Johansson Profino 6610, User Manual, Page: 12 / 84

12
Each UHF input has a 20 dB switchable amplifier.
This is used as additional 20 dB attenuator for high levels up to 105 dBμV.
To switch off the UHF input amplifier.
> Select the UHF input to be attenuated.
• Turn the button to select the Filter-Input mode.
The LED is green.
> Push the rotary button to enter the selected mode.
The LED is now red
> Turn the button to select the input.
Turn continuously the button through every cluster to have access to the input selection.
All LED’s of selected input
are activated
> Push the button to confirm.
The LED is green.
• Turn the button to select the Level mode.
The LED is green.
> Push the rotary button to enter the selected mode.
The LED is now red.
> Turn the button to switch off the 20 dB amplifier.
In ‘OFF’ position
the input signal is
20 dB attenuated.
> Push the button to confirm.
The LED is green.
Filter Input
Filter Input
Filter Input
Level
Level
Level
1
2