compaq presario 1200xl User Manual
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34 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES Presario 1200XL Series Model XL300, XL300A, and XL300B Solving Printer Problems If you experience problems printing, run a printer self-test. Refer to the documentation provided with your printer for instructions. If the self-test fails, the problem is printer-specific. Refer also to the printing section of your application documentation. Solving Printer Problems ProblemProbable CauseSolution(s) Printer will not turn on. The signal cable may not be connected properly, or the printer is unplugged.Ensure that the signal cable is properly connected and that the power cord is connected to the electrical outlet. Printer will not print.Printer is not turned on, or is offline.Turn the printer on and set it to On Line. The device drivers for the application are not installed.Refer to the printer documentation to install the correct printer driver. The printer is set up for a network, but is not connected to the network.Connect the printer to the network. Printer cable is too long, unshielded, or defective.Replace the cable. Paper tray is empty.Fill the paper tray with paper and set the printer to On Line. Printer prints garbled information.Correct printer drivers are not installed.Refer to the printer documentation to install the correct printer driver. Cable is not connected properly.Ensure that the printer signal cable is properly connected to the Notebook. Cable is defective. Replace the printer cable and retest.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 35 Presario 1200XL Series Model XL300, XL300A, and XL300B Solving TouchPad/Pointing Device Problems The following table lists some common causes and solutions for TouchPad/pointing device problems. Solving TouchPad/Pointing Device Problems ProblemProbable CauseSolution(s) TouchPad or mouse does not work.Incorrect or no device driver is installed.Install the device driver and add to the AUTOEXEC.BAT file or CONFIG.SYS file. The device driver is not installed in Windows.Install the TouchPad/mouse driver in Windows. External mouse does not work.Mouse is not securely connected, or is connected to an incorrect external connector.Ensure that the mouse is securely connected to the appropriate external connector. TouchPad or mouse does not work even though the device is enabled in Windows.Mouse is not enabled.Ty p e MOUSE at the system prompt to activate the mouse device driver. Add a line in the AUTOEXEC.BAT file to activate the mouse driver automatically each time the computer is turned on or restarted. Cable is not properly seated in TouchPad board.Reseat cable. Defective TouchPad board.Replace the TouchPad board. Defective system board. Replace system board. Device driver is not correctly installed in Windows.Install the appropriate device driver in Windows. Cursor skips or moves abnormally when using the TouchPad.The TouchPad needs to be cleaned.Clean the TouchPad with a cloth dampened with alcohol or an ammonia-based glass cleaner. Wipe up liquid with a dry cloth.
36 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES Presario 1200XL Series Model XL300, XL300A, and XL300B Contacting Compaq Support Obtain the following information before contacting Compaq Reseller Support: Product name Product serial number Purchase date Conditions in which the problem occurred Any error messages that have occurred Hardware configuration Type of printer connected Hardware/software installed Printed results of Computer Checkup (TEST) Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible. Shipping Preparation To ship the Notebook, complete the following steps: 1. Back up the critical hard drive files. Ensure that backup tapes/diskettes are not exposed to electrical or magnetic fields while stored or in transit. 2. Turn off the Notebook and external devices. 3. Disconnect the external devices from their power sources, then from the Notebook. Important: Ensure that there is no diskette in the diskette drive and that there are no PC cards in the PC slots. 4. Close the display and all exterior doors of the Notebook. 5. Pack the Notebook in sufficient packing material to protect it. Use the original packing box or similar packaging.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESREMOVAL SEQUENCE 1 Presario 1200XL Series Model XL300, XL300A, and XL300B Removal Sequence This chapter provides details for removing and replacing each component of the Presario 1200XL units. Electrostatic Discharge When removing or replacing parts, be careful to discharge static electricity before touching the internal Notebook components. A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices and microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to an electrostatic discharge may not seem to be affected and continue to work perfectly throughout a normal cycle. However, the discharge degrades internal layers, which reduces the operating life of the device. Networks built into many integrated circuits provide some protection; but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions. The table below shows the amount of static electricity generated by common activities associated with servicing computers. Ä CAUTION: As little as 700 Volts can degrade Notebook components. Be sure to ground yourself before touching the Notebook or its subassemblies. Electrostatic Voltage EventRelative Humidity 10%40%50% Walking across carpet 35,000 V 15,000 V 7,500 V Walking across vinyl floor12,000 V5,000 V3,000 V Motion of bench worker 6,000 V 800 V 400 V Removing DIPS from plastic tubes2,000 V700 V400 V Removing DIPS from vinyl trays 11,500 V 4,000 V 2,000 V Removing DIPS from styrofoam14,500 V5,000 V3,500 V Removing bubble pack from PCBs 26,000 V 20,000 V 7,000 V Packing PCBs in foam-lined box21,000 V11,000 V5,000 V
2 REMOVAL SEQUENCEPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES Presario 1200XL Series Model XL300, XL300A, and XL300B Tool and Software Requirements The following items are required to service the Notebook: •Torx T-9 screwdriver 5mm nut drivers (for screwlocks and standoffs) Small standard screwdriver Small Phillips screwdriver Diagnostics software Screws The screws used in the Notebook are not interchangeable. If an incorrect screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations. Important: As each subassembly is removed from the Notebook, place it away from the work area to prevent damage. Connectors and Plastic Parts Plastic parts can be damaged by the use of excessive force during disassembly and reassembly. When handling plastic parts, use care. Apply pressure only at the points designated in the instructions. Most of the connectors in these Notebooks are ZIF Connector s.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESREMOVAL SEQUENCE 3 Presario 1200XL Series Model XL300, XL300A, and XL300B ZIF Connector The 1200XL Series Notebooks use zero insertion force (ZIF) connectors on the system board. Ä CAUTION: A ZIF connector and its attached cable can be easily damaged. Handle only the connector slide when removing or replacing a cable. Never pull or twist on the cable while it is connected. To remove a cable from a ZIF connector, lift both corners of the ZIF connector and slide the cable out simultaneously with constant light pressure. Ä CAUTION: When servicing this Notebook, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the Notebook.
4 REMOVAL SEQUENCEPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES Presario 1200XL Series Model XL300, XL300A, and XL300B Cables Most cables used throughout the unit are ribbon cables. Cables must be handled with extreme care to avoid damage. Use the following precautions when handling cables to avoid damage to the cable and the Notebook: Always handle cables by their connectors. In all cases avoid bending, twisting, pulling, or tearing cables. Apply only the minimum pressure required to seat or unseat cables from their connectors. Place the cables so that they are not caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; they can tear easily. Ä CAUTION: When servicing these Notebooks, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can cause severe damage to the unit. The following illustrations show the proper placement for each cable: Diskette Drive Ribbon Cable Keyboard Ribbon Cable Speaker Assembly CableHard Drive Ribbon Cable
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESREMOVAL SEQUENCE 5 Presario 1200XL Series Model XL300, XL300A, and XL300B Diskette Drive Ribbon Cable The ribbon cable position for the diskette drive is shown below. Ä CAUTION: When servicing this Notebook, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the Notebook.
6 REMOVAL SEQUENCEPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES Presario 1200XL Series Model XL300, XL300A, and XL300B Speaker Assembly Cable The cable position for the speaker assembly is shown below. The cable is routed under the battery charger board and under the edge of the system board. Ä CAUTION: When servicing this Notebook, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the Notebook.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESREMOVAL SEQUENCE 7 Presario 1200XL Series Model XL300, XL300A, and XL300B Keyboard Ribbon Cable The ribbon cable position for the keyboard is shown below. Ä CAUTION: When servicing this Notebook, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the Notebook.