28
Additional technical information
Function of the treble boost control
By means of the transmitter’s steplessly adjustable treble boost
control the audio signal is boosted as shown in the diagram.
The treble boost control allows you to select one of the curves shown in
the diagram below.
Changing the operating mode
The transmitter can be set to a different operating mode. This is useful
when the sound of your sound source is very low and the transmitter
therefore does not always switch on automatically.
왘
Use a screwdriver to turn the treble boost
control
H
the left or right until the sound can
be heard very well.
The position “0” corresponds to a minimum
boost, the position “MAX” corresponds to a
maximum boost, and the control is factory-
preset to the medium position.
왘
Press the “speech intelligibility” button
D
for approx. 5 seconds.
The indicator
E
goes off. The charging indi-
cator for the spare rechargeable battery
A
flashes several times:
red:
operating mode 2
green:
operating mode 1 (factory-preset)
If the operating mode was changed success-
fully, the charging indicator for the spare
rechargeable
A
goes off and the indicator
E
lights up again.
H
10
0.1
1
10
20
dB
kHz
“MAX”
“0”
Factory-preset
setting
E
D
A
Summary of Contents for SET 900
Page 1: ...infrared TV listening system Instruction manual mobile sound booster and Set 900...
Page 2: ...I 1 2 3 4 5 5 8 6 7...
Page 3: ...II E D 0 9 A B I H G F C...
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