Sony STR-D515 - Manual (Page 20)

Troubleshooting Guide
Problem Cause Solution
There is an abrupt loss of sound from
one or both of the speakers, or the
PROTECT 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 is heard orUy at a very low
volume. MUTING has been pressed. (The
muting indicator is lit.) Press the button to cancel the muting
function.
Sound is heard only from one channel,
or the volume from the left and right
speakers is unbalanced. The BALANCE control is not set
appropriately. Adjust the BALANCE control.
The speaker or program source is not
cormected correctly. Check and properly connect the
equipment.
Soimd 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 ®/© 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. Place TV away from the audio
components.
The unit is not grounded. Connect the groimd wire to the
antenna ground terminal.
The coimections are loose. Make secure connections.
The plugs and jacks are dirty. Wipe the plugs and jacks with a cloth
lightly dampened with alcohol.
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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