User manual SONY VAIO VGN-P688E/G

[. . . ] All other product names mentioned herein may be trademarks or registered trademarks of their respective companies. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this publication is provided "as is" without warranty of any kind. The entire risk arising out of the use of this information remains with the recipient. [. . . ] Does the computer have all necessary device drivers?Have printer drivers been installed for each application?Was the Windows operating system properly exited?Has the computer hard drive been scanned for viruses? s s s s s s s Troubleshooting 2-1 2. 3 Power-On Self Test (POST) When the computer starts, the system BIOS runs a series of internal checks on the hardware. This allows the computer to detect problems as early as the power-on stage. The POST alerts you to problems by displaying error messages. If POST detects an error, the system displays an error message on the display. If the error occurs before the display comes up, error codes or system beeps indicate the POST error. The value for diagnostic POST (378H) is written at the beginning of the test. Therefore, if the test fails, you can determine where the problem occurred by reading the last value written to POST 378H by the PIO Debug Board Plug at the PIO port. The following table lists error codes in sequential order on the PIO Debug Board. Table 2-1 Error Codes Code 01h 02h 03h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 0Ch 0Fh 10h 11h Description Start of boot loader sequence. Try another working CD-ROM drive. Hard Drive Test Error s s Check the hard disk drive settings. Try another working hard disk drive. Troubleshooting 2-7 USB Board Test Error s s s Ensure that the USB device is installed properly. Ensure that the USB driver is installed. Verify that the USB device conforms to the correct standard, UHCI as opposed to OHCI. Try another working UHCI device. s Serial Port Test Error s Ensure that the mouse or other I/O devices are installed properly (including associated drivers). Ensure that the COM port is set properly. Try another working device. s s Parallel Port Test Error s s s Ensure that the PIO device is installed properly. Try another working device. Audio Failure s s s s Ensure that all cables and devices are connected properly. Ensure that the appropriate software drivers are installed. Try another working speaker, cable, and CD-ROM. Ensure that there are no address or IRQ conflicts. 2-8 Troubleshooting chapter 3 ILLUSTRATED PARTS CATALOG This chapter provides an illustrated parts breakdown and a reference for spare part numbers and option part numbers for the Compaq Armada 100S and Notebook 100 Personal Computers. 3. 1 Serial Number Location When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer (Figure 3-1). Figure 3-1. [. . . ] Removing the PC Card Door 5-36 Removal and Replacement Procedures 5. 20 Diskette Drive Diskette Drive Spare Part Numbers Diskette drive, 1. 44 MB Diskette drive cable (spared in Cable Kit) 176047-001 176004-001 1. Prepare the computer for disassembly (Section 5. 3) and, in the order below, remove the following components: s Top cover (Section 5. 10) s Hard drive (Section 5. 11) s RTC battery (Section 5. 12) s Keyboard (Section 5. 13) s EMI shield (Section 5. 14) s TouchPad (Section 5. 15) s Speakers (Section 5. 16) s Display assembly (Section 5. 17) s Speaker housing (Section 5. 18) s System board (Section 5. 19) Removal and Replacement Procedures 5-37 2. Lift the back edge of the diskette drive and swing it up and toward the front of the base assembly (Figure 5-34). Figure 5-34. Remove the diskette drive. 5-38 Removal and Replacement Procedures If necessary, remove the diskette drive cable by releasing the ZIF connector to which the cable is attached and disconnecting the cable (Figure 5-35). Figure 5-35. [. . . ]