Acer 4740ZG, 4740G manual Speaker-Related Symptoms Symptom / Error Action in Sequence

Speaker-Related Symptoms

Symptom / Error	Action in Sequence
No sound comes from the system when	 Reinstall the audio driver.
running Windows multimedia programs.	 Test or replace the speakers.
	 Test or replace the mainboard.
Internal speakers make noise or emit no	 Test or replace the speakers.
sound.	 Test or replace the mainboard.
Power Management-Related Symptoms
Symptom / Error	Action in Sequence
System will not enter hibernation.	 Test or replace the keyboard (if control is from the
	keyboard).
	 Test or replace the hard disk drive.
	 Test or replace the mainboard.
System doesn't enter hibernation mode and	 Press <Fn> + <O> and see if the system enters
four short beeps every minute.	hibernation mode.
	 Test or replace the touchpad
	 Test or replace the keyboard
	 Check the hard disk connection to the mainboard.
	 Test or replace the hard disk drive.
	 Test or replace the mainboard.
System doesn’t enter standby mode after	Test or replace the mainboard.
closing the LCD.
System doesn't resume from hibernation	 Check the hard disk connection to the mainboard.
mode.	 Test or replace the hard disk drive.
	 Test or replace the mainboard.
System doesn't resume from standby mode	Test or replace the mainboard.
after opening the LCD.
Battery fuel gauge in Windows doesn’t go	 Remove battery pack and let it cool for 2 hours.
higher than 90%.	 Refresh battery (use only battery until the notebook turns
	off, then charge the battery).
	 Test or replace the battery pack.
	 Test or replace the mainboard.
System hangs intermittently.	 Reconnect the hard disk drive and external optical drive.
	 Check the hard disk connection to the mainboard.
	 Test or replace the mainboard.
Peripheral Devices-Related Symptoms
Symptom / Error	Action in Sequence
System configuration does not match the	 Run “Load Setup Defaults” using the BIOS Setup Utility,
installed devices.	then reboot the system.
	 Reconnect the hard disk drive and external optical drive.
External display does not work correctly.	 Press <Fn> + <F5> repeatedly to switch between LCD,
	external display, and both displays.
	 Test or replace the mainboard.
USB does not work correctly	 Test or replace the USB board.
	 Test or replace the mainboard.

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