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2 for the deck connected to TAPE 2 terminals.
When set to "1 -* 2" position, you can perform
tape-to.-tape copying from TAPE 1 to TAPE 2
deck.
Be sure to set this selector to SOURCE when
listening to source selected by the function
selector.
(9) Phono MM/MC Selector
The unit has a built-in MC head amplifier. This
selector is used to receive MM (moving magnet)
or MC (moving coil) phono cartridge signal with
an appropriate gain. In MC position, the built-in
MC head amplifier is activated. When your
turntable uses an MC cartridge, set the selector
to MC position. When MM cartridge is used, set
the selector to MM position.
(10) Function Indicator
Those lamps indicate selected function among
TAPE 1, TAPE2, TUNER, C.D., MM (PHONO),
and MC (PHONO).
(11) Function Selector
The Function selector is effective when the
Tape Monitor selector is set to SOURCE. These
selector buttons are used to select the desired
input
source.
Depress
PHONO
button
to
listen to signal from turntable, C.D. button for
signal from compact disc player, and TUNER
button for signal from tuner.
OPERATION
• Before commencing operation, check to
see
if all
connections are properly
made.
• Always be sure to set the volume control
to the minimum position before turning on
power.
Listening from turntable
1. Set Tape Monitor selector to SOURCE.
2. Depress PHONO button on the Function
selector, and set Phono MM/MC selector to the
appropriate position, MM or MC. according to
the cartridge type used.
3. Start playing turntable, and raise the
volume to the desired level.
Listening from compact disc player or
tuner
1. Set Tape Monitor selector to SOURCE.
2. To listen to a compact disc, depress
C.D. button on the function selector; depress
TUNER button to receive radio broadcast.
3. Play the compact disc or tune in to the
desired station, according to instructions given
for the equipment.
4. Raise the volume to the desired level.
Playing back tape deck
1. Set Tape Monitor selector to TAPE 1 or
TAPE 2 position according to the tape deck
you are going to play back.
2. Start playback.
3. Raise the volume to the desired level.
Recording program source
Play the desired program source according to
the procedures mentioned above. The signal
from the source will be sent through TAPE
MONITOR OUT terminals on unit's rear panel.
Put the tape deck in the record mode to record
the
signal.
During recording,
operation of
Volume control, and Mode selector will have
no effect on the signal being sent through
TAPE MONITOR OUT terminals.
Dubbing (tape-to-tape copying)
By hooking up two tape decks, dubbing of
prerecorded tape can be performed. The unit
allows dubbing from TAPE 1 to TAPE 2 only.
1. Set Tape Monitor selector to "1 -* 2"
position.
2. Play back TAPE 1 deck, and put TAPE 2
deck in record mode, then dubbing starts.
During dubbing, you can listen to the signal
with volume or mode selector set as desired;
they have no effect on dubbing.
HUM AND NOISE
In any high fidelity installation, hum may be
caused by the interconnection of a turntable,
tuner and amplifier, and speakers as the result
of wiring, different grounding or locations of
components.
If hum is experienced with your unit, discon¬
nect everything but the speakers from the unit.
Plug in the turntable and if hum or howling
appears, move the turntable away from the
speakers as much as possible.
Note hum may also be induced by defective
cable connections or by running the cables too
close to a strong AC field.
When your unit picks up noise during the
reception of broadcasts, causes are mostly due
to external objects such as fluorescent lamps
and house appliances using motor or thermo¬
stat, or others that may induce the noise.
Either relocating the unit away from the noise
sources or using an improved outdoor antenna
may readily solve the problem.
In the event you cannot find the cause, consult
your dealer or a qualified electrician.
PROTECTION CIRCUIT
The RA-870 incorporates all possible safety
measures by combining multiple protection
circuits to prevent accident or damage.
If for some reason the protection circuit is
activated, there will be a sudden cut-off of
sound from the speakers, and the protection
indicator will light up.
If no sound is produced, the reason may be due
to the functioning of the protection circuit.
First, turn off the power and disconnect the
plug from the electrical outlet, and check to be
sure that the speaker cables are not short-
circuited. Also check to make sure the im¬
pedance of each speaker is 8 ohms or over (if it
is below 8 ohms, the unit will be overloaded
due to low impedance).
After checking the above points, turn the
power on, and the protection circuit will be
automatically deactivated and the unit will start
functioning again.
If the protection circuit is activated again de¬
spite taking the above action, cut off the power
supply from your entire audio system and con¬
sult your dealer or a qualified electrician.
Note:
The protection circuit will normally
operate to prevent a popping noise from being
generated upon turning on the power or upon
operating Phono MM/MC selector. No sound is
produced for several seconds upon switching.
VOLTAGE SELECTION
Not available for U.K., Canada and Scandinavia
The unit is a variable voltage equipment that
can run on 120V, 220V or 240V power supply.
Your unit should already be preset at the
proper voltage for use in your area. However, if
you move to an area where the power supply
voltage is different, consult your dealer.
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