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3. Tests and Diagnostics
3.5 Fan ON/OFF/Speed Test
The FAN test need the user sense the wind to judge whether the fan is working. And follow the
below procedures for this test:
The computer will let the fan be “ON” after any key pressed. Feel the wind or
listen the rotating sound to check whether the fan is working or not.
NOTE: Remember to approach fan outlet that is near left side of unit whether fan is “ON”.
The computer will stop the fan working after any key pressed. Feel the wind or
listen the sound to check if the fan is “OFF”.
The screen should display as below, indicating whether the test is passed or failed after the
question.
[CONFIDENTIAL]
Satellite L670/L675 / Pro L670 Series Maintenance Manual