Acer Aspire 5600 Service Guide

							
83Chapter 3
3.Connect the wireless antenna to the wireless card.
Reassembling the HDD
1.Place the HDD back to the main unit.
2. Secure the HDD with one screw.
3. Place the HDD cover back to the main unit.
4. Secure the HDD cover with the two screws.
Reassembling the heatsink cover & Battery
1.Aim the three hooks to the holes on the rear panel and place the heatsink cover back to the lower case.
2. Secure the heatsink co ver with six screws. 
						

							
Chapter 384
3.Place the battery back.
4. This completes the main unit reassembly. 
						

							
85Chapter 3 
						

							
Chapter 485
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model.   Non-Acer products, prototype cards, or modified 
options can give false errors  and invalid system responses.
1. Duplicate symptom and obtain the failing symptoms in as much detail as possible.
2. Distinguish symptom. Verify the symptoms by attempti ng to re-create the failure by running the diagnostic 
test or by repeating the same operation.
3. Disassemble and assemble the unit without any power sources.
4. If any problem occurs, you can perform visual inspecti on before you fellow this chapter’s instructions. You 
can check the following:
power cords are properly connected and secured;
there are no obvious shorts or opens;
there are no obviously burned or heated components;
all components appear normal.
5. Use the following table with the verified symptom to determine which page to go to.
Symptoms (Verified)Go To
Power failure. (The power indicator does not go 
on or stay on.) “Power System Check” on page 87.
POST does not complete. No beep or error 
codes are indicated. “Power-On Self-Test (POST) Error Message” on 
page 89
“Undetermined Problems” on page 101
POST detects an error and displayed messages 
on screen. “Error Message List” on page 90
Other symptoms (i.e. LCD display problems or 
others). “Power-On Self-Test (POST) Error Message” on 
page 89
Symptoms cannot be re-created (intermittent 
problems). Use the customer-reported symptoms and go to 
“Power-On Self-Test (POST) Error Message” on 
page 89
“Intermittent Problems” on page 100
“Undetermined Problems” on page 101
Troubleshooting
Chapter 4 
						

							
86Chapter 4
System Check Procedures
External Diskette Drive Check
If an error occurs with the internal diskette drive, reconnect the diskette connector on the system board.
If the error still remains:
1. Reconnect the external diskette drive/DVD-ROM module.
2. Replace the external diskette drive/CD-ROM module.
3. Replace the main board.
External CD-ROM Drive Check
Do the following to isolate the problem to a controller,  drive, or CD-ROM. Make sure that the CD-ROM does 
not have any label attached to it. The label can caus e damage to the drive or can cause the drive to fail.
Do the following to select the test device:
1. Boot from the diagnostics diskette and start the diagnostics program.
2. See if CD-ROM Test is passed when  the program runs to CD-ROM Test.
3. Follow the instructions in the message window.
If an error occurs, reconnect the connector on  the System board. If the error still remains:
1. Reconnect the external diskette drive/CD-ROM module.
2. Replace the external diskette drive/CD-ROM module.
3. Replace the main board.
Keyboard or Auxiliary Input Device Check
Remove the external keyboard if the internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected  character appears, make sure that the flexible cable 
extending from the keyboard is correctly se ated in the connector on the system board.
If the keyboard cable connection is  correct, run the Keyboard Test.
If the tests detect a keyboard problem, do the following  one at a time to correct the problem. Do not replace a 
non-defective FRU:
1. Reconnect the keyboard cables.
2. Replace the keyboard.
3. Replace the main board.
The following auxiliary input devices are supported by this computer:
TNumeric keypad
TExternal keyboard
If any of these devices do not work, reconnect the  cable connector and repeat the failing operation. 
Memory check
Memory errors might stop system operations, show  error messages on the screen, or hang the system.
1. Boot from the diagnostics diskette and start the doa gmpstotics program (please refer to main board.
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 fully installed into  the connector. A loose connection can cause an error. 
						

							
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Power System Check
To verify the symptom of the problem, power on the computer using each of the following power sources:
1. Remove the battery pack.
2. Connect the power adapter and check that power is supplied.
3. Disconnect the power adapter and install the charged ba ttery pack; then check that power is supplied by 
the battery pack.
If you suspect a power problem, see the approp riate power supply check in the following list:
T“Check the Battery Pack” on page 88 
						

							
88Chapter 4
Check the Battery Pack
To check the battery pack, do the following:
From Software:
1.Check out the Power Management in control Panel
2. In Power Meter, confirm that if the parameters sh own in the screen for Current Power Source and Total 
Battery Power Remaining are correct.
3. Repeat the steps 1 and 2, for both battery and adapter.
4. This helps you identify first the prob lem is on recharging or discharging.
From Hardware:
1. Power off the computer. 
2. Remove the battery pack and measure  the voltage between battery terminals 1(+) and 6(ground). See the 
following figure
3. If the voltage is still less than 7.5 Vdc  after recharging, replace the battery. 
To check the battery charge operation, use a discharged battery pack or a battery pack that has less than 50% 
of the total power remaining when installed in the computer. 
If the battery status indicato r does not light up, remove the battery pack and let it return to room temperature. 
Re-install the battery pack.
If the charge indicator still does not li ght up, replace the battery pack. If the charge indicator still does not light 
up, replace the DC/DC charger board. 
Touchpad check
If the touchpad doesn’t work, do the following actions  one at a time to correct the problem. Do not replace a 
non-defective FRU:
1. After rebooting, run Tracking Pad PS2 Mode Dr iver. For example, run Syn touch driver.
2. Run utility with the PS/2 mouse function  and check if the mouse is working.
3. If the PS/2 mouse does not work,  then check if the main board to switch board FPC is connected O.K.
4. If the main board to switch board FPC is conne cted well, then check if the FCC on touch pad PCB 
connects properly.
5. If the FFC on touch pad PCB connects properly, then check if LS851 JP1 Pin6=5V are pulese. If yes, then 
replace switch board. If  no, then go to next step.
6. Replace touch pad PCB.
7. If the touch pad still does not work, then replace FPC on Track Pad PCB.
After you use the touchpad, the pointer drifts on the scr een for a short time. This self-acting pointer movement 
can occur when a slight, steady pressure is applied to the touchpad pointer. This symptom is not a hardware 
problem. No service actions are necessary if the  pointer movement stops in a short period of time. 
						

							
Chapter 489
Power-On Self-Test (POST) Error Message
The POST error message index lists the error message and their possible causes. The most likely cause is 
listed first.
NOTE: Perform the FRU replacement or actions in the s equence shown in FRU/Action column, if the FRU 
replacement does not solve the proble m, put the original part back in the computer. Do not replace a 
non-defective FRU.
This index can also help you determine the next possible FRU to be replaced when servicing a computer.
If the symptom is not listed, se e “Undetermined Problems” on page 101.
The following lists the error messages that the BIOS di splays on the screen and the error symptoms classified 
by function. 
NOTE:  Most of the error messages occur  during POST. Some of them display information about a hardware 
device, e.g., the amount of memory installed. Others  may indicate a problem with a device, such as the 
way it has been configured.
NOTE:  If the system fails after you make changes in the B IOS Setup Utility menus, reset the computer, enter 
Setup and install Setup defaults or correct the error.  
						

							
90Chapter 4
Index of Error Messages
Error Message List
Error MessagesFRU/Action in Sequence
Struck Key See “Keyboard or Auxiliary Input Device Check” on page 86
System CMOS checksum bad - Default 
configuration used RTC battery
Run BIOS Setup Utility to reconfigure system, then reboot system.
Real time clock error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot 
system.
Main board
Previous boot incomplete - Default configuration 
used “Load Default Settings” in BIOS Setup Utility.
RTC battery
Main baord
Invalid System Configuration Data “Load Default Settings” in BIOS Setup Utility. Main board
Operating system not found Enter Setup and see if  fixed disk and drive A are properly identified.
Dikette drive
Hard disk drive
Main board 
						

							
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Error Message List
No beep Error MessagesFRU/Action in Sequence
Power-on indicator turns off and LCD is blank. Power s ource (battery pack and power adapter.) See “Power 
System Check” on page 87
Ensure every connector is connected tightly and correctly.
Reconnect the DIMM.
Main board.
Power-on indicator turns on and LCD is blank. Power s ource (battery pack and power adapter.) See “Power 
System Check” on page 87
Reconnect the LCD connector
Hard disk drive
LCD cable
LCD inverter
LCD
Main board
Power-on indicator turns on and LCD is blank. 
But you can see POST on an external CRT. Reconnect the LCD connectors.
LCD cable
LCD inverter
LCD
Main board
Power-on indicator turns on and a blinking cursor 
shown on LCD during POST. Ensure every connector is connected tightly and correctly.
Main board