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. Remove the Display Assembly as described in Paragraph 6.5.7. 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. Remove the MPB Housing as described in Paragraph 6.6.3. 4....

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. Table 1-4 Mobile Productivity Base Expansion Features Table 1-4 Mobile Productivity Base Expansion Features Reads from Audio CD, Photo CD or CD-ROM Media Bay 3.5-inch Diskette Drive...

Regulatory Agency Approvals

All Extensa 900 Series products meet the following regulatory agency standards Underwriter's Lab (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) 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

Pcmcia Subsystem

The notebook is equipped with a PCMCIA subsystem that accomodates either two Type I or Type II PCMCIA cards or one Type III card. The heart of the PCMCIA Subsystem is the TI PCI 1130 high-performance PCI-to-PC Card controller that supports two independent PC Card sockets compliant with the 1995 PC card standard. The PCI 1130 provides a set of features that make it ideal for bridging between PCI and PC Cards in both notebook and desktop computers. The 1995 PC Card standard retains the 16-bit PC...

Battery Saving Tips

There are a number of actions you can take to reduce the rate at which your computer depletes the battery. By taking some or all of these actions, you can substantially increase the time you can operate on battery power before recharging the battery Reducing screen brightness Although the screen controller uses new technology to increase brightness without increasing energy consumption, the screen is still the largest single consumer of the battery charge. Reducing the brightness to the lowest...

User Interface to PCDoctor

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 F1 Key - Activates the context-sensitive help feature (pressing F1 twice in a row calls up the online Technical Reference Manual for PC-Doctor) Scrolling windows, which show the results of various operations,...

Extensa Series Specifications

General specifications for the Extensa 900 Series Notebooks are provided in Table 1-5. Table 1-5 Extensa 900 Specifications Table 1-5 Extensa 900 Specifications Internal Hard Disk Drive Disk Storage Capacity Average access time Throughput 16 MB DRAM, 60-ns, page-interleaved 80 MB Available with Mobile Productivity Base option 12.1-inch DSTN, SVGA or 11.3-inch TFT, SVGA Touchpad built-in to the base of the keyboard (select buttons on sides of Touchpad) LCD Characters Line LCD Lines Screen LCD...

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. Table 6-1 Top Cover Assembly Field-Replaceable Units (FRUs) Table 6-1 Top Cover Assembly Field-Replaceable Units (FRUs) BEZEL, DISPLAY DSTN 12.1, EXT. 90X LCD PANEL, DSTN, 12.1,SHARP, EXT. 90X DISPLAY ASSY. DSTN, 12.1, SHARP, EXT. 90X LCD PANEL, TFT, 11.3, FJ, EXT. 90X DISPLAY ASSY, TFT, 11.3, SHARP, EXT. 90X

Section Field Service continued

Removing Replacing the MPB Removing Replacing the MPB Removing Replacing the Docking Cable------------------------6-35 Removing Replacing the Docking Mechanism--------------------6-36 Removing Replacing the MPB DC-DC Converter------------------6-37 Removing Replacing the MPB Main Board Assembly---------------6-38 Appendix A Notebook Schematic Diagrams Appendix B Notebook Schematic Diagrams

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. 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...

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. Remove the screw that secures the Power Supply Board...

Installing an External VGA Monitor

The notebook (and optional MPB) contain an external CRT port that can drive one of a variety of monitor resolutions and colors as summarized in Section 1. The associated connector location and pinouts for the notebook are shown in Figure 2-9. Note Refer to Figure 2-4 for port assignments if using the MPB option. following procedure to install an external monitor Turn off power to both the notebook and monitor. Connect the 15-pin external VGA cable from the monitor to the VGA connector on the...

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. 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...

Overview of Fault Isolation Process

The fault isolation process (summarized in Figure 5-1) consists of the following steps Checking the Notebook power system (including battery packs and AC adapter connections) - refer to Paragraph 5.4. Checking Switch settings (ensuring Power is On and notebook correctly configured) - Pressing the Shift key to ensure that Notebook is not in Suspend mode - Verifying if computer is configured to boot from the A Drive or C Drive - Checking LCD brightness adjustment (press Fn-Up Arrow keys to...

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. 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 Initialize Printer* Select In* LPT 18 VCC Strobe* Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5...

PCDoctor Diagnostics Program

The Extensa 900 Series Notebooks are shipped with PC-Doctor for Windows, a powerful diagnostics tool that can help you scan a system for viruses, determine the hardware configuration of a local or remote system, benchmark its performance, analyze the performance of all subsystems, and perform a suite of interactive and non-interactive tests on attached devices (such as printers, VGA monitors, SCSI devices, CD-ROM drives). The test results are stored in a log which can be printed out (by...

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 Table 6-3 Mobile Productivity Base FRUs PWB ASSY, CHARGER BOARD, MPB, EXT. 90X PWB ASSY, DC-IN BOARD, MPB, EXT. 90X PWB ASSY, BATTERY BOARD, EXT. 900 (same as used in Notebook) Figure 6-4 Mobile Productivity Base Major FRUs

Initial Software Load

After unpacking and setting up the notebook for the first time, you must perform an initial software load that takes approximately 30 minutes. Because of the way Windows 95 structures its files, stopping in the middle of the setup process can cause irreversible file damage. 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...

Memory Subsystem

The memory subsystem comprises the following components L2 Secondary Memory (cache) 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. Reserved for graphics display buffer Duplicate of code assignment at 0E0000-0FFFFF The DMA Channel Map is listed in Table 4-3.

Power On Self Test

The Extensa line of notebook computers contain a BIOS-resident, Power On Self Test (POST) that automatically performs a test of memory and all major circuits each time 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.

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. The Processor also interacts with other hardware logic to provide the power savings...

Installing an External Serial Port Device

The notebook contains an external RS-232 serial port with a 9-pin, male DB-9 connector as shown in Figure 2-10 (25-pin cables require the use of an adapter for use with the 9-pin port). The serial ports are used to interconnect such devices as 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...

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 files Save all open files frequently while the computer is in a low-battery condition. Turning off the alarm Turn off the audible alarm by pressing Fn+End (Mute). Reducing screen brightness Reduce...

Removing Replacing the Mpb Dcdc 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. Remove the MPB Housing as described in Paragraph...

Handling the Computer Battery Pack

The battery pack furnished with the computer requires reasonable care and handling to ensure efficient operation and maximum life. Periodically inspect the battery terminals and the batteries for evidence of corrosion and oxide build-up clean 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...

Cabling to the MPB

Refer to Figure 2-4 (MPB Port Assignments) and then connect all desktop devices to the MPB instead of directly to the notebook as described in Paragraphs 2.4.2 through 2.4.5. Figure 2-5 MPB Battery Pack Removal Installation Installation Figure 2-5 MPB Battery Pack Removal Installation Installation

Display 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 - Alternates between display modes (LCD, External CRT or both) Fn-F11 - Turns off the LCD backlight pressing any...

Handling the Computer

The notebook computer requires reasonable care and handling for extended life. Some of the precautions to follow to protect your computer against accidental damage include Never pick up or carry the unit by the cover Do not force the cover beyond its fully opened position (about 180 degrees) Never subject the computer to harsh environments (dusty areas or areas of rapidly changing temperatures) Never place anything on top of the computer, particularly when it is operating or charging (could...

Required Tools and Equipment

All Extensa Notebook corrective maintenance procedures can be performed using the following tools Small flat-blade screwdriver Small Phillips screwdriver Caution All boards, options and peripherals contain components that are sensitive to static electricity. When handling any of these items, protect against static electricity by using wrist grounding straps and grounded working mats. When moving or storing items, use the anti-static bags supplied with the items.

Keyboard Hot Key Sequences

Table 3-2 contains a summary of keyboard hot key sequences useful when performing maintenance operations. Table 3-2 Summary of Notebook Hot Key Sequences Table 3-2 Summary of Notebook Hot Key Sequences Table 3-2 Summary of Notebook Hot Key Sequences Table 3-2 Summary of Notebook Hot Key Sequences Alternate between display modes (LCD, Ext.l CRT or both) Send the contents of the screen to the printer Sets the notebook to echo keystrokes to the printer prints a line when you press Enter continues...

LED Icons

Table 3-1 contains a listing and description of Extensa LED Icons Lights when the computer writes to or reads from the floppy disk drive, or reads from the CD-ROM drive. Lights when a powered AC adapter connected to the computer is charging the battery. Flashes when there is a problem with the battery or the battery is not recognized by the smart charger. Turns off when there is no battery or the battery is fully charged. Lights when the computer is in Standby mode. Flashes when the computer is...

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. The hard disk drive also features built-in power conservation features configured from the standard CMOS Setup Routine. An Automatic Power Down mode can be selected which powers down the drive motor during periods of inactivity. An additional level of power...

Floppy Disk Drive Subsystem

The Extensa 900 is equipped with a 3.5-inch floppy disk drive that can read write standard 3.5-inch disks (either1.44 MB or 2 MB capacity). The drive can also read a 720 KB disk (for interchange of data with other computers). The data transfer rate for the floppy disk drive is 500 Kbits per second for high-density disks and 250 Kbits per second for double-density disks. The floppy drive controller is implemented on the PC87338 Super I O Controller chip described in the previous paragraphs.

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. 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. 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....

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). These modules are available in 8 MB, 16 MB, 32 MB, and 64 MB sizes and install in the expansion memory slot on the System Board accessed through the Memory Expansion Door on the bottom of the notebook. The installation process consists of the following steps Caution The EDO soDIMM module option contains components that are sensitive to static electricity. When handling the...

How Remove Hdd From Acer Extensa 5235

4.2.11.1 ALI M6377 Power Management Unit The major features of the ALI M6377 Power Management Unit include 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. Provide system activity monitoring, including Two programmable I O groups activity monitor, each group contains 16 8 I O addresses. One predefined I O group activity monitor Multiple external wake up events from DOZE...

Run Time Error Messages

In the event of a hardware software error that occurs after completion of POST, the error messages listed and described in Table 5-4 may occur. 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 Check the memory on the system board. Unexpected HW interrupt, interrupt at address. Type...

Docking the Notebook to the MPB

To dock the Notebook Computer into the MPB, use the following procedure 1. Turn the notebook over and open the expansion door slide the door toward the center of the notebook to expose the docking connector. 2. Slide the lever release latch to the front of the MPB to release the docking lever refer to Figure 2-3 . 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...

Series Connectivity Features

Acer Travelmate 5730 Monitor Port

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. The 900 Series also includes a fast infrared FIR port and an expansion bus connector for attaching to the optional Mobile Productivity Base. The external ports for the 900 Series are shown in Figure 1-4 and described in Table 1-2. Figure 1-4 900 Series External Ports Figure 1-4 900 Series External Ports 15-pin Female connector used...

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. Notebook with Keyboard and Battery Removed Notebook with Keyboard and Battery Removed Figure 6-3 Notebook Base Assembly Major FRUs Figure 6-3 Notebook Base Assembly Major FRUs PWB ASSY, MAIN BOARD W O CPU, EXT. 90X SPRING, EXT SWP, EXT 900' SPG EXT SWP 0.2 2.0...

General Fault Isolation Procedures

If troubleshooting a sytem containing a docked MPB, try undocking the Notebbok and tracing the malfunction to either the notebook or the MPB. Table 5-5 contains a summary of general problems that may occur during operation of the notebook and the appropriate corrective actions that should be taken for each. For other symptoms, go on to Paragraph 5.5 and troubleshoot the notebook using PC Doctor Diagnostics. 1. Check that the AC adapter is plugged into the power connector of the system. Also,...

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. Remove the Display Assembly as described in Paragraph 6.5.7. 5....

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. Slide the Lever Release Latch forward to release the Docking Lever extend...

Installing the AC Power Adapter

Oplader Acer 7715z

Use the following procedures to connect the AC adapter to the system Caution Use only the AC adapter supplied with the computer other adapters can damage the unit. 1. Remove the AC adapter from the packaging. Connect the round coaxial connector supplied with the notebook to the 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 2-11 Installing...

Thermal Sensor

Figure B-1 MPB CPU Board Logic Diagrams Sheet 3 of 3 Figure B-2 MPB Battery Board Logic Diagrams Sheet 1 of 1 PAGE PAGE PAGE PAGE PAGE PAGE PAGE PAGE CD_FDD.SCH IAUDIO.SCH IDOCKPORT.SCH POWER.SCH CHA RGER.SCH FEATURE.SCH PS2_CONN.SCH ITP.SCH UMA IDE l F PC 106430 CD ,HDD 8 FDD l F 8 QW AUDIO AMP. 8 DCJN BD. CONN. CRT .PRINTER ,RS-232 CONN. DC DC ,FDD IDE'S PWOER MOSFET 8 1493'S POWER MOSFET CHRGER .E2PROM 8 BATTRY CONN. PS2'S MOUSE , PS2'S KEYBOARD 8 USB CONN. Figure B-3 MPB Main Board...

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. The Extensa series uses two types of connectors including Locking-type connectors - Use a plastic stick to unlock and lock these type of connectors as shown in Figure 6-5. Figure 6-5 Removing Installing Cables with Locking-Type Connectors

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. This detour lets video and audio data bypass the PCI bus, reducing bandwidth impositions and improving system performance for...

Removing Replacing Mpb Frus 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. Unlatch the module by pressing the latch at the base of the MPB toward the unlock icon rear of MPB refer to Figure 6-25 . 3. Simultaneously, grasp the recessed...

Cleaning the Computer

When it is necessary to clean the plastic case and keyboard use a soft, lint-free cloth, slightly dampened with a mild detergent solution or use the contents of any commercially available computer cleaning kit. Caution Never 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...

ALI M 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. It directly connects to 3 V CPU bus, 3V or 5V tag, 3V or 5V...

Fault Isolation Using Power On Self Test

When the computer is first powered up, it automatically performs a Power On Self Test POST that checks the notebook's central hardware and memory functions. During POST which lasts for a few seconds , the display shows copyright and version number information. Note Some procedures in this paragraph require you to use keystroke sequences, such as Ctrl-Alt-Del. To execute a keystroke sequence such as this, you must press all three keys simultaneously. Upon successful completion of Power On Self...

Notebook Schematic Diagrams

Aspire5520 Circuit Schematic Download

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. SB ADD CPU VOLTAGE CONTROL 3 lt VCPU1 CPU BOARD CONN. M1521 - 1 M1521 - a M1523 CACHE RAM amp TAG RAM EDO DRAM 1 M DIMul SOCKET CLOCK GEN. STOPPING CPJ CLOCK LOGIC VGA BOARD CO NN. CRT CONN. PCMCIA CONTROLLER PC11130 PCMCIA BOARDTO BOARD CO NN. RTC amp EEPROM KEYBOARD CONTROLLER amp KEYBOARD l F DOCKING CONN. amp SW....

Using the Fast Infrared FIR Port

The FIR port, located on the rear of the computer, offers wireless communication with other Texas Instruments notebook computers or a variety of IRDA -compliant devices. Without a physical connection, you can print remotely, transfer files between computers, use a remote mouse during a presentation or receive information from a PDA or pocket organizer. To transfer a file follow these steps Align the FIR ports of the two devices making sure that the distance separating them is between six inches...

Installing Pcmcia Options

Acer Remove Card From Card Slot

The Notebook has two connector slots for PCMCIA option cards. These two slots can be used to install one Type III or two Type I II credit card size PCMCIA option cards. You can install a PCMCIA PC card without turning the computer off. Use the following procedure to 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...

Removing Replacing the MPB Main Board Assembly

How Assembly Acer 4540

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. Remove the MPB Housing as described in Paragraph 6.6.3. 4....

Troubleshooting a Power Supply Problem

If the computer does not power up when the Power Switch is pressed, you most likely have a malfunction in the power subsystem loss of power at the AC outlet, faulty AC adapter, discharged Battery Packs, or faulty Power Supply on the Main Board . With a power problem, all LEDs are extinguished, the LCD screen is blank, the system does not respond when the suspend switch is pressed several times consecutively and no drive activity can be heard. The computer is unable to load software and displays...

PCDoctor In DOS Mode or DOS Window

Features of the diagnostic program are accessed through a series of pull-down menus and basic keyboard keys cursor keys to move highlighted pointer, Enter key to select a highlighted feature, Esc key to cancel a function and move back one level. PC-Doctor is typically user friendly but if you don t understand a feature, context-sensitive help information is available at any time by pressing the F1 function key pressing the F1 function key twice accesses the online Technical Reference Manual for...

Notebook Expansion Capabilities

In addition to the external ports, the Extensa 900 Series Notebooks are designed with a variety of expansion features that permit substantial functionality and performance upgrades over the life of the product. The expansion capabilities built into the notebook are summarized in Table 1-3 and described in greater detail in the following paragraphs. Table 1-3 Extensa 900 Expansion Features Summary Table 1-3 Extensa 900 Expansion Features Summary External 3.5-inch Diskette Drive Module Provides...

Mpb Dc In Bd Conn

Figure B-3 MPB Main Board Motherboard Logic Diagrams Sheet 4 of 10 Figure B-3 MPB Main Board Motherboard Logic Diagrams Sheet 5 of 10 - 7y_l RCI K lt 7V_nATA lt iNTr Figure B-3 MPB Main Board Motherboard Logic Diagrams Sheet 9 of 10 0 g S i 3 8 0 fe g 5 S cl 8 3 8 fe 8 g g i s p g 2 t P p P 1 p p P P P P P P P Figure B-3 MPB Main Board Motherboard Logic Diagrams Sheet 10 of 10 Figure B-4 MPB VGA Board Logic Diagrams Sheet 1 of 5 Figure B-4 MPB VGA Board Logic Diagrams Sheet 2 of 5 Figure B-4...