User manual HP COMPAQ NC6400 - Supplementary Guide

Maintenance and Service Guide HP Compaq nc6400 Notebook PC Document Part Number: 406847-001 May 2006 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts; troubleshooting computer problems; and performing computer disassembly procedures. © Copyright 2006 Hewlett-Packard Development Company, L.P. Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Intel and Core are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. SD Logo is a trademark of its proprietor. Java is a trademark of Sun Microsystems, Inc. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Maintenance and Service Guide HP Compaq nc6400 Notebook PC First Edition: May 2006 Document Part Number: 406847-001 Contents 1 Product Description 1.1 1.2 1.3 1.4 1.5 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­2 Resetting the Computer. . . . . . . . . . . . . . . . . . . . . . . 1­4 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1­5 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1­6 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1­24 2 Troubleshooting 2.1 Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using Computer Setup . . . . . . . . . . . . . . . . . . . . . . . Selecting from the File Menu . . . . . . . . . . . . . . . . . . Selecting from the Security Menu . . . . . . . . . . . . . . Selecting from the Diagnostics Menu. . . . . . . . . . . . Selecting from the System Configuration Menu. . . . 2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . 2­1 2­1 2­2 2­3 2­4 2­5 2­6 Maintenance and Service Guide iii Contents 3 Illustrated Parts Catalog 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3­1 Computer Major Components. . . . . . . . . . . . . . . . . . 3­2 Display Assembly Components . . . . . . . . . . . . . . . 3­16 Plastics Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3­18 Cable Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3­20 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3­21 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3­22 Sequential Part Number Listing . . . . . . . . . . . . . . . 3­25 4 Removal and Replacement Preliminaries 4.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Service Considerations . . . . . . . . . . . . . . . . . . . . . . . Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4.3 Preventing Damage to Removable Drives . . . . . . . . 4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . 4.5 Packaging and Transporting Precautions . . . . . . . . . 4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4­1 4­2 4­2 4­2 4­3 4­4 4­5 4­6 4­7 iv Maintenance and Service Guide Contents 5 Removal and Replacement Procedures 5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­2 5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5­3 5.3 Preparing the Computer for Disassembly . . . . . . . . . 5­5 5.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­7 5.5 Computer Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­11 5.6 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . 5­12 5.7 External Memory Module . . . . . . . . . . . . . . . . . . . . 5­14 5.8 Mini Card WLAN Module . . . . . . . . . . . . . . . . . . . 5­17 5.9 MultiBay II Device . . . . . . . . . . . . . . . . . . . . . . . . . 5­21 5.10 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­23 5.11 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­28 5.12 Internal Memory Module . . . . . . . . . . . . . . . . . . . 5­29 5.13 Modem Module. . . . . . . . . . . . . . . . . . . . . . . . . . . 5­31 5.14 Mini Card WWAN Module . . . . . . . . . . . . . . . . . 5­33 5.15 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­35 5.16 Power Button Board . . . . . . . . . . . . . . . . . . . . . . . 5­37 5.17 Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­38 5.18 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­39 5.19 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­42 5.20 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5­44 5.21 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­55 5.22 PC Card/Digital Media Board. . . . . . . . . . . . . . . . 5­61 5.23 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­64 5.24 Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­66 5.25 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­68 5.26 MultiBay II Eject Assembly . . . . . . . . . . . . . . . . . 5­77 Maintenance and Service Guide v Contents 6 Specifications A Screw Listing B Backup and Recovery C Display Component Recycling D Connector Pin Assignments E Power Cord Set Requirements Index vi Maintenance and Service Guide 1 Product Description The HP Compaq nc6400 Notebook PC offers advanced modularity, Intel® CoreTM Duo and Core Solo processors, and extensive multimedia support. HP Compaq nc6400 Notebook PC Maintenance and Service Guide 1­1 Product Description 1.1 Features The following processors, varying by computer model: Intel Core Duo T2600 (2.17-GHz) processor Intel Core Duo T2500 (2.00-GHz) processor Intel Core Duo T2400 (1.83-GHz) processor Intel Core Duo T2300 (1.67-GHz) processor Intel Core Solo T1300 (1.66-GHz) processor 14.1-inch, WXGA+, TFT (1440 × 900) and 14.1-inch, WXGA, TFT (1440 × 900) display, with over 16.8 million colors, varying by computer model 100-, 80-, 60-, and 40-GB high-capacity hard drive, varying by computer model 256-MB DDR2 synchronous DRAM (SDRAM) at 533 MHz and 667 MHz, expandable to 4.0 GB Microsoft® Windows® XP Professional Full-size Windows keyboard with numeric keypad TouchPad and pointing stick pointing devices, including a dedicated vertical scroll region Integrated 10 Base-T/100 Base-TX Ethernet local area network (LAN) network interface card (NIC) with RJ-45 jack Integrated high-speed 56K modem with RJ-11 jack Integrated wireless support for Mini Card IEEE 802.11a/b/g or 802.11b/g Wireless LAN (WLAN) device Support for one Type I or Type II PC Card slot, with support for both 32-bit (CardBus) and 16-bit PC Cards, varying by computer model 1­2 Maintenance and Service Guide Product Description External 90- and 65-watt AC adapters with 3-wire power cord, varying by computer model 8-cell and 4-cell Li-Ion batteries Stereo speakers Volume up, volume mute, and volume down buttons Support for the following optical drives: DVD±RW and CD-RW Double-Layer Combo Drive DVD±RW and CD-RW Combo Drive DVD-ROM drive Connectors: Accessory battery Audio-in (microphone) Audio-out (headphone) Digital Media Slot Docking connector External monitor IEEE 1394 RJ-11 (modem) RJ-45 (network) S-Video-out SmartPower Three Universal Serial Bus (USB) v. 2.0 Maintenance and Service Guide 1­3 Product Description 1.2 Resetting the Computer If the computer you are servicing has an unknown password, follow the steps below to reset the password. These steps also clear CMOS. not an unknown password The following steps will has clear enabled in the BIOS. Ifif the stringent security option been stringent security is enabled, the system board must be replaced to reset an unknown password. Refer to Section 5.21, "Top Cover," for more information on replacing the system board. Before replacing the system board, perform the steps below to make sure stringent security has been properly enabled. Enabling stringent security provides enhanced protection for the power-on password and administrator password and other forms of power-on authorization. Stringent security is enabled/disabled by accessing the Password Options menu in the Computer Setup utility. Refer to Section 2.1, "Computer Setup," for more information. 1. Prepare the computer for disassembly (refer to Section 5.3, "Preparing the Computer for Disassembly," for more information). 2. Remove the real-time clock (RTC) battery (refer to Section 5.11, "RTC Battery," for more information on removing and replacing the RTC battery). 3. Wait approximately 5 minutes. 4. Replace the RTC battery and reassemble the computer. 5. Connect AC power to the computer. Do not reinsert any batteries at this time. 6. Turn on the computer. All passwords and all CMOS settings have been cleared. 1­4 Maintenance and Service Guide Product Description 1.3 Power Management The computer comes with power management features that extend battery operating time and conserve power. The computer supports the following power management features: Standby Hibernation Setting customization by the user Hotkeys for setting the level of performance Battery calibration Lid switch standby/resume Power button Advanced Configuration and Power Management (ACPM) compliance Maintenance and Service Guide 1­5 Product Description 1.4 External Components The external components on the front of the computer are shown below and described in Table 1-1. Front Components Table 1-1 Front Components Item 1 Component Wireless light Function On: An integrated wireless device, such as a wireless local area network (LAN) device and/or a Bluetooth® device, is turned on. On: The computer is on. Blinking: The computer is in standby. Blinking rapidly: An HP Smart AC Adapter with a higher power rating should be connected. Off: The computer is off or in hibernation. 2 Power light 1­6 Maintenance and Service Guide Product Description Table 1-1 Front Components (Continued) Item 3 Component Battery light Function Amber: A battery is charging. Green: A battery is close to full charge capacity. Blinking amber: A battery that is the only available power source has reached a low-battery condition. When the battery reaches a critical low-battery condition, the battery light begins blinking more quickly. Off: If the computer is connected to an external power source, the light is turned off when all batteries in the computer are fully charged. If the computer is not connected to an external power source, the light is turned off until the battery reaches a low-battery condition. Blinking green: The hard drive or optical drive is being accessed. Amber: HP Mobile Data Protection has temporarily parked the hard drive. Provides wireless communication between the computer and an optional IrDA-compliant device. Supports Secure Digital (SD) Memory Cards and MultiMediaCards (MMC). Produce stereo sound. Opens the computer. 4 Drive light 5 Infrared port 6 7 8 Digital Media Slot Stereo speakers (2) Display release latch Maintenance and Service Guide 1­7 Product Description The external components on the right side of the computer are shown below and described in Table 1-2. Right-Side Components 1­8 Maintenance and Service Guide Product Description Table 1-2 Right-Side Components Item 1 2 3 Component Smart card slot MultiBay II device USB port Function Supports optional smart cards and JavaTM Cards. Supports an optical disc. The type of optical drive varies by computer model. Connects USB 1.1- and 2.0-compliant devices to the computer using a standard USB cable, or connects an optional External MultiBay II to the computer. The MultiBay II must also be connected to an external power source. Connects an optional network cable. Connects the modem cable. 4 5 RJ-45 (network) jack RJ-11 (modem) jack Maintenance and Service Guide 1­9 Product Description The external components on the left side of the computer are shown below and described in Table 1-3. Left-Side Components 1­10 Maintenance and Service Guide Product Description Table 1-3 Left-Side Components Item 1 Component Exhaust vent Function Provides airflow to cool internal components. Ä To prevent overheating, do not obstruct vents. Use the computer only a hard, flat surface. Do not allow a hard surface, such as an adjoining printer, or a soft surface, such as pillows or thick rugs or clothing, to block airflow. 2 USB ports (2) Connect USB 1.1- and 2.0-compliant devices to the computer using a standard USB cable, or connect an optional External MultiBay II to the computer. The MultiBay II must also be connected to an external power source. Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. Produces computer sound when connected to optional power stereo speakers, headphones, ear buds, a headset, or television audio. Supports optional Type I or Type II 32-bit (CardBus) or 16-bit PC Cards. 3 Audio-in (microphone) jack Audio-out (headphone) jack 4 5 PC Card slot Maintenance and Service Guide 1­11 Product Description The external components on the rear panel of the computer are shown below and described in Table 1-4. Rear Panel Components 1­12 Maintenance and Service Guide Product Description Table 1-4 Rear Panel Components Item 1 Component Security cable slot Function Attaches an optional security cable to the computer. Ä 2 3 4 Battery bay Smart adapter power connector S-Video-out jack Security solutions are designed to act as deterrents. These deterrents may not prevent a product from being mishandled or stolen. Holds a battery. Connects an AC adapter or an optional power adapter. Connects an optional S-Video device, such as a television, VCR, camcorder, projector, or video capture card. Connects an optional VGA external monitor or projector. 5 External monitor port Maintenance and Service Guide 1­13 Product Description The standard keyboard components of the computer are shown below and described in Table 1-5. Standard Keyboard Components 1­14 Maintenance and Service Guide Product Description Table 1-5 Standard Keyboard Components Item 1 Component fn key Function Executes frequently used system functions when pressed in combination with a function key or the esc key. Enables caps lock and turns on the caps lock light. Perform system and application tasks. When combined with the fn key, several keys and buttons perform additional tasks as hotkeys. Enables numeric lock, turns on the embedded numeric keypad, and turns on the num lock light. In Windows, can be used like the keys on an external numeric keypad. Moves the cursor around the screen. In Windows, displays a shortcut menu for items beneath the pointer. In Windows, displays the Windows Start menu. 2 3 caps lock key f1 to f12 keys (12) 4 num lock key 5 6 7 8 Embedded keypad Arrow keys Windows applications key Windows logo key Maintenance and Service Guide 1­15 Product Description The computer top components are shown below and described in Table 1-6. Top Components 1­16 Maintenance and Service Guide Product Description Table 1-6 Top Components Item 1 Component Power button Function When the computer is: Off, press to turn on the computer. On, briefly press to initiate hibernation. In standby, briefly press to resume from standby. In hibernation, briefly press to restore from hibernation. If the system has stopped responding and Windows shutdown procedures cannot be used, press and hold for 5 seconds to turn off the computer. 2 3 Info Center button Wireless button Launches Info Center, which enables you to open various software solutions. Turns the wireless functionality on or off, but does not create a wireless connection. establish a wireless Towireless network mustconnection, a already be set up. 4 5 6 7 Presentation button Volume mute button Volume down button Volume up button Turns on the presentation feature. Mutes or restores speaker volume. Decreases speaker volume. Increases speaker volume. Maintenance and Service Guide 1­17 Product Description The computer top components are shown below and described in Table 1-7. Top Components 1­18 Maintenance and Service Guide Product Description Table 1-7 Top Components Item 1 Component Power light Function On: The computer is on. Blinking: The computer is in standby. Blinking rapidly: An AC adapter with a higher power rating should be connected. Off: The computer is off or in hibernation. 2 Wireless light On: An integrated wireless device, such as a wireless local area network (LAN) device and/or a Bluetooth® device, is turned on. On: caps lock is on. On: num lock or the numeric keypad is on. Allows a fingerprint logon to Windows instead of using a password. 3 4 5 Caps lock light Num lock light Fingerprint reader Maintenance and Service Guide 1­19 Product Description The computer pointing device components are shown below and described in Table 1-8. Pointing Device Components 1­20 Maintenance and Service Guide Product Description Table 1-8 Pointing Device Components Item 1 2 3 Component Pointing stick Pointing stick buttons TouchPad Function Moves the pointer and selects or activates items on the screen. Function like the left, middle, and right buttons on an external mouse. Moves the pointer and selects or activates items on the screen. Can be set to perform other mouse functions, such as scrolling, selecting, and double-clicking. Function like the left, middle, and right buttons on an external mouse. Scrolls up or down. 4 5 TouchPad buttons TouchPad scroll zone Maintenance and Service Guide 1­21 Product Description The external components on the bottom of the computer are shown below and described in Table 1-9. Bottom Components Table 1-9 Bottom Components Item 1 2 3 4 Component Battery bay Docking connector Battery release latches (2) Accessory battery connector Function Holds the battery. Connects the computer to an optional docking device. Release the battery from the battery bay. Connects an optional HP Ultra-Capacity Battery or HP Extended Life Battery. 1­22 Maintenance and Service Guide Product Description Table 1-9 Bottom Components (Continued) Item 5 Component Exhaust vents Function Provides airflow to cool internal components. Ä To prevent overheating, do not obstruct vents. Use the computer only a hard, flat surface. Do not allow a hard surface, such as an adjoining printer, or a soft surface, such as pillows or thick rugs or clothing, to block airflow. 6 7 8 9 Hard drive bay Memory module compartment Bluetooth compartment Serial number Holds the primary hard drive. Contains one memory slot that supports replaceable memory modules. Contains a Bluetooth device (select computer models only). Identifies the computer. This number is needed when contacting customer support. Holds an optional wireless LAN device. 10 Mini Card compartment Ä To prevent an unresponsive system and the display of a warning message, install only a Mini Card device authorized for use in your computer by the governmental agency that regulates wireless devices in your country. If you install a device and then receive a warning message, remove the device to restore computer functionality. Then contact Customer Care. Maintenance and Service Guide 1­23 Product Description 1.5 Design Overview This section presents a design overview of key parts and features of the computer. Refer to Chapter 3, "Illustrated Parts Catalog," to identify replacement parts, and Chapter 5, "Removal and Replacement Procedures," for disassembly steps. The system board provides the following device connections: Audio Display Hard drive Intel Core Duo and Core Solo processors Keyboard and TouchPad Memory modules Mini Card module PC Card Ä CAUTION: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the left and right sides of the computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software. Exhaust air is displaced through the ventilation grill located on the left side of the computer. 1­24 Maintenance and Service Guide 2 Troubleshooting Å WARNING: Only authorized technicians trained by HP should 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, do not attempt to make repairs at the component level or modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modification may void any warranty or exchange allowances. 2.1 Computer Setup Computer Setup is a system information and customization utility that can be used even when the operating system is not working or will not load. This utility includes settings that are not available in Windows. Using Computer Setup Information and settings in Computer Setup are accessed from the File, Security, Diagnostics, or System Configuration menus: 1. Turn on or restart the computer. Press f10 while the F10 = ROM-Based Setup message is displayed in the lower-left corner of the screen. To change the language, use the cursor control keys to navigate to the System Configuration menu. To view navigation information, press f1. To return to the Computer Setup menu, press esc. Maintenance and Service Guide 2­1 Troubleshooting 2. Select the File, Security, Diagnostics, or System Configuration menu. 3. To close Computer Setup and restart the computer: Select File > Save changes and exit, and then press enter. ­ or ­ Select File > Ignore changes and exit, and then press enter. ­ or ­ Select File > Restore defaults, and then press enter. 4. When you are prompted to confirm your action, press f10. Selecting from the File Menu Table 2-1 File Menu Select System Information To Do This View identification information about the computer, processor, memory and cache size, and system ROM. View BIOS revision, keyboard controller version, and battery serial number information. 2­2 Maintenance and Service Guide Troubleshooting Selecting from the Security Menu Table 2-2 Security Menu Select Setup Password Power-On Password Password Options (Password options can be selected only when a power-on password has been set.) DriveLock Passwords To Do This Enter, change, or delete an Setup password. Enter, change, or delete a power-on password. Enable/disable: Stringent security. Requirement of password on restart. Enable/disable DriveLock; change a DriveLock user or master password. Settings are accessible DriveLock enter Computer Setup byonly when you turning on (not restarting) the computer. Smart Card Security Enable/disable smart card power-on support. A setup password must be established to use this feature. TPM Embedded Security Enable/disable: Embedded security device state. Power-on authentication support. Automatic DriveLock support. Establish: Notebook asset tracking number. Notebook ownership tags. Disk Sanitizer Establish fast, optimum, or custom settings for disk sanitizing. System IDs *Not applicable to SuperDisk LS-120 drives. Maintenance and Service Guide 2­3 Troubleshooting Selecting from the Diagnostics Menu Table 2-3 Diagnostics Menu Select HDD Self-Test Options Memory Check To Do This Run a quick comprehensive self test on hard drives in the system that support the test features. Run a quick comprehensive test on system memory on the following categories: Walking 0s Walking 1s High Address line testing Alternate Pattern testing 2­4 Maintenance and Service Guide Troubleshooting Selecting from the System Configuration Menu Table 2-4 System Configuration Menu Select Language Boot Options To Do This Change the Computer Setup language. Enable/disable MultiBoot, which sets a startup sequence that can include most bootable devices and media in the system. Enable/disable: Swap Fn/Ctrl keys. USB legacy support. BIOS DMA data transfers. Fan Always on while on AC Power. Data Execution Prevention. LAN Power save. Built-In Device Options Enable/disable: Embedded WLAN Device Radio. Embedded Bluetooth Device Radio. LAN/WLAN Switching. Wake on LAN from Off. Enable/disable: USB Port. 1394 Port. CardBus Slot. Device Configurations Port Options Maintenance and Service Guide 2­5 Troubleshooting 2.2 Troubleshooting Flowcharts Table 2-5 Troubleshooting Flowcharts Overview Flowchart 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 Description "Flowchart 2.1--Initial Troubleshooting" "Flowchart 2.2--No Power, Part 1" "Flowchart 2.3--No Power, Part 2" "Flowchart 2.4--No Power, Part 3" "Flowchart 2.5--No Power, Part 4" "Flowchart 2.6--No Video, Part 1" "Flowchart 2.7--No Video, Part 2" "Flowchart 2.8--Nonfunctioning Docking Device (if applicable)" "Flowchart 2.9--No Operating System (OS) Loading" "Flowchart 2.10--No OS Loading, Hard Drive, Part 1" "Flowchart 2.11--No OS Loading, Hard Drive, Part 2" "Flowchart 2.12--No OS Loading, Hard Drive, Part 3" "Flowchart 2.13--No OS Loading, Diskette Drive" "Flowchart 2.14--No OS Loading, Optical Drive" "Flowchart 2.15--No Audio, Part 1" "Flowchart 2.16--No Audio, Part 2" "Flowchart 2.17--Nonfunctioning Device" "Flowchart 2.18--Nonfunctioning Keyboard" "Flowchart 2.19--Nonfunctioning Pointing Device" "Flowchart 2.20--No Network/Modem Connection" 2­6 Maintenance and Service Guide Troubleshooting Flowchart 2.1--Initial Troubleshooting Begin troubleshooting. N Go to Is there power? "Flowchart 2.2--No Power, Part 1." Y N Beeps, LEDs, or error messages? Check LED board, speaker connections. All drives working? N Go to "Flowchart 2.17--Nonfunctioning Device." Y N Go to Is there video? (no boot) "Flowchart 2.6--No Video, Part 1." Y N Keyboard/ pointing device working? Go to "Flowchart 2.18--Nonfunctioning Keyboard" or "Flowchart 2.19--Nonfunctioning Pointing Device." Y N Go to Is the OS loading? "Flowchart 2.9--No Operating System (OS) Loading." Y N Connecting to network or modem? Y N Go to "Flowchart 2.20--No Network/Modem Connection." Go to Is there sound? "Flowchart 2.15--No Audio, Part 1." Y Y End Maintenance and Service Guide 2­7 Troubleshooting Flowchart 2.2--No Power, Part 1 No power (power LED is off). Remove from docking device (if applicable). N Power up on battery power? Reset power.* Power up on battery power? N Go to "Flowchart 2.3--No Power, Part 2." Y N Power up on AC power? Reset power.* Y N Power up on AC power? Go to "Flowchart 2.4--No Power, Part 3." Y Y Power up in docking device? Done Y *NOTES 1. On select computer models, there is a separate reset button. 2. On select computer models, the computer can be reset using the standby switch and either the lid switch or the main power switch. N 1. Reset the power cables in the docking device and at the AC outlet. 2. Be sure the AC power source is active. 3. Be sure that the power strip is working. Y Done Power up in docking device? N Go to "Flowchart 2.8--Nonfunctioning Docking Device (if applicable)." 2­8 Maintenance and Service Guide Troubleshooting Flowchart 2.3--No Power, Part 2 Continued from "Flowchart 2.2--No Power, Part 1." Visually check for debris in battery socket and clean if necessary. Y Power on? Done N Check battery by recharging it, moving it to another computer, or replacing it. N Power on? Replace power supply (if applicable). Y N Go to Done Power on? "Flowchart 2.4--No Power, Part 3." Y Done Maintenance and Service Guide 2­9 Troubleshooting Flowchart 2.4--No Power, Part 3 Continued from "Flowchart 2.3--No Power, Part 2." Plug directly into AC outlet. Y Power LED on? Done N Reseat AC adapter in computer and at power source. Y Power on? Done External N N Power outlet active? Try different outlet. Internal or external AC adapter? Internal Go to Replace external AC adapter. Y Replace power cord. N Power on? "Flowchart 2.5--No Power, Part 4." Y Done Y Power on? Done N 2­10 Maintenance and Service Guide Troubleshooting Flowchart 2.5--No Power, Part 4 Continued from "Flowchart 2.4--No Power, Part 3." Open computer. Y Loose or damaged parts? N Close computer and retest. Reseat loose components and boards and replace damaged items. N Power on? Replace the following items (if applicable). Check computer operation after each replacement: 1. Internal DC-DC converter* 2. Internal AC adapter 3. Processor board* 4. System board* Y *NOTE: Replace these items as a set to prevent shorting out among components. Done Maintenance and Service Guide 2­11 Troubleshooting Flowchart 2.6--No Video, Part 1 No video.