Assessments - 3, GPA: 3.7 ( )

Fabricante : IBM Arquivo Tamanho: 6.56 mb Arquivo Nome : Língua de Ensino:

operated. (System cannot power-on due to low battery voltage.) One beep every second. Connect the AC Adapter (System is shutting down or install a fully charged due to low battery voltage.) battery. (Allow the system to complete shutdown before changing the battery.) 204 IBM Mobile Systems - ThinkPad HMM Volume 3 Symptom / Error FRU / Action in Sequence Two short beeps with error codes. POST error. See “Numeric Error Codes” on page 199. Two short beeps with blank screen. System board No Beep Symptoms Symptom / Error FRU / Action in Sequence No beep, power-on indicator not on, and a blank LCD during POST. 1. Go to “Power Systems Checkout” on page 193. 2. System board 3. Subcard 4. Power sources No beep, power-on indicator on, and a blank LCD during POST. 1. System board 2. Subcard No beep, power-on indicator on, and a blinking cursor only during POST. 1. System board 2. Subcard No beep during POST but system runs correctly. 1. Turn the volume up and check the speaker. 2. Speaker 3. System board 4. Subcard LCD-Related Symptoms Important The LCD for the notebook computer contains over 921 000 thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of dots satisfies the following condition: . The number of missing, discolored, or lighted dots in any background is 21 or more. Symptom / Error FRU / Action in Sequence No beep, power-on indicator on, and a blank LCD during POST. 1. System board 2. Subcard ThinkPad 380, 380D, 385, 385D (2635) 205 Symptom / Error FRU / Action in Sequence . LCD backlight not working . LCD too dark . LCD brightness cannot be adjusted (TFT) . LCD contrast cannot be adjusted (STN) 1. Reseat the LCD connectors. 2. LCD unit 3. Subcard . LCD screen unreadable . Characters missing pels . Screen abnormal . Wrong color displayed 1. See important note for “LCD-Related Symptoms.” 2. Reseat all LCD connectors. 3. LCD unit 4. System board 5. Subcard LCD has extra horizontal or vertical lines displayed. LCD unit Keyboard/TrackPoint III-Related Symptoms Symptom / Error FRU / Action in Sequence Keyboard (one or more keys) does not work. 1. Reseat the keyboard cable on the subcard. 2. Keyboard 3. Subcard 4. System board TrackPoint III does not work. 1. Reseat the keyboard cable on the subcard. 2. Go to “Keyboard/TrackPoint III-Related Symptoms.” 3. Keyboard 4. Subcard 5. System board Pointer moves automatically or does not work correctly. 1. See “Keyboard/TrackPoint III-Related Symptoms.” Indicator-Related Symptoms Symptom / Error FRU / Action in Sequence Indicator incorrectly remains off or on, but system runs correctly. 1. Subcard 2. System board Battery power status indicator blinks from green, yellow, to orange. 1. Check that a correct battery is installed. 2. Battery pack 3. Subcard 4. System board 206 IBM Mobile Systems - ThinkPad HMM Volume 3 Power-Related Symptoms Symptom / Error FRU / Action in Sequence Power shuts down during operation. 1. Go to “Power Systems Checkout” on page 193. 2. Battery pack 3. Remove the battery pack and let it cool for two hours. 4. Subcard 5. Power sources The system will not power-off. (See “Power Shutdown Switch” on page 188.) 1. Press the power shutdown switch. 2. System board Function/Audio-Related Symptoms Symptom / Error FRU / Action in Sequence The system does not suspend or resume when the LCD is opened or closed. 1. Go to “Suspend Mode” on page 197, and check that the computer can enter suspend mode. 2. Boot an operating system and press Fn+F4. If the computer enters suspend mode, suspect that the application program is not working properly. 3. Subcard 4. System board Battery Fuel-Gauge does Go to “Checking the not go higher than 90%. Battery Pack” on page 195 and see the note. Memory count (size) appears different from actual size. Go to “Memory Checkout” on page 190. System configuration does not match the installed devices. Go to “Checking the Installed Devices List” on page 213. System hangs intermittently. Go to “Intermittent Problems” on page 209. ThinkPad 380, 380D, 385, 385D (2635) 207 Peripheral-Device-Related Symptoms Symptom / Error FRU / Action in Sequence External display does not work correctly. 1. See “External Display Self-Test” in “Common Devices Checkout” section. Printer problems. 1. Run Printer Self-test. 2. Parallel port device 3. Cable 4. System board Serial or parallel port device problems. 1. Device 2. Device cable 3. System board Infrared-Related Symptoms Symptom / Error FRU / Action in Sequence Unable to communicate using the Infrared (IR) Port. 1. Make sure the setup for the IR is correct. 2. Make sure there are no fluorescent lights near the computer. The computer may receive optical noise from the fluorescent light. 3. Run the advanced diagnostic test. If an error occurs and a FRU code is displayed, replace the parts shown by the FRU code. Other...

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