User manual HP 190

Notice The information in this guide is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN; NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL. This guide contains information protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation. © 2002 Compaq Computer Corporation. All rights reserved. Printed in U.S.A. COMPAQ, ARMADA, LTE, and PROSIGNIA are registered in the U.S. Patent and Trademark Office. Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. The software described in this guide is furnished under a license agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement. Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies. Maintenance and Service Guide Prosignia Notebook Family of Personal Computers First Edition October, 1998 Documentation Part Number 382712-001 Spare Part Number 382793-001 Compaq Computer Corporation CONTENTS preface USING THIS GUIDE Symbols................................................................................................................................................vii Technician Notes................................................................................................................................ viii Serial Number .................................................................................................................................... viii Laser Safety ................................................................................................................................... viii CDRH Regulations ........................................................................................................................ viii Battery Notice ...................................................................................................................................ix Serial Number ....................................................................................................................................x Locating Additional Information ...........................................................................................................x chapter 1 PRODUCT DESCRIPTION 1.1 Computer Features and Models .................................................................................................. 1-1 1.1.1 Features ................................................................................................................................. 1-2 1.1.2 Models................................................................................................................................... 1-2 1.1.3 Software Fulfillment ............................................................................................................. 1-3 1.2 Computer Options ....................................................................................................................... 1-3 1.2.1 Convenience Base II ............................................................................................................. 1-3 1.2.2 System Memory Options ...................................................................................................... 1-3 1.2.3 External Battery Charger ...................................................................................................... 1-4 1.2.4 External Keyboards and Pointing Devices ........................................................................... 1-4 1.2.5 External Monitors ................................................................................................................. 1-4 1.3 External Computer Components................................................................................................. 1-4 1.3.1 Left Side Components........................................................................................................... 1-5 1.3.2 Front Components................................................................................................................. 1-6 1.3.3 Top Components ................................................................................................................... 1-7 1.3.4 Right Side Components ........................................................................................................ 1-8 1.3.5 Rear Components.................................................................................................................. 1-9 1.3.6 Bottom Components ........................................................................................................... 1-10 1.3.7 Status Panel Lights.............................................................................................................. 1-11 1.4 Design Overview....................................................................................................................... 1-12 1.4.1 System Unit......................................................................................................................... 1-12 1.4.2 Internal Boards.................................................................................................................... 1-12 1.4.3 Video system....................................................................................................................... 1-13 Contents iii chapter 2 TROUBLESHOOTING 2.1 Preliminary Steps .........................................................................................................................2-2 2.2 Clearing Passwords ......................................................................................................................2-3 2.3 Power-On Self-Test (POST) ........................................................................................................2-3 2.4 POST Error Messages..................................................................................................................2-4 2.5 Compaq Utilities ..........................................................................................................................2-7 2.5.1 Computer Setup .....................................................................................................................2-7 2.5.2 Computer Checkup (TEST) ...................................................................................................2-9 2.5.3 Running View System Information (INSPECT) .................................................................2-14 2.5.4 Running Compaq Diagnostics .............................................................................................2-15 2.5.5 Boot Sequencing ..................................................................................................................2-15 2.5.6 Factory Default Settings ......................................................................................................2-16 2.6 Troubleshooting Without Diagnostics .......................................................................................2-17 2.6.1 Before Replacing Parts ........................................................................................................2-17 2.6.2 Checklist for Solving Problems ...........................................................................................2-17 chapter 3 ILLUSTRATED PARTS CATALOG 3.1 3.2 3.3 3.4 3.5 3.6 3.7 System Unit..................................................................................................................................3-2 Mass Storage Devices ..................................................................................................................3-4 Cables and Power Cords ..............................................................................................................3-6 Standard and Optional Boards .....................................................................................................3-7 Options .........................................................................................................................................3-9 Miscellaneous Parts ...................................................................................................................3-10 Documentation...........................................................................................................................3-11 chapter 4 REMOVAL AND REPLACEMENT PRELIMINARIES 4.1 Tools Required.............................................................................................................................4-1 4.2 Service Considerations.................................................................................................................4-1 4.2.1 Plastic Parts............................................................................................................................4-1 4.2.2 Cables and Connectors...........................................................................................................4-2 4.3 Preventing Damage to Removable Drives...................................................................................4-2 4.4 Preventing Electrostatic Damage.................................................................................................4-3 4.4.1 Packaging and Transporting Precautions...............................................................................4-3 4.4.2 Workstation Precautions........................................................................................................4-4 4.4.3 Grounding Equipment and Methods......................................................................................4-4 4.4.4 Electrostatic Voltage Levels and Protective Materials..........................................................4-5 iv Contents chapter 5 REMOVAL AND REPLACEMENT PROCEDURES 5.1 Serial Number .............................................................................................................................. 5-1 5.2 Disassembly Sequence................................................................................................................. 5-2 5.3 Preparing the Computer for Disassembly .................................................................................... 5-3 5.3.1 Disconnecting the AC Power................................................................................................ 5-3 5.3.2 Battery Pack Removal........................................................................................................... 5-4 5.3.3 MultiBay Devices ................................................................................................................. 5-5 5.3.4 PCMCIA ............................................................................................................................... 5-6 5.4 Computer Tilt Feet ....................................................................................................................... 5-7 5.5 Internal Modem............................................................................................................................ 5-8 5.5.1 IR (Infrared) Module .......................................................................................................... 5-10 5.6 Hard Drive.................................................................................................................................. 5-11 5.7 Keyboard .................................................................................................................................... 5-14 5.7.1 Keyboard Removal ............................................................................................................. 5-16 5.7.2 Memory Board .................................................................................................................... 5-17 5.7.3 Lithium Real Time Clock Battery ...................................................................................... 5-20 5.7.4 Optical Disc Bay ................................................................................................................. 5-22 5.8 Display Assembly ...................................................................................................................... 5-23 5.8.1 Hinge Covers ...................................................................................................................... 5-23 5.8.2 Display Assembly ............................................................................................................... 5-25 5.9 Top Cover Assembly.................................................................................................................. 5-27 5.9.1 DC-DC Converter and Audio Board Shield ....................................................................... 5-31 5.9.2 DC-DC Converter ............................................................................................................... 5-32 5.9.3 Audio Board........................................................................................................................ 5-33 5.9.4 Fan....................................................................................................................................... 5-34 5.9.5 System Board ...................................................................................................................... 5-35 5.9.6 Integrated AC Adapter........................................................................................................ 5-38 chapter 6 SPECIFICATIONS 6.1 Computer...................................................................................................................................... 6-2 6.2 Display ......................................................................................................................................... 6-3 6.3 Hard Drive.................................................................................................................................... 6-4 6.4 Diskette Drive .............................................................................................................................. 6-5 6.5 LS-120 Drive................................................................................................................................ 6-6 6.6 ZIP Drive...................................................................................................................................... 6-7 6.7 CD-ROM Drive............................................................................................................................ 6-8 6.8 DVD-ROM Drive......................................................................................................................... 6-9 6.9 Battery Packs.............................................................................................................................. 6-10 6.10 Convenience Base II ................................................................................................................ 6-11 6.11 External Power Supplies .......................................................................................................... 6-12 6.12 System Interrupts ..................................................................................................................... 6-14 6.13 System DMA............................................................................................................................ 6-14 6.14 System I/O Address ................................................................................................................. 6-15 6.15 System Memory Map............................................................................................................... 6-17 Contents v Appendix A CONNECTORS.........................................................................................................................................A-1 Appendix B POWER CORD SET REQUIREMENTS B.1 3-Conductor Power Cord Set ......................................................................................................B-1 B.1.1 General Requirements..........................................................................................................B-1 B.1.2 Country-Specific Requirements...........................................................................................B-2 B.1.3 Notes: ...................................................................................................................................B-2 Appendix C CONVENIENCE BASE C.1 Models and Features....................................................................................................................C-1 C.2 Convenience Base Features.........................................................................................................C-3 C.3 Convenience Base II Components ..............................................................................................C-4 C.3.1 Front and Right Side Components .......................................................................................C-4 C.3.2 Rear Components .................................................................................................................C-5 INDEX ........................................................................................................................................................ I-1 vi Contents preface USING THIS GUIDE This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Prosignia Notebook Family of Personal Computers. Compaq Computer Corporation reserves the right to make changes to this product without notice. Additional information is available on the Compaq Prosignia Notebook Family of Personal Computers Illustrated Parts Map. Symbols The following words and symbols mark special messages throughout this guide: ! WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions in the caution could result in damage to equipment or loss of information. IMPORTANT: Text set off in this manner presents clarifying information or specific instructions. NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information. Using This Guide vii Technician Notes ! ! WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modifications may void any warranty or exchange allowances. WARNING: The computer is designed to be electrically grounded. To ensure proper operation, plug the AC power cord into a properly grounded electrical outlet only. CAUTION: To properly ventilate your system, you must provide at least 3 inches (7.62 cm) of clearance on the left and right sides of the computer. Serial Number When requesting information or ordering spare parts, provide the computer serial number. The serial number is on the back of the computer. Laser Safety All Compaq systems equipped with CD-ROM drives comply with appropriate safety standards, including IEC 825. With specific regard to the laser, the equipment complies with laser product performance standards set by government agencies as a Class 1 laser product. It does not emit hazardous light; the beam is totally enclosed during all modes of customer operation and maintenance. CDRH Regulations The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products on August 2, 1976. These regulations apply to laser products manufactured from August 1, 1976. Compliance is mandatory for products marketed in the United States. WARNING: Use of controls or adjustments or performance of procedures other than those specified herein or in the CD ROM installation guide may result in hazardous radiation exposure. ! viii Using This Guide This system is classified as a CLASS 1 LASER PRODUCT. This label is located on the outside of the system being serviced. A similar label also appears on the internal CDROM installed in the system. LASER INFO Laser Type: Wave Length: Divergence Angle: Output Power: Polarization: Numerical Aperture: Semiconductor GaAIAs 780 +/- 35 nm 53.5 Degree +/- 1.5 Degree Less than 0.2mW or 10,869 W·m-2sr-1 Circular 0.45 +/- 0.04 Only an authorized technician, service provider, dealer, or reseller should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard as well as void the warranty. Battery Notice ! ! WARNING: This computer contains an internal lithium battery-powered real-time clock circuit. There is a risk of explosion and injury if the battery is incorrectly replaced or improperly handled. Do not attempt to recharge, disassemble, immerse in water, or dispose of the battery in fire. Replacement should be done using the Compaq spare part for this computer. WARNING: The computer also contains a lithium-ion battery pack. There is a risk of fire and chemical burn if the battery pack is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose of in fire or water, or expose this battery to temperatures higher than 60 degrees C. In North America, dispose of nickel metal hydride or lithium-ion batteries by taking advantage of the Compaq battery recycling program. You will be provided with a postage-paid battery pack mailer preaddressed to a reclamation facility where the metals are recycled. In Europe, do not dispose of batteries and accumulators with general household waste. Dispose of or recycle them by using the public collection system or returning them to Compaq. Using This Guide ix Serial Number The serial number is located on the back of the computer directly below the parallel connector. Locating Additional Information The following documentation is available to support the computer: s s s s s s s s Compaq Prosignia Notebook Family of Personal Computers documentation set Microsoft operating system guide Compaq service advisories and bulletins Compaq QuickFind Compaq Service Quick Reference Guide Technical Reference Guide Illustrated Parts Map Compaq Internet site at http://www.Compaq.com x Using This Guide chapter 1 PRODUCT DESCRIPTION 1.1 Computer Features and Models The Prosignia Notebook Family of Personal Computers is a line of multimedia notebook computers with advanced modularity, processors, and video graphics. This full-function, Mobile Pentium II-based family of notebook computers allows full desktop functionality and connectivity through the use of an optional Convenience Base. Figure 1-1. Prosignia Notebook Personal Computer Product Description 1-1 1.1.1 Features The computer models have the following standard features: s s s s s s s s s s s s s s s s s s s 233-MHz, 266-MHz, or 300-MHz Mobile Pentium II processors 32-MB or 64-MB of synchronous dynamic random access memory (SDRAM), expandable to 160 MB (depending on the model) 3.2-, 4.0-, or 6.0-GB, 2.5-inch internal hard drive mounted in carrier LCD displays: t 12.1 inch SVGA CTFT display t 13.3-inch XGA CTFT display t 14.1-inch XGA CTFT display Supports Lithium Ion (Li-ion) battery packs Internal stereo speakers Internal microphone 1.44-MB diskette drive, DVD, LS-120, Iomega Zip or second battery or Hard Disk Drive in the Multi-bay adapter DVD drive or 24X CD-ROM in the Optical Disk Bay Full-size 101 key compatible keyboard including 12 function keys, 8 cursor control keys, inverted-T cursor control keys, and embedded numeric keypad Four user-programmable keys Touchpad pointing device Operates from a battery pack in the battery bay, plus an optional battery pack in the MultiBay, or integrated AC power supply that is compatible with domestic or international power sources Power management and security features Infrared interface for wireless communication with other IrDA-compliant devices at 1 data rates up to 4 mb/sec (available on selected models) Two standard device slots that will accommodate two Type II or one Type III PC Card, PCMCIA card or CardBus card. Zoomed-Video is supported in the bottom slot. 176-pin expansion connector provides the interface to the convenience base options Rear-panel ports provide connections for parallel, serial, external monitor, and keyboard/mouse Universal Serial Bus (USB) 1.1.2 Models Compaq Prosignia Notebook computers are configurable, and may contain any or all of the features listed. All models have 32-MB or 64-MB of standard memory with one 32-MB memory module in the memory expansion port, and may be upgraded to 160MB. 1 Windows 95 supports up to 115-kb/sec. Driver for 4 mb/sec available from www.microsoft.com. 1-2 Product Description 1.1.3 Software Fulfillment Replacement software may be ordered directly from Compaq Computer Corporation. Both the model and the serial number of the computer are needed to identify the specific software available. 1.2 Computer Options The computer supports the following options: s s s s s s s s s s s s s s s Convenience Base II pass through model with monitor stand Convenience Base II with Ethernet with monitor stand Compatible with Convenience Base models from the Armada 1500 Family of Personal Computers Memory expansion boards Li-ion battery pack Automobile/Aircraft Adapter External Battery Charger PCMCIA modem Hard drive upgrade Hard drive adapter for MultiBay with carrying case Internal modem CD-ROM drive for Optical Disc Bay DVD-ROM for Optical Disc Bay 120-MB LS-120 diskette drive for MultiBay 100-MB Zip drive for MultiBay 1.2.1 Convenience Base II Prosignia Notebook models support the following convenience base models: Convenience Base II pass through s Convenience Base II with Ethernet s 1.2.2 System Memory Options The computer supports optional 32-, 64-, and 128-MB memory boards. The memory boards are 66-MHz SDRAM without parity. System memory can be expanded to 160-MB, depending on the model. Product Description 1-3 1.2.3 External Battery Charger The external battery charger has the following features: Two battery charge slots s Accepts Li-ion modular batteries s Charges 1 battery in 1.5 hours s Charges 2 batteries in 3 hours s Note: The battery calibration process should be used to discharge the batteries. 1.2.4 External Keyboards and Pointing Devices Supports Compaq or Compaq compatible PS2 keyboards and pointing devices. 1.2.5 External Monitors Supports all VGA Monitors at resolutions up to 1280 × 1024 s Supports DDC1 and DDC2b compliant Energy Star monitors s 1.3 External Computer Components The external computer components are illustrated and described in this section. 1-4 Product Description 1.3.1 Left Side Components The left side external components are shown in Figure 1-2 and are described in Table 11. Figure 1-2. Left Side Components Table 1-1 Computer Components Left Side Item 1 2 3 4 5 6 Component Cable Lock Speaker/headphone jack Microphone jack Volume up Volume down Left bass reflex speaker port Function Secures computer to fixed object Connects stereo speakers, headphone or headset Connects external microphone, disables internal microphone Increases volume Decreases volume Enhances audio quality Product Description 1-5 1.3.2 Front Components The front external components are shown in Figure 1-3 and are described in Table 1-2. Figure 1-3. Front Components Table 1-2 Computer Components Front Item 1 2 3 4 5 6 7 8 Component Display Lid switch Speakers MultiBay Optical disc bay Battery bay Keyboard Microphone Function LCD graphic display Blanks display when display is closed Produce high quality stereo sound Accepts diskette drive, LS-120 drive, ZIP drive, second battery pack or second hard drive Accepts CD-ROM or DVD-ROM drives Accepts Li-Ion battery pack Accepts operator input Monophonic microphone 1-6 Product Description 1.3.3 Top Components The top external components are shown in Figure 1-4 and are described in Table 1-3. Figure 1-4. Top Components Table 1-3 Computer Components Top Item 1 2 3 4 5 6 Component Lid switch Programmable function buttons Suspend button Power switch Keyboard release latches Touchpad Function Blanks display when display is closed User programmable keys Initiates suspend Turns power on and off Releases keyboard from system unit Pointing device Product Description 1-7 1.3.4 Right Side Components The right side external components are shown in Figure 1-5 and are described in Table 1-4. Figure 1-5. Right Side Components Table 1-4 Computer Components Right Side Item 1 2 3 4 5 Component Right bass reflex speaker port PC Card eject button PC Card slots USB Connector Modem jack Function Enhances audio quality Eject PC Cards from the slots Accepts 16- and 32-bit PC Cards Connects USB devices to the computer Connects the phone line to the computer (selected models) 1-8 Product Description 1.3.5 Rear Components The rear components are shown Figure 1-6 and are described in Table 1-5. Figure 1-6. Rear Components Table 1-5 Computer Components Rear Item 1 2 3 4 5 6 7 8 Component Parallel connector Serial connector Infrared port External monitor connector AC Power connector Docking connector Fan (Airflow vents) External keyboard connector Function Connects parallel devices such as a printer Connects serial devices such as a mouse Provides wireless communications (on selected models) Connects external monitor Connects external AC power Provides connection to optional convenience base Provides thermal ventilation to internal components Connects external keyboard or PS-2 mouse (Supports standard Y connector) Product Description 1-9 1.3.6 Bottom Components The bottom external components are shown in Figure 1-7 and are described in Table 1-6. Figure 1-7. Bottom Components Table 1-6 Computer Components Bottom Item 1 2 3 4 5 6 * Component Modem compartment Docking latch receptacles Docking alignment guide Tilt feet MultiBay screw Hard drive cover Hard drive security screw Function Integrated modem (selected models) Locks computer to optional convenience base Aligns computer to optional convenience base Adjusts computer to an angle Secures MultiBay Devices Covers hard drive compartment Secures hard drive cover (not shown) 1-10 Product Description 1.3.7 Status Panel Lights The status panel lights are shown in Figure 1-8 and described in Table 1-7. Figure 1-8. Status Panel Lights Table 1-7 Computer Components Status Panel Item 1 2 3 4 5 Component Hard drive activity light MultiBay activity light Number lock indicator Caps lock indicator Scroll lock indicator Function Indicates hard drive or CD-ROM access Indicates Multi-Bay device activity Indicates that numbers lock is on Indicates that caps lock is on Indicates that scroll lock is on Product Description 1-11 1.4 Design Overview This section presents a design overview of the computer. The overview is limited to field replaceable parts. All replacement parts are listed in Chapter 3. 1.4.1 System Unit The computer is a traditional clamshell design with a display assembly attached to a system unit. The computer opens to reveal a backlit LCD display and a full-function keyboard. The display is designed for a continuously adjustable tilt angle. 1.4.2 Internal Boards The system electronics are integrated on four printed circuit assemblies: the audio/led board, system board, modem board, and the DC-DC converter board. The audio/led board provides support for the audio functions. s The system board integrates the processor, on-board memory, level 2 cache, local bus video adapter, and PCMCIA/CardBus adapter. s The optional modem board supports data or fax functions. s The DC-DC converter board creates the system voltages (3.3 VDC and 5 VDC) from the battery or AC/DC input. s Processor An Intel Mobile Pentium II processor is located on the system board for the 233 MHz, 266 MHz, or 300 MHz models. Memory Base memory is 32-MB with 32-, 64-, or 128-MB of optional expansion memory. Base memory is onboard memory built into the system board. Expansion memory consists of one memory expansion board available as a user installable option. Some models come standard with 64-MB of total memory. This consists of 32-MB of standard memory and 32-MB of additional memory in the memory expansion unit. Cache Level 2 cache is integrated in the CPU module. It is not user upgradable. 1-12 Product Description PCMCIA/CardBus and Video Adapter Controller The PCMCIA/CardBus adapter is based on the Texas Instrument PCI1220 PC to CardBus controller unit. The local bus video adapter is the Chips and Technologies 65555 controller. The serial-parallel port board expands the serial and parallel signals from the system board to the serial and parallel expansion connectors. s The audio/led board supports the microphone and headphone jacks, the volume control switches, and the amplifier and equalization circuitry. s 1.4.3 Video system The standard video subsystem consists of: s s s s s s s s An internal LCD Display 12.1 inch SVGA CTFT display 13.3 inch XGA CTFT display 14.1 inch XGA CTFT display 2 Megabyte frame buffer An inverter to supply AC power to the LCD back-light system A standard external VGA connector for use with CRTs and other VGA compatible displays 40 KByte Video ROM Product Description 1-13 chapter 2 TROUBLESHOOTING Follow these basic steps when beginning the troubleshooting process: 1. 2. 3. 4. 5. Complete the preliminary steps listed in Section 2.1. Run the Power-On Self-Test (POST) as described in Section 2.3. Run Computer Setup as described in Section 2.5. Run the Computer Checkup (TEST) as described in Section 2.6. If you are unable to run POST or Computer Checkup or if the problem persists after running POST and Computer Checkup, perform the recommended actions described in the diagnostic tables in Section 2.5. Complete the recommended actions in the order in which they are given. Repeat POST and Computer Checkup after each recommended action until the problem is resolved and the error message does not return. When the problem is resolved, stop performing the troubleshooting steps and do not complete the remaining recommended actions. Refer to Chapter 5 for removal and replacement procedures that are recommended. If the problem is intermittent, check the computer several times to verify that the problem is solved. Follow these guidelines when troubleshooting: s s s s s The following table describes the troubleshooting actions: Table 2-1 Trouble Shooting Actions If You Want To: Check for POST error messages Check that computer components are recognized and running properly View information about the computer and installed or connected devices Perform any of the following: s Check the system configuration s Set the system power management parameters s Return the system to its original configuration s Check system configuration of installed devices Then Run: POST Computer Checkup (TEST) under Compaq Utilities View System Information (INSPECT) under Compaq Utilities Computer Setup Troubleshooting 2-1 2.1 Preliminary Steps IMPORTANT: Use AC power when running POST, Computer Setup, or Computer Checkup. A low battery condition could initiate Hibernation and interrupt the test. Before running POST and Computer Checkup, complete the following steps: 1. Obtain established passwords. If you must clear the passwords, go to Section 2.2. 2. Ensure that the hard drive is installed in the computer. 3. Ensure that the battery pack is installed in the computer and the power cord is connected to the computer and plugged into an AC power source. 4. Turn on the computer. 5. If a power-on password has been established, type the password and press Enter. 6. Run Computer Setup (Section 2.5). If a Setup password has been established, type the password and press Enter. 7. Turn off the computer and all external devices. 8. Disconnect external devices that you do not want to test. If you want to use the printer to log error messages, leave it connected to the computer. NOTE: If a problem only occurs when an external device is connected to the computer, the problem could be with the external device or its cable. Isolate the problem by running POST with and without the external device connected. 9. Use Compaq Utilities and Loopback plugs in the serial and parallel connectors if you plan to test these ports. Follow these steps to run Compaq Utilities: a. If you are running Compaq Utilities from the hard drive, turn on or restart the computer. Press F10 when the cursor appears in the upper right corner of the screen. If you do not press F10 in time, restart the computer and try again. If you are running Compaq Utilities from diskette, insert the Compaq Utilities diskette in drive A. Turn on or restart the computer. b. Press Enter to accept OK. c. Select Computer Checkup (TEST). d. Select Prompted Diagnostics. e. After "Identifying System Hardware" completes, select Interactive Testing and follow the instructions on the screen. 2-2 Troubleshooting 2.2 Clearing Passwords The power-on password prevents use of the computer until the password is entered. The setup password prevents unauthorized changes to Computer Setup. To clear the passwords, you must remove all power from the system board. If you do not know the passwords, use the following procedure to clear the password: 1. 2. 3. 4. 5. 6. Remove all battery packs from the battery bay and MultiBay, if applicable. Disconnect the AC power. Remove the real-time clock battery. Wait five minutes. Reconnect the AC power. Restart the computer. During Power-On Self Test (POST), a "162 System Options not set" message appears. 7. Shut down the computer, then disconnect AC power again. 8. Replace the real-time clock battery. 9. Install the battery pack(s). Proceed with the troubleshooting procedures. 2.3 Power-On Self-Test (POST) The Power-On Self-Test (POST) is a series of tests that run every time the computer is turned on. POST verifies that the system is configured and functioning properly. To run POST, complete the following steps: 1. Complete the preliminary steps (Section 2.1). 2. Turn on the computer. If POST does not detect any errors, the computer beeps once or twice to indicate that POST has run successfully. The computer boots from the hard drive or from a bootable diskette if one is installed in the diskette drive. Troubleshooting 2-3 2.4 POST Error Messages If the system is not functioning well enough to run POST, or if the display is not functioning well enough to show POST error messages, refer to the Troubleshooting tables in Section 2.6. If POST detects an error, one of the following events occurs: A message with the prefix "WARNING" appears informing you where the error occurred. The system pauses until you press F1 to continue. s A message with the prefix "FATAL" appears informing you where the error occurred. After the message, the system emits a series of beeps and stops. s The system emits a series of beeps and stops. s Warning messages indicate that a potential problem, such as a system configuration error, exists. When F1 is pressed, the system should resume. You should be able to correct problems that produce WARNING messages. IMPORTANT: When a WARNING message includes the prompt to "RUN SCU," press F10 to run Computer Setup. (Computer Setup replaces the SCU utility.) 2-4 Troubleshooting If you receive one of the error messages listed in Table 2-2, follow the recommended action. Table 2-2 Warning Messages Message CMOS checksum invalid, run SCU CMOS failure, run SCU Diskette controller error Description CMOS RAM information has been corrupted. CMOS RAM has lost power. Recommended Action Run Computer Setup to reinitialize CMOS-RAM. Run Computer Setup to reinitialize CMOS-RAM. The diskette drive controller failed If there is no diskette drive in the to respond to the recalibrate system, run Computer Setup to command. properly configure the CMOS-RAM to show no diskette drive present. If the problem persists, or if a diskette drive is present, complete these steps until the problems is solved: 1. Check diskette drive connections. 2. Replace diskette drive. 3. Replace system board. Diskette track 0 failed The diskette drive cannot read track 0 of the diskette in the drive. The hard drive controller failed to respond to the reset command. The keyboard failed the self-test command. The keyboard failed to respond to the RESET ID command. Hard disk controller error Keyboard controller failure Keyboard failure Try another diskette. If the problem persists, you may need to replace the diskette drive. Check the drive parameters. Turn off the system and check all related connections. Replace the system board. Replace the keyboard. If the problem persists, replace the system board. Replace the system board. No interrupts from Timer 0 ROM at xxxx (LENGTH yyyy) with nonzero checksum (zz) Time/Date corrupt - run SCU The periodic timer interrupt is not occurring. An illegal adapter ROM was located Check the external adapter (such as at the specified address. a video card) to determine if it is causing the conflict. The time and date stored in the 1. Run Computer Setup. real time clock have been 2. If problem persists, replace corrupted, possibly by a power auxiliary battery. loss. 3. If problems persists, replace system board. A failure or an error occurred when 1. Run Scan disk. trying to access the hard drive. 2. Check disk in DOS and Windows 95. If problem persists, refer to Table 2-11. An EDO memory module was installed in the memory expansion slot. Remove the EDO memory module and replace with SDRAM memory module. Hard disk xx failure (or error) Unsupported memory module Troubleshooting 2-5 Fatal errors emit a beep and may display a FATAL message. Fatal errors indicate severe problems, such as a hardware failure. Fatal errors do not allow the system to resume. Some of the Fatal error beep codes are listed at the end of this section. Table 2-3 Fatal Error Messages Message CMOS RAM test failed DMA controller faulty Description A walking bit test of CMOS RAM location 0E (Hex) - 3F (Hex) failed. A sequential read/write of the transfer count and transfer address registers within the primary and secondary DMA controllers failed. A walking bit read/write of the 16 DMA controller page registers starting at location 80 Hex failed. A continuous read/write test of port 61h found that bit 4 (Refresh Detect) failed to toggle within an allotted amount of time. A sequential read/write of various Interrupt Controller registers failed. A checksum of the ROM BIOS does not match the byte value at F000:FFFF. RAM error occurred during memory test. Beep Code 3 4 Faulty DMA page registers 0 Faulty refresh circuits 1 Interrupt controller failed ROM checksum incorrect RAM error at location xxxx 5 2 None Table 2-4 Fatal Error Beep Codes Beep Code Beep Sequence 0 1 2 3 4 5 6 7 8 S-S-S-P-S-S-L-P S-S-S-P-S-L-S-P S-S-S-P-S-L-L-P S-S-S-P-L-S-S-P S-S-S-P-L-S-L-P S-S-S-P-L-L-S-P S-S-S-P-L-L-L-P S-S-L-P-S-S-S-P S-S-L-P-S-S-L-P Description The DMA page registers are faulty. The refresh circuitry is faulty. The ROM checksum is incorrect. The CMOS RAM test failed. The DMA controller is faulty. The interrupt controller failed. The keyboard controller failed. Graphics adapter is faulty. Internal RAM is faulty. Recommended Action Replace system board. Replace memory board or system board if memory on system board is faulty. S = Short, L = Long, P = Pause 2-6 Troubleshooting 2.5 Compaq Utilities Compaq Utilities contain several functions that s Determine if various computer devices are recognized by the system and are operating properly. s Provide information about the system once it is configured. Compaq Utilities include the following programs: s Computer Setup s Computer Checkup (TEST) s View System Information (INSPECT) To access Compaq Utilities: 1. Turn on or restart the computer by clicking Start Shut Down Restart the computer. 2. Press F10 when the blinking cursor appears in the upper-right corner of the display. 3. Select a menu option. 2.5.1 Computer Setup Computer Setup contains utilities that give you an overall picture of the computer hardware configuration and aid in troubleshooting. These utilities also allow you to set custom features such as security options, power conservation levels, and startup preferences. If you are running Windows 95, the computer automatically recognizes and configures the system for new devices. If you have a configuration problem or want to view or reset configuration settings, you can use Computer Setup. NOTE: If you are running Windows 95, you should use Computer Setup only to adjust system features such as the power-on password or battery conservation level. Windows 95 may override other configuration changes. If you are running Windows NT, the computer does not automatically recognize new devices added to the system. All devices ordered with your system have been configured for you. Use Computer Setup to view settings for a new device you have added or to reset configuration settings for preinstalled devices. Computer Setup provides two methods of viewing the computer configuration: by type (factory setting) or connection. Categories by type: s System Features--security, power, boot management s Communication--port, modem, and other communication devices s Storage--storage-related devices such as hard drive, CD-ROM drive, diskette drive s Input Devices--keyboard, mouse, and other input devices s Network--network adapter or other network-related devices s Audio--sound properties and audio device settings s Video--display timeouts and video device resources s Other--miscellaneous devices Troubleshooting 2-7 Categories by connection: s s s s s System Features--security, power, boot management System Devices--keyboard, mouse, parallel and serial ports ISA--ISA bus and connected devices PCI--PCI bus and connected devices PC Card--PC Card devices Running Computer Setup 1. Turn on or restart the computer by clicking Start Shut Down Restart the computer. 2. Press F10 when the blinking cursor appears in the upper-right corner of the screen. NOTE: If you a setup password is enabled, it must be used to access Computer Setup. 3. Click a language and press Enter. 4. Click Computer Setup and press Enter. 5. When you are finished, click Exit. Exiting Computer Setup 1. Click Exit. 2. Select one of the following Exit options: s Save--Saves the new settings and exits Computer Setup. NOTE: Some settings may not take effect until the computer is restarted. Ignore--Exits Computer Setup and restores previous settings. s Cancel--Returns to Computer Setup. s 2-8 Troubleshooting 2.5.2 Computer Checkup (TEST) Computer Checkup (TEST) determines whether the various computer components and devices are recognized by the computer and are functioning properly. You can display, print, or save the information that Computer Checkup generates. NOTE: Compaq Utilities are intended for testing only Compaq-supplied components. Testing of non-Compaq components may be inconclusive. Running Computer Checkup (TEST) 1. Plug the computer into an external power source. A low battery condition can interrupt the program. 2. Connect a printer if you want to print a log of error messages. 3. Turn on the external devices that you want to test. 4. Turn on or restart the computer. 5. Access Compaq Utilities by pressing F10 when the blinking cursor appears in the upper-right corner of the display. 6. Click Computer Checkup View the Device List. s If the list of installed devices is correct, click OK. s If the list is incorrect, ensure that any new devices are installed properly. 7. Select one of the following from the Test Option menu: s Quick Check Diagnostics s s Automatic Diagnostics Prompted Diagnostics 8. Follow the instructions on the screen as the devices are tested. 9. Click Exit Diagnostics Exit from this utility. Computer Checkup (TEST) Error Codes Computer Checkup (TEST) error codes occur if the system recognizes a problem while running Computer Checkup. These error codes help identify possible defective assemblies. Table 2-5 through Table 2-15 list Computer Checkup error codes, a description of the error condition, and the recommended action for resolving the condition. For removal and replacement procedures, refer to Chapter 5. IMPORTANT: Run Computer Checkup each time you complete a recommended action step. If the problem is resolved when POST and Computer Checkup are rerun (i.e., with no error codes), do not perform the remaining recommended action steps. NOTE: The error codes in the following tables are listed in an "AYE-XX" format, where: A or AA YY XX = Number that represents the faulty assembly = Test or action that failed = Specific problem Troubleshooting 2-9 Table 2-5 Processor Test Error Codes Error Code Description 101-xx 103-xx 104-xx 105-xx 106-xx 107-xx 108-xx 109-xx 110-xx 113-xx CPU test failed. DMA page registers test failed. Interrupt controller master test failed. Port 61 error. Keyboard controller self-test failed. CMOS RAM test failed. CMOS interrupt test failed. CMOS clock test failed. Programmable timer load data test failed. Protected mode test failed. Recommended Action Replace the processor board and retest. Replace the system board and retest. Table 2-6 Memory Test Error Codes Error Code Description 200-xx 202-xx 203-xx 204-xx Memory machine ID test failed. Memory system CMOS checksum failed. Write/Read test failed. Address test failed. Recommended Action The following steps apply to error codes 200-xx and 202-xx: 1. Flush the system CMOS and retest. See note. 2. Replace the system board and retest. The following applies to error codes 203-xx through 215-xx: Remove and replace the SODIMM memory board or system board (if the memory on the system board is faulty) and retest. 211-xx 214-xx 215-xx Random pattern test failed. Noise test failed. Random address test failed. Table 2-7 Keyboard Test Error Codes Error Code Description 300-xx 301-xx 302-xx 304-xx Failed ID Test. Failed Self test/Interface Test. Failed Individual Key Test. Failed Keyboard Repeat Test. Recommended Action 1. Reseat the keyboard assembly. 2. Replace the keyboard and retest. 3. Replace the system board and retest. Table 2-8 Parallel Printer Test Error Codes Error Code Description 401-xx 402-xx 403-xx Printer failed or not connected. Failed Port Test. Printer pattern test failed. Recommended Action 1. Connect the printer. 2. Check power to the printer. 3. Install the loopback connector and retest. 4. Check port and IRQ configuration. 5. Replace the system board and retest. 2-10 Troubleshooting Note: Fn + F11 clears the ESCD configuration information. If the Fn + F11 sequence is pressed very early after powering the machine on (after you see the keyboard LEDs blink, but before the video is initialized), CMOS memory will be invalidated. The ESCD is cleared, the machine is reset and boots with the "162 - System Options Not Set" message. This is a way to clear out configuration information, such as the Windows 95 knowledge about a docking station. It may help clear up problems if the configuration information had been corrupted. Timing of this keystroke sequence is critical, as there is a very narrow window during which the keys will be recognized. These keys are not documented to users. Table 2-9 Diskette Drive Error Codes Error Code 600-xx 601-xx 602-xx 603-xx 604-xx 605-xx 606-xx 609-xx 610-xx 697-xx 698-xx 699-xx Description Diskette ID drive types test failed. Diskette format failed. Diskette read test failed. Diskette write, read, compare test failed. Diskette random read test failed. Diskette ID media test failed. Diskette speed test failed. Diskette reset controller test failed. Diskette change line test failed. Diskette type error. Diskette drive speed not within limits. Diskette drive/media ID error. Recommended Action The following steps apply to error codes 600-xx through 698-xx: 1. Replace the diskette. 2. Replace the diskette drive and retest. 3. Replace the system board and retest. 1. Replace media. 2. Run Compaq Utilities. Table 2-10 Serial Test Error Codes Error Code 1101-xx Description Serial port test failed. Recommended Action 1. Check port configuration. 2. Replace the system board and retest. Troubleshooting 2-11 Table 2-11 Hard Drive Test Error Codes Error Code 1701-xx 1702-xx 1703-xx 1704-xx Description Hard drive format test failed. Hard drive read test failed. Recommended Action 1. Run Compaq Utilities and verify drive type. 2. Verify that all secondary drives have secondary drive capability. Hard drive write/read/compare test failed. 3. Replace the hard drive and retest. Hard drive random seek test failed. 4. Replace the system board and retest. 1705-xx Hard drive controller test failed. 1706-xx Hard drive ready test failed. 1707-xx Hard drive recalibration test failed. 1708-xx Hard drive format bad track test failed. 1709-xx Hard drive reset controller test failed. 1710-xx Hard drive park head test failed. 1715-xx Hard drive head select test failed. 1716-xx Hard drive conditional format test failed. 1717-xx Hard drive ECC* test failed. 1719-xx Hard drive power mode test failed. 1724-xx Network preparation test failed. 1736-xx Drive monitoring test failed. * ECC = Error Correction Code Table 2-12 Video Test Error Codes Error Code Description 501-xx 502-xx 503-xx 504-xx 505-xx 506-xx 507-xx 511-xx 512-xx 514-xx 516-xx 2402-xx 2403-xx 2404-xx 2405-xx Video controller test failed. Video memory test failed. Video attribute test failed. Video character set test failed. Video 80 × 25 mode 9 × 14 character cell test failed. Video 80 × 25 mode 8 × 8 character cell test failed. Video 40 × 25 mode test failed. Video screen memory page test failed. Video gray scale test failed. Video white screen test failed. Video noise pattern test failed. Video memory test failed. Video attribute test failed. Video character set test failed. Recommended Action The following actions apply to error codes 501-xx through 516-xx: 1. Disconnect external monitor and test with internal LCD display. 2. Replace the display assembly and retest. 3. Replace the system board and retest. The following actions apply to error codes 2402-xx through 2456-xx: 1. Run Compaq Utilities. 2. Disconnect external monitor and test with internal LCD display. Video 80 × 25 mode 9 × 14 character cell 3. Replace the display assembly and retest. test failed. 4. Replace the system board and retest. Continued 2-12 Troubleshooting Table 2-12 Video Test Error Codes Continued Error Code Description 2406-xx Recommended Action Video 80 × 25 mode 8 × 8 character cell test failed. 2411-xx Video screen memory page test failed. 2412-xx Video gray scale test failed. 2414-xx Video white screen test failed. 2416-xx Video noise pattern test failed. 2418-xx ECG/VGC memory test failed. 2419-xx ECG/VGC ROM checksum test failed. 2421-xx ECG/VGC 640 × 200 graphics mode test failed. 2422-xx ECG/VGC 640 × 350 16 color set test failed. 2423-xx ECG/VGC 640 × 350 64 color set test failed. 2424-xx ECG/VGC monochrome text mode test failed. 2425-xx ECG/VGC monochrome graphics mode test failed. 2431-xx 640 × 480 graphics test failed. 2448-xx Advanced VGA Controller test failed. 2451-xx 132-column Advanced VGA test failed. 2456-xx Advanced VGA 256 Color test failed. 2458-xx Advanced VGA Bit BLT test failed. The following step action to error codes 2458-xx to 2480-xx: 2468-xx Advanced VGA DAC test failed. Replace the system board and retest. 2477-xx Advanced VGA data path test failed. 2478-xx Advanced VGA BitBLT test failed. 2480-xx Advanced VGA Linedraw test failed. Refer to Table 2-26 for information about other video errors. Table 2-13 Audio Test Error Codes Error Code Description 114-01 Speaker test failed. Recommended Action 1. Check system configuration. 2. Verify that the audio/led board is properly seated. 3206-xx Audio System Internal Error 3. Verify display audio cable connection. Replace the audio board and retest. Table 2-14 Pointing Device Interface Test Error Codes Error Code Description 8601-xx 8602-xx Pointing device test failed. Interface test failed. Recommended Action Replace the keyboard/CPU cover assembly. Troubleshooting 2-13 Table 2-15 CD-ROM Test Error Codes Error Code Description 3301-xx CD-ROM drive read test failed. Recommended Action 1. Replace the CD and retest. 2. Verify that drivers are loaded and properly installed. 3305-xx 6600-xx 6605-xx 6608-xx 6623-xx CD-ROM drive seek test failed. ID test failed. Read test failed. Controller test failed. Random read test failed. 3. Replace the CD-ROM drive and retest. 4. Replace the system board and retest. 2.5.3 Running View System Information (INSPECT) The View System Information (INSPECT) utility provides information about the computer and installed or connected devices. You can display, print, or save the information. In order to access the INSPECT utility, follow the instructions below: 1. Connect a printer if you want to print the INSPECT information. 2. Turn on or restart the computer. 3. Access Compaq Utilities by pressing F10 when the cursor blinks in the upper-right corner of the display. 4. If prompted, select a language. 5. Click View System Information (INSPECT). 6. Click the item you want to view. The list includes the following: s s s s s s s System ROM Keyboard System ports System storage Graphics Memory s s s s s s Audio Operating system System files Windows files Miscellaneous Network - Applicable only if computer is docked in the 1 Convenience Base II 7. Follow the instructions on the screen to cycle through the screens, to return to the list and choose another item, or to print the information. 8. Select Exit Inspect. 1 The Compaq Prosignia is only supported by Convenience Base II. It is not supported by any prior convenience bases. 2-14 Troubleshooting 2.5.4 Running Compaq Diagnostics Compaq Diagnostics provides computer component information when the operating system is working. If you are running Windows 95, access Compaq Diagnostics for Windows by double-clicking My Computer Control Panel Compaq Diagnostics. 2.5.5 Boot Sequencing 1. 2. 3. 4. Run Computer Setup. Click the System Features icon Boot Management box MultiBoot tab. Designate the hard drive boot (startup) sequence you want. Click OK to accept the changes. Troubleshooting 2-15 2.5.6 Factory Default Settings Initialization Enable POST Memory Test Keyboard num Lock 1 2 Boot display Language Checked (enabled) Unchecked (Off) Hard drive in the computer Hard drive in the computer MultiBay Auto Language of country Ports Serial/infrared ports Serial port Infrared port Parallel port Ethernet port 3F8, IRQ4 2F8, IRQ3 378, IRQ7 300, IRQ9 Power Low Battery Warning Beep External Energy Saving Monitor Connected Power Management Enabled Conservation Level Level Definition High Checked (enabled) Unchecked (not connected) While operating power on battery Medium Suspend Time: 5 minutes Hibernation Timeout: Immediate Drive Timeout: 2 minutes Screen Timeout: 2 minutes Suspend Time: 10 minutes Hibernation Timeout: 1 hour Drive Timeout: 6 minutes Screen Timeout: 4 minutes Suspend Time: disabled Hibernation Timeout: low battery Drive Timeout: always on Screen Timeout: always on Medium Custom Security Enable QuickLock/QuickBlank Enable Power-On Password Disable Serial/Infrared Ports Disable Parallel Port Disable PC Card Slots Setup Password Power-On Password Diskette Drives Disable Diskette Drives Disable Diskette Boot Unchecked (Disabled) Unchecked (Disabled) Unchecked (Enabled) Unchecked (Enabled) Unchecked (Enabled) Password blank Password blank Unchecked (Enabled) Unchecked (Enabled) 2-16 Troubleshooting 2.6 Troubleshooting Without Diagnostics This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of messages that may be displayed on the screen. Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis. 2.6.1 Before Replacing Parts When troubleshooting a problem, check the following items for possible solutions before replacing parts: Verify that cables are connected properly to the suspected defective parts. s Verify that all required device drivers are installed. s Verify that all printer drivers have been installed. s 2.6.2 Checklist for Solving Problems If you encounter a minor problem with the computer or software applications, go through the following checklist for possible solutions: s s s s s Is the computer connected to an external power source, or does it have a fully charged battery pack installed? Are all cables connected properly and securely? Did the diskette drive contain a nonbootable diskette when you turned on the computer? Have you installed all the needed device drivers? For example, if you are using a mouse, you may need to install a mouse device driver. Are printer drivers installed? Eliminating the typical problems described in this Troubleshooting section may save you time and money. If the problem appears related to a software application, check the documentation provided with the software. You may discover something you can resolve easily by yourself. Troubleshooting 2-17 Solving Audio Problems Table 2-16 Solving Audio Problems Problem Probable Cause Recommended Action(s) Adjust the volume with the volume control buttons located at the top right corner of the computer. Immediately save open files and resolve the low battery condition. Enable low-battery warning beeps in Windows 95 Power Properties or in Computer Setup power management. Press Fn+F5, then press the right arrow key to increase the volume of the system beeps. In Windows 95, adjust the computer volume control buttons and adjust the volume control in Multimedia Properties. NOTE: The volume control in Multimedia Properties only affects the "Wave" audio sources such as system sounds and *.wav file playback. To change other sources such as MIDI, video sound, and game effects, use the Volume Control application in accessories/Multimedia. In Windows NT, adjust the multimedia volume control under the Accessories folder. Press the increase volume control button to increase the volume. Press Fn+F5, then press the right arrow key to increase the volume of the system beeps Use the external speakers or headphones or use the Convenience Base II speakers. To use the internal speakers, disconnect the external speakers or headphones or undock the computer. Make sure the speaker wires are connected properly. Replace the speakers. Continued Computer does not beep after Speaker volume has been the Power-On Self-Test turned down. (POST). Computer beeped five times and battery light is blinking. Computer does not beep to indicate a low-battery condition. Computer has entered a low-battery condition. Low-battery warning beeps have been turned off. System beeps have been turned down too low. The computer volume control and/or the software volume control needs to be adjusted. Audio playback is too low or too loud. Internal speakers produce no sound. Volume has been muted. External speakers or headphones are connected to the computer. Speaker wires are not connected. Speakers are bad. 2-18 Troubleshooting Table 2-16 Solving Audio Problems Continued Problem Internal speaker does not produce sound when an external audio source is connected to the stereo line-in jack. Probable Cause Volume may be turned off or set too low. Recommended Action(s) Adjust the volume control located at the top right corner of the computer. Use the volume control and mixing features available in Control Panel Multimedia. Adjust the volume using the speaker icon on the taskbar. Check line input connection. Disconnect the headphones or speakers to enable the internal speakers. External microphone does not work. Line input may not be connected properly. Headphones or speakers are connected to the stereo speaker/headphone jack, which disables the internal speakers. The wrong type of microphone or microphone plug is being used. The microphone may not be connected properly. Sound source is not selected. No sound from game program. Audio settings are not set correctly. Computer volume control is turned down. Headphones are connected. Volume or mixing controls set incorrectly. Check to see if a monophonic electret condenser microphone with a 3.5-mm plug is being used. Ensure that the microphone plug is properly connected to the mono microphone jack. Ensure that microphone is selected as the recording source in Control Panel Multimedia and that the recording level is adjusted. Check the game program audio settings. Adjust the volume with the volume control buttons located at the top right corner of the computer. Use or disconnect the headphones. Adjust the volume with the volume control buttons located at the top right corner of the computer. Use the volume control and mixing features available in Control Panel Multimedia. Verify that the sound source is selected in Control Panel Multimedia. Adjust the volume with the volume control buttons located on the right side of the computer. Check the volume and mixer controls in Control Panel Multimedia. No sound from headphones. Sound source not selected. Volume or mixing controls set incorrectly. Troubleshooting 2-19 Solving Battery Problems The following table lists some common battery problems and recommended actions to take when they occur. The "Solving Power Problems" section in this chapter also may be applicable. Table 2-17 Solving Battery and Battery Gauge Problems Problem The computer turns on the first time it is used, but the battery does not charge. Computer does not turn on when battery pack is inserted and power cord is unplugged. Probable Cause The battery pack is in ship mode. Battery is discharged. Recommended Action(s) Remove and reinsert the battery pack. Computer beeped five times and battery light is blinking. Computer battery light blinks to indicate low battery condition, but computer does not beep. Battery light does not turn on to indicate battery pack Is charging. Battery pack is warm to the touch after charging. Ensure that the battery pack is properly installed. Connect the computer to an external power source and charge the battery pack. Replace the battery pack with a fully charged battery pack. Check battery status by pressing Fn+F8. Computer has entered a Immediately save any open file(s). Then do low-battery condition. one of the following: 1. Connect the computer to an external power source. 2. Turn the computer off and replace the battery pack. Low battery beeps were Run Computer Setup and turn on the low turned off. battery warning beeps. Volume is turned off or turned Press Fn+F5 to adjust the volume of the down too low. system warning beeps. Battery pack is already No action is necessary. charged. Battery pack was exposed to Allow time for the battery pack to return to temperature extremes. room temperature. Battery pack is at the end of Replace the battery pack. its life. Warming occurs during No action is required. charging. Continued 2-20 Troubleshooting Table 2-17 Solving Battery and Battery Gauge Problems Continued Problem Computer turned off and information in memory was lost when the battery pack was replaced. You have to set the date and time every time you turn on the computer. Battery pack charge does not last as long as expected. Probable Cause Hibernation was disabled, Suspend was not initiated, or AC power was not connected before the discharged battery pack was removed. Real time clock (RTC) battery is at the end of its life. Recommended Action(s) To prevent loss of information next time, initiate Suspend, enable Hibernation, or connect AC power before changing batteries.. Replace the RTC battery. Battery pack is being exposed Keep the battery pack within the to high temperatures or recommended operating temperature range extremely cold temperatures. 50°F to 104°F (10°C to 40°C) or recommended storage range -4°F to 86°F (-20°C to 30°C ). Recharge the battery pack. Battery pack has partially If the computer is disconnected from the self-discharged. external power for more than two weeks, remove the battery pack to reduce the selfdischarge rate. Power management is Press Fn+F7 and set the power conservation disabled. level. An external device or PC Card Turn off or disconnect external devices when is draining the battery. not using them. Computer is beeping and Battery pack charge is low. Do one of the following: battery power light is blinking. Charge the battery pack. Replace the battery pack. Connect the computer to an external power source. Initiate Hibernation. Solving CD-ROM Drive Problems Table 2-18 Solving CD-ROM Drive Problems Problem CD-ROM drive cannot read a compact disc. Probable Cause Compact disc is not properly seated in the CD-ROM drive. Compact disc is loaded in the CD loading tray upside down. Compact disc has a scratch on its surface. CD-ROM drive is not connected properly. Recommended Action(s) Open the CD loading tray, lay the compact disc on it, then close the tray. Open the CD loading tray, turn over the compact disc (label facing up), then close the tray. Insert a different compact disc. Turn off the computer, remove the CD-ROM drive and reinsert it. CD-ROM drive is not recognized by the computer. Troubleshooting 2-21 Solving Diskette and Diskette Drive Problems Table 2-19 Solving Diskette and Diskette Drive Problems Problem Diskette drive cannot read a diskette. Probable Cause Diskette media has a bad sector. Using the wrong diskette type for the diskette drive type. Diskette is not formatted. Recommended Action(s) Copy remaining files to the hard drive or another formatted diskette. Reformat the diskette. Use the required diskette type. Format the diskette. If you are using Windows 95: From the Windows 95 desktop, double-click My Computer. Click 3 ½ Floppy (A:) File Format. Fill in the appropriate information, then click Start. If you are using Windows NT, format the diskette by entering format a: at the system prompt. Format the diskette. If you are using Windows 95: From the Windows 95 desktop, double-click My Computer. Click 3 ½ Floppy (A:) File Format. Fill in the required information, then click Start. If you are using Windows NT, format the diskette by entering format a: at the system prompt. Use another diskette that is not write-protected or disable the write-protect feature. Check the drive letter in your path statement. Save the information to another diskette. Run Computer Setup. Click on the Storage icon. Make sure Disable diskette write ability is not checked. Diskette drive cannot write to a diskette. Diskette is not formatted. Diskette is write-protected.