Sony HVL-F43M - Manuel (Page 16)

GB 16
Turning on the power
Set the POWER switch to ON.
The power of the flash unit turns on.
• When the power of the flash unit is turned on, the LCD panel lights up.
• If nothing appears on the LCD panel when the POWER switch is set to ON,
check the orientation of the batteries.
To turn the power off
Set the POWER switch to OFF.