Acer Aspire 9300 Service Guide

72Chapter 3
LCD Disassembly
1.Remove the eight rubber caps on the LCD bezel and release the eight screws securing the 
LCD bezel.
2.Detach the LCD bezel from the LCD module as shown.
3.Release the screw holding the inverter board.
4.Disconnect the inverter board cables as shown and remove the inverter board. 

Chapter 373
5.Release the four screws securing the LCD panel.
6.Detach the LCD panel carefully and reverse it as shown.
7.Tear off the tapes holding the LCD panel cable carefully then disconnect the LCD panel.
8.Remove the antenna from the LCD cover. 

74Chapter 3
9.Release the four screws securing the left LCD bracket then remove the left LCD bracket.
10.Repeat the anterior step to remove the right LCD bracket. 

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11 .Release the screw holding the CCD module and carefully pull the CCD module cable and LCD 
cable through the latch bar and LCD cover.
12.Remove the CCD module cap.
13.Remove the CCD module ring.
14.Push the CCD module upper case a little bit.
15.Then Separate the lower case from the upper case.
16.Release the two screws holding the CCD module board the detach the CCD module board. 

76Chapter 3 

Chapter 476
Please use the following procedures 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 may occur errors or invalid responses.
1.
Obtain the detailed fail sympto ms as many as possible.
2.Verify the symptoms by attempti ng to recreate, running the diagnostic tests or repeating the 
same operation.
3.Disassemble and assemble the unit without any power sources.
4.If any problem occurs,...

77Chapter 4
System Check Procedures
External Diskette Drive Check
Do the following procedures to isolate the possible effects from a controller, driver, or diskette. A 
writable, diagnostic diskette is required.
NOTE:  Make sure that the diskette does not have more t han one label attached. Multiple labels may cause 
damage to the drive or make the drive fail.
1.
Boot from the diagnostic diskette and start the diagnostic programs.
2.See if FDD test is passed as the programs run the FDD test.
3.Follow...

Chapter 478
TNumeric keypad
TExternal keyboard
If any of these devices do not function, reconnect the cable and repeat the anterior procedures.
Memory Check
Follow the procedures below to correct the memory errors.
1.Boot from the diagnostic diskette and start the diagnostic programs.
2.Go to the diagnostic memory in the test items.
3.Press F2 in the test items.
4.Follow the instructions  in the message window.
NOTE: Make sure that the DIMM is correctly inserted into the connector. A wrong connection...

79Chapter 4
Check the Battery Pack
Follow the procedures below to check the battery pack.
From software, this helps to identify the problem is on recharging or discharging.
1.Check the Power Management in Control Panel.
2.Then confirm that the parameters shown in the screen for Current Power Source and Total 
Battery Power Remaining are correct.
3.Repeat the step 1 and step 2 for both battery and adaptor.
From hardware, this helps to identify whether you should replace the battery pack or not.
1.Power...

Chapter 480
3.If the PS/2 mouse does not work, then click if the main board to switch board FPC is connected 
properly.
4.If the main board to switch board FPC is con nected correctly, then check if the FFC on the 
touch pad PCB is connected properly.
5.If the FFC on the touch pad PCB is connected co rrectly, check if LS851 JP1 Pin6 = 5V are 
pules. If yes, then replace switch board . If not, then go to the next step.
6.Replace the touch pad PCB.
7.If the touch pad still does not work, then replace the...