IBM ThinkPad X40 Hardware Maintenance Manual

Also see for THINKPAD X40: Maintenance manual Install guide Supplementary guide User manual Information

Contents

FRU testsThe following table shows the test for each FRU.FRU Applicable testSystem board 1. Diagnostics --> CPU/Coprocessor2. Diagnostics --> Systemboard3. If the docking station or the port replicator isattached to the ThinkPad computer, undockit. Place the computer on a horizontalsurface, and run Diagnostics --> OtherDevices --> IBM HDD Active ProtectionTest.Note: Do not apply any physical shock to thecomputer while the test is running.Power Diagnostics --> Other Devices --> IBM ACAdapter, IBM Battery 1 (IBM Battery 2)LCD unit 1. Diagnostics --> Video Adapter2. Interactive Tests --> VideoModem, MDCor BMDC1. Make sure the modem is set up correctly.2. Replace the modem jack and the modemcard in turn, and run the following test inDiagnostics --> Communication:a. Conexant Smart Modem Interruptb. Conexant Smart Modem DialtoneAudio 1. Interactive Tests --> Internal Speaker2. Diagnostics --> Other Devices --> AnalogDevices AC97 CODEC TestSpeaker Interactive Tests --> Internal SpeakerPC Card slots 1. Diagnostics --> Systemboard --> PCMCIA2. Insert a PC Card Wrap Plug into every PCCard Slot, and run Diagnostics -->Systemboard --> PCMCIA External LoopKeyboard 1. Diagnostics --> Systemboard -->Keyboard2. Interactive Tests --> KeyboardTrackPoint orpointing deviceIf the TrackPoint does not work, check theconfiguration in the ThinkPad Configurationprogram. If the TrackPoint is disabled, selectEnable to enable it.After you use the TrackPoint, the pointer maydrift on the screen for a short time. This driftcan occur when a slight, steady pressure isapplied to the TrackPointing Stick. Thissymptom is not a hardware problem. If thepointer stops after a short time, no serviceaction is necessary.If enabling the TrackPoint does not correct theproblem, continue with the following:v Interactive Tests --> Mouse(continued)Product overview52 ThinkPad X40 (2369, 2370, 2371, 2372, 2382, 2386)