Acer Aspire 5740 Service Guide

Chapter 5103
Clearing Password Check and BIOS Recovery
This section provides the standard operating procedures for clearing the password and BIOS recovery for the 
system. There is one Hardware Open Gap on the main board for clearing the password check and one Hotkey 
for enabling BIOS Recovery.
Clearing Password Check
Hardware Open Gap Description
Hardware Gap Position on the Main Board
Gap name in Aspire 5740/5740D/5340 Series is G77.  
Steps for Clearing BIOS Password Check
If the user sets the BIOS...

104Chapter 5
• If there is no password request, the BIOS Password is cleared. Otherwise, repeat the steps above 
and try again.
NOTE: The steps are only for clearing the BIOS password (Supervisor Password and User Password).
BIOS Recovery by Crisis Disk
BIOS Recovery Boot Block
BIOS Recovery Boot Block is a special block of the BIOS. It is used to boot up the system with minimum BIOS 
initialization. Users can enable this feature to restore the BIOS firmware to a successful one once the previous 
BIOS...

Chapter 5105
3.Decompress the Crisis Package Source.  Select WINCRIS.EXE  and then select Run as administrator 
under Windows.   
4.Keep the default settings and then click on the Start button.
5.When the pop-up warning dialog box appears, press OK to continue creating the Crisis Disk.    

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6.The Crisis Disk will be created after a few seconds. 
7.Press No if you do not want to create another Crisis Disk.  

Chapter 5107
8.Reconnect the USB removable storage device and check if it contains the 3 files shown in the following 
figure.  

108Chapter 5 

Chapter 6109
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Aspire 5740/5740D/
5340 Series. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise 
Authorization).
Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available 
on your regional web or channel. For whatever reasons a part number change is made, it will not be noted on 
the printed Service Guide. For ACER AUTHORIZED...

11 0Chapter 6
Exploded Diagram 

Chapter 6111
FRU List
Aspire 5740/5740D/5340 Series FRU List
1.   ACER_ASPIRE 5740 UMACBB_JV50_CP (NO: LX.PM902.064/88 )
CategoryNo.Part Name and DescriptionAcer Part No.
ADAPTER
1ADAPTER 65W 19V 3PIN DELTA ADP-65JH DB A LV5 LED LF 
YELLOWAP.06501.026
1ADAPTER 65W 19V 3PIN LITEON PA-1650-22AC LV5 LED LF 
YELLOWAP.06503.024
1ADAPTER 65W 19V 3PIN HIPRO HP-A0652R3B 1LF LV5 LED LF 
YELLOWAP.0650A.012
BATTERY
1BATTERY SANYO AS-2007A LI-ION 3S2P SANYO 6 CELL 
4400MAH MAIN COMMON NORMAL TYPEBT.00603.041...

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1WIRELESS LAN BOARD FOXCONN ATHEROS XB63 MINICARD 
B/GNI.23600.062
1WIRELESS LAN BOARD QMI ATHEROS HB93 1X2 BGN HM 
EM306NI.23600.064
1WIRELESS LAN BOARD FOXCONN 802.11BGN BCM 43225 2X2 
BGN (HM) T77H103.00NI.23600.066
CABLES
1BLUETOOTH BOARD CABLE 50.PAW01.004
1FINGER PRINT / TP BUTTON BAORD CABLE 50.PAW01.003
2LED BUTTON BOARD CABLE 50.4CG02.001
2LED BUTTON BOARD CABLE 50.4GD01.001 
2LED LCD/CAMERA CABLE 50.4CG02.011
2LED LCD/CAMERA CABLE 50.4GD01.011
2MODEM CABLE 50.4CG04.001
2MODEM...