JVC GY-DV300 Instruction Manual page 29

Event Indications
When the gain and shutter speed are changed manually, the set condition is displayed for about 3 seconds
at the time the change is made.
Set Condition
When the gain value is changed
When the LOLUX gain mode is selected
When the shutter speed is changed
When the variable shutter speed is changed
When the shutter is NORMAL
(shutter speed: 1/50)
Event display area
GAIN -3dB to 18dB (1dB step)
LOLUX
SHUTTER 1/120, 1/250. 1/500, 1/1000, 1/2000
V.SHUTTER 1/50.1 - 1/2067.8
SHUTTER NORMAL
Event display area
Contents of Indication
E-29