Acer Aspire One Model Ao751 Service Guide

							Chapter 371
Replacing the SDD Module
IMPORTANT:The SSD module is only available on the Aspire one SSD computer SKU.
1.Place the SDD in the lower case.2.Replace the two screws to secure the module.
3.Connect the FFC cable to the module and close 
the cable latch.4.Connect the FFC cable to the mainboard and close 
the cable latch. 
						

							72Chapter 3
Replacing the USB/LED/Power/Card Reader Board
IMPORTANT:Before installing the USB board, take care of the following items:
•Check that LED isn`t broken
•SLIDER work smoothly 
1.Connect the cable to the board.2.Turn the board over and place it in the lower case.
3.Replace the three or four screws (depending on SKU) to secure the module.
4.Connect the FFC cable to the module and close 
the cable latch.5.Connect the FFC cable to the mainboard and close 
the cable latch.
HDD SKUSSD SKU 
						

							Chapter 373
Replacing the WLAN Board
Replacing the LCM Module
1.Insert the WLAN board in to the socket.2.Push the board down and replace the securing 
screw.
1.Place the LCM module on to the lower cover at a 90 degree angle.
IMPORTANT:Ensure all cables are clear of the hinges before replacing the LCM module.
2.Replace the four screws (two each side) to secure the LCM module to the lower cover. 
						

							74Chapter 3
3.Replace the antenna cables in the housing well, as shown.
4.Replace the two antenna cables.
NOTE: The following is the correct cable-color to 
connector designation: Black to MAIN (left) 
and White to AUX (right).5.Connect the LCD cable to the mainboard. 
						

							Chapter 375
Replacing the Upper Cover
IMPORTANT:While replacing the upper cover, take note of the following items:
•Check that the mainboard is tucked underneath the housing wells in the lower cover
•Check that the speaker cable is attached
•Check that the antenna cables are tucked inside the housing well and do not interfere with the card reader 
•Antenna cables must be secured to the chassis walls with the provided gasket tape
•Antenna cable on the right side must pass through the right side of hinge block
•Make sure that the 40-PIN Cable doesn`t interfere with the speaker module
1.Place the upper cover over the lower base, hinge 
side first.2.Set the Upper Cover down on the lower base and 
press down as shown.
3.Replace the five securing screws on the Upper 
Cover.4.Reconnect the touchpad FCC cable and close the 
cable latch. 
						

							76Chapter 3
Replacing the Keyboard
5.Turn the computer upside down and replace the eight securing screws on the bottom panel to attach the 
upper and lower covers.
6.Replace the two rubber foot pads.
1.Replace keyboard cable to the mainboard, and 
secure the locking latch.2.Turn the keyboard over and place the front edge 
first in the mounting.
3.Press down on the areas shown below to secure in place. 
						

							Chapter 377
Replacing the 3G cover
Replacing the Battery
1.Replace the 3G cover.2.Secure the two captive screws.
1.Slide and hold the battery release latch (1), insert 
battery in to the main unit (2). 2.Slide the battery lock/unlock latch to the lock 
position.
12 
						

							78Chapter 3 
						

							Chapter 479
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 161.
Symptoms (Verified)Go To
Power On Issue Page 80
No Display Issue Page 81
LCD Failure Page 84
Internal Keyboard Failure Page 84
TouchPad Failure Page 85
Internal Speaker Failure Page 85
Internal Microphone Failure Page 87
Rightside USB Failure Page 89
Power Button Failure Page 89
Other Functions Failure Page 90
Intermittent Failures Page 91
Undermined Failures Page 91
Chapter 4 
						

							80Chapter 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.Remove all external and non-essential hardware connected to the computer that are not necessary to 
boot the computer to the failure point.
5.Remove any recently installed software.
6.If the Issue is still not resolved, see “Online Support Information” on page 161.