IBM ThinkPad R40 2681 Hardware Maintenance Manual

Also see for ThinkPad R40: Special instructions User guide User manual Setup guide Hardware Maintenance Manual

Contents

ThinkPad R40Product overview . . . . . . . . . . . . 45Specifications . . . . . . . . . . . . 45Status indicators . . . . . . . . . . . 48FRU tests . . . . . . . . . . . . . 50Fn key combinations . . . . . . . . . . 52Symptom-to-FRU index . . . . . . . . . . 53Numeric error codes . . . . . . . . . . 53Error messages . . . . . . . . . . . 56Beep symptoms . . . . . . . . . . . 57No-beep symptoms . . . . . . . . . . 57LCD-related symptoms . . . . . . . . . 58Intermittent problems . . . . . . . . . . 59Undetermined problems . . . . . . . . . 59FRU replacement notices . . . . . . . . . 60Screw notices . . . . . . . . . . . . 60Retaining serial numbers . . . . . . . . . 61Restoring the serial number of the system unit 61Retaining the UUID . . . . . . . . . 61Removing and replacing a FRU . . . . . . . . 631010 Battery pack . . . . . . . . . . . 641020 Ultrabay Plus device . . . . . . . . 651030 Hard-disk drive . . . . . . . . . . 661040 DIMM . . . . . . . . . . . . 681050 Mini PCI adapter . . . . . . . . . 701060 Keyboard . . . . . . . . . . . 731070 Backup battery . . . . . . . . . . 811080 Optical storage in the fixed bay . . . . . 821090 PC Card slot assembly . . . . . . . 851100 Hinge cover . . . . . . . . . . . 871110 Communication daughter card (CDC) . . . 88Modem daughter card (MDC) . . . . . . 89IBM Integrated Bluetooth with 56K Modem(BMDC) . . . . . . . . . . . . 921120 Fan assembly . . . . . . . . . . 941130 CPU . . . . . . . . . . . . . 951140 Bluetooth antenna assembly . . . . . . 971150 LCD assembly . . . . . . . . . . 981160 Keyboard bezel . . . . . . . . . 1031170 Speaker assembly and microphone cable 1081180 System board . . . . . . . . . . 1091190 Hard-disk drive slot . . . . . . . . 1162000 Ultrabay Plus guide rail . . . . . . . 1172010 I/O Bracket . . . . . . . . . . . 1192020 LCD front bezel . . . . . . . . . 1202030 Inverter card . . . . . . . . . . 1212040 LCD panel and LCD cable assembly . . . 1222050 Antenna assembly, hinges, and LCD cover 124Locations . . . . . . . . . . . . . . 127Front view for 2681, 2682, 2683, 2722, 2723, 2724 127Rear view for 2681, 2682, 2683, 2722, 2723, 2724 129© Copyright IBM Corp. 2004 43