Canon 0585C006 Instruction Manual page 19

Lock Function
By setting the power switch to <a>, you can disable the flash's
button and dial operations. It is effective when you want to prevent the
flash function settings from being accidentally changed after you set them.
If you operate a button or dial, <k> is displayed on the LCD panel.
LCD Panel Illumination
When a button or dial is operated, the LCD panel illuminates for approx.
12 sec (p). When setting a function, the illumination continues until
the setting is complete.
During normal flash shooting, when set as the sender unit in radio
transmission flash shooting (p.46), or when set as the "sender camera
unit" in linked shooting (p.67), the LCD panel illuminates in green. When it
is set as a receiver unit in wireless flash shooting or when set as a
"receiver camera unit" in linked shooting, the LCD panel illuminates in
orange.
For the LCD panel Illumination when set as the sender unit during radio
transmission wireless shooting, see page 54.
When Quick flash is fired during continuous shooting, underexposure may
occur since the flash output decreases.
The flash settings will remain in effect even after the power is turned off.

To retain the settings when replacing the batteries, replace the batteries
within 1 min. after turning off the power switch and removing the
batteries.
When the temperature of flash head has risen due to continuous flash

firing, the time until auto power off takes effect may increase.
You can fire a test flash while the power switch is set to <a>. Also,

when a button or dial is operated, the LCD panel illuminates.
Auto power off can be disabled (C.Fn-01/p.83).

You can change the setting of the LCD panel illumination (C.Fn-22/p.85).

You can change the color of the LCD panel illumination (P.Fn-02 to 04/

p.86).
You can disable Quick flash (P.Fn-06/p.87).

Turning on the Power
19