Lenovo IdeaPad U300/ U300s/U400
Hardware Maintenance Manual
First Edition Oct Copyright Lenovo 2011. All rights reserved
Restoring the factory contents by using
Contents
Important service information
Related service information
Lenovo IdeaPad U300/U300s/U400
About this manual
Safety information
Safety information
General safety
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Safety information
Electrical safety
Power supply units Pumps Blowers and fans Motor generators
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Safety information
Safety inspection guide
Grounding requirements
Handling devices that are sensitive to electrostatic discharge
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Safety notice
Safety notices multilingual translations
Safety information
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Safety notice DANGER
Safety notice DANGER
Safety information
The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery
Safety notice DANGER
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100C 212F, incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery
Safety notice
Safety information
If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing
Safety notice DANGER
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Safety notice DANGER
To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card
Safety notice DANGER
Safety information
Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Laser compliance statement
Safety information
DANGER
Before replacing parts
Important service information
Strategy for replacing FRUs
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Strategy for replacing a hard disk drive
Important service information
Important notice for replacing a system board
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Important information about replacing RoHS compliant FRUs
Replacement FRU
When you replace FRUs, use new nylon-coated screws
Only certified trained personnel can service the computer
General checkout
General checkout
What to do first
The following are not covered under warranty
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Checking the AC adapter
Power system checkout
Checking operational charging
General checkout
Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Restoring the factory contents by using OneKey Recovery
Related service information
Restore of factory default
Using recovery discs
Power-on password
Passwords
Supervisor password
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Screen blank mode
Power management
Sleep standby mode
Related service information
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Hibernation mode
Table 1. Specifications
Specifications
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 1. Specifications continued
Feature
Description
Table 2. Status indicators
Status indicators
Indicator
1 Power on
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 2. Status indicators continued
Indicator
Meaning
Table 4. Hotkey
Function key combinations
Lenovo IdeaPad U300/U300s/U400
Screw notices
FRU replacement notices
Plastic to plastic
Logic card to plastic
Lenovo IdeaPad U300/U300s/U400
Removing and replacing an FRU
DANGER
1010 Base cover U300
U300
Figure 1. Removal steps of base cover
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
Note Applying labels to the base cover
Figure 2. Removal steps of battery pack
1020 Battery pack U300
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
DANGER
Figure 3. Removal steps of hard disk drive
1030 Hard disk drive U300
Lenovo IdeaPad U300/U300s/U400
Figure 4. Removal steps of DIMM
1040 DIMM U300
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 5. Removal steps of PCI Express Mini Card for wireless LAN
1050 PCI Express Mini Card for wireless LAN U300
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing
Figure 6. Removal steps of fan assembly and heat sink assembly
1060 Fan assembly and Heat Sink assembly U300
Lenovo IdeaPad U300/U300s/U400
Lift the fan assembly and heat sink assembly in the direction shown by arrow 4. Be careful not to damage the connector
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing
Important notices for handling the system board
1070 System board U300
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 7. Removal steps of system board
Step
Screw quantity
Lenovo IdeaPad U300/U300s/U400
Figure 7. Removal steps of system board continued
Figure 8. Removal steps of speakers and microphone
1080 Speakers and microphone U300
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
Figure 9. Removal steps of LCD unit
1090 LCD unit U300
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing
Figure 9. Removal steps of LCD unit continued
Lenovo IdeaPad U300/U300s/U400
Remove the LCD unit in the direction shown by arrows
Figure 10. Removal steps of keyboard and keyboard bezel
1100 Keyboard and keyboard bezel U300
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
Figure 10. Removal steps of keyboard and keyboard bezel continued
Step
Screw quantity
Remove the system status indicators board in the direction shown by arrow
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 10. Removal steps of keyboard and keyboard bezel continued
Figure 10. Removal steps of keyboard and keyboard bezel continued
Lenovo IdeaPad U300/U300s/U400
Step
Screw quantity
1010 Base cover U300s
U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 1. Removal steps of base cover
Note Applying labels to the base cover
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1020 Battery pack U300s
Figure 2. Removal steps of battery pack
DANGER
Figure 3. Removal steps of speakers
1030 Speakers U300s
Lenovo IdeaPad U300/U300s/U400
Figure 4. Removal steps of solid state disk
1040 Solid State Disk U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 5. Removal steps of USB board
1050 USB Board U300s
Lenovo IdeaPad U300/U300s/U400
Figure 6. Removal steps of keyboard and keyboard bezel
1060 Keyboard and keyboard bezel U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing Make sure that the connectors are attached firmly
Figure 6. Removal steps of keyboard and keyboard bezel continued
Lenovo IdeaPad U300/U300s/U400
Figure 6. Removal steps of keyboard and keyboard bezel continued
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Step
Screw quantity
Figure 6. Removal steps of keyboard and keyboard bezel continued
Lenovo IdeaPad U300/U300s/U400
Figure 7. Removal steps of PCI Express Mini Card for wireless LAN
1070 PCI Express Mini Card for wireless LAN U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
When installing
Figure 8. Removal steps of LCD unit
1080 LCD unit U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing
Lenovo IdeaPad U300/U300s/U400
Figure 8. Removal steps of LCD unit continued
Remove the LCD unit in the direction shown by arrow
Figure 9. Removal steps of DIMM
1090 DIMM U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 10. Removal steps of fan assembly and heat sink assembly
1100 Fan assembly and Heat Sink assembly U300s
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
When installing
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1110 System board U300s
Important notices for handling the system board
Lenovo IdeaPad U300/U300s/U400
Figure 11. Removal steps of system board
Step
Screw quantity
1010 Base cover U400
U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 1. Removal steps of base cover
Note Applying labels to the base cover
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1020 Battery pack U400
Figure 2. Removal steps of battery pack
DANGER
Lenovo IdeaPad U300/U300s/U400
1030 Hard disk drive U400
Figure 3. Removal steps of hard disk drive
Figure 4. Removal steps of PCI Express Mini Card for wireless LAN
1040 PCI Express Mini Card for wireless LAN U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
When installing
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1050 System board U400
Important notices for handling the system board
Lenovo IdeaPad U300/U300s/U400
Figure 5. Removal steps of system board
Figure 6. Removal steps of USB board and HDD board
1060 USB board and HDD board U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing Make sure the connectors are attached firmly
Figure 6. Removal steps of USB board and HDD board continued
Lenovo IdeaPad U300/U300s/U400
Figure 7. Removal steps of speakers and microphone
1070 Speakers and microphone U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
Figure 7. Removal steps of speakers and microphone continued
Remove the microphone in the direction by arrow
Figure 8. Removal steps of optical drive
1080 Optical drive U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
When installing
1090 LCD unit U400
Lenovo IdeaPad U300/U300s/U400
Figure 9. Removal steps of LCD unit
Figure 9. Removal steps of LCD unit continued
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Remove the LCD unit in the direction shown by arrows
Lenovo IdeaPad U300/U300s/U400
1100 Keyboard and keyboard bezel U400
Figure 10. Removal steps of keyboard and keyboard bezel
Figure 11. Removal steps of fan assembly and heat sink assembly
1110 Fan assembly and Heat Sink assembly U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
When installing
Figure 12. Removal steps of DIMM
1120 DIMM U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 13. Removal steps of LCD front bezel
1130 LCD front bezel U400
Lenovo IdeaPad U300/U300s/U400
Figure 14. Removal steps of LCD panel, hinges and LCD cable
1140 LCD panel, hinges and LCD cable U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Note The LCD cables are attached to the LCD panel by a metal connector
Figure 14. Removal steps of LCD panel, hinges and LCD cable continued
Lenovo IdeaPad U300/U300s/U400
Figure 15. Removal steps of integrated camera
1150 Integrated camera U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
1160 Antenna assembly and LCD cover U400
Front view
Locations
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
U300
Right-side view
U300s
U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Bottom and Left-side view
U300
U300s
This section presents the following service parts “Overall” on page
Parts list
“AC adapters” on page “Power cords” on page
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Overall
U300
Lenovo IdeaPad U300/U300s/U400
Table 5. Parts list-Overall
No. FRU
FRU no
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 5. Parts list-Overall continued
No. FRU
FRU no
Lenovo IdeaPad U300/U300s/U400
U300s
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 6. Parts list-Overall
No. FRU
FRU no
Lenovo IdeaPad U300/U300s/U400
Table 6. Parts list-Overall continued
No. FRU
FRU no
U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Lenovo IdeaPad U300/U300s/U400
Table 7. Parts list-Overall
No. FRU
FRU no
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 7. Parts list-Overall continued
No. FRU
FRU no
Lenovo IdeaPad U300/U300s/U400
LCD FRUs
In Lenovo IdeaPad U400, there are following types of LCDs
“14.0-in. HD TFT”
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 8. Parts list-14.0-in. HD TFT
14.0-in. HD TFT
No. FRU
Keyboard
Table 9. Parts list-Keyboard
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 9. Parts list-Keyboard continued
Lenovo IdeaPad U300/U300s/U400
Table 9. Parts list-Keyboard continued
Table 11. Parts list-Miscellaneous parts
Table 10. Parts list-Miscellaneous parts
Miscellaneous parts
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
U400
Table 12. Parts list-Miscellaneous parts
Lenovo IdeaPad U300/U300s/U400
AC adapters
Table 13. Parts list-AC adapters
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 14. Parts list-3-pin power cords
Power cords
U300/U300s
Lenovo IdeaPad U300/U300s/U400
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 14. Parts list-3-pin power cords continued
Region
Lenovo IdeaPad U300/U300s/U400
Table 14. Parts list-3-pin power cords continued
Region
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 15. Parts list-2-pin power cords
Region
UL 2PIN 1m power cord UK 2PIN 1m power cord Indian 2PIN 1m power cord
Table 15. Parts list-2-pin power cords continued
Italy 2PIN 1m power cord Korea 2PIN 1m power cord Australia 2PIN
1m power cord Taiwan2PIN 1m power cord Japan 2PIN 1m power cord
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 16. Parts list-3-pin power cords
U400
Region
Lenovo IdeaPad U300/U300s/U400
Table 16. Parts list-3-pin power cords continued
Region
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Table 17. Parts list-2-pin power cords
Region
Japan 2pin
Notices
Notices
Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Trademarks
