HEARO 787 SURROUND
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4 Operating Notes
4.4 Setting Up the System
Note:
4.5 MODE Key
4.6 Replacing Ear Pads
Important!
1. Remove the headphones from the transmitter.
2. Switch ON the audio source to which your transmitter is connected.
3. Press the ON switch (6) to switch the transmitter on.
The ON switch (5) will illuminate green.
The MODE and FREQ settings will be the same as those you have selected before switching the transmit-
ter off. (As delivered, the transmitter is set to STEREO mode and FREQ 1.)
The label backlighting will come on every time you switch the transmitter on even if you switched the back-
lighting off before.
If there is audio signal present at the transmitter input, the LEVEL label (10) will flicker in step with the sig-
nal.
4. Switch the headphones on by pushing the POWER button (1).
The status LED (1a) will illuminate green.
5. Press the AUTOTUNING switch (4) on the headphones.
The Autotuning function will automatically tune the receiver to the carrier frequency set on the transmitter.
After a few seconds, you should hear the signal in the headphones clearly and free of interference.
If your first try fails, press the FREQ key (8) on the transmitter front panel to select a different carrier fre-
quency and press AUTOTUNING (4) again. Be sure to stay near the transmitter during this operation.
6. Set the VOLUME control (5) on the headphones to the desired volume level.
If the transmitter signal is disturbed, e.g., by reflections (multipath reception) or shadow effects, the head-
phones will automatically mute. This function eliminates interference-related noise.
As delivered, the transmitter is set to STEREO mode.
Press the MODE key (9) to step though the playback modes of your headphones system:
Refer to section 4.3. Ear pads for the HEARO 787 SURROUND headphones are available as spare parts from
your nearest AKG Service Center or AKG Vienna. For more information, visit www.akg.com and click
”Contact” - ”International Distributors”.
1. Disconnect the AC adapter from the power outlet.
2. Use a cloth moistened (not wet!) with water to clean the surfaces of the mixer.
Never use caustic or scouring cleaners or cleaning agents containing alcohol or solvents since
these may damage enamel or plastic parts.
IVA LOGIC7:
The LOGIC7 decoder is on and con-
stantly monitors the input signal. Depending on
the input signal format, the decoder will generate
the required number of audio signals. The IVA
processor will simulate the corresponding number
of loudspeakers (up to eight for LOGIC7 input sig-
nals).
We recommend this mode for all types of audio
signals (music, movies, games).
IVA PRO LOGIC:
The Dolby Surround Pro Logic
decoder, in conjunction with the IVA processor,
simulates five loudspeaker channels (front left,
center, right and rear left and right) for surround
sound in the headphones. This channel configura-
tion will not change.
We recommend this mode for movies and Dolby
Surround recordings.
IVA STEREO:
The IVA processor converts the stereo
input signal to a binaural signal. The ear matching
function provides a natural sonic perspective with
no inside localization.
We recommend this mode for natural reproduc-
tion of stereo music and speech signals.
STEREO:
The Pro Logic decoder, the LOGIC7 de-
coder, and the IVA processor are deactivated and
you will hear the unchanged stereo input signal in
the headphones.
Labels LOGIC7 and IVA are illuminated.
Labels PRO LOGIC and IVA are illuminated.
Labels IVA and STEREO are illuminated.
The STEREO label is illuminated.
5 Cleaning
