SECTION
4
Fault
sources Troubleshooting
ll------lllll
Station scan does not
function
The stations are inaudible
Station
memories
selected
cannot be
The tuner cannot
be operated
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Before
you
suspect
a fault in the tuner, make
sure that the unit
is
correctly
installed and that
it is being operated in accordance with these
instructions.
ls
your
antenna
connected correctly?
ls the corresponding
antenna input A or
B
switched on? Press ANTENNA
l22l
keV
Have
you
activated the tuning mode?
Press
TUNING
[14]
key.
ls
your
tuner
correctly connected to the ampli-
f
ier?
ls
your
amplifier set to the correct
signal
source
(TUNER)Z
ls the setting for the output
level
or
the station
Ievel
too
low? This can be verified by
reestab-
lishing the
factory
settings
(RESTORE
NOMI-
NAL?) by
pressing
the LEVEL
[21]
key.
ls
your
tuner
in
station
mode?
When the hinged
cover
is closed,
the
tuner al-
ways operates in
station
mode. This mode
can also
be activated by
pressing
the
STATION
[18]
key
Did
you press
the ENTER
[6]
key after select-
ing
the station number with the numeric keys
l7l?
A station memory is not retrieved
until
the
ENTER
[6]
key
is
pressed.
Your
tuner is controlled and monitored by a
microprocessor.
This microprocessor is auto-
matically initialized when
the line
voltage is
applied.
Faults in
the AC supply
system or other
faults
can
putthe
microprocessor
into an undefined
state. The tuner can no longer
be operated.
In order to reinitialize
the
microprocessor,
press
the RESET
button
located
above the
RE-
CALL
[16]
key
by means of a
pointed
object
(bent
open
paper
clip).
lf the
power
plug
is readily
accessible, it is bet-
ter to disconnect it from
the AC outlet
for
approx.
15 seconds rather than
pressing
the
RESET button.
During
the
initialization
of the microprocessor
certain
segments of the display
111l
may
briefly light
up.
This is
a
normal
process
and
does
not
damage the unit.
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15
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