Lenovo N 500 Service Manual

							Lenovo 3000 N500 
This chapter presents following product-specific service references and 
product-specific parts information. 
v   
 “Specifications” 
v 
 
 “Status indicators” on page 45 
v 
 
 “FRU tests” on page 47 
v 
 
 “Fn key combinations” on page 48 
v 
 
 “FRU replacement notices” on page 49 
v 
 
 “Removing and replacing a FRU” on page 53 
v 
 
 “Locations” on page 93 
v 
 
 “Parts list” on page 96
Specifications 
The following table lists the specifications of the Lenovo 3000 N500 : 
 Table 6. Specifications 
Feature Description 
Processor v 
 
 Intel® Celeron M processor 575 (2.0 GHz), 1-MB L2 cache 
v 
 
 Intel Celeron M processor 585 (2.16 GHz), 1-MB L2 cache 
v 
 
 Intel Pentium dual-core processor T3200 (2.0 GHz), 1-MB 
L2 cache 
v 
 
 Intel Pentium dual-core processor T3400 (2.16 GHz), 1-MB 
L2 cache 
v 
 
 Intel® Core™ 2 Duo processor P7350 (2.0 GHz), 3-MB L2 
cache 
v 
 
 Intel Core 2 Duo mobile processor PP8400 (2.26 GHz), 
3-MB L2 cache 
v 
 
 Intel Core 2 Duo mobile processor P8600 (2.4 GHz), 3-MB 
L2 cache 
v 
 
 Intel Core 2 Duo mobile processor P9500 (2.53 GHz), 6-MB 
L2 cache 
v 
 
 Intel Core 2 Duo mobile processor T5670 (1.8 GHz), 2-MB 
L2 cache 
v 
 
 Intel Core 2 Duo mobile processor T5800 (2.0 GHz), 2-MB 
L2 cache 
v 
 
 Intel Core 2 Duo mobile processor T5900 (2.2 GHz), 2-MB 
L2 cache 
v 
 
 Intel Core 2 Duo mobile processor T9400 (2.53 GHz), 6-MB 
L2 cache 
v 
 
 Intel Core 2 Duo mobile processor T9600 (2.80 GHz), 6-MB 
L2 cache 
Bus architecture v 
 
 800-MHz PSB 
v 
 
 667-MHz DDR2 SDRAM (PC2-5300) 
v 
 
 PCI bus 
v 
 
 PCI Express bus 
v 
 
 DMI 
Graphic memory chip v 
 
 Intel GMA 4500 Integrated Graphics 
v 
 
 Intel GMA X4500 Integrated Graphics 
v 
 
 nVidia GeForce 9300 256 MB 
Display v 
 
 15.4-inch, 16M colors, WXGA (1280 × 800 resolution) TFT 
color LCD 
 
© Copyright Lenovo 2008, 2009 43  
						

							Table 6. Specifications (continued) 
Feature Description 
Standard memory v   
 1-GB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1 
v 
 
 2-GB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1 
Optional memory v 
 
 1-GB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1 
v 
 
 2-GB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1
(maximum
 of 4.0 GB) 
CMOS RAM v   
 242 bytes 
Hard disk drive v 
 
 160 GB, 5400 rpm, 9.5 mm high, S ATA interface 
v 
 
 250 GB, 5400 rpm, 9.5 mm high, S ATA interface 
v 
 
 320 GB, 5400 rpm, 9.5 mm high, S ATA interface
Supported
 hard disk drives depend on the model. 
Optical drive v   
 DVD/CD-RW combo drive, 12.7 mm high 
v 
 
 DVD multi drive, 12.7 mm high 
I/O port v 
 
 External monitor connector 
v 
 
 Stereo headphone jack 
v 
 
 Monaural microphone jack 
v 
 
 Docking connector 
v 
 
 RJ11 connector 
v 
 
 RJ45 connector 
v 
 
 Universal serial bus (USB) connector × 4 (compatible with 
USB 1.1 and 2.0) 
v 
 
 4-in-1 media card reader 
Internal modem v 
 
 56.6 Kbps 
Audio v 
 
 Built-in stereo speakers 
v 
 
 Software control volume 
Ethernet (on the system 
board) 
v 
 
 10/100M Ethernet 
PCI Express Mini Card v 
 
 Lenovo 802.11b/g Wireless LAN Mini-PCI Express 
Adapter 
v 
 
 Intel WiFi Link 5100 
ExpressCard slot v 
 
 One ExpressCard slot and one PC Card (Type-II) slot 
v 
 
 One Smart Card slot and one PC Card (Type-II) slot 
Bluetooth wireless (some 
models) 
v 
 
 Lenovo 3000 Bluetooth with Enhanced Data Rate (BDC-2.1) 
Modem v 
 
 Lenovo 3000 Modem (MDC-1.5, 56 kbps HDA) 
Touch pad Ye s 
Integrated camera Some models 
Battery v 
 
 Li-ion battery (6 cells) 2.4 Ah 
v 
 
 Li-ion battery (6 cells) 2.6 Ah 
AC adapter v 
 
 65-watt type 
v 
 
 90-watt type 
Preinstalled operating 
system 
v 
 
 Windows Vista® Home Basic (32 bit) 
v 
 
 Windows Vista Home Premium (32 bit) 
v 
 
 Windows Vista Business (32 bit)
 
 
44 Lenovo 3000 N500 Hardware Maintenance Manual 
						

							Status indicators 
The system status indicators show the status of the computer, as follows: 
1
2
3
4
7
6
5
   
 
 Table 7. Status indicators 
Indicator Meaning 

1 Drive in use Blue: Data is being read from or written to the hard disk 
drive, the solid state drive, or the optical disk drive. 
When this indicator is on, do not put the computer into 
standby mode or turn off the computer.
Note:
 Do not move the system while the green drive-in-use light 
is on. Sudden physical shock could cause drive errors. 

2 Caps lock Blue: Caps Lock mode is enabled. To enable or disable Caps 
Lock mode, press the Caps Lock key. 

3 Num lock Blue: The numeric keypad on the keyboard is enabled. To 
enable or disable the keypad, press and hold the Shift 
key, and press the NumLk key. 

4 Scroll lock Blue: Scroll Lock mode is enabled. To enable or disable Scroll 
Lock mode, press and hold the Shift key, and press the 
ScrLk key. 

5 Wireless status Purple: The wireless LAN and the Bluetooth features are on, and 
the radio link is ready for use. 
Orange: 
The Bluetooth feature is on, and the radio link is ready 
for use. 
Blue: The wireless LAN feature is on, and the radio link is 
ready for use. 
Blinking blue: 
The wireless LAN feature is on, and the networks are 
being scanned. 
 
Lenovo 3000 N500 45 
						

							Table 7. Status indicators (continued) 
Indicator Meaning 

6 Battery status Blue: The battery is charged to 95% or more of its capacity. 
Blinking blue: 
The battery is being trickle-charged. 
Orange: 
The battery is being normally charged. 
Off: The computer is operating on battery power, and the 
battery has enough power. 
Blinking orange: 
The computer is operating on battery power, and the 
battery is charged to no more than 8% of capacity. 

7 Power on Blue: The computer is on and ready to use. This indicator 
stays on whenever the computer is on and is not in 
standby mode. 
 
 
46 Lenovo 3000 N500 Hardware Maintenance Manual 
						

							FRU tests 
The following table shows the test for each FRU. 
 Table 8. FRU tests 
FRU Applicable test 
System board 1.   
 Diagnostics --> CPU/Coprocessor 
2. 
 
 Diagnostics --> Systemboard 
LCD unit 1. 
 
 Diagnostics --> Video Adapter 
2. 
 
 Interactive Tests --> Video 
Keyboard 1. 
 
 Diagnostics --> Systemboard --> Keyboard 
2. 
 
 Interactive Tests --> Keyboard 
Hard disk drive Diagnostics --> Fixed Disks 
Diskette drive Diagnostics --> Diskette Drives 
Memory 1. 
 
 If two DIMMs are installed, remove one of them and run 
Diagnostics --> PM Memory. 
2. 
 
 If the problem does not recur, return the DIMM to its place, 
remove the other one, and run the test again. 
3. 
 
 If the test does not detect the error, run Diagnostics --> PM 
Memory. 
 
 
Lenovo 3000 N500 47 
						

							Fn key combinations 
The following table shows the function of each combination of Fn with a function 
key. 
 Table 9. Fn key combinations 
Key combination Description 
Fn+F1 Volume down. 
Fn+F2 Volume up. 
Fn+F3 Reserved. 
Fn+F4 Reserved. 
Fn+F5 Enable or disable the built-in wireless networking features and the 
Bluetooth features. If you press Fn+F5, a list of wireless features is 
displayed. Yo u can quickly change the power state of each feature in 
the list. 
Fn+F6 Reserved. 
Fn+F7 Open the window for Choose Presentation or Display scheme. If you 
press this combination of keys, a list of schemes is displayed in the 
window. Yo u can quickly select a scheme in the list. 
Fn+F8 Reserved. 
Fn+F9 Reserved. 
Fn+F10 Make the computer display less bright. 
Fn+F11 Make the computer display brighter. 
Fn+F12 Put the computer into hibernation mode. To return to normal operation, 
press the power button. 
Fn+Esc Mute the sound from the computer. 
Fn+Insert Scroll Lock (ScrLk). 
Fn+Delete Numeric Lock (NmLk). 
Fn+PrtSc Has the same function as the SysRq key. 
Fn+Pause Has the same function as the Break key. 
Fn+PgUp Has the same function as the Home key. 
Fn+PgDn Has the same function as the End key. 
Fn+cursor keys These key combinations work with Windows Media Player. Fn+down 
arrow key works for the Play or Pause button, Fn+up arrow key for the 
Stop button, Fn+right arrow key for the Next Track button, and Fn+left 
arrow key for the Previous Track button. 
 
 
48 Lenovo 3000 N500 Hardware Maintenance Manual 
						

							FRU replacement notices 
This section contains notices related to removing and replacing parts. Read this 
section carefully before replacing any FRU. 
Screw notices 
Loose screws can cause a reliability problem. In the Lenovo 3000 computer, this 
problem is addressed with special nylon-coated screws that have the following 
characteristics: 
v   
 They maintain tight connections. 
v 
 
 They do not easily come loose, even with shock or vibration. 
v 
 
 They are harder to tighten. 
v 
 
 Each one should be used only once.
Do
 the following when you service this machine: 
v   
 Keep the screw kit (for the P/N, see “Miscellaneous parts” on page 104) in your 
tool bag. 
v 
 
 Always use new screws. 
v 
 
 Use a torque screwdriver if you have one.
Tighten
 screws as follows: 
v   
 Plastic to plastic 
Turn an additional 90 degrees after the screw head touches the surface of the 
plastic part: 
90 degrees more
(Cross-section)   
   
v 
 
 Logic card to plastic 
Turn an additional 180 degrees after the screw head touches the surface of the 
logic card: 
180 degrees more
(Cross-section)   
   
v 
 
 Torque driver 
If you have a torque driver, refer to the “Torque” column for each step. 
v 
 
 Make sure that you use the correct screw. If you have a torque screwdriver, 
tighten all screws firmly to the torque shown in the table. Never use a screw 
that you removed. Use a new one. Make sure that all of the screws are 
tightened firmly. 
v 
 
 Ensure torque screw drivers are calibrated correctly following country 
specifications.
 
 
Lenovo 3000 N500 49 
						

							Retaining serial numbers 
This section includes the following descriptions: 
v   
 “Restoring the serial number of the system unit” 
v 
 
 “Retaining the UUID” 
v 
 
 “Reading or writing the ECA information” on page 52
Restoring the serial number of the system unit 
When the computer was manufactured, the EEPROM on the system board was 
loaded with the serial numbers of the system and all major components. These 
numbers need to remain the same throughout the life of the computer. 
If you replace the system board, you must restore the serial number of the system 
unit to its original value. 
Before replacing the system board, save the original serial number by doing the 
following: 
1. 
 
 Install the CE Utility Diskette for Lenovo 3000 notebooks, and restart the 
computer. 
2. 
 
 From the main menu, select 1. Set System Identification. 
3. 
 
 Select 2. Read S/N data from EEPROM. 
The serial number of each device in your computer is displayed; the serial number 
of the system unit is listed as follows: 
v 
 
 20: Serial number 
Write down that number. 
Note: The serial number of the system unit is also written on the label attached to 
the bottom of the computer. 
After you have replaced the system board, restore the serial number by doing the 
following: 
1. 
 
 Install the CE Utility Diskette for Lenovo 3000 notebooks and restart the 
computer. 
2. 
 
 From the main menu, select 1. Set System Identification. 
3. 
 
 Select 1. Add S/N data from EEPROM. 
Follow the instructions on the screen. 
If the MTM and Product ID numbers differ from each other on the rear label, use 
what is shown for the Product ID field. See example below: 
MTM on rear label: 
TTTT-CTO S/N SSSSSSS 
Product ID on rear label: 
TTTT-MMM (Use this number when setting Serial Number)
 In the example, the Serial Number to be input is ’1STTTTMMMSSSSSSS’. 
Retaining the UUID 
The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to 
your computer at production and stored in the EEPROM of your system board. 
The algorithm that generates the number is designed to provide unique IDs until 
the year A.D. 3400. No two computers in the world have the same number. 
 
50 Lenovo 3000 N500 Hardware Maintenance Manual 
						

							When you replace the system board, you must set the UUID on the new system 
board as follows: 
1.   
 Install the CE Utility Diskette for Lenovo 3000 notebooks, and restart the 
computer. 
2. 
 
 From the main menu, select 4. Assign UUID. 
A new UUID is created and written. If a valid UUID already exists, it is not 
overwritten.
 
 
Lenovo 3000 N500 51 
						

							Reading or writing the ECA information 
Information on Engineering Change Announcements (ECA) are stored in the 
EEPROM of the system board. The electronic storage of this information simplifies 
the procedure to check if the ECA has been previously applied to a machine. The 
machine does not need to be disassembled to check for the ECA application. 
To check what ECAs have been previously applied to the machine, use the ECA 
Information Read/Write function on the CE Utility Diskette for Lenovo 3000 
notebooks. 
1.   
 Insert the CE Utility Diskette for Lenovo 3000 notebooks, and restart the 
computer. 
2. 
 
 From the main menu, select 6. Set ECA Information. 
3. 
 
 To read ECA information, select 2. Read ECA/rework number from EEPROM 
and follow the instruction. 
4. 
 
 To read box build date, select 5. Read box build date from EEPROM, and 
follow the instruction on the screen. 
After an ECA has been applied to the machine, the EEPROM must be updated to 
reflect the ECA’s application. Use the CE Utility Diskette for Lenovo 3000 
notebooks to update the EEPROM. 
Note: Only the ECA number is stored in the EEPROM. The machine type of the 
ECA is assumed be the same as the machine type of the machine that had the ECA 
applied to it. 
1. 
 
 Insert the CE Utility Diskette for Lenovo 3000 notebooks, and restart the 
computer. 
2. 
 
 From the main menu, select 6. Set ECA Information. 
3. 
 
 To write ECA information, select 1. Write ECA/rework number from EEPROM, 
and follow the instruction. 
4. 
 
 To write box build date, select 4. Write box build date from EEPROM, and 
follow the instruction on the screen. 
If the system board is being replaced, try to read the ECA information from the old 
system board and transfer the information to the new system. If the system board 
is inoperable, this will not be possible. 
 
52 Lenovo 3000 N500 Hardware Maintenance Manual