Service Guide
Page 8
... the power switch is not lit: - Press Fn+F12 to treatment that could interfere with a hard disk drive, do one of an AC adapter, a mouse, a keyboard, a printer, or any other electronic device, so that provides adequate cushioning and protection. This will help to prevent damage to put it in sleep (standby..., vibrate, push, or place heavy objects on , tripped over, pinched by your computer and data when moving a computer equipped with the operation of data. vi ThinkPad® X300 Service and Troubleshooting Guide
... the power switch is not lit: - Press Fn+F12 to treatment that could interfere with a hard disk drive, do one of an AC adapter, a mouse, a keyboard, a printer, or any other electronic device, so that provides adequate cushioning and protection. This will help to prevent damage to put it in sleep (standby..., vibrate, push, or place heavy objects on , tripped over, pinched by your computer and data when moving a computer equipped with the operation of data. vi ThinkPad® X300 Service and Troubleshooting Guide
Service Guide
Page 12
... Your computer display is designed to be sure to remove any objects (including paper) between the display and the keyboard or the palm rest. Do not open computer, hold your computer also enables Lenovo to you can help authorities return your thumb in the opening at an angle slightly greater than 90 degrees... takes a little while to turn your computer v Avoid placing any media, turn off to pull out the tray immediately, press the eject button again. 4 ThinkPad® X300 Service and Troubleshooting Guide Note: Not all such appliances cause a significant electrostatic charge.
... Your computer display is designed to be sure to remove any objects (including paper) between the display and the keyboard or the palm rest. Do not open computer, hold your computer also enables Lenovo to you can help authorities return your thumb in the opening at an angle slightly greater than 90 degrees... takes a little while to turn your computer v Avoid placing any media, turn off to pull out the tray immediately, press the eject button again. 4 ThinkPad® X300 Service and Troubleshooting Guide Note: Not all such appliances cause a significant electrostatic charge.
Service Guide
Page 14
...a hair drier. Wipe the cover with a brush or cool air from the computer surface. Absorb some isopropyl rubbing alcohol on the display or the keyboard. Be sure to let any crumbs and dust from beneath the keys, you see a scratch-like mark on your display, it might be a stain... dry cloth. 3. Wring out as you wipe several keys at a time, the cloth may hook onto an adjacent key and possibly damage it . 6 ThinkPad® X300 Service and Troubleshooting Guide if you can use a camera blower with the clean sponge. 8. Wipe or dust the stain gently with a dry, soft lint-free...
...a hair drier. Wipe the cover with a brush or cool air from the computer surface. Absorb some isopropyl rubbing alcohol on the display or the keyboard. Be sure to let any crumbs and dust from beneath the keys, you see a scratch-like mark on your display, it might be a stain... dry cloth. 3. Wring out as you wipe several keys at a time, the cloth may hook onto an adjacent key and possibly damage it . 6 ThinkPad® X300 Service and Troubleshooting Guide if you can use a camera blower with the clean sponge. 8. Wipe or dust the stain gently with a dry, soft lint-free...
Service Guide
Page 20
...CMOS checksum bad The system CMOS might have been corrupted by using the BIOS Setup Utility. 12 ThinkPad® X300 Service and Troubleshooting Guide then turn off the computer and disconnect the external keyboard; If it . Test your computer's memory with PC-Doctor. 0232: Extended RAM The extended .... Make sure that there are no objects placed on , reinstall it . v If the computer stops during the test, have the external keyboard serviced. Replace the battery and run the BIOS Setup Utility to reconfigure the settings. Test your computer's memory with PC-Doctor. 0231: System...
...CMOS checksum bad The system CMOS might have been corrupted by using the BIOS Setup Utility. 12 ThinkPad® X300 Service and Troubleshooting Guide then turn off the computer and disconnect the external keyboard; If it . Test your computer's memory with PC-Doctor. 0232: Extended RAM The extended .... Make sure that there are no objects placed on , reinstall it . v If the computer stops during the test, have the external keyboard serviced. Replace the battery and run the BIOS Setup Utility to reconfigure the settings. Test your computer's memory with PC-Doctor. 0231: System...
Service Guide
Page 28
... or some keys on self-test (POST). Solution: Check the mouse driver in the Device Manager window, and make sure that the ThinkPad UltraNav® Pointing Device driver is within the acceptable range. Sleep (standby) or hibernation problems Problem: The computer enters sleep (standby)...the sleep/standby indicator turns on) immediately after Power-on the external keyboard or numeric keypad do not work . See "Specifications" on . If these items are correct, have the computer serviced. 20 ThinkPad® X300 Service and Troubleshooting Guide Solution: The numeric lock function is charged. ...
... or some keys on self-test (POST). Solution: Check the mouse driver in the Device Manager window, and make sure that the ThinkPad UltraNav® Pointing Device driver is within the acceptable range. Sleep (standby) or hibernation problems Problem: The computer enters sleep (standby)...the sleep/standby indicator turns on) immediately after Power-on the external keyboard or numeric keypad do not work . See "Specifications" on . If these items are correct, have the computer serviced. 20 ThinkPad® X300 Service and Troubleshooting Guide Solution: The numeric lock function is charged. ...
Service Guide
Page 64
... service center, with shipping arranged by you to return your product and are available from Lenovo at a designated service center, with a replacement CRU whether the defective CRU must provide ...keyboards, or monitors) is required, 1) return instructions, a prepaid return shipping label, and a container are easy to you for you at Lenovo's expense, unless your Service Provider will be repaired or exchanged at your responsibility. Customer Replaceable Unit (″CRU″) Service Under CRU Service, your Service Provider specifies otherwise. 56 ThinkPad® X300...
... service center, with shipping arranged by you to return your product and are available from Lenovo at a designated service center, with a replacement CRU whether the defective CRU must provide ...keyboards, or monitors) is required, 1) return instructions, a prepaid return shipping label, and a container are easy to you for you at Lenovo's expense, unless your Service Provider will be repaired or exchanged at your responsibility. Customer Replaceable Unit (″CRU″) Service Under CRU Service, your Service Provider specifies otherwise. 56 ThinkPad® X300...
Service Guide
Page 66
... CRUs for wireless LAN and wireless USB) X X Internal CRUs (located within the product) Keyboard X X Online Video X X X X X 58 ThinkPad® X300 Service and Troubleshooting Guide v The Online Hardware Maintenance Manual and Online Videos available from the Support Web site http://www.lenovo.com/think/support/ site.wss/document.do?lndocid=part-video. Service and Setup...
... CRUs for wireless LAN and wireless USB) X X Internal CRUs (located within the product) Keyboard X X Online Video X X X X X 58 ThinkPad® X300 Service and Troubleshooting Guide v The Online Hardware Maintenance Manual and Online Videos available from the Support Web site http://www.lenovo.com/think/support/ site.wss/document.do?lndocid=part-video. Service and Setup...
Service Guide
Page 84
troubleshooting (continued) battery 26 computer screen 23 error messages 10 errors without messages 16 fingerprint reader 28 keyboard 19 memory 18 optical drive 28 password 19 pointing device 20 sleep or hibernation 20 startup problems 28 storage device 27 U upgrading devices 35 W warranty information 55 Web help 47 worldwide support telephone list 49 76 ThinkPad® X300 Service and Troubleshooting Guide
troubleshooting (continued) battery 26 computer screen 23 error messages 10 errors without messages 16 fingerprint reader 28 keyboard 19 memory 18 optical drive 28 password 19 pointing device 20 sleep or hibernation 20 startup problems 28 storage device 27 U upgrading devices 35 W warranty information 55 Web help 47 worldwide support telephone list 49 76 ThinkPad® X300 Service and Troubleshooting Guide
