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Troubleshooting Guide
Problem
During disc play
The sound lacks clarity and
volume.
Probable cause(s)
The phono cartridge selector is incorrectly set to
the "MM" position when a moving-coil type
cartridge is being used.
Suggested remedy
Set it to the '"'MC" position.
The high-frequency range
cannot be clearly heard.
The phono cartridge selector is incorrectly set to
the "MC" position when a moving-magnet type
cartridge is being used.
a
¢ Set it to the "'MM" position.
Problems noted at all times
No sound is heard when the
power is switched ON.
The power cord plug is not completely inserted.
© Confirm that the power cord plug is connected
completely.
Connections are incomplete or incorrect to the
speaker systems, etc.
¢ Check to be sure that all connection wires are
correctly connected.
The input selector's setting is incorrect.
¢ Check to be sure that the selection of the desired
The speaker selectors are set incorrectly.
sound source is made correctly.
¢ Set them to the correct position.
When listening to stereo
sound, the sound lacks
depth (i.e. thin bass, tinny
sound).
When listening to stereo
sound, the left and right
sounds are reversed.
A low-pitched noise ("hum"
or "buzz") is heard.
Sound is not heard from
one of the speaker
systems.
One of the speakers is connected out of phase
((+)>(-), (-)-(4+)].
The left and right speaker connections, source
connections, or graphic equalizer connections
are reversed.
The power cord or a fluorescent light, etc., is near
the connection wires.
The speaker wires are disconnected.
The balance control is set too far to one side.
e Reconnect the speakers maintaining proper
polarity [i.e., (+)>(+), (~)>(~)].
¢ Check all connections and correct them if
necessary.
¢ Try separating this unit as far as possible from the
electric appliance.
e Check and correct the connections of the speaker
wires.
e Set so that sounds are heard at the center,
between the speaker systems.
Sound stops during a
performance, or no sound
is heard when the power is
switched ON.
The protection circuitry has functioned because
the positive and negative speaker connection
wires are "shorted" or speaker systems with an
impedance less than the indicated rated
impedance of the amplifier are used.
DC voltage appears in the output, causing the
protection circuitry to function.
Maintenance
To clean this unit, use a soft, dry cloth.
For very dirty surfaces, dip a soft cloth in a weak soap-and-water
solution and wring well. After clean ing, wipe with a soft, dry cloth.
4
¢ Switch OFF the power, and, after determining and
correcting the cause, switch ON the power once
again.
¢ Use a speaker system of the proper impedance
rating.
Never use alcohol, paint thinner, benzine, or a chemically treated
cloth to clean this unit.
Such chemicals may damage the unit's finish.
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