Grundig HiFi-Studio RPC 340 Bedienungsanleitung Seite 5

Switching On and Off
The receiver is switched on and off by
means of the toggle switch @ situated on
the far left. Top position = on; bottem
position = off.
Loudspeaker Selection Switches
The toggle switches @ allow to switch on
and off separately the two loudspeaker
groups. Top position = on; bottom posi-
tion = off.
Function Selection
Depress the corresponding button situated
below the tuning scale:
TA = Record player (it is possible
to simultaneously record the
gramophone record using
the built-in cassette recorder
or an external tape/cassette
recorder)
TB = Tape replay from an external
tape recorder/cassette
recorder (it is possible to
record the signal using the
built-in cassette recorder)
CASS = Replay from built-in cassette
recorder (it is possible to
record the signal using an
external tape/cassette
recorder)
UKW = FM reception (touch in addi-
tion one of the Sensor fields
U/U1...U 7).
LW = Long wave band
MW = Medium wave band
KW = Short wave band
Station Tuning
Tune in the desired station with the tuning
control @ situated on the right of the
scale. Tune for maximum deflection on the
tuning meter @. This meter is also used
as field strength meter on FM (see corres-
ponding paragraph).
Volume Setting
Adjust the volume with the knob @.
10
Stereo Radio Reception
Your Studio is equipped for the reception
of FM stereo transmittors using the FM-
multiplex system (MPX). The integrated
circuit stereo "PLL" decoder is fitted with
an automatic switch so that the receiver is
automatically switched to stereo when a
stereo transmission is received. This
automatic switch is effective when the
MONO button @ is not depressed.
In this case the red stereo lamp @® will
light up as soon as stereo programme is
received.
Automatic Frequency Control on FM (AFC)
The automatic frequency contro! is in
operation when the AFC button @ is de-
pressed. It locks in a station once it is
tuned in. When tuning in a different
FM station switch off the AFC by releasing
the AFC button (press again). Do not use
the automatic frequency control to receive
a weak station close to a much stronger
one otherwise the receiver will lock onto
the stronger station of the two with the
automatic frequency contro! in operation.
FM/VHF Muting
With the MUTING button © depressed,
interstation noise wil! be muted when
tuning on the VHF/FM band. It may be
found that it is only possible to listen to
very weak VHF stations when the muting
circuit is switched off (button @ released).
FM Sensor Fields
The Sensor fields U1...U 7 @ permit
pre-selection of up to seven FM stations.
These are tuned in by the knurled wheels
below the fields on the bottom of the
unit and you then only have to touch the
appropriate Sensor field to obtain the
desired programme. For pre-selection pro-
ceed as follows:
@ Depress the FM wave band button @.
Switch off the AFC.
e
@ Touch the desired Sensor field
(it lights up).
@ Tune in the desired station by turning
the knurled wheel below the selected
Sensor field. Tune for maximum pointer
deflection on the tuning meter @.
Meter @ shows you the approximate
frequency of the station.
Proceed in the same way for each of
the seven Sensor fields.
@ Turn on AFC again.
When changing to another waveband (LW,
MW, SW) or when selecting Phono/Tape
operation, the last touched Sensor field
will stay in "Stand-by" position. This
means that, when switching back to FM '
operation, the station of the last touched
Sensor field will immediately be heard.
FM Field Strength {ndicator
The tuning meter of the set serves also as
field strength indicator.
This is particularly useful for the proper
orientation of a rotating multi-element
FM dipole. It is also possible to identify
the locally strongest FM transmitter from
others, all transmitting the same pro-
gramme.
A properly orientated aerial — allowing
maximum field strength reception — also
reduces multi-path reception caused by
signal reflections.
The use of the field strength meter also
shows if any particular programme is
received with a sufficiently high signal
level. The high sensitivity of the set
ensures perfect reception for the majority
of transmitters, even if these only mar-
ginally exceed the ambient noise level. For
stereo transmissions, on the other hand,
the aerial signal must be at least ten times
greater. Technical limitations and the
method of stereo transmissions are the
reason for this. The lower level for ade-
quate stereo receptions with this unit is
35 uV for a signal/noise ratio of 44.5 dB
(to DIN 45 500). At a lower field strength,
reception will become noisy.
TUNING
The shown aerial voltage are approximate
values only.