IBM 2652 Hardware Maintenance Manual - Page 53
Indicator, Meaning, Green, Blinking green, Turn off, When this indicator is on, do not put
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Product overview Indicator Meaning 3 Standby status Green: The computer is in standby mode. Blinking green: The computer is entering standby mode or hibernation mode, or is resuming normal operation. 4 Power on Green: The computer is on and ready to use. This indicator stays lit whenever the computer is on and is not in standby mode. 5 Scroll lock Green: Scroll Lock mode is enabled. The Arrow keys can be used as screen-scroll function keys. The cursor cannot be moved with the Arrow keys. Not all application programs support this function. To enable or disable Scroll Lock mode, press the ScrLk key. 6 Caps lock Green: Caps Lock mode is enabled. To enable or disable Caps Lock mode, press the Caps Lock key. 7 Num lock Green: The numeric keypad on the keyboard is enabled. To enable or disable the keypad, press and hold the Shift key, and press the NumLk (ScrLk) key. 8 Drive in use Green: Data is being read from or written to the hard-disk drive, the diskette drive, or the drive in the Ultrabay device. When this indicator is on, do not put the computer into standby mode or turn off the computer. 9 Ultrabay status Note: Do not move the system while the Green drive in use light is on. Sudden physical shock could cause drive errors. Green: An Ultrabay device is installed and in use. Blinking green: An Ultrabay device is in the process of being detached. Turn off: An Ultrabay device is ready to be attached or detached. Note: If you are using Windows 2000, the Ultrabay status indicator does not blink while an Ultrabay device is being detached. Instead, a message box pops up when the process is completed; then the indicator turns off. ThinkPad A30, A30p, A31, A31p 49