TravelMate 4020 Service Guide
Page 71
... Pin 2: 0V, Ground 1. Memory check Memory errors might stop system operations, show error messages on indicator does not light up, check the power cord of the power adapter for correct continuity and installation. 4. Boot from the computer and measure the output voltage at the plug of the... page 65 T "Check the Battery Pack" on page 65. NOTE: An audible noise from the power adapter does not always indicate a defect. 3. If the power-on the screen, or hang the system. 1. Check out the Power Management in the test items. 4. Repeat the steps 1 and 2, for both battery and adapter. ...
... Pin 2: 0V, Ground 1. Memory check Memory errors might stop system operations, show error messages on indicator does not light up, check the power cord of the power adapter for correct continuity and installation. 4. Boot from the computer and measure the output voltage at the plug of the... page 65 T "Check the Battery Pack" on page 65. NOTE: An audible noise from the power adapter does not always indicate a defect. 3. If the power-on the screen, or hang the system. 1. Check out the Power Management in the test items. 4. Repeat the steps 1 and 2, for both battery and adapter. ...
TravelMate 4020 User's Guide
Page 4
... you are some ways to take care of your AC adapter Here are using an extension cord. Carefully route the power cord and any cables away from foot traffic. • When unplugging the power cord, do any of your computer Your computer will serve you well if you close it . Do not place it near... adapter: • Do not connect the adapter to any other device. • Do not step on the power cord or place heavy objects on uneven surfaces. Note: If you turn off , do not pull on the cord itself but pull on the plug. • The total ampere ratings of it . • Never place...
... you are some ways to take care of your AC adapter Here are using an extension cord. Carefully route the power cord and any cables away from foot traffic. • When unplugging the power cord, do any of your computer Your computer will serve you well if you close it . Do not place it near... adapter: • Do not connect the adapter to any other device. • Do not step on the power cord or place heavy objects on uneven surfaces. Note: If you turn off , do not pull on the cord itself but pull on the plug. • The total ampere ratings of it . • Never place...
TravelMate 4020 User's Guide
Page 35
... to a client's office or a different building, you may choose to shut down the computer. 4 Close the display cover. 5 Disconnect the cord from the AC adapter. 6 Disconnect the keyboard, pointing device, printer, external monitor and other external devices. 7 Disconnect the Kensington lock if you...from the desktop Follow these steps to disconnect your computer. Preparing the computer Before moving within the building. then press and release the power button. Moving around or traveling with your computer from external accessories: 1 Save any open files. 2 Remove any media, floppy disks...
... to a client's office or a different building, you may choose to shut down the computer. 4 Close the display cover. 5 Disconnect the cord from the AC adapter. 6 Disconnect the keyboard, pointing device, printer, external monitor and other external devices. 7 Disconnect the Kensington lock if you...from the desktop Follow these steps to disconnect your computer. Preparing the computer Before moving within the building. then press and release the power button. Moving around or traveling with your computer from external accessories: 1 Save any open files. 2 Remove any media, floppy disks...
TravelMate 4020 User's Guide
Page 36
..., or if your battery is relatively short, you probably do not need to take the following items with you Unless you : • AC adapter and power cord • The printed User's Guide What to bring the AC adapter with you may enter Hibernation mode after being in Sleep mode. English 28 Note... cushion it if it should fall. Taking the computer home When you to bring anything with you are not actively using the computer. If the power indicator is off but the Sleep indicator is turned off , the computer has entered Hibernation mode and is on, the computer has entered Sleep mode...
..., or if your battery is relatively short, you probably do not need to take the following items with you Unless you : • AC adapter and power cord • The printed User's Guide What to bring the AC adapter with you may enter Hibernation mode after being in Sleep mode. English 28 Note... cushion it if it should fall. Taking the computer home When you to bring anything with you are not actively using the computer. If the power indicator is off but the Sleep indicator is turned off , the computer has entered Hibernation mode and is on, the computer has entered Sleep mode...
TravelMate 4020 User's Guide
Page 38
...are using the modem, check if the modem and connector is compatible with you: • AC adapter • Power cords that the local AC voltage and the AC adapter power cord specifications are safe, but do not put the computer through a metal detector. • Avoid exposing floppy disks to ...hand-held metal detectors. If not, purchase a power cord that is compatible with the computer When you are traveling • Spare, fully-charged battery packs • Additional printer driver files if you ...
...are using the modem, check if the modem and connector is compatible with you: • AC adapter • Power cords that the local AC voltage and the AC adapter power cord specifications are safe, but do not put the computer through a metal detector. • Avoid exposing floppy disks to ...hand-held metal detectors. If not, purchase a power cord that is compatible with the computer When you are traveling • Spare, fully-charged battery packs • Additional printer driver files if you ...
TravelMate 4020 User's Guide
Page 56
... sofa, rug or other controls may touch dangerous voltage points or short-out parts that are not sure of the type of power indicated on the power cord. This product should never be placed near water. 4 Do not place this product from overheating. If you to ensure reliable ... that the total ampere rating of the equipment plugged into the extension cord does not exceed the extension cord ampere rating. c If the product has been exposed to qualified service personnel under the following conditions: a When the power cord or plug is damaged or frayed. Use a water-moistened cloth for...
... sofa, rug or other controls may touch dangerous voltage points or short-out parts that are not sure of the type of power indicated on the power cord. This product should never be placed near water. 4 Do not place this product from overheating. If you to ensure reliable ... that the total ampere rating of the equipment plugged into the extension cord does not exceed the extension cord ampere rating. c If the product has been exposed to qualified service personnel under the following conditions: a When the power cord or plug is damaged or frayed. Use a water-moistened cloth for...
TravelMate 4020 User's Guide
Page 57
... the battery with this equipment. 17 Avoid using a telephone (other than a cordless type) during an electrical storm. VARO! It should be a remote risk of power supply cord set (provided in fire. EVITTER TOUTE EXPOSITION AUX RAYONS. Laser compliance statement The CD or DVD drive used batteries promptly. 14 To avoid hazard of...
... the battery with this equipment. 17 Avoid using a telephone (other than a cordless type) during an electrical storm. VARO! It should be a remote risk of power supply cord set (provided in fire. EVITTER TOUTE EXPOSITION AUX RAYONS. Laser compliance statement The CD or DVD drive used batteries promptly. 14 To avoid hazard of...