Troubleshooting a Power Supply Problem

If the computer does not power up when the Power Switch is set to the ON position, 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 Board). With a power problem, all LEDs are extinguished, the LCD screen is blank, the system does not respond when the standby switch is pressed several times consecutively and no drive activity can be heard. The computer is unable to load software and...

Removing Replacing the Pentium Chip

The illustration in Figure 6-6 shows the procedure for removing replacing the processor from to the processor socket on the Main Board. 1. Remove the Main Board assembly as described in Paragraph 6.5.13. 2. Insert a small flat-blade screwdriver into the rightmost opening as shown in Figure 6-6. 3. Gently pry to the left (with pin 1 alignment at the bottom right as shown in Figure 6-6). 4. Gently remove the chip from the socket. 5. To install a chip into a vacant CPU socket, insert a flat blade...

Fault Isolation Using Diagnostics

PC-Doctor, supplied with the Extensa Series Notebooks, is a powerful diagnostics tool that can help you scan an internal RAM system for viruses, determine the hardware configuration of a local or remote system, benchmark its performance, analyze the performance of all subsystems, and perform a suite of interactive and non-interactive tests on attached devices. The test results are stored in a log which can be printed out (by pressing F2) or saved in a disk file (by pressing F3). Features of the...

Removing Replacing the Notebook Battery Pack

The procedure for removing and replacing the battery pack is as follows 2. Locate the battery door (right side of notebook near the front). Lightly press inward on the battery door and slide the door toward the front of the notebook remove the battery door. 3. Grasp the ribbon loop on the battery and pull the battery out of the compartment. 4. When replacing the battery, insert the end opposite the ribbon loop with the battery notches pointing upward. Slide the battery into the compartment and...

Installing the AC Power Adapter

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 power receptacle on the 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

Video Subsystem

The video subsystem, implemented on the Main Board and on the LCD Display Unit, displays text, graphics and drives an external VGA port. The video subsystem is implemented with a Chips and Technology high performance flat panel RT VGA controller and supporting logic and video RAM (1 MB). The major features of the VGA controller include Highly integrated design (flat panel CRT VGA controller, RAMDAC, clock synthesizer) Multiple Bus Architecture Integrated Interface Local Bus (32-bit CPU Direct...

Installing the Battery Packs

The standard configuration of the Extensa Notebook is equipped with a single battery pack that is inserted from the front right side of the computer. To remove or replace the battery pack, follow the steps below. 1. Power off the notebook, being sure to save your data first. 2. Locate the battery door right side of notebook near the front . Press the battery door inward and slide the door toward the front of the notebook remove the battery door. 3. Insert a new or recharged battery pack into...

Removing Replacing the Main Board

Extensa 5220 Dip Switch

To remove and replace the Main Board Assembly, perform the following procedure 1. Remove the AC Adapter, Battery Pack and any installed PCMCIA options from the notebook. 2. Remove the keyboard assembly as described in Paragraph 6.5.2. 3. Remove the Heat Sink as described in Paragraph 6.5.3. 4. Remove the Charger Power Supply Board as described in Paragraph 6.5.12. 5. Disconnect all interboard cable connectors. 6. Using a small flat blade screwdriver and apply light pressure in a rocking motion...

External Ports

Extersa Ports

As shown in Figure 1-3, the notebook computer contains the following external ports 9-Pin Serial Port for attaching any RS-232 type serial device to the Notebook 25-Pin Parallel Port for attaching bidirectional parallel devices Audio Line-In, Line-Out, and Microphone-In 15-Pin External VGA Monitor Port for attaching an external monitor 6-Pin PS 2 Port to attach an external Keyboard or Mouse AC Adapter Connector for attaching the AC Adapter to the notebook

Display Assembly

As shown in Figure 6-1, the Display Assembly contains the LCD screen, Power Inverter Board and Contrast Board. The Field-Replaceable Units FRUs and their respective TI Part No.'s and assembly disassembly reference paragraph numbers are provided in Table 6-1. Figure 6-1 Cover-Display Assembly FRUs Figure 6-1 Cover-Display Assembly FRUs Table 6-1 Cover-Display Assembly, Field-Replaceable Units FRUs Display Assembly, 10.4 DSSTN 50X, 51X Bezel Assembly, DSSTN 10.4, W O label LCD Panel, DSSTN, 10.4,...

Notebook Controls and Indicators

Loptop Indicators

The Extensa Series Notebooks are equipped with the following controls and indicators Group of five LEDs just above the keyboard Sleep Mode, Hard Drive Activity, Num Lock, Caps Lock and Scroll Lock Power, Setup, and Standby Suspend buttons adjacent to the status LEDs Power LED and Charge LED indicators on the left rear corner of the notebook Touchpad and two select buttons at base of keyboard Combination key sequences on keyboard to control brightness, contrast and volume refer to Paragraph...

Installing Pcmcia Options

Extensa 510 Type Battery

The Notebook has provisions for two Type I Type II or one Type III PCMCIA option card. Use the following procedure to install a PCMCIA option 1. Review the installation instructions supplied with the PCMCIA option card s . 2. Open the PCMCIA compartment cover on the left side of the notebook. 3. To insert a PCMCIA card, align the card with the socket and slide the card into the socket until it locks into place. 4. To eject a PCMCIA card, first ensure that the notebook is not accessing the...

Responding to Low Battery Conditions

The computer generally will notify you when you are reaching a low battery Four short beeps per minute unless battery warning is disabled The battery low warning is automatically disabled when the AC Adapter is installed on the notebook, regardless of the charge condition of the battery pack. If the AC adapter is not plugged in within three minutes of a detected battery low condition, the notebook enters Suspend mode if low battery suspend is specified in setup . When the notebook enters...

Removing and Replacing the Inverter Board or Contrast Board

To remove and replace either the Inverter Board or the Contrast Board, 1. Use a narrow piece of plastic or pointed tweezers to apply light pressure to one edge of the lower screw covers. The lower screw covers will bow outward and can be removed. 2. Remove the rubber upper screw covers using a pair of tweezers. 3. Remove the six screws that secure the bezel to the display assembly a small Phillips-head screwdriver is recommended for removing the two screws at the top of the bezel . 4. Pull on...

Installing External VGA Monitor

External Display Vga Port Acer Laptop

The notebook is capable of driving both its internal LCD display and an external VGA monitor LCD only, simultaneous, or VGA only . The external monitor connector pinouts and connector locations are shown in Figure 2-8. To install an external monitor with the notebook, use the following steps 1. Ensure that both the notebook and the external monitor are turned off. 2. Locate the 15-pin female VGA port on the rear of the notebook. 3. Attach the appropriate end of the monitor cable to the VGA port...

Introduction

This appendix contains reference data useful in diagnosing and correcting self test errors. Cycle power to Notebook if problem persists, remove and replace Main Board. Diskette Drive Controller Error or No Controller Present Cycle power to Notebook if problem persists Insert Diskette and retry if problem persists, try another diskette Press Ctrl-Alt-Esc to reconfigure the system. Press Ctrl-Alt-Esc to reconfigure the system. Cycle power to Notebook if problem persists, replace Hard Drive Cycle...

Removing Replacing the Keyboard Assembly

The procedure for removing and replacing the keyboard assembly is as follows 1. Turn off the computer and disconnect the AC power adapter if it is attached . 2. Remove the Battery Pack as described in Paragraph 6.5.1. Note The top edge of the keyboard is held in place by plastic tabs beneath the Ctrl and Down Arrow Keys. 3. Pull the keyboard release tabs toward the front of the notebook tabs snap into an 1 8 inch recess in the plastics . 4. Using a small straight-blade screwdriver, lift the...

System Base Assembly

As shown in Figure 6-2, the System Base Assembly houses a variety of field-replaceable subassemblies and components. The FRUs and paragraph references for removal replacement procedures are listed in Table 6-2. Table 6-3 contains a listing of Customer non-technical user replaceable units CRUs and associated TI Part Numbers. Table 6-2 Base Assembly, Field-Replaceable Units FRUs Table 6-2 Base Assembly, Field-Replaceable Units FRUs Main Board without CPU transfer CPU to replacement board Smart...