Sennheiser HE 1 Instruction manual HE 1 - Page 46

Calibrating the mechanical components, UNBALANCED

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Servicing the HE 1 | Calibrating the mechanical components 1 INPUT OPTICAL USB COAXIAL OFF UNBALANCED BALANCED CROSS FEED OFF LOW HIGH 2 OUTPUT PHONES LINE BOX CONTROL BOX 1 O/C BOX 2 O/C ON Calibrating the mechanical components If the mechanical components of the HE 1 are decalibrated (e.g. the rotary switches do not switch correctly, the glass cover does not open or close correctly or the amplifier tubes do not extend or retract correctly), it might be necessary to recalibrate them: 1. Set the power switch to OFF to switch the HE 1 off and wait until the status LED goes off (up to 30 seconds). 2. Simultaneously press the UNBALANCED and the BALANCED button on the remote control and then set the power switch to ON to switch the HE 1 on. The status LED flashes green. The mechanical components are calibrated (the rotary switches switch through all the settings one after the other, the glass cover opens and closes, and the operating elements and the amplifier tubes extend and retract). Once the calibration process is completed, the status LED lights up red. The HE 1 is switched off (standby). When calibrating the mechanical components, make sure to point the remote control at the remote control sensor located on the front bottom of the amplifier. Otherwise the amplifier switches on normally. In order to ensure proper functioning of the HE 1, the mechanical components are automatically calibrated at predetermined time intervals. The automatic calibration process starts during switch-off (standby) of the HE 1. 44

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44
Servicing the HE 1
|
Calibrating the mechanical components
Calibrating the mechanical components
If the mechanical components of the HE 1 are decalibrated (e.g. the rotary
switches do not switch correctly, the glass cover does not open or close
correctly or the amplifier tubes do not extend or retract correctly), it might be
necessary to recalibrate them:
1. Set the power switch to
OFF
to switch the HE 1 off and wait until the status
LED goes off (up to 30 seconds).
2. Simultaneously press the
UNBALANCED
and the
BALANCED
button on the
remote control and then set the power switch to
ON
to switch the HE 1 on.
The status LED flashes green. The mechanical components are calibrated
(the rotary switches switch through all the settings one after the other, the
glass cover opens and closes, and the operating elements and the amplifier
tubes extend and retract). Once the calibration process is completed, the
status LED lights up red. The HE 1 is switched off (standby).
When calibrating the mechanical components, make sure to point the
remote control at the remote control sensor located on the front bottom
of the amplifier. Otherwise the amplifier switches on normally.
In order to ensure proper functioning of the HE 1, the mechanical
components are automatically calibrated at predetermined time
intervals. The automatic calibration process starts during switch-off
(standby) of the HE 1.
OUTPUT
LOW
HIGH
OFF
LINE
PHONES
BOX CONTROL
BOX 2 O/C
BOX 1 O/C
OFF
ON
1
2