Contents
1
Introduction
............................
2 Precautions
............................
3 Description
............................
3.1 General
...........................
3.2
IVA-
Indivtcual
Virtual
Acoustics
.............
3.3 Dolby Surround Pro
Logic
Decoder
..........
4
Unpocking
............................
5 Controls
..............................
5.1 Headphoones
.......................
5.2 Transmitter
..........................
6 Operating
Notes
........................
6.1 Connecting the Transmitter
to
AC Power.
......
6.2 Connecting the Transmitter
to
Your
Audio
Source.
6.3 Charging the
Batteries
in the Headphones
.....
6.4 Replacing
Batteries
....................
6.5
Setting
Up the System
‘_
6.6 Mode
Switch
........................
6.7 CHARGE LED Status
...................
7 Importont
Notes
.........................
8
Specifications.
..........................
9 Troubleshooting
.........................
10
Warranty
............................
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1
Introduction
Dear customer:
Thank you for
purchosing
an AKG
product.
The Hearo 777
wireless
heodphone
System
is
bosed
on
advanced
UHF
transmission
technology.
The
IVA
processor
and the Dolby
Surround Pro
togic
decoder
provide
Optimum
spatiol
reproduction
for Speech,
music,
TV
and
Video
Sound,
multimedia
PC
applicati-
ons, and
Video
gomes.
In
Order
to make
Optimum
use
of the benefits of your Heoro 777, please take a few
minutes
to reod the
instructions
below carefully
before operating the
equipment.
Pleose keep the
manual
for future reference.
2 Precautions
1.
Operote the heodphones
with
two
AAA
size
1
.2
V rechargeable
(supplied)
or 1
.5
V dry
batteries
only.
2. Never try to
Charge
dry
batteries
using
the
tronsmitter’s
chorging feoture.
3.
Before chorging the heodphones
botteries,
alwoys moke sure that the
botteries
in the heodphones are rechorgeoble
types.
4. Dispose of spent dry or rechargeoble
batteries
conforming to
local
waste
disposol
rules.
Never throw
batteries
into the fire
5. Operote the
tronsmrtter
with
the
supplied
12 VDC, 300 mA AC adopter
only.
Check thot the AC voltage stoted on
the
AC
odapter
is
the some OS thot
avoilable
rn
your
country.
Using
the tronsmitter
with
o different AC odopter
voids
the
worranty
6. Always
switch
the heodphones OFF
after
use
7. Never try to open the heodphone or
tronsmitter
case.
Refer
servicing
to
quolified
Service
Personne1
only.
8. Never ploce the
equipment
neor heot
sources
such
as
radiotors
or
electric
heaters, or expose it to
direct
sunlight,
excessive
dust,
humidity,
rain,
vibrations,
or
impocts.
9. Never use olcohol, petroleum-based cleoners, or
Point
thinners to
clean
the
headphone.or
tronsmitter
tose.
10.
If
you do not
use
your
transmitter
for
an
extended
period
of time
(e.g.,
when troveling), disconnect the AC odopter from the AC
outlet.
1 1 Also refer to
section
7 Importont
Notes.
I
-
3 Description
3.1 General
/
The Hearo 777 heodphone
System
.
uses
state-of-thwrt
UHF
rodio transmission
technology;
.
uses
outomatic
gain
control
(AGC) to modulote the
transmitter
RF
section
for high transmission
quolity;
10
