructions 3.1 Introduction This section contains a summary of notebook operating procedures useful for maintenance operations. For additional detail, refer to the Extensa 900 Series Notebook Computer User’s Guide supplied with the notebook. 3.2 Controls/Indicators The operating controls and indicators for the 900 Series Notebooks are shown in Figure 3-1 and briefly described in the following paragraphs.
3.2.1 Power On/Off Switch The notebook contains an alternate action power switch located center of the notebook near the status indicators as shown in Figure 3-1. The first time you press the power switch, power is turned on to the notebook. The next time you press the power switch, power is turned off. 3.2.
Table 3-1 LED Icon Descriptions Icon Description Standby Mode Indicator Lights when the computer is in Standby mode. Flashes when the computer is in the 5V Suspend mode. The computer enters Standby Mode if the Standby hot key (Fn+F4) is pressed or the Standby Timeout parameter in Setup is enabled and expires. The computer enters 5V Suspend Mode if the Suspend hot key (Fn+F3) is pressed or the 5V Suspend Timeout parameter in Setup is enabled and expires or the display is closed.
Table 3-2 Summary of Notebook Hot Key Sequences Function Key Sequence Alternate between display modes (LCD, Ext.
3.2.4.1 Windows 95 Special Keys Pressing the Windows Logo Key acts as the Start button. Pressing this key in combination with other keys performs special functions. Table 3-4 contains several examples of using the Windows 95 special keys.
3.3 Configuring the Touchpad You can personalize the control of the touchpad by configuring various settings using the Synaptics® Touchpad utility. Configure the touchpad using the Mouse utility located in the Control Panel Window. Follow these steps to configure the Touchpad: In Windows 95 1. Select the Start button, then select Settings. 2. Select Control Panel to display the Control Panel window. 3. Double-click on the Synaptics Touchpad icon. 4.
♦ To protect the CD against scratches and dirt when not in use, keep the CD in its protective case. ♦ Clean a CD with a clean, dry, lint-free cloth. Always wipe from the center to the edge. Don’t wipe the CD in a clockwise or counterclockwise direction. ♦ Keep CDs away from high temperatures and direct sunlight. 3.5 Built-In Sound System The Extensa 900 Series Notebook comes with an internal microphone and stereo speakers.
3.5.3 External Sound Equipment You can improve the quality of sound production and increase convenience by 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.
3.7 Using Zoomed Video Features Your computer supports Zoomed Video (ZV) PC Cards through the PC Card slots. ZV PC Cards connect to the internal ZV port, allowing advanced multimedia capabilities such as video conferencing and on-screen television at full, smooth motion. The Zoomed Video port adds a dedicated video bus that provides a direct link between a PC Card and the VGA accelerator or audio DAC.
3.8.2 Suspending Operation While Idle Although the computer goes into Suspend mode automatically after a defined period of inactivity, you can reduce energy consumption even further by pressing either Fn+F3 (Suspend) or Fn+F4 (Standby) as soon as you no longer need the computer to be active. ♦ Pressing Fn+F4 (Standby) turns off the screen. ♦ Pressing Fn+F3 (Suspend) turns off the screen, stops the hard disk drive, and reduces energy usage to the lowest level possible without turning off the computer.
3.8.4 Replacing the battery If you have a spare, charged battery, you can do one of the following. ♦ Insert a secondary battery into the MPB option (if installed). ♦ If you already have a battery in a docked MPB, you can replace the primary battery without turning off the computer. ♦ If you cannot insert the spare battery, 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. 3.8.
4 Theory of Operation 4.1 Introduction This section contains a general block diagram theory of operation description of the Extensa 900 Series Notebook Computers. Note: Various internal components may change on future models and busses/bus speeds are subject to change. 4.
6 CPU CPU Bus SRAM M1521 DRAM BGA PCI Bus IDE Master CD M1523 HDD ISA Bus Figure 4-1 Extensa Functional Block Diagram 4-2 Theory of Operation MPB Graphic controller
4.2.1 System Processor The System Processor function for the notebook is implemented on the Main Board in the form of an Intel Pentium P54-C Superscalar 586 Processor Chip. The processor operates in conjunction with RAM and ROM Memory and other control logic to process software instructions (BIOS, DOS, Windows, and applications). The processor communicates with the hard disk drive and the memory components using high speed busses.
Figure 4-2 Detailed System Block Diagram 4-4 Theory of Operation M1523 SD(15:0) INTERNAL KB PS2 M38813 SA2 PCMCIA SA(11:0) SD(15:0) ESS1878S SD(15:0) ISA BUS BIOS AD(31:0) TOUCH PAD CRT 16MB RAM DIMM*1 PARALLEL PORT SERIAL PORT SA(9:0) LCD 87338 65550/S3 AD(31:0) $MA(11:0) $MD(63:0) SA(9:0) SD(15:0) M6377 SD(15:0) UV(7:0) Y(7:0) VIDEO RAM HOST BUS $CPU_A(17:3) L2 CACHE $CPU_D(63:0) PCI1130 $CPU_A(31:3) AD(31:0) SA(16:0),LA(23:17) PCI BUS CPU $CPU_D(63:0) $CPU_A(31:3
4.2.2 Memory Subsystem The memory subsystem comprises the following components: ♦ Main memory ♦ L2 Secondary Memory (cache) ♦ Flash ROM The Extensa Series uses fast Extended Data Out (EDO) DRAM for main and video memory and high-speed synchronous, pipelined burst SRAM for L2 cache memory. Main BIOS and Video BIOS are stored in Flash ROM. The Extensa 900 Series Memory Address Map is shown in Table 4-2.
4.2.2.2 Flash ROM All versions of the Extensa notebook family use a "Flash" ROM that contains both the main system BIOS and the VGA BIOS. The Flash ROM contains "Boot Block" logic that allows downloading new versions of BIOS without destroying the Boot Load area. The Flash ROM execution is 8 bits wide. However, better performance can be attained by enabling the Shadow ROM in the CMOS setup routine or by selecting the Windows Control Panel Applet.
Table 4-4 I/O Address Map Address Range 000 - 00F 020 - 021 022 - 023 040 - 043 048 - 04B 060 - 06E 070 - 071 080 - 08F 0A0 - 0A1 0C0 - 0DF 178 - 17A 1F0 - 1F7 170 - 177 3F6, 3F7 220 - 22F 240 - 24F 260 - 26F 280 - 28F 278 - 27F 2E8 - 2EF 2F8 - 2FF 378 - 37A 3B4, 3B5, 3BA 3C0 - 3C5 3C6 - 3C9 3C0 - 3CF 3D0 - 3DF 3E0 - 3E1 3E8 - 3EF 3F0 - 3F7 3F8 - 3FF CF8 - CFF Device DMA controller-1 Interrupt controller-1 M1523 registers Timer 1 Timer 2 Keyboard controller Real-time clock and NMI mask DMA page register In
4.2.3.1 ALI M1521 (Memory, Cache and DRAM Controller) The M1521 provides the system controller and data path components for the Extensa 900 Pentium-based system. It provides 64-bit CPU bus interface, 32-bit PCI bus interface, 64/72 DRAM data bus with ECC or parity, secondary cache interface including pipeline burst SRAM or asynchronous SRAM, PCI master to DRAM interface, four PCI master arbiters, and a UMA arbiter. The M1521 bus interfaces are designed to interface with 3V and 5V buses.
♦ Supports the most flexible six 32-bit populated banks of DRAM (to spare 12 MB for Windows 95) ♦ Supports SIMM and DIMM ♦ UMA (unified memory architecture) ♦ Dedicated UMA arbiter pins ♦ Supports several protocols from major graphics vendors ♦ SFB size : 512 KB/1 MB/2 MB/3 MB/4 MB ♦ CPU could access frame buffer memory through system memory controller ♦ Alias address for frame buffer memory ♦ Fully synchronous 25/30/33 MHz 5V PCI interface ♦ PCI bus arbiter: five PCI masters and M1523 supported ♦ DWORDs f
One eight-byte bidirectional line buffer is provided for ISA/DMA master memory read/ writes. One 32-bit wide posted-write buffer is provided for PCI memory write cycles to the ISA bus. It also supports a PCI to ISA IRQ routing table and level-to-edge trigger transfer. The chip has two extra IRQ lines and one programmable chip select for motherboard Plug-and-Play functions. The interrupt lines can be routed to any of the available ISA interrupts.
♦ Provides type F transfers ♦ Interrupt controller ♦ Provides 14 interrupt channels ♦ Independently programmable level/edge triggered channels ♦ Counter/Timers ♦ Provides 8254 compatible timers for system timer, refresh request, speaker output use ♦ Keyboard controller ♦ Built-in PS2/AT keyboard controller ♦ The specific I/O is used to save the external TTL buffer ♦ Real time clock ♦ Built-in real time clock ♦ 128-byte CMOS RAM with 2 ♦ Plug-and-Play port support ♦ Programmable chip select ♦ Steerable inte
♦ Supports PIO modes up to mode 5 timings, and multiword DMA mode 0, 1, 2 ♦ 8 x 32-bit pre-read and posted-write buffers ♦ Dedicated pins for ATA interface ♦ Supports up to 256 KB ROM size decode ♦ Reserved USB interface ♦ 208-pin PQFP package 4.2.4 Video Subsystem The video subsystem is implemented on the VGA Video Board and on the Main Board Assemblies. The notebook contains a built-in LCD and features simultaneous LCD and external VGA display. The video subsystem includes a 1.
pixel boundary (YUV data is converted to RGB "on-the-fly" on output). Non-rectangular windows are supported via color keying. The data can be functionally zoomed on output up to 8x to fit the onscreen window and can be horizontally and vertically interpolated to scale or zoom artifacts. Interlaced and non-interlaced data are supported in both capture and display systems. 4.2.4.
as support for the expansion audio mixer chip, the ES978, and a new IIS serial port and stereo D/A converter. A 4-wire expansion analog bus and 2-wire serial control bus connect the ES1878 and the ES978. 4.2.5.
functions. All popular 5.25-inch and 3.5-inch floppy disk drives, including the 2.88 MB, 3.5-inch floppy disk drive, are supported. In addition, automatic media sense and 2 Mbps tape drive support are provided by the FDC. The two UARTs are fully NS16450 and NS16550 compatible. Both ports support MIDI baud rates and one port also supports IrDA 1.0 SIR (with data rate of 115.2 Kbps), IrDA 1.1 MIR and FIR (with data rate of 1.152 Mbps and 4.0 Mbps respectively), and Sharp SIR (with data rate of 38.
♦ Extended Capabilities Port (ECP) compatible, including level 2 support ♦ Bidirectional under either software or hardware control ♦ Compatible with ISA, and EISA, architectures ♦ Ability to multiplex FDC signals on parallel port pins allows use of an external Floppy Disk Drive (FDD) ♦ Includes protection circuit to prevent damage to the parallel port when a connected printer is powered up or is operated at a higher voltage ♦ UARTs ♦ Software compatible with the PC16550A and PC16450 ♦ MIDI baud rate suppo
♦ 16 bit addressing (full programmable) ♦ 10 selectable IRQs ♦ 4 selectable DMA Channels ♦ 3 SIRQ Inputs allows external devices to mapping IRQs ♦ 100-pin TQFP package - PC87338VJG 4.2.8 Hard Disk Drive Subsystem The Hard Disk Drive Subsystem, implemented on the Main Board Board and on the associated hard disk drive module(s), provides disk storage for all system software and user files. The notebook is equipped with a high-capacity hard disk drive.
♦ CMD's complete set of 32-bit drivers handle both DMA and PIO ♦ Fully compatible with the latest PCI, PCI IDE, ATA-2, Enhanced IDE, Fast IDE, ATAPI, plug and play, and ATA-2 Power Management Feature Set ♦ Fully supports all ATAPI-compatible devices, including CD-ROM, tape, MO, and other devices ♦ Fully supports legacy (IRQ 14 and 15) ♦ Hardware and software mode switching and chip enable/disable capabilities ♦ Programmable read-ahead and write-back buffers enhance transfer rates ♦ Fully compatible with a
8-, 16-, and 32-bit cards using full 32-bit PCI cycles for maximum performance. Independent 32-bit write buffers allow fast-posted writes to improve system-bus utilization. An advanced CMOS process is used to achieve low system-power consumption while operating at PCI clock rates up to 33 MHz. Several low-power modes allow the host power-management system to further reduce power consumption. 4.2.10.1 PCI 1130 Features ♦ 3.3V core logic with universal PCI interface compatible with 3.
♦ Supports PC/PCI DMA on both PC Card sockets ♦ Supports Zoom Video Mode ♦ Supports Ring Indicate ♦ Packaged in 208-pin Thin Plastic Quad Flatpack (PDV) 4.2.11 Power Subsystem The notebook is equipped with a software/hardware monitored/controlled Power Subsystem that minimizes battery usage for prolonged battery operation and automatically recharges the batteries when the notebook is used with an AC adapter.
BAT+ AD+ M AX213 RESUME GLUE LOGIC 8MB DRAM / DIMM *1 VRAM 65550/S3 M 38813 M 6375 LCD CHARGER SW M+3.3V M+5V M+5V M+5V M+5V PCI0643 M 1523 M 1521 +3.3V SW SW +5V +5V +5V +3.3V 87338 HDD SW M+7V +5V +12V SW M+12V CD/DC2 FDD HDD/ CD CD_5V PCI0643 SW +5V +3.3V CHARGER ADVANCED PCI CARD +12V Notebook MPB FLASH ROM ES1878S AUDIO_VDD L2 CACHE CPU +2.9V SW M+2.9V DC/DC CONVERTER 9088MAL M+3.3V SW +3.
4.2.11.1 ALI M6377 Power Management Unit The major features of the ALI M6377 Power Management Unit include: ♦ Three operation states — ON state — DOZE state — SLEEP state ♦ Programmable DOZE and SLEEP timers ♦ Programmable EL timer for backlight control ♦ Three output pins depending on operation state, each pin is programmable and power configurable.
Table 4-5 M6377 GPIO Port Definitions Item Description GPIO17 (W/R) 1: Connect serial BUS with charger ROM. 0: Disconnect serial BUS with charger ROM. GPIO20 is the CLK and GPIO21 is the DATA for the serial BUS. GPIO16 Reserved GPIO15 (W/R) 1: CPU high temperature SMI is allowed. 0: CPU low temperature SMI is allowed. GPIO14 (W/R) 1: Connect the ZV BUS with PCMCIA card. 0: Connect the ZV BUS with Feature board.
Table 4-5 M6377 GPIO Port Definitions (Continued) Item Description GPIO20 (W/R) GPIO20 is the common CLK for below serial BUS: A. For Charger ROM, Inverter ROM, MPB ROM serial BUS. B. For Brightness & Contrast control. C. For Feature board. GPIO37 (W/R) GPIO37 is serial DATA for Feature board serial BUS, and GPIO20 is the serial CLK. GPIO36 (W/R) 1: Normally 0: Disable MPB power. GPIO35 GPIO34 GPIO33 (W/R) The system use 3-wire BUS to communicate with thermal sensor (DS1620).
4.2.11.2 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 Frequency: 50 to 60 Hz 4.2.
5 Troubleshooting Procedures 5.1 Introduction This section provides an overview of the fault isolation process, provides guidelines for isolating 900 Series computer malfunctions to replaceable subassemblies and provides instructions for executing diagnostics and interpreting error messages. 5.
® START When Power button is pressed, no indication of power is present (dark LCD, no Status icons lit, no disk drive activity, etc.) COMPUTER TROUBLE INDICATION ? NO DEAD COMPUTER SYMPTOMS ? YES NO Press Power button; Selftest automatically runs when power turned on. MPB NO TROUBLE INDICATION ? See Paragraphs 5.3.1 & 5.3.2 See Paragraph 5.4 RUN SELF TEST ERROR MESSAGE ? YES See Paragraphs 5.3.3.1 and 5.3.3.2 NO MODEM PROBLEM ? YES See Paragraph 5.3.
5.3 Troubleshooting Procedures The built-in self test program and the disk resident diagnostics program (PC-Doctor) are useful tools in computer troubleshooting. However, if the computer has a power, keyboard or display problem, you must first solve this problem before running diagnostics. If the computer powers up and displays messages on the LCD or emits a series of beeps, skip to Paragraph 5.3.3.1 for further instructions. 5.3.
Table 5-1 contains fault isolation information for Display Problems on the notebook. Symptoms are listed along the left side of the chart and the various Display FRUs are listed along the top of the chart. Within the body of the table are the probabilities of each of the FRUs causing that particular problem. For example, a single display line on the screen is most likely caused by the LCD Panel or Display Cable; other components have a low probability of causing the problem.
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 5-2. Note: In the event of a hardware problem that affects the display, the Notebook also communicates errors via a series of beeps. The interpretation of the beep codes is provided in Table 5-3. Note: Refer to Appendix C for POST BIOS listing.
Table 5-2 Power On Self Test Error Messages Message Possible Cause Action Diskette drive A failure The drive failed or is missing. Check the drive to determine the problem. Diskette read failure - press F1 to retry boot, F2 for SETUP utility The disk is either not formatted or is defective. Replace the disk with a bootable disk and retry. Display adapter failed, using alternate The primary video adapter failed. Check the primary video adapter.
Table 5-2 Post Error Messages (continued) Message Possible Cause Action No boot device available press F1 to retry boot, F2 for SETUP utility Either disk drive A:, the fixed diskette, or both the disk and fixed diskette are defective. Try rebooting. If the problem persists, replace the disk or the fixed diskette. No boot sector on fixed disk - press F1 to retry boot, F2 for SETUP utility The C: drive is not formatted or is not bootable. Format the C: drive and make it bootable.
Table 5-2 POST Error Messages (continued) Message Possible Cause Action Keyboard clock line failure The keyboard, the keyboard cable connection, or the keyboard controller is defective. Make sure the keyboard cable and keyboard are connected properly. Check the keyboard controller and the system board. Turn the power off, then back on again. If the problem persists, contact qualified service personnel. Keyboard data line failure The keyboard controller firmware has failed.
failures are associated with the Upper and Lower Electronics Boards and may require board removal/replacement. Try running PC-Doctor (Paragraph 5.5) if possible to verify the source of problem.
Table 5-4 Run-Time Error Message Troubleshooting Message Cause Action I/O card parity interrupt at address. Type (S)hut off NMI, (R)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.
Table 5-5 General Troubleshooting Procedures Problem No power Corrective Actions 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 into the motherboard connector properly? Otherwise, replace the powerboard.
Table 5-5 General Troubleshooting Procedures (continued) LCD screen does not show data Battery Power does not last System halts during boot sequence I/O processing malfunctions Diskette drive does not work Hard disk drive malfunction 5-12 Troubleshooting Procedures 1. Check the LCD Status Bar if Suspend mode is activated. Press any key or press the power button to resume operation and display. 2. Check if LCD cables are disconnected or loose. 3.
Table 5-5 General Troubleshooting Procedures (continued) Memory malfunction 1. Check if the memory module is inserted properly. 2. Replace the memory module. 3. Replace the motherboard. External keyboard or PS/2 mouse doesn’t work 1. Check if the keyboard or the mouse are connected properly. Check if the Y-cable is being used. Power off system first before plugging in the device. 2. Replace the keyboard or mouse. 3. Replace the motherboard. PCMCIA card does not work 1.
5.5 Fault Isolation Using Diagnostics PC-Doctor, supplied with the Extensa Series Notebooks, is 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).
5.5.2 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 - Provides context sensitive information from every PC-Doctor screen- accessed by pressing F1 key once (pressing F1 twice gets you into the online manual) 5.5.
6 Field Service 6.1 Introduction This section contains general preventive and corrective maintenance procedures that apply to all members of the Extensa 900 Notebook family. The first part of the section describes the computer cleaning procedures and preferred handling procedures for sensitive components (e.g., disk drives, batteries).
6.2.2 Handling the Computer The notebook computer requires reasonable care and handling for extended life.
6.2.4 Password Caution The notebook computer can be password protected to prevent unauthorized use. However, if the password is lost, the notebook must be returned to the Texas Instruments manufacturing facility in Temple, Texas U.S.A. to restore access. This service is not covered by warranty. 6.
Notebook Assemblies Cover-Display Assembly Base Assembly Mobile Productivity Base Assembly Figure 6-1 Extensa 900 Series Assemblies 6.4.1 Cover-Display Assembly The Cover-Display Assembly shown in Figure 6-2, contains the LCD screen, DC-AC Inverter Board, DC-DC Inverter Board, bezel LCD cover and various other components as listed in Table 6-1.
. DC-AC Inverter Board Assembly (large PWB) CN2 LCD Assembly Latch Securing Inverter Boards LCD Inverter Board (smaller PWB) Figure 6-2 Display FRUs Table 6-1 Top Cover Assembly Field-Replaceable Units (FRUs) FRU Description Assembly/ Disassembly Paragraph TI Part No. PWB INVERTER, DSTN, EXT. 90X 6.5.19 9813635-0001 BEZEL, DISPLAY DSTN 12.1", EXT. 90X 6.5.17 9813636-0001 LCD PANEL, DSTN, 12.1",SHARP, EXT. 90X 6.5.18 9813637-0001 DISPLAY ASSY. DSTN, 12.1", SHARP, EXT. 90X 6.5.
6.4.2 System Base Assembly As shown in Figure 6-3, the System Base Assembly houses a variety of field-replaceable subassemblies and components. The various assemblies and reference paragraph numbers containing removal/replacement procedures are listed in Table 6-2.
Table 6-2 Base Assembly Field-Replaceable Units (FRUs) Base Assembly FRU Description Assembly/ Disassembly Paragraph TI Part No. PWB Assemblies PWB ASSY, MAIN BOARD W/O CPU, EXT. 90X 6.5.15 9813651-0001 PWB ASSY, VGA BOARD, EXT.90 X 6.5.11 9813652-0001 PWB ASSY, LED BOARD, EXT. 90X 6.5.8 9813653-0001 PWB ASSY, CPU BOARD, EXT. 90X 6.5.9 9813654-0001 PWB ASSY, DC-IN BOARD, EXT. 90X 6.5.13 9813655-0001 PWB ASSY, BATTERY BOARD, EXT. 90X 6.5.12 9813656-0001 PWB, POWER SUPPLY, EXT. 90X 6.5.
Table 6-2 Base Assembly Field-Replaceable Units (FRUs) Base Assembly FRU Description Assembly/ Disassembly Paragraph TI Part No. FDD, EXT. 90X Ref 9813649-0001 HDD BRACKET ASSY, EXT. 900 6.5.4 9813683-0001 CASE, UPPER, EXT. 90X 6.5.10 9813646-0001 CASE, LOWER, EXT. 90X 6.5.10 9813647-0001 BATTERY, LI-ION, EXT. 90X 6.5.1 9813633-0001 HEAT SINK, MAIN, EXT. 900 6.5.6 9813685-0001 AC ADAPTER, 45W, ADP-45HP, EXT. 6XX Ref 9813497-0004 PCMCIA MODULE, EXT. 900 6.5.
Table 6-2 Base Assembly Field-Replaceable Units (FRUs) Base Assembly FRU Description Assembly/ Disassembly Paragraph TI Part No. TOUCHPAD, GND PLATE, EXT. 900 6.5.16 9813690-0001 CABLE, FLEX, LED BOARD, EXT. 90X 6.5.8 9813691-0001 6.4.3 Mobile Productivity Base Assembly The FRU list for the MPB is provided in Table 6-3. The major MPB FRUs are identified in Figure 6-4. Table 6-3 Mobile Productivity Base FRUs FRU Description Assembly/ Disassembly Paragraph TI Part No.
Upper Cover of Mobile Productivity Base Dock Release Lever Lever Release Latch DC-DC Converter Main Board Assembly Dock Mechanism MPB with Upper Cover Removed Figure 6-4 Mobile Productivity Base Major FRUs 6.5 Notebook FRU Replacement Procedures The following paragraphs contain field service-level removal/replacement procedures for the 900 Series Notebook Computers. Most FRU removal/replacement procedures involve connecting and disconnecting cable connectors.
Unplugging the Cable Connecting the Cable Figure 6-5 Removing/Installing Cables with Locking-Type Connectors 6.5.1 Removing/Replacing the Notebook Battery Pack Before performing any of the assembly/disassembly procedures, always disconnect the AC adapter from the notebook and remove all battery packs. The procedure for removing and replacing the notebook battery pack is as follows: 1. Turn off the computer and disconnect the AC adapter from the computer. 2.
Unlock Battery Pack Remove Battery from Front of Notebook Unlock the Battery Pull Battery Out of Unit Flush If Battery Lock comes off, reinstall as shown Slide Figure 6-6 Notebook Battery Removal/Replacement 6.5.2 Removing/Replacing PCMCIA Options The procedure for removing and replacing the PCMCIA options is as follows: 1. Turn off the computer and remove the battery pack(s) as described in Paragraph 6.5.1. 2.
Figure 6-7 Installing/Removing PCMCIA Options 6.5.3 Installing/Removing the Mobile Productivity Base The procedure for removing and replacing the Mobile Productivity Base assembly is as follows: 1. Power down the notebook and disconnect the AC adapter if installed. 2. Slide the lever release latch to the front of the MPB to release the docking lever (refer to Figure 6-8). 3. Swing the Docking Lever outward a full 90 degrees from the side of the MPB.
Docking/ Undocking Lever Lever Release Latch Left Side Right Side Figure 6-8 Removing/Replacing the MPB 4. The swing lever also pushes the computer up slightly off the MPB allowing you to grasp the computer on the left hand side. 5. Lift the computer up slightly on the left hand side. Hold the computer securely on both ends and pull the computer out of the MPB, left side first as shown in Figure 6-8 6. Close the lever and close the expansion door on the bottom of the computer. 7.
9. Slide the computer into the MPB, right side first, ernsuring that the guides on both the computer and the docking base are securely hooked; then rest the computer on the base. 10. Press and hold down the computer; then swing the lever toward the MPB until the latch release locks the computer in place. 6.5.4 Removing/Replacing the Hard Disk Drive Assembly The procedure for removing and replacing the Hard Disk Drive assembly is as follows: 1.
5. Store the HDD in an antistatic bag. 6. Replacement is the reverse of Steps 1 through 5. 6.5.5 Removing/Replacing the Keyboard Assembly The procedure for removing and replacing the keyboard assembly is as follows: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2.
5. Unplug the keyboard connectors (CN5 and CN14) and set aside the Keyboard Assembly. 6. Replacement is essentially the reverse of Steps 1 through 5. 6.5.6 Heat Sink Assembly Removal/Replacement To remove and replace the Heat Sink Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2.
6.5.7 Display Assembly Removal/Replacement To remove and replace the Display Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.8 Removing/Replacing the LED/Microphone Board Assembly To remove and replace the LED Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.9 Removing/Replacing the CPU Board To remove and replace the CPU Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.10 Removing/Replacing the Top Cover To remove and replace the Top Cover Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
1 2 Remove keyboard and Heat Sink Assemblies 3 Remove four Screws at Bottom of Main Unit 4 Unplug Speaker Connector CN19 an remove screws at fo corners Beginning at left side, unsnap top cover from base assembly Figure 6-15 Removing/Replacing the Top Cover 6-22 Field Service
6.5.11 Removing/Replacing the VGA Video Board To remove and replace the VGA Video Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.12 Removing/Replacing the Power Supply Board To remove and replace the Power Supply Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.13 Removing/Replacing the DC-In Board Assembly To remove and replace the DC-In Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.14 Removing/Replacing the PC Card Module To remove and replace the PC Card Module Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.15 Removing/Replacing the Main Board Assembly To remove and replace the Main Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.16 Removing Touchpad and Speakers To remove and replace the Touchpad and Speakers, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Keyboard Assembly as described in Paragraph 6.5.5. 3. Remove the Heat Sink Assembly as described in Paragraph 6.5.6. 4.
6.5.17 Removing/Replacing the Display Bezel To remove and replace the Display Bezel Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Use a sharp object to remove the six bezel screw covers and remove the six screws. 3. Pull out and remove the Display Bezel. 4.
6.5.18 Removing/Replacing the LCD To remove and replace the LCD, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Display Bezel as described in Paragraph 6.5.17. 3. Remove three screws securing the LCD Assembly and pull up on the LCD Panel (Figure 6-23). 4.
6.5.19 Removing/Replacing the Display Inverter Boards To remove and replace the Display Inverter Boards, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Remove the Display Bezel as described in Paragraph 6.5.17. 3. Gently fold back the foil around the display and unplug the inverter cable, CN2. 4.
6.6 Removing/Replacing MPB FRUs 6.6.1 Removing/Replacing the Media Bay Device To remove and replace a MPB Modular Bay Device (e.g., CD-ROM Drive or Floppy Disk Drive), use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2.
6.6.2 Removing/Replacing the MPB Battery To remove and replace an MPB battery pack or dummy battery pack, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Using your thumbs, unlock the two battery locks at each side of the MPB (refer to Figure 6-26). 3. Pull the module out of the MPB. 4.
6.6.3 Removing/Replacing the MPB Housing To remove and replace the MPB housing, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Using your thumbs, unlock the two battery locks at each side of the MPB (refer to Figure 6-26). 3. Pull the module out of the MPB. 4.
6.6.4 Removing/Replacing the Docking Cable To remove and replace the MPB Docking Cable, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Using your thumbs, unlock the two battery locks at each side of the MPB (refer to Figure 6-26); pull the battery pack out of the MPB. 3.
6.6.5 Removing/Replacing the Docking Mechanism To remove and replace the MPB Docking Mechanism, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Using your thumbs, unlock the two battery locks at each side of the MPB (refer to Figure 6-26); pull the battery pack out of the MPB. 3.
6.6.6 Removing/Replacing the MPB DC-DC Converter To remove and replace the MPB DC-DC Converter Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Using your thumbs, unlock the two battery locks at each side of the MPB (refer to Figure 6-26); pull the battery pack out of the MPB. 3.
6.6.7 Removing/Replacing the MPB Main Board Assembly To remove and replace the MPB Main Board Assembly, use the following procedure: 1. Turn off the computer; disconnect the AC power adapter (if it is attached), and remove the battery pack and PCMCIA cards as described in Paragraphs 6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached. 2. Using your thumbs, unlock the two battery locks at each side of the MPB (refer to Figure 6-26); pull the battery pack out of the MPB. 3.
A Notebook Schematic Diagrams A.1 Introduction This section contains schematic diagrams for the Extensa 900 Series Notebook Computer. Logic schematics for the Mobile Productivity Base are provided in Appendix B of this manual.
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 1 of 30) A-2 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 2 of 30) Notebook Schematic Diagrams A-3
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 3 of 30) A-4 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 4 of 30) Notebook Schematic Diagrams A-5
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 5 of 30) A-6 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 6 of 30) Notebook Schematic Diagrams A-7
DIMM SOCKET DRAM_VCC 2 $MA[0..11] 2,6 $MD[0..63] $MD[0..
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 8 of 30) Notebook Schematic Diagrams A-9
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 9 of 30) A-10 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 10 of 30) Notebook Schematic Diagrams A-11
Figure A-1 Motherboard PWB Logic Diagrams (Sheet 11 of 23 ) A-12 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 12 of 30) Notebook Schematic Diagrams A-13
+5V SB: ADD DUMMY RESISTER TO U40 PIN 22 RTC +5V 1 R105 10KR3 CX21 SCD1U 2 SD[0..7] SD[0..
KBC_5V KEYBOARD CONTROLLER KBC_5V +5V C154 SC1KP 4,13,15,17,19,20,25 C153 SCD1U M+5V 1 KKKKKKKKKKKK CCCCCCCCCCCC O O O OO OO O O O OO L L L LL LL L L L LL 1 2 3 4 5 6 7 8 9 1 1 1 0 1 2 SD[0..7] SD[0..
SUPER I/O CONTROLLER PD[0..7] 16,21,22 PP PP DD DD 0 1 2 3 PPPP DDDD 4 5 6 7 8 7 6 5 8 7 6 5 RP12 SRN33 RP11 SRN33 RP10 1 2 3 4 R42 16,22 4 STROB# 1 IRQ[3..7] I I RR QQ 3 4 +5V 4 RSTDRV C112 SCD1U $SIO_24M R57 47R3 2 R52 NOT INSTALLED 4 TC 2 0WS# 4 4,19 DRQ2 4 DACK#2 8 $SIO_24M 100R3 IRSL1 C118 SC47P 4 IOW# 4 IOR# 4 AEN 4,13,14,17,19,20,25 SD[0..
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 16 of 30) Notebook Schematic Diagrams A-17
) Figure A-1 Notebook Main Board Logic Diagrams (Sheet 17 of 30) A-18 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 18 of 30) Notebook Schematic Diagrams A-19
) Figure A-1 Notebook Main Board Logic Diagrams (Sheet 19 of 30) A-20 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 20 of 30) Notebook Schematic Diagrams A-21
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 21 of 30) A-22 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 22 of 30) Notebook Schematic Diagrams A-23
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 23 of 30) A-24 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 24 of 30) Notebook Schematic Diagrams A-25
DEBUG-BD GOLDEN FINGER +5V +5V SD[0..
PS2 INTERFACE +5V F1 L9 1 1 2 8 7 6 5 2 SPOLY100 MLB321611 RP3 SRN10K CN9 1 2 3 4 7 R1 14,21 14,21 1 KBCLK KBDATA 14,21 PS2DATA 2 1 R2 1 PS2CLK 14,21 L4 47R3 R4 1 2 L5 2 47R3 R3 1 2 1 2 1 47R3 47R3 2 MLB321611 1 L7 2 6 5 4 3 2 1 MLB321611 L6 2 MLB321611 MLB321611 8 C79 SC47P C78 SC47P C77 SC47P C76 SC47P SD5339810-6 +5V 8 7 6 5 RP31 SRN10K TOUCHPAD CONNECTOR +5V 1 2 3 4 CN19 17 18 1 2 3 18 SPK_R1 4 5 14 TCLK 6 TDATA 7 14 8 9 10 11 18 SPK_L1 12 13 14 C23
CHARGER INTERFACE CIRCUIT BAT+ CN21 +5VSB +5VSB 1 2 3 4 5 6 7 8 BAT_VS SMB1_CLK 14 14 SMB1_DATA BAT_TH +5VSB 1 +5VSB R253 47KR3 C351 SCD1U U86F 1 4 AD+ 2 C352 SC1KP AD_IN# R252 MOLEX-CON8 12 3 Q9 RN1424 1 22 1 13 150KR3 7 AD5V AD5V 23 SSHC14 BATTERY CONNECTOR ADAPTOR PLUG-IN DETECTION CIRCUIT BAT+ BAT+ SMB1_CLK, SMB1_DATA: CHARGER SMB I2C +5VSB 1 1 3 5 7 9 11 13 15 17 19 SMB1_CLK 21 BAT_VS CSO 19 CHGR_CLK CHARGE_LED 28 CN22 2 4 6 8 10 12 14 16 18 20 R251 10KR3 CSI, CSO:CHARG
LED INTERFACE CHARGE_LED# 3 Q1 RN1424 1 2 27 CHARGE_LED +5VSB M+5V C74 SCD1U 3 Q2 RN1424 1 2 21 DK_CHG_LED +5V C72 SCD1U M+5V C73 SCD1U +5V +5VSB CN7 20 19 1 2 3 SB: ADD LOWBAT_LED 4 20 @COVER_SW COVER_SW LOWBAT_LED 5 POWER_SW2 6 7 POWER_SW2 19 29 8 CHARGE_LED# 14 NLLED# NLOCK_LED# 14 CLLED# CLOCK_LED# 9 10 HDD/FDD_LED# 12 STANDBY_LED# 14 MIC_R 11 13 15 18 16 INTMIC 18 17 AUD_GND SD5255917-16 +5V CLOSE TO CONNECTOR 1 R141 10KR3 2 24 HDD_LED# 21 DK_DISKLED# HDD/FD
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 29 of 30) A-30 Notebook Schematic Diagrams
M+5V +5V U34A 1 4 1 2 11 SSHC14 7 +5V U53E 1 4 13 10 M+5V M+5V U1E 1 4 11 SSHC14 7 13 SSHC14 7 9 SSHC14 7 2 SSHC14 7 1 4 U11B 7 SSHC14 3 4 +5V U12D 1 4 12 1 SSHC14 7 M+5V U11A 1 4 12 +5V U8F 1 4 12 13 13 SSHC14 7 M+5V U34F 1 4 10 +5V U1F 1 4 10 11 SSHC14 7 M+5V U34E 1 4 12 SSHC14 7 M+5V U53F 1 4 12 13 SSHC14 7 U19F 1 4 8 SSHCT04 7 +5V M+5V M+5V U67B 1 4 4 M+5V U67C 1 4 5 8 13 7 SSHC32 VCC D 11 10 7 14 2 12 6 3 7 SSHC32 U
B MPB Schematic Diagrams B.1 Introduction This section contains schematic diagrams for the Extensa 900 Mobile Productivity Base. Logic schematics for the MPB are provided in Appendix A of this manual.
B-2 MPB Schematic Diagrams 2 Figure B-1 MPB CPU Board Logic Diagrams (Sheet 1 of 3) $CPU_A[3..31] $BE#[0..
Figure B-1 MPB CPU Board Logic Diagrams (Sheet 2 of 3) MPB Schematic Diagrams B-3
VCC_CPU C19 C43 C4 C2 C9 C21 C16 C12 SCD1U SCD1U SCD1U SCD1U SCD1U SCD1U SCD1U SCD1U C6 SCD1U VCC_CPU C30 SCD1U C22 SCD1U C13 SCD1U C29 SCD1U C40 SCD1U C25 SCD1U C36 SCD1U 1 CPU_VOLT0 1 R25 36KR3D 1 CPU_VEND 2 1 CPU_ID3 1 CPU_VOLT1 1 CPU_ID2 1 CPU_ID1 1 CPU_ID0 1 CPU_THM 1 1 R11 0R3 1 R12 0R3 2 1 1 R3 0R3 2 2 R2 0R3 1 R14 0R3 TH1 TH301 2 2 2 1 CPU_THMG FOR SHIGA Not Installed SHIVA NOT INS.
CLOSE BATTRY CONN.
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 1 of 10) B-6 MPB Schematic Diagrams TP153 TP154 TP162 TP24 TP144 TP160 TP163 TP-1 TP-1 T146 TP-1 T145 TP-1 T141 TP-1 T148 TP-1 T147 T151 SB 5 FDD/PRT# PD0 1,5 PD1 1,5 PD2 1,5 PD3 1,5 PD4 1,5 PD5 1,5 PD6 1,5 PD7 1,5 9,10 KBCLK 9,10 KBDATA 7,10 CHARGER_ON 3 DSKCHG# 3,10 HDSEL 3 RDATA# 3 WRTPRT# 3 TRK0# 3,10 WGATE# WDATA# 3,10 STEP# 3,10 FDIR 3,10 MTR0# 3,10 DR0# 3,10 3 INDEX# PAGE 1 PAGE 2 PAGE 3 PAGE 4 PAGE 5 PAGE 6 PAGE 7 PAGE
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 2 of 10) MPB Schematic Diagrams B-7 [0..15] FRAME# CD_PASS# Q Q 1,8,10 IDE_D0 IDE_D1 IDE_D2 IDE_D3 IDE_D4 IDE_D5 IDE_D6 IDE_D7 IDE_D8 IDE_D9 IDE_D10 IDE_D11 IDE_D12 IDE_D13 IDE_D14 IDE_D15 NC VCC C/BE#[0..
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 3 of 10) B-8 MPB Schematic Diagrams
+5V +5V AD+ T329 1 TP329 R102 DUMMY-R3 1 T332 R101 TP332 100KR3 C88 C89 SCD1U SC1KP TP-1 TP-1 2 T330 DK_PJIN# DK_PJIN# 1,10 2 Q7 3 2 TP-1 TP330 1 2N7002 TP-1 TP328 TP333 AD+ TP-1 T333 CN13 2 4 5 8 1 2 7 10 DK_LINEIN_L 1 9 12 1 1KR6 DK_LINEIN_R +5V 13 1 DK_MIC AMP_5V 11 14 R159 1 T328 3 6 LINE_OUT_R R162 +5V 1 LINE_OUT_L 16 2 15 18 1 DK_MIC_PJIN L7 C87 17 1 2 SCD1U 20 19 1KR6 SCHOKE-D 3 D14 SB HRS-CONN20D BZX84C4V3L 1 AUD_GND C85 SC
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 5 of 10) B-10 MPB Schematic Diagrams
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 6 of 10) MPB Schematic Diagrams B-11 TP296 TP359 TP318 TP257 TP249 1,10 2 1 TP341 TP360 TP305 DOCKPWOK ST22U35VDM C66 TP-1 TP-1 T282 TP-1 T341 TP-1 T360 T305 1 2 1 3K3R3 2 TP360 1 3 2 BZX84C4V3L D13 ON/OFF# 1 2 +12V +8V +5V TP341 U11A 2 C67 100KR3 R140 8 7 6 5 8 R111 SC1KP C61 1 7 1 4 +5V 9 1 SSHC14 U11D 10KR3 2 2 1,3,10 R112 1 3 C70 SCD1U TP249 10KR3 2 ST100U16VDM 1 R150 470KR3
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 7 of 10) B-12 MPB Schematic Diagrams AD+ CHARGER_ON DK_BL2# 2 1 BAT_VS ID_CLK DK_CHG_LED 1,10 SMB_CLK 10 9 8 7 6 5 4 3 2 1 DCBATOUT 10 9 8 7 6 5 4 3 2 1 C74 SC1KP BAT+ DK_BL3# AD5V DK_BL1# DCBATOUT ID_DATA BAT_TH CSI SMB_DATA MOLEX-CON8 MOLEX-CONN20 20 19 18 17 16 15 14 13 12 11 CN8 MOLEX-CONN20 20 19 18 17 16 15 14 13 12 11 CN9 BAT_TH R83 100KR3 BAT+ SMB_CLK SMB_DATA CSO 1 1 2 3 4 5 6 7 8 CN10 SC1KP SCD1U C7
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 8 of 10) MPB Schematic Diagrams B-13 TP355 TP-1 T200 TP-1 T201 1394-3 1394-1 TP-1 T213 TP-1 T214 1394-5 1394-7 TP-1 TP-1 T195 TP-1 T203 1394-10 1394-9 1394-4 TP-1 T199 1394-6 TP-1 T202 TP-1 T198 C15 SC39P R46 47R3 TP356 1394-2 2 1 C12 SC39P R48 47R3 DEVSEL# T197 2 1 1394-8 TP358 IRDY# FRAME# TP302 TP358 TP309 TP356 1394POWER TP342 TP306 TP309 $PCICLK1 TP-1 TP-1 T124 TP-1 T342 T306 TP-1 T104 TP-1
15V/1.1A +5V F2 1 2 L1 TP117 2 +5V 1 SPOLY100 MLB321611 1 4 4 U2B SMD100 MLB321611 1 1 KBCLK 1 R94 2 8 2 6 5 CN11 5 7 3 1 2 4 2 1 47R3 1,10 L2 1 TP42 L3 47R3 TP41 KBDATA 2 R93 MLB321611 9 +5V 6 C77 C78 7 KBMS-CONN U2C 1 4 9 SC47P SC47P SSHC00 8 10 KEYBOARD CONN +5V SSHC00 7 SMD100 F3 L4 2 1 TP38 2 1 SPOLY100 15V/1.
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 10 of 10) MPB Schematic Diagrams B-15 PERR# 2,8 AD10 AD11 1,2,8 1,2,8 3 CD_PASS# 3 DSKCHG# C/BE#3 1 FDIR 8 Y2 3 WRTPRT# 3 FDD_EXIST# IDE_IOCS16# 1,2,8 AD26 1,2,8 C/BE#0 AD24 1,2,8 STOP# AD13 1,2,8 1,2,8 1,2,8 Y0 INTC# 8 8 Y1 8 Y3 AD15 8 Y5 Y7 8 Y4 8 8 1 CRT_B CRT_VS 1,2,8 1 AD14 TP-1 TP-1 T45 TP-1 T44 TP-1 T43 T37 TP-1 TP-1 T35 TP-1 T33 TP-1 T32 TP-1 T27 TP-1 T26 TP-1 T25 T23 TP-1 TP-1 T22
RGBGND RGBGND CN2 1 2 ENAVEE C52 2 SCD1U Y[0..7] Y[0..7] 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 27 94 95 96 AD11 29 30 AD12 31 AD13 32 98 99 AD8 AD9 28 AD10 UV[0..7] C/BE#[0..3] 2 AD[0..31] AD[0..31] 2 C/BE#[0..
Figure B-4 MPB VGA Board Logic Diagrams (Sheet 2 of 5) MPB Schematic Diagrams B-17 4 SHFCLK MOD 4 LP 4 LFS 4 1 SRN4K7 RP9 C34 SC47P 1 10R3 R17 1 8 7 6 5 2 C35 SC33P 1 10R3 2 R18 1 1 1 1 1 1 1 PCIRST# SB VAA0 VAA5 C/BE#0 C/BE#1 C/BE#2 C/BE#3 C36 SC33P 1 10R3 2 R19 4 R[0..
Figure B-4 MPB VGA Board Logic Diagrams (Sheet 3 of 5) B-18 MPB Schematic Diagrams VAA[0..8] 2 VMBD[0..15] 2 VAA0 VAA1 VAA2 VAA3 WEA# RASA# VAA0 VAA1 VAA2 VAA3 WEA# RASA# VMBD4 VMBD5 VMBD6 VMBD7 VMBD0 VMBD1 VMBD2 VMBD3 C39 SCD1U VRAMVCC 2 WEA# 2 RASA# VMAD4 VMAD5 VMAD6 VMAD7 VMAD0 VMAD1 VMAD2 VMAD3 C42 SCD1U VRAMVCC VSS DQ15 DQ14 DQ13 DQ12 VSS DQ11 DQ10 DQ9 DQ8 N.C N.C N.C LCAS UCAS OE A8 A7 A6 A5 A4 VSS VCC DQ0 DQ1 DQ2 DQ3 VCC DQ4 DQ5 DQ6 DQ7 N.C N.C N.C N.C WE RAS N.
) 2 R[0..7] SUD[0..
Figure B-4 MPB VGA Board Logic Diagrams (Sheet 5 of 5) B-20 MPB Schematic Diagrams VGAPWR 1 R26 R25 2 2 2 HF70ACB L4 C45 33R3 SCD1U 1 C32 33R3 SCD1U 1 VRAMVCC C7 SC10U16V C23 SC10U16V C24 SC10U16V C14 SCD1U RGBGND RGBGND RGBGND C8 SCD01U AVCC C22 SCD01U CVCC0 C46 SCD01U CVCC1 1 C20 SC10U16V 2 2 +3.3V +5V NOT INS. DUMMY-R3 R32 0R3 R31 4 LCD_3/5V# 1 C6 SCD1U 11 +3.3V 2 ENAVDD 7 1 4 5 +3.
2 1 4 3 AUD_GND DK_MIC DK_MIC_PJIN DK_LINEIN_R DK_LINEIN_L LINE_OUT_R LINE_OUT_L MOJ-D21 JK1 7 9 11 13 15 17 19 8 10 12 14 16 18 20 AUD_GND HRS-CONN20D 1 3 5 CN4 SCD1U C17 2 4 6 C2 AD+ SC1000P50V3JN TR6 +5V 3 DK_PJIN# SBT-0308W 1 2 4 SCD1U C1 DK_MIC_PJIN DK_MIC DK_LINEIN_R DK_LINEIN_L AD+ LINE_OUT_R LINE_OUT_L SC100P25V3KN C13 2 1 SC100P25V3KN C10 C9 SC100P25V3KN 1 1 10KR3 R1 1 1 2 2 L3 HF70ACB 1 2 HF70ACB L5 L2 HF70ACB SC100P25V3KN C4 C3 SC10
+5VSB M+5V +5V +5V MICROPHONE CN2 LED2 CN1 R3 18 1 2 1 2 3 4 5 6 7 8 1 CLOCK_LED STANDBY_LED NLOCK_LED HDD/FDD_LED CHARGE_LED 1 NLOCK_LED 2 LED-G NUMBER LOCK 1KR3 +5V LED3 R4 CLOCK_LED 1 2 1 1KR3 9 10 POWER_SW2 COVER_SW POWER_LED 2 11 12 13 14 15 16 2 LED-G CAPS LOCK +5V LED1 R1 POWER_LED 1 1 2 2 1KR3 17 MOLEX-CON16 LED-G POWER LED +5V LED6 STANDBY_LED R5 1 2 1 1KR3 SW1 1 2 LED-G STANDBY LED +5VSB COVER_SW LED4 3 R6 CHARGE_LED 1 2 SW-SPVE1 2 1 2 LED-G C
C POST BIOS C.1 Introduction This section contains a listing of the POST BIOS calls for the Extensa 900 Series Notebook.
01AH post Dma InitJ, FAR 01CH post Reset PIC ;---------------------------------------------------------------------------; Test the keyboard controller ; Compute the CPU clock speed ; Test the CMOS RAM ;---------------------------------------------------------------------------022H post I8742 Test, FAR 032H post Compute Speed, FAR 034H post Cmos Test, FAR ;---------------------------------------------------------------------------; Optimize chipset timing ; Optimize other hardware ;-------------------------
; Display prompt "Press F2 to enter SETUP" ;---------------------------------------------------------------------------04BH quiet Boot Start, OPTIONAL, FAR 04EH post Copyright Display, FAR 050H cpu Display, FAR 051H eisa Init, OPTIONAL 05AH post Display F2 Message, FAR ;---------------------------------------------------------------------------; Disable the CPU cache ; Size and test the system memory ; Size and test the extended memory ; Test extended memory address lines ; User hook # 1 ;------------------
094H 080H 085H 082H 084H 086H post Disable A20, FAR io Before Init, OPTIONAL pci Init Pcc, OPTIONAL io RS232 Test Code io Parallel Test Code io After Init ;---------------------------------------------------------------------------; Initialize Bios Data Area and Extended Bios Data Area ; Initialize hard and floppy disk controllers ; Initialize MP Environment ;---------------------------------------------------------------------------088H 08CH 090H 08AH 08BH 095H 093H 092H post Bios Init, FAR post Floppy
0B0H post Error Check, FAR 0B2H post Done, FAR 0B4H post One Beep, FAR 0B5H quiet Boot End, OPTIONAL, FAR 0B6H feat Check Password, OPTIONAL, FAR ;---------------------------------------------------------------------------; Shutdown 4 is a boot retry ;---------------------------------------------------------------------------post Shutdown Four TableLABELpost Proc ;---------------------------------------------------------------------------;Clear parity checkers ;Optionally clear the screen ;Optionally displa
