Pioneer A-550R-S Service Manual - Page 25
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6. PANEL FACILITIES
The illustration shows model A-550R.
Model A-450R is not equipped with © and (9.
mac saecros
: (7)
FRONT PANEL [4]
@) MAIN POWER switch/indicator
@ INPUT SELECTOR switch
Press to set the unit to the power STANDBY or ON condition.
Use to select the playback source.
Press again to set to OFF.
LINE:
For playback with a component connected to LINE
@ STANDBY/ON
button
terminal.
TUNER:
For AM or FM broadcast reception with a tuner.
STANDBY
indicator
PHONO:
For record playback with a turntable.
To use the amplifier, press the MAIN POWER switch ON, then
press the STANDBY/ON button so that the STANDBY indica-
NOTE:
tor goes off. When the STANDBY indicator lights, the unit is
* With the A-450R, you can use an MM cartridge or a high-
in STANDBY.
output MC cartridge fover 7 mV).
¢
According to the type of cartridge used with the A-550R,
When set to the STANDBY position, the main power flow is cut
you can select MM
or MC
with the PHONO
SELECTOR
and the unit is no longer fully operational. A minute flow of power
feeds the unit to maintain operation readiness.
button.
NOTE:
CD:
For compact disc playback with a CD player.
When not using the unit for extended periods of time, set the
DAT/TAPE 1:
MAIN POWER switch to OFF.
For playback with a cassette deck or digital audio
tape deck connected to DAT/TAPE
1 terminals.
TAPE 2:
For playback with a cassette deck connected
to
TAPE 2 terminals.
® VOLUME CONTROL
@ REC SELECTOR
switch
When this switch is set to a position other than SOURCE or OFF,
the equipment selected by REC SELECTOR switch can be record-
ed from, irrespective of the settings of INPUT SELECTOR switch
and DIRECT button.
Use to adjust the volume level.
TUNER:
Torecord from the equipment connected to TUNER
This volume knob consists of two volume controls. Because you
terminals.
can adjust L (left) and R (right) channel volume levels indepen-
CD:
To record from the equipment connected to CD ter-
dently, it also functions as a balance control.
minals.
OFF:
In this position, nothing from REC terminals of
[Example]
DAT/TAPE 1 and TAPE 2 is output. Set to this posi-
To raise R (right) channel volume level,
tion when not recording; the cassette deck will be
prevent the L knob from turning with one
disconnected, improving sound quality.
hand, and turn the R knob with the other
eG
SOURCE:
To record from the equipment selected by INPUT
hand.
R
SELECTOR switch.
TAPE
1 P2:
NOTE:
To
record
(copy)
from
the
cassette
deck
of
This unit is equipped with a circuit that attenuates
LOUDNESS
DAT/TAPE 1 terminals, to the cassette deck of TAPE
and TONE effect as volume is turned up.
2 terminals.
TAPE 2 1:
To record (copy) from the cassette deck of TAPE 2
terminals, to the cassette deck of DAT/TAPE 1 ter-
minais.
31