Turn On The Power Switch - Canon Speedlite 430EX User Manual

Turn on the Power Switch

About Auto Power Off
To save battery power, the power will turn off automatically after 90 sec.
of idle use. To turn on the Speedlite again, press the shutter button
halfway. Or press the Speedlite's test firing button.
A test firing cannot be fired while the camera's operation timer 4 or 0
is active.
The Speedlite's settings will be retained in memory even after the power
is turned off. To retain the Speedlite's settings when you replace the
batteries, replace the batteries within 1 minute after turning off the power.
10
Set the power switch to <K>.
1
The flash will start recycling.
Check that the flash is ready.
2
When the pilot lamp lights in red, the
flash is ready to fire.
To fire a test flash, press the pilot
lamp.