Acer 7730A manual 149, Sound, Power management

	Symptom / Error	Action in Sequence
	The notebook doesn’t turn off.	• Test the power source (battery pack and power
		adapter). See “Testing the power system” on page 138.
		• Press and hold the power button for more than four
		seconds.
		• Test or replace the system board.
	The battery can’t be charged.	• Test the battery pack. See “Check the battery pack” on
		page 139.
		• Replace the battery pack.
		• Test or replace the system board.
ExpressCard (NewCard)

Symptom / Error	Action in Sequence
The notebook cannot detect the	• Test or replace the ExpressCard assembly. See
ExpressCard	“Replacing the ExpressCard (NewCard) assembly” on
	page 112.
	• Test or replace the system board.
ExpressCard slot pin is damaged.	• Test or replace the ExpressCard assembly. See
	“Replacing the ExpressCard (NewCard) assembly” on
	page 112.

Memory

Symptom / Error		Action in Sequence
Memory count (size) appears different	• Run “Load Setup Defaults” using the BIOS Setup
from actual size.		Utility, then reboot the notebook.
	•	Test or replace the SO-DIMM.
	•	Test or replace the system board.

Sound

Symptom / Error	Action in Sequence
No sound comes from the notebook	• Reinstall the audio driver.
when running Windows multimedia	• Test or replace the speakers.
programs.	• Test or replace the system board.
The internal speakers make noise or emit	• Test or replace the speakers.
no sound.	• Test or replace the system board.

Power management

Symptom / Error	Action in Sequence
The notebook will not hibernate.	• <Athena: Why are they looking at a spec?> See “Save
	to Disk (S4)” on page 33.
	• Test or replace the keyboard (if control is from the
	keyboard).
	• Test or replace the hard disk drive.
	• Test or replace the system board.

Chapter 4: Troubleshooting 149