Head Power Status LED
The head power status is indicated by a different LED, which is located at the lower edge of the head (#3 in figure on page 9).
LED Color to Observer
State
Off
Red
Amber
Green
No input power to head — Off mode
Input power present, power switch off — Off mode
Input power present — Sleep mode
Input power present — On mode
Touch Power Status LED
The touch power status is indicated by a separate LED located at the lower edge of the head and to the right of the Head Power Status LED (#4 in figure on page 9). This feature is available for AT and APR 7010.
LED Color to Observer
State
Off
Red
Amber
Green
No input power — Off mode
Input power present, power switch off — Off mode
Input power present — Sleep mode
Input power present — On mode
HDD Activity LED
Hard disk drive activity is indicated by a flashing LED on the base, just under the computer power LED (#2 in the figure on page 9). Reading from and writing to the disk causes the LED to flash.
LED Color to Observer
State
Off | No activity |
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Flashes green | Activity |
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