Copyright by beyerdynamic 19
Battery voltage
In service mode press “CH
” to check the battery voltage.
The battery voltage can be read alternately with the sign “bA” and a two-digit number.
The display should be interpreted as follows:
voltage is e.g. “38” this equates to 3.8 Volts.
Min./Max. battery voltage:
Disposable batteries 3.3V – 4.5V
Rechargeable batteries 3.9V – 4.2V
Display of battery check (bA)
IR-field strength
Press “CH
” again to scroll to the IR-field strength meter “rF” will be displayed alternately with
“Hi” (high), “no” (normal) or “Lo” (low) and the last chosen channel number (2-digit).
For instance: (rF.....Hi.....rF..... Hi…..rF…...01.....rF.....Hi.....)
The IR-field strength of other channels can be checked by pressing “VOL
” or “VOL
”.
Low: Field strength lower than 28 dBA
Normal: Field strength between 30 and 40 dBA
High: Field strength higher than 40 dBA
Signal > 40 dBA
Display of the IR-field strength (rF) IR-field strength „Hi“ (optimum reception)
If muting is activated and the IR-field strength is lower than 20dBA, the audio signal will be
automatically switched off.
