Acer Extensa 570 Mantenance Manual

2
. Some versions of the IR/sound board contain two cables that connect
to the left side of the main board. Disconnect these cables, if present.
3
. Remove three screws that hold the IR/sound board to the unit (two
screws are located at the rear which secure a rear bezel and one
screw is in the front).
4
. Grasp the front left corner and front right corner of the board; remove
the board from the unit.
5
. Replacement of the IR/sound board assembly is essentially the 
reverse of Steps 1 through 4 above....

4
. Lift up on the front edge of the main board until it clears the battery
cavity; then pull the main board forward and out of the plastics.
5
.  Reassembly is the reverse of steps 1 through 4 above.
6.5.14  Removing/Replacing HDD Connector Board
To remove and replace the HDD connector board Assembly, perform the
following procedure:
1
. Remove the top case assembly as described in Paragraph 6.5.8.
2
. Remove the main board assembly as described in Paragraph 6.5.13.
3
. Turn the main board over and lay...

6.5.15Removing/Replacing Inverter Board
To remove and replace the inverter board assembly, perform the following
procedure:
c
Caution: Prior to removing the LCD bezel, ensure that the AC adapter
is disconnected and that all internal battery packs are removed. Fail-
ure to observe this precaution could expose you to dangerous high 
voltages.
1
. Remove the top case assembly as described in Paragraph 6.5.8. 
2
. Remove the main board assembly as described in Paragraph 6.5.13.
3
. Turn the main board over...

Appendix A
Self Test Error Messages
A.1Introduction
This appendix contains reference data useful in diagnosing and correcting self test
errors.
Table A-1  Self Test Error Messages
Error Message Corrective Action
CMOS Battery Bad Replace main board
CMOS Checksum Error Cycle power to Notebook; if
problem persists, replace main
board.
Disk Boot Failure Insert a system disk in drive A
Diskette Drive Controller Error or No
Controller PresentCycle power to Notebook; if
problem persists, replace main
board....

Error Message Corrective Action
Keyboard Interface Error Cycle Power to Notebook; if prob-
lem persists, check keyboard cable
conections to main board; if
problem persists, replace keyboard
and or main board.
Memory Size Mismatch Enter and then exit the System
Configuration Setup in the Setup
utility.
Missing operating system Correct the HDD type in the
configuration menu and reboot.
Refer to the specification label
pasted on the back side of the
notebook or attached to hard disk
drive.
Non-system disk...

Checkpoint
No.Description
D4h Normal POST start
FCh CMOS and BIOS ROM checksum test skip or
complete
01h 80286 register test in-progress
02h CMOS write/read test in-progress or failure
03h BIOS ROM checksum in-progress or failure
04h Programmable Interval Timer test in-progress or
failure
06h DMA page register write/read test in-progress or
fail
08h RAM refresh verification in-progress or failure
09h 1st 64K RAM test in-progress
0Ah 1st 64K RAM chip or data line failure - multi-bit
0Bh 1st 64K RAM...

Checkpoint
No.Description
D4h Normal POST start
35h Shutdown test in-progress or failure
36h Gate A20 failure
37h Unexpected interrupt in protected mode
38h RAM test in-progress or failure above address
0FFFFh
3Ah Interval timer channel 2 test in-progress or
failure
3Bh Time-Of-Day clock test in-progress or failure
3Ch Serial port test test in-progress or failure
3Dh Parallel port test test in-progress or failure
3Eh Math Coprocessor test in-progress or failure
50h Initial M1429
52h Dynamic Memory...

Checkpoint
No.Description
D4h Normal POST start
E0h Shadow PCI non-VGA option ROM
E1h Shadow PCI VGA option ROM to C000 segment
E3h Start to find PCI option ROM
E4h Begin to shadow PCI option ROM
1Fh Begin to configures PCI VGA devices
D1h Allocate Space for option ROM
       
Error  Messages 
A-5 

B
PC-Doctor Diagnostics
B.1Introduction
The Extensa Series Notebooks are shipped with PC-Doctor, a powerful diagnostics
tool that can help you determine the hardware configuration of a local or remote
system, benchmark its performance, analyze the performance of all subsystems,
and perform a suite of interactive and non-interactive tests on attached devices
(such as printers, joystick devices, SVGA monitors, SCSI devices, CD-ROM drives).
The test results are stored in a log which can be printed out (by...

B.3Keyboard Navigation
The keys shown in Table B-1 can be used to navigate through the PC-Doctor menus:
Table B-1  PC-Doctor Key Assignments
In addition, when you select All Tests
 from the Diagnostics menu, the Test
Selection
 Menu that appears uses the keys listed in Table B-2:
Table B-2  Test Selection Menu Special Keys
B.4Mouse Navigation
You can also use a mouse with the user interface.  Use the left mouse button to
choose objects (menu entries and action codes in square brackets).  Use the right...