IBM ThinkPad 340 Series Hardware Maintenance Manual

Also see for 360: Specifications Hardware Maintenance Manual Operating guide User guide Manual

Note: Removing and installing the battery packduring suspend mode should be done within oneminute. The resume operation must start. If theresume operation does not work, switching of powerfrom the battery pack to standby battery will not becorrect. Replace the DC/DC card.If replacing the DC/DC card does not resolve theproblem, replace the system board.Power Management FeaturesThree power management modes are provided by thecomputer to save power consumption and prolong batterypower.Standby Mode: When in standby mode the followingoccurs: The LCD backlight turns off. The hard disk motor stops.Events that cause the computer to enter the standbymode. Standby requested by the Fn key. (Fn+F3) No activity under auto-standby enabled by thefeature utility.Events that cause the computer to exit the standby mode(resume). Any key operation.Suspend Mode: When in suspend mode, thefollowing occur: The LCD backlight turns off. The LCD power is powered-off. The hard disk is powered-off. The CPU is stopped.In the ThinkPad Features Program, the computer can beset to “Will not suspend even if LCD is closed.”When the computer is powered with ac power and is usedwith one of the following IBM PC cards, the computer canenter thestandby mode only. The PC card and applicationprogram remain active. 3270 Emulation Credit Card Adapter 5250 Emulation Credit Card Adapter Token-Ring 16/4 Credit Card Adapter Credit Card Adapter for EthernetEvents that prevent the computer from entering thesuspend mode. While the communication link is running. When a pointing device (except a serial mouse) areselected in the Config menu of the Easy-Setup.ThinkPad 755CE, 755CSE, 755CV, 755CX (9545) 405