Acer Aspire 7120 Service Guide

Chapter 5123
Top View
No.DescriptionNo.Description
1 Power Cable Connector  5 Fingerprint/Touchpad 
Connector
2 LCD Cable Connector 6 Bluetooth Connector
3 Touchpad Board Connector 7 Speaker Connector
4 Keyboard Connector
Jumper and Connector Locations
Chapter 5 

124Chapter 5
Bottom View
No.DescriptionNo.Description
1CPU 7USB Connector
2 SATA Connector 8 Card Reader 
3 PC Card Reader 9 Line-out jack
4 LAN Connector 10 Mic-in jack
5 CRT Connector 11 Headphone jack
6 1394 Connector 

Chapter 5125
Standard Operation Procedures of Password Bypassing and BIOS Recovery
Bios/KBC update :
The firmware are combined into one binary file and support both DOS and Windows mode update
- DOS mode
DO make sure you have plugged in the AC adapter to prevent flashing failure.
Before flashing the BIOS, you should unzip the compressed file to one directory.
a.Plug in the AC adapter.
b.Unzip HIC100WW to C: HIC100WW.
c.Boot to pure DOS.
d.It is better not to load HIMEM.sys (bypass CONFIG.sys).
e.To flash...

126Chapter 5
PIN pad Location
The system board provides one hardware Pin pad under the keyboard pad. RD/CSD can enable this function 
by shorting this pad. The  Pin Pad location should look as the figure below. 
1.Clear Password
PIN Pad: Bypassing Password Check
Keep shorting the 2 triangle PIN pad as shown above and then powering on the system will force the BIOS to 
clear Supervisor and User passwords. 
2.Clearing HDD password: 
To decode HDD password error code for unlocking hard disk in a DOS...

Chapter 5127
Enable this function by pressing Fn+ESC, and the Power Button. To use this function, it is strongly 
recommended that the AC adapter is plugged and battery is inserted into the battery slot. If this function is 
enabled, the system will force the BIOS to enter into a special BIOS block, called BootBlock. RD/CSD can use 
this special BIOS code to recover the BIOS to a successful one if previous BIOS flashing process fails. 
However, before doing this, one Crisis Disk should be prepared in...

128Chapter 5 

Chapter 6129
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of TravelMate 5710/5310 and 
Extensa 5610/5210. 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...

130Chapter 6
TravelMate 7520/7520G/7220/7220G Exploded 
Diagram
TravelMate 7520/7520G/7220/7220G FRU List
CategoryNo.Part Name and DescriptionAcer Part No.
Adapter
ADAPTER 90W DELTA ADP-90SB 
BBDARAP.09001.010
ADAPTER 90W DELTA ADP-90SB 
BBEA LFAP.09001.013
ADAPTER 90W LITEON PA-1900-
04WRAP.09003.005
ADAPTER 90W LITEON PA-1900-
24ARAP.09003.011
Battery- 

Chapter 6131
BATTERY PACK LI+ 6CELL 2.0MAH 
SANYOBT.00603.029
BATTERY PACK LI+ 6CELL 2.0MAH 
SONYBT.00604.015
BATTERY PACK LI 6CELL 2.0MAH 
PANASONICBT.00605.014
BATTERY PACK LI 6CELL 2.0MAH 
SIMPLOBT.00607.008
BATTERY PACK LI+ 8CELL 2.4MAH 
SANYOBT.00803.022
BATTERY PACK LI+ 8CELL 2.4MAH 
SONYBT.00804.019
BATTERY PACK LI+ 8CELL 2.4MAH 
PANASONICBT.00805.010
BATTERY PACK LI+ 8CELL 2.4MAH 
SIMPLOBT.00807.013
RTC BATTERY COIN BATTERY 
CR2032 MITSUBISHI23.TCZV1.004
Boards
WIRELESS LAN BOARD 802.11ABG 
INTEL...

132Chapter 6
Cables
FINGER PRINT BOARD CABLE 50.TK901.001
TOUCHPAD CABLE 50.TK901.002
LAUNCH BOARD CABLE 50.TK901.003
POWER BOARD CABLE 50.TK901.004
BLUETOOTH CABLE 50.TK901.005
MODEM CABLE 50.TK901.006
USB BOARD CABLE 50.TK901.007
DC-IN CABLE 50.TK901.008
COVER SWITCH CABLE 50.TK901.009
LCD CABLE 15.4” 50.TK901.011
CategoryNo.Part Name and DescriptionAcer Part No.