Beyerdynamic Opus 900 Stereo System User Manual


 
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1.4.9 Lock Function
The receivers have a lock function to avoid the setting of the receiver configuration to be changed
inadvertently.
How to activate the “Lock” Function
Press the ACT and Scan buttons simultaneously.
A red padlocked symbol is displayed.
Now all buttons, except the ACT button are locked.
By turning the menu control the current receiving channel configuration can still be displayed.
The “Lock” function is still activated when the receiver is switched off and on again.
How to deactivate the “Lock” Function
Press the ACT and Scan buttons simultaneously. The red padlocked symbol will disappear.
1.5 Frequency Transmission to Transmitter (ACT Function)
The frequency of the receiver is transmitted to the appropriate transmitter via infrared.
Press the ACT button to activate the ACT function. “ACT” is displayed.
Hold the infrared diode of the switched on transmitter 20 cm at maximum in front of the
transmitting infrared diode of the receiver between the ACT and Scan button.
The receiver displays “ACT” during the transmission.
As soon as the transmitter displays the same frequency as the receiver, the transmission is finished.
The receiver displays the state before starting the frequency transmission.
Important:
In order to avoid interferences, the frequency of one receiver should be transmitted to one transmitter
only.
NE 900 S NE 900 D / Q
Infrared diode
Infrared diode