Acer Extensa 570 Mantenance Manual

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Caution: All boards, options and peripherals contain components that
are sensitive to static electricity. When handling any of these items,
protect against static electricity by using wrist or ankle grounding
straps and grounded working mats. When moving or storing items, use
the anti-static bags supplied with the items.
6.4Notebook Field-Replaceable Parts
and Assemblies
All members of the Extensa 57x Series Notebook Computers contain two
major assemblies including the Cover Display Assembly (upper half of
notebook computer) and the System Base Assembly (lower half of the
notebook). Each of these two assemblies contain FRUs as described in the
following subparagraphs.
6.4.1Cover-Display Assembly
As shown in Figure 6-1, the Cover -Display Assembly contains the LCD
screen, Power Inverter Board, Transfer Board and cables.
The Field-Replaceable Units (FRUs) within the Cover Display Assembly are
provided in Table 6-1.
Bezel (Removed
for Clarity)
Power Inverter
Board
LCD Cover
Transfer
Board
Bezel Nameplate
(not shown)Cables 
(not visible
in this view)
Figure 6-1   Cover Display Assembly FRUs
 
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							Table 6-1  Cover Display Assembly, Field-Replaceable Units (FRUs)
Item 
No.FRU Description TI Part No. Reference
Paragraph
No.
01 Inverter Board, TFT/DSSTN 9811310-0001 6.5.15
02 11.3, DSTN SVGA LCD Panel 9811312-0001 6.5.6
03 10.4 TFT SVGA LCD Panel 9811313-0001 6.5.6
04 11.3 DSTN SVGA Cable 9811314-0001 6.5.6
05 10.4 TFT SVGA Cable 9811315-0001 6.5.6
06 Display Interconnect Board, TFT 9804800-0001 6.5.6
07 Display Interconnect Board, DSSTN 9804024-0001 6.5.6
08 TFT Panel Transfer Board 9804801-0001 6.5.6
09 DSSTN Panel T ransfer Board 9804803-0001 6.5.6
10 Bezel, 11.3 DSSTN 9811320-0001 6.5.6
11 Bezel, TFT 10.4 9811321-0001 6.5.6
12 Bezel Nameplate, 570CD 9811322-0003 Ref
13 Bezel Nameplate, 575CD 9811322-0004 Ref
14 Bezel Nameplate, 570CDT 9811322-0005 Ref
15 Bezel Nameplate, 575CDT 9811322-0006 Ref
16 Hinge Covers 9805713-0001 Ref
 
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							6.4.2System Base Assembly
As shown in Figure 6-2, the System Base Assembly houses a variety of
field-replaceable subassemblies and components. The FRUs and paragraph
references for removal/replacement procedures are listed in Table 6-2.
Table 6-3 contains a listing of Customer (non-technical user) replaceable
units (CRUs) and associated TI Part numbers.
.
Keyboard Assembly
Glidepad Assembly
IR/Sound BoardPower Supply Board
Display Cable Interface
BoardMain Board
Inverter Board
Display Assembly
Floppy
Drive/CD-ROM
BayStatus LCD
Assembly
Display Assembly
Figure 6-2   Base Assembly FRUs
 
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							Table 6-2  Base Assembly, Field-Replaceable Units (FRUs)
Item 
No.FRU Description TI Part No.Ref. Para.
No.
1 100MHZ Main Board w/CPU 9811305-0001 6.5.13
2 Power Supply, CPU 9811317-0001 6.5.13
3 Sound\IR Board Assembly (Addr. Sel.) 9811306-0001 6.5.10
4 Power Supply Assembly 9804020-0001 6.5.11
5 HDD Board Assembly, Gold Contact 9804805-0002 6.5.14
6 Status LCD Board Assembly 9804808-0001 6.5.7
7 4X CD-ROM Kit 9803982-0002 6.5.2
8 6X CD-ROM Kit 9803982-0003 6.5.2
9 810 Million Byte HDD 9786285-8001 6.5.3
10 1200 Million Byte HDD  9786285-8002 6.5.3
11 FDD Module (W/O FDD) 9804818-0001 6.5.2
12 1.44 MB FDD 9804819-0001 6.5.2
13 US Keyboard Assembly 9804820-0001 6.5.5
14 UK Keyboard Assembly 9804820-0002 6.5.5
15 German Keyboard Assembly 9804820-0003 6.5.5
16 French Keyboard Assembly 9804820-0004 6.5.5
17 Spanish Keyboard Assembly 9804820-0005 6.5.5
18 Swiss Keyboard Assembly 9804820-0006 6.5.5
19 Italian Keyboard Assembly 9804820-0007 6.5.5
20 Portuguese Keyboard Assembly 9804820-0008 6.5.5
21 Swedish Keyboard Assembly 9804820-0010 6.5.5
22 Danish Keyboard Assembly 9804820-0012 6.5.5
23 Norwegian Keyboard Assembly 9804820-0013 6.5.5
24 Belgium Keyboard Assembly 9804820-0014 6.5.5
25 Finish Keyboard Assembly 9804820-0015 6.5.5
26 CPU, P54C-100, SPGA, 2.9V 9811733-0001 6.5.13
27 Glidepad Module 9804821-0001 6.5.9
 
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							Item 
No.FRU Description TI Part No.Ref. Para.
No.
26 Speaker Cable Assembly 9805705-0001 Ref
27 Cable, Button to Glide 9805706-0001 6.5.9
28 Cable, Main Board to Button 9805707-0001 6.5.9
29 Cable, Main Board to Sound Board (2) 9805708-0001 6.5.10
30 Cable, Main Board to Sound Board (4) 9805709-0001 6.5.13
31 Cable, Main Board to Status LCD 9805710-0001 6.5.13
32 Status LCD Cover W/Lens 9805715-0001 Ref
33 CMOS Battery 9805704-0001 6.5.12
34 Door Assembly, Expansion Connector 9805719-0001 Ref
35 Door Assembly, PCMCIA 9805719-0003 Ref
36 Door Assembly, CD/FDD 9805719-0004 Ref
37 Top Case Assembly 9811304-0001 Ref
Table 6-3  Notebook CRUs (Customer Replaceable Units)
Item
No.CRU Description TI Part No  Ref. Para.
No.
1 Internal Battery Pack, Ni-MH,
4200 mAH9803928-0003 6.5.1
2 8 MB RAM Module Kit 9809810-0001 6.5.7
3 16 MB RAM Module Kit 9804241-0001 6.5.7
4 32 B RAM Module Kit 9809811-0001 6.5.7
5 External Battery Charger 9803934-0001 Ref.
6 Full Function Port Replicator 9803936-0001 Ref.
7 Screw Covers 9805716-0001 Ref
8 Door Assembly,
VGA/Ser./Par.9805719-0002 Ref
 
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							6.5FRU Removal and Replacement
Procedures
The following paragraphs contain field service-level removal/replacement
procedures for the Notebook.
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Caution: Prior to removing any of the internal FRUs in the notebook,
remove the AC Adapter, battery, floppy and hard drives and all external
options installed on the notebook.
6.5.1Removing/Replacing the Notebook Battery
Pack
The procedure for removing and replacing the battery pack(s) is as follows:
1
. Turn off  the computer and disconnect the AC adapter and any 
external devices from the notebook.
2
.  Turn the notebook over and lay the notebook on a flat surface.
3
.  Locate the battery release button on the bottom of the notebook. 
Press the button in the direction of the arrow while sliding the
battery out of its battery bay.
n
Note
: Refer to Step 2 in Paragraph 6.5.2 for information on removing a sec-
ondary battery pack from the floppy drive cavity.
6.5.2Removing/Replacing the Floppy
Drive/CD-ROM
To remove and replace the Floppy Drive or CD-ROM Drive, perform the
following procedure:
1
.  Power the notebook off; disconnect the AC adapter from the notebook
(if attached) and remove the battery pack(s) as described in Paragraph
6.5.1.
2
. Locate the floppy release button. Press and hold the button in the
direction of the arrow while sliding the floppy drive (or other installed
device such as CD-ROM drive or battery) out of the notebook bay.
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Caution: When removing the floppy drive assembly or CD-ROM drive
assembly, grasp it by its sides; otherwise damage to the floppy drive
can occur.
 
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							3. 
The floppy drive assembly can be further disassembled by removing 
the Phillips-head screws from the sides of the floppy drive assembly;
lifting off the cover and lifting out the floppy drive and cable
connector (ZIF connector type). Unplug the cable at the ZIF connector.
6.5.3Removing/Replacing the Hard Drive
The procedure for removing and replacing the hard drive assembly is as
follows:
1
. Power down the notebook, remove the battery packs, and disconnect
 the AC adapter, if installed.
2
. Disconnect any peripheral device interface cables from the external
interface connectors and remove any installed PCMCIA options.
3
. Locate the HDD release button on the side of the notebook computer;
press and hold the release button in the direction of the arrow while
sliding the HDD assembly out of its bay.
4
.  Replacement is essentially the reverse of Steps 1 through 3.
6.5.4Removing/Replacing Dual Inline Memory
Modules (DIMMs)
To remove and replace the expansion memory, use the following procedure:
1
. Power down the notebook; disconnect the AC Adapter (if attached) and
remove the notebook battery packs as described in Paragraph 6.5.1.
2
.       Using a small Phillips head screw driver, remove the two screws that
secure the RAM Access Door to the base and remove the door.
3
.       Push the two plastic springs away from the board edge and remove
the board using a slight rocking motion.
4
. When installing a DIMM board, insert the edge of  the board into the
rear of its connector using a slight rocking motion at an angle to the
surface of the board.
5
.  Once the DIMM is fully inserted in the connector, push downward on
both sides of the board to snap it in place.
6
.  Repeat steps 4 and 5 for each DIMM module being installed. Then 
replace hardware earlier removed in Steps 1 and 2.
 
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							6.5.5 Removing/Replacing the Keyboard Assembly
The procedure for removing and replacing the keyboard assembly is as
follows:
1
. Power the notebook off
; disconnect the AC Adapter from the notebook 
(if attached) and remove the battery pack(s) as described in Paragraph
6.5.1.
2
. The top edge of the keyboard is held in place by latches above the 
PrtSc
 and F2
 keys. Slide the latches toward the outer edges of the
notebook.
3
. Using a small straight-blade screwdriver, lift the rear edge of the
keyboard and lay the keyboard over on the glidepad.
4
. Unlock the keyboard ZIF connector on the main board and remove 
the keyboard cable; lift the keyboard out of the unit.
5
. When installing the replacement keyboard, essentially reverse Steps 1
through 4.
 .
Left side release
latch (behind F2 Key)
Right side release
latch (behind PrtSc Key) 
Figure 6-3   Removing/Replacing the Keyboard Assembly
 
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   Field Service 
						

							6.5.6Removing/Replacing the Display Assembly
To access FRUs in the display assembly, remove the display assembly as
described in the following procedure:
1.
  Remove the keyboard assembly as described in Paragraph 6.5.5. 
2
. Lean the LCD partially back (do not lean the LCD completely back as 
it may cause the LCD status cover to bind).
3
. Using both thumbs, press the front edge of the LCD status cover to
release two latches on the rear edge of the cover. With a rocking
motion, gently remove the LCD cover (Note
: You may have to adjust
the LCD cover and lift upward on the front edge of the LCD status
cover).
4
. Remove the screw that secures the ground cable to the Main Board
(located directly below the processor).
5
. Locate the display interconnect (hinge) board (plugs vertically into
 the main board just to the left of the CPU).
6
. Using two pairs of pliers, lift upwards on the left and right side of the
display cable interface board and remove the board from the unit
while pulling the ground cable from the base assembly.
7
. Lay the Display Assembly completely back and remove the four
Phillips-head screws that secure the display hinges to the Base Case
Assembly.
8
. Ensure that the display cables are free from the Top Case Assembly 
and remove the Display Assembly.
9
. Replacement is the reverse of Steps 1 through 8 above.
6.5.7 Removing and Replacing the LCD Status
Assembly
To remove the LCD Status Assembly, perform the following procedure:
1.
    Remove the keyboard assembly as described in paragraph 6.5.5.
2.
Lean the LCD partially back (do not lean the LCD completely back as
it may cause the LCD status cover to bind).
3
. Using both thumbs, press the front edge of the LCD status cover to
release two latches on the rear edge of the cover. Press down at air
vent while lifting tabs in front. With a rocking motion, gently remove
the LCD cover (Note:
 You may have to adjust the LCD cover and lift
upward on the front edge of the LCD status cover).
4
.  Remove the two Phillips-head screws and clips that secure the status
LCD assembly to the base.
5
.  Lower the LCD cover assembly and unlock the ZIF connector on the
back of the LCD status assembly using a plastic stick.
 
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							6
. Lift the status LCD assembly out of the unit.
7
. Reinstallation of  the status LCD assembly is the reverse of Steps 1
through 6.
6.5.8Removing/Replacing the Top Case Assembly
To remove and replace the top case assembly assembly, perform the
following procedure:
1
. Remove the keyboard assembly as described in Paragraph 6.5.5.
2
. Remove the display assembly as described in Paragraph 6.5.6.
3
. Remove the LCD status assembly as described in Paragraph 6.5.7.
4
. Unplug the small cable located next to the keyboard ZIF connector.
5
. Flip the unit over and remove the eight screws from the base. Do Not
remove the flat head screw at the rear of the unit next to the switch.
 Note
: You do not need to remove the two screws holding the RAM 
access door to the base assembly.
6
. Remove the screw to the right of the display cable interface board 
(located behind the status LCD assembly).
7
. Turn the unit over and lift the rear of  the top case assembly one to 
two inches; then pull the top case towards you while keeping the base
in place.
8
.  Reinstallation of the top case assembly is the reverse of Steps 1
 through 7 above.
6.5.9Removing/Replacing the Glidepad Assembly
To remove/replace the glidepad assembly, perform the following procedure:
1
. Remove the top case assembly as described in Paragraph 6.5.8.
2
. Flip the top case assembly over and lay it on a flat surface.
3
. Remove the four screws that secure the glidepad board assembly to 
the plastics.
4
.  Carefully lift the glidepad board out of the plastics. Note that the
glidepad is tethered to the button board by a cable and LIF
connectors.
5
.  Replacement of the glidepad assembly is the reverse of Steps 1
through 4 above.
6.5.10Removing/Replacing the IR/Sound Assembly
To remove and replace the IR/sound assembly, perform the following
procedure:
1
.  Remove the top case assembly as described in Paragraph 6.5.8.
 
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