Sony PCG-FXA59 - Manual (Page 32)

Standby mode
In Standby Mode the notebook saves the current state of the system in RAM and switches off power to the CPU. The amber
power indicator flashes in this mode.
To activate Standby mode
To activate Standby mode, press the key combination Fn+Esc.
To return to normal mode
Press any key to return to normal mode.
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