User manual SONY VAIO VGN-FW590F

[. . . ] 4 Important notice for replacing a system board . 4 Strategy for replacing FRUs for CTO, CMV, and GAV 4 Product definition . 4 FRU identification for CTO, CMV, and GAV products . 5 Important information about replacing RoHS compliant FRUs . [. . . ] v If the problem persists, go to "Product overview" on page 34. Note: Noise from the ac adapter does not always indicate a defect. Checking operational charging To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature. If the charge indicator or icon still does not turn on, replace the battery pack. If the charge indicator still does not turn on, replace the system board. If it is still not charged, go to the next section. Checking the battery pack Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life. To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon. Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. 1100 PCI Express Mini Card for wireless LAN . 1110 PCI Express Mini Card for 802. 11 a/b/g/n wireless LAN . 1120 PCI Express Mini card for wireless WAN . 1160 Keyboard bezel assembly with speaker . 34 34 37 40 42 45 45 50 51 51 52 53 53 54 54 54 55 55 55 57 58 59 60 62 64 65 69 70 72 74 75 76 77 78 79 81 1170 Fan assembly . 93 1220 Magnesium frame with xD sub card . 94 1230 System board and PC Card/ExpressCard slots assembly . 102 2030 Bluetooth daughter card (BDC-2) . 103 2040 Wireless WAN antenna cable (MAIN) or wireless LAN 3rd antenna cable . 107 2060 LCD panel, LCD cable, and hinges . 108 2060 LCD rear cover and wireless LAN antenna cables . [. . . ] Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. [. . . ]