Sanyo VCC-XZN600P Instruction Manual page 87

When the shutter speed setting (SHUTTER) is set to "LONG"
When the [V-RESO.UP] option in the ZOOM SETTING screen is set to "ON", the option is changed to
"OFF".
When "MANU" is selected for [IRIS] and the electronic iris (EI) option is set to "ON"
When "SHORT" or "LONG" is selected for the [SHUTTER] setting, the option is changed to "OFF".
When the Day/Night function (DAY/NIGHT) is set to "AUTO"
When the [AGC] option is set to "OFF", the option is changed to "ON".
When "ON" is selected for [AGC] and the digital noise reduction (DNR) is set to "ON"
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