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.
Note
: Ensure that the I/O port address switch settings on the original board
match the setting of the replacement board (refer to Figure 5-3 in Section 5).
6.5.11Removing/Replacing the Power Supply Board
To remove and replace the Power Supply Board, perform the following
procedure:
1
. Remove the Top Case Assembly as described in Paragraph 6.5.8
2
. Remove the holding screw on the left side of the board.
3
. Firmly grasp the board and use a side-to-side rocking motion while 
lifting up on the board.
4
. When reinstalling the Power Supply Board, ensure that the plastic 
cap that rests on top of the Closed Cover Switch has the slanted
surface facing the front of the Notebook.
6.5.12Removing/Replacing the CMOS Battery
To remove and replace the CMOS battery, use the following procedure.
n
Note: 
Replacement of the CMOS battery will result in the loss of customer -
definable settings. Replace CMOS battery only if the battery is defective.
1
. Remove the top case assembly as described in Paragraph 6.5.8. 
2
. Disconnect the battery cable from the main board; lift the battery 
from the base.
3
. Reinstall replacement battery.
6.5.13Removing/Replacing the Main Board
To remove and replace the main board assembly, perform the following
procedure:
1
.  Remove the top case assembly as described in Paragraph 6.5.8.
2
.  Using a 5 mm hexdriver, remove the four hex standoffs (shortest is
located next to the PS/2 connector and the longest is located at the
rear of the unit).
3
.  Remove the four Phillips head screws securing the main board to the
base plastics.
 
Field Service   6-13   
						

							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 on a flat surface.
4
. Using a small Phillips screwdriver, remove the two screws securing 
the HDD connector board to the main board.
5
. Replacement is the reverse of Steps 1 through 4.
New P/S
Board
Remove all other board 
assemblies; then remove four 
Hex Standoffs and four screws. 
Main Board
Assembly
Figure 6-4   Replacing the Main Board Assembly
 
6-14 
   Field Service 
						

							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 and lay on a flat surface.
4
. Unplug the speaker cable assembly connected to the display interface
board.
5
. Remove the four rubber screw covers and the four screws beneath the
covers.
6
. Pull on the inside edges of the bezel to remove it starting with the
bottom of the bezel.
7
. Disconnect the connectors at the top and bottom of the inverter board.
8
. Use a small Phillips-head screwdriver to remove the two screws 
holding the inverter board to the plastics. Remove the inverter board.
9
. To replace the inverter board, reverse Steps 1 through 8.
 
Field Service   6-15   
						

							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.
Diskette Drive Error Insert Diskette and retry; if
problem persists, replace drive.
Diskette Drive Type Mismatch Press Ctrl-Alt-Esc 
to reconfigure
the system.
Equipment Configuration Error Press Ctrl-Alt-Esc
 to reconfigure
the system.
Hard Disk 0 Error Cycle power to Notebook; if
problem persists, replace main
board and/or hard drive.
Hard Disk 0 Extended Type Error. Cycle power to Notebook; if
problem persists, replace hard
drive.
Insert system diskette and press key to
rebootInsert a system disk in drive A
I/O Parity Error Cycle power to Notebook; if
problem persists, replace main
board.
Keyboard Error or No Keyboard 
ConnectedCycle power to Notebook; if
problem persists, check keyboard
cable conections to main board; if
problem persists, replace keyboard
and or main board.
Error  Messages 
A-1 
						

							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 or disk error. Replace
and strike any key when readyRemove disk in drive A and press
any key
Pointing Device Error Cycle Power to Notebook; if
problem persists, check cable
connections from glidepad board to
main board; if problem persists,
replace glidepad board; if problem
persists, replace main board.
Pointing Device Interface Error Cycle Power to Notebook; if
problem persists, open up the
notebook and check the glidepad
cabling
Protected Mode Test Fail Cycle power to Notebook
RAM BIOS Bad Cycle power to Notebook
RAM Parity Error Cycle power to Notebook; if
problem persists, replace main
board and/or DIMM module (if
used)
Real-T ime Clock Error Press Ctrl-Alt-Esc 
to reconfigure
the system.
Video RAM BIOS Bad Cycle power to Notebook; if
problem persists, remove and
replace the main board.
Table A-2 POST Checkpoint List
     
A-2 Error  Messages 
						

							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 odd/even logic failure
0Ch 1st 64K RAM address line failure
0Dh 1st 64K RAM parity test in-progress or failure
10h 1st 64K RAM chip or data line failure bit 0
20h Slave DMA register test in-progress or failure
21h Master DMA register test in-progress or failure
22h Master interrupt mask register test in-progress
or fail
23h Slave interrupt mask register test in-progress or
fail
25h Interrupt vector loading in-progress
27h Keyboard controller test in-progress or failure
28h CMOS power -fail and checksum checks in-
progress
29h CMOS config info validation in-progress
2Bh Screen memory test in-progress or failure
2Ch Screen initialization in-progress or failure
2Dh Screen retrace tests in-progress or failure
2Eh Search for video ROM in-progress
30h Screen believed operable
34h Timer tick interrupt test in-progress or failure
       
Error  Messages 
A-3 
						

							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 Configuration and check
external Cache size
53h Shadow BIOS
54h Perform PCI device initialization
55h Check CMOS checksum
56h Check CMOS config against actual
57h Enable/disable enternal cache
5Fh Initial PnP device nodes
90h Enable/disable external cache
70h For PCI
71h For PCI
72h For PCI
73h For PCI
74h For PCI
75h For PCI
76h Begin PCI devices initialization
77h Configures PCI VGA devices
78h Except VGA
79h Begin PCI service routines
7Ah PCI Option ROM initialization
     
A-4 Error  Messages 
						

							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 pressing F2
) or
saved in a disk file (by pressing F3
).
Features of the diagnostic program are accessed through a series of pull-down
menus and basic keyboard keys (cursor keys to move highlighted pointer, Enter
 key
to select a highlighted feature, Esc
 key to cancel a function and move back one
level.)
PC-Doctor is typically user friendly but if you don’t understand a feature,
context-sensitive help information is available at any time by pressing the F1
function key; pressing the F1
 function key twice accesses the online Technical
Reference Manual for PC-Doctor. 
A powerful set of utilities within PC-Doctor (that can be run locally or remotely)
simplify the task of determining system configuration data, allocating and using
system memory, IRQ and DMA use, what device drivers are installed, what COM
and LPT ports are assigned and what ports are available, identifying partitioning
data for fixed disk drive(s), determining the VGA setup information, reading the
software interrupts/interrupt vectors, etc.
B.2Starting PC-Doctor
PC-Doctor comes pre-installed on your Extensa Series Notebook Computer. To run
the utility, reboot your computer.
The system continues the boot process and automatically displays the PC-Doctor
Diagnostics main menu.
PC-Doctor Diagnostics 
B-1 
						

							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
mouse button as you would the Esc 
key to take you back to your previous step.
Click on the ?
 in the upper left corner of the screen for context-sensitive help
Menus.
Key Description
Cursor Keys Moves the highlighted pointer.
Enter
Selects the highlighted option.
Esc
Cancels current function and goes back one
step.
F1Activates context-sensitive help.
F1 
(twice)Activates the online documentation.
PageUp/PageDn
Moves the screen one page at a time
F2Prints the log.
F3 Saves the log to a file.
Key Description
Space Bar Enables/Disables the selected test.
Enter
Enables/Disables the selected test.
F2Activates Test Options Menu
F5
Runs the selected tests.
F10Disables all tests.
B-2  PC-Doctor Diagnostics