Acer Aspire 5741g Service Guide

							Chapter 3121
Replacing the Hard Disk Drive Module
1.Place the HDD in the HDD carrier.2.Replace the four (4) screws (two each side) to 
secure the carrier.
3.Insert the HDD, as indicated and lower it into 
place.4.Slide the HDD in the direction of the arrow to 
connect the interface. 
						

							122Chapter 3
Replacing the WLAN Module
1.Insert the WLAN Module into the WLAN socket.2.Replace the two (2) screws to secure the module.
3.Connect the two (2) Antenna cables to the module.
NOTE: The black cable connects to the upper terminal (MAIN) and the white cable to the lower terminal 
(MAIN). 
						

							Chapter 3123
Replacing the DIMM Modules
1.Insert the DIMM Module in place.2.Press down to lock the DIMM module in place.
3.Repeat steps for the second DIMM module if present. 
						

							124Chapter 3
Replacing the 3G Cover
1.Line up the left edge of the 3G cover with the device, before replacing completely.
2.Replace one (1) screw on the 3G Cover. 
						

							Chapter 3125
Replacing the Logic Lower Door
1.Replace the lower cover by first lining up the top edge as shown.
2.Secure two (2) screws on the lower cover. 
						

							126Chapter 3
Replacing the ODD Module
1.Press the bezel into the tray, bottom edge first, to 
secure it to the ODD Module.2.Place the bracket on the ODD module.
3.Secure the ODD bracket with the two (2) screws.
4.Push the ODD Module into the ODD bay until it is 
flush with the casing.5.Replace the one (1) screw to secure the Module. 
						

							Chapter 3127
Replacing the SD Dummy Card
1.Insert the SD Dummy Card into the slot as shown.2.Push until the card clicks into place and is flush with 
the casing. 
						

							128Chapter 3
Replacing the Battery
1.Slide and hold the battery release latch to the 
release position (1), insert the battery pack and 
press down (2).2.Slide the battery lock in the direction shown to 
secure the battery in place.
1
2 
						

							Chapter 4129
Troubleshooting
Common Problems
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or 
modified options can give false errors and invalid system responses.
1.Obtain the failing symptoms in as much detail as possible.
2.Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating 
the same operation.
3.Use the following table with the verified symptom to determine which page to go to.
4.If the Issue is still not resolved, see “Online Support Information” on page 243.
Symptoms (Verified)Go To
Power On Issue Page 130
No Display Issue Page 131
LCD Failure Page 133
Internal Keyboard Failure Page 133
TouchPad Failure Page 134
Internal Speaker Failure Page 134
ODD Failure Page 137
WLAN Failure Page 140
Thermal Unit Failure Page 140
Other Functions Failure Page 141
Intermittent Failures Page 142
Undermined Failures Page 142
Chapter 4 
						

							130Chapter 4
Power On Issue
If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not 
replace a non-defective FRUs:
Computer Shutsdown Intermittently
If the system powers off at intervals, perform the following actions one at a time to correct the problem.
1.Check the power cable is properly connected to the computer and the electrical outlet. 
2.Remove any extension cables between the computer and the outlet.
3.Remove any surge protectors between the computer and the electrical outlet. Plug the computer directly 
into a known good electrical outlet. 
4.Disconnect the power and open the casing to check the Thermal Unit (see “Thermal Unit Failure” on page 
140) and fan airways are free of obstructions.
5.Remove all external and non-essential hardware connected to the computer that are not necessary to 
boot the computer to the failure point.
6.Remove any recently installed software.
7.If the Issue is still not resolved, see “Online Support Information” on page 243.