Sony HVL-F58AM - Manual (Page 16)

16
Checking Batteries
The indicator on the data panel blinks when the batteries are low.
• If nothing appears on the LCD panel when the POWER switch is set to ON,
check the orientation of the batteries.
blinking
Changing the batteries is recommended.
The flash unit can still be used when the
TEST button lights up in amber.
Only blinking
Flash cannot be used.
Insert new batteries.