Muting Functions; Error Messages - Sony WRR-802A Bedienungsanleitung

Operation

Muting Functions

This unit has the following three muting functions, which
work in combination.
(1) Muting by RF input level
As sufficient S/N for the audio output may not be obtained if
no RF signal is received or the RF input level is low, the
audio output can be muted when the RF input level falls
below the muting level.
(2) Tone squelch
The audio output is obtained only when the unit receives an
RF signal which includes a specified tone signal. The audio
output is muted to eliminate noise which may be heard when
the transmitter is turned on/off or the unit receives an
interference RF signal.
(3) Noise squelch
The audio output is muted to eliminate noise which may be
heard when there is such excessive interference RF signal
that the tone squelch does not work.
To turn off the muting functions
While holding down the GP and CH buttons, turn the
POWER switch to ON. All indications momentarily appear,
then go off. "OFF" is then displayed. This procedure cancels
all three muting functions at the same time.
To turn on the muting functions
Turn the POWER switch to OFF, then to ON again. The
three muting functions are activated at the same time.
12 GB

Error Messages

Apart from the normal indications, the following error
messages may appear on the display.
Message Meaning
Err 01
An error has occurred in
the backup memory data.
Err 02
The PLL-synthesized
circuit has a malfunction.
NO TONE As no tone signal is
available or a tone signal
other than 32.768 kHz is
being received, the audio
signal output is muted.
Remedy
The memory data is
initialized. Reset the
group and channel
settings.
Contact your nearest
Sony dealer.
Make sure that the
transmitter is turned on.
If it is, then the problem
lies in the transmitter's
tone signal generator or
the tuner's tone squelch
circuit. Contact your
nearest Sony dealer.