Sennheiser HE 1 User Manual page 51

Problem
The bass reproduction is very
powerful
The storage box does not open
after switch-on
The remote control does not
function properly or has a lim-
ited range.
The rotary switches do not
switch to the desired setting,
the glass cover and/or the am-
plifier tubes do not close flush
During switch-off, the rotary
switches switch through all the
settings one after the other.
The signal level of the INPUT
audio inputs cannot be ad-
justed, the status LED lights up
red.
The HE 1 does not react to any
operation
If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed solutions,
please contact your Sennheiser partner for assistance (see "Contact" on page 4).
Possible cause
The crossfeed function is set to
HIGH.
The OUTPUT rotary switch is set
to LINE.
The separate headphone
storage box is connected to the
HEADPHONE 1 socket.
The battery is exhausted.
A lot of sunlight/extraneous light
(fluorescent lamps with electronic
control gear) can reduce the
range of the remote control.
The rotary switches are/glass
cover is/amplifier tubes are
decalibrated.
This is no malfunction – the
rotary switches are automatically
recalibrated after approx. 500
hours of operation.
The volume control is set to
minimum (turned fully to the
left).
The function of the HE 1 is faulty.
Corrective action
Set the crossfeed function to LOW or
OFF.
Set the OUTPUT rotary switch to
PHONES.
Only connect the separate headphone
storage box to the HEADPHONE 2
socket.
Replace the battery.
Do not expose the HE 1 to direct sun-
light/extraneous light.
Start the calibration of the mechanical
components.
Once the calibration process is
completed, the HE 1 switches off
(standby).
Increase the volume to adjust the signal
level.
Disconnect the HE 1 from the power
supply system and switch it on normally
once the LED has gone off (up to 30
seconds).
Reset the HE 1 to the factory default
settings.
If a problem occurs ...
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