Sony STR-D590 - Manual (Page 21)

Problem Cause Solution
There is an abrupt loss of sound from
one or both of the speakers, or the
PROTECTOR indicator flickers in the
display window.
A short-circuit problem activates the
protective circuit.
Turn off the unit, eliminate the short-
circuit problem and turn on the power
again. If there is no short-circuit
problem, consult your nearest Sony
dealer.
Sound transmitted from the speakers
is reversed.
The speakers are not connected
correctly.
Connect the right speaker to the R
SPEAKER terminals and the left
speaker to the L SPEAKER terminals.
There is lack of bass sound or the
instrument position is obscure.
The 0/© connection of the speaker
is reversed.
Connect the speaker with the correct
phase.
Severe hum or noise is heard. The connecting cords are not shielded
type.
Use shielded type cords.
A transformer, motor, TV or fluorescent
light affects the connecting cords.
Place the connecting cords in a
location away from a transformer or
motor, and at least 3 meters (10 feet)
from a TV set or a fluorescent light.
The audio components are too close
to a TV set. If both are used at the same time,
separate the TV from the audio
components.
The unit is not grounded, Connect the ground wire to the
antenna ground terminal.
The connections are loose. Make secure connections.
The plugs and jacks are dirty. Wipe the plugs and jacks with a cloth
lightly dampened with alcohol.
Surround effect cannot be obtained. The unit is in a wrong mode. Press SURROUND MODE to set the
surround mode.
Surround circuit is turned off. Press SURROUND ON/OFF,
The remote commander will not
operate.
The batteries are exhausted. Replace the batteries with new ones.
The commander head is not pointed
toward the unit's front.
Point the commander head toward the
receiver.
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