Lenovo ThinkPad 380 HMM ThinkPad 380XD,385XD (May 1998) - Page 51
Beep Symptoms
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Beep Symptoms Symptom / Error Continuous beeps. One beep and a blank, unreadable, or flashing LCD. One beep, and the message "Unable to access boot source" appears. One long and two short beeps, and a blank or an unreadable LCD. One long beep followed by four short beeps each time the power switch is operated. (System cannot turn on due to low battery voltage.) One beep every second. (System is shutting down due to low battery voltage.) Two short beeps with error codes. Two short beeps and a blank screen. FRU / Action in Sequence System board 1. Reseat the LCD connector 2. LCD assembly 3. System board 1. Boot device 2. System board 1. System board 2. LCD assembly Connect the AC Adapter or install a fully charged battery. Connect the AC Adapter or install a fully charged battery. (Allow the system to completely shut down before changing the battery.) POST error. See "Numeric Error Codes" on page 38. System board No Beep Symptoms Symptom / Error No beep, power-on indicator not on, and a blank LCD during POST. No beep, power-on indicator on, and a blank LCD during POST. No beep, power-on indicator on, and a blinking cursor only during POST. No beep during POST but the system runs correctly. FRU / Action in Sequence 1. Go to "Power Systems Checkout" on page 29. 2. DC/DC card 3. System board 4. CPU Card 5. Check the power outlet 1. DC/DC card 2. System board 3. CPU Card 1. DC/DC card 2. CPU Card 3. System board 1. Turn the volume up and check the speaker. 2. Speaker 3. System board IBM ThinkPad 380XD, 385XD (2635) 43