Sony STR- D915 User Manual
Page 27
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Problem
Cause
Solution
There is an abrupt loss of sound from 1
one or both of the speakers/ and the
PROTECTOR indicator flickers on the
display.
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 i
is reversed.
The speakers are not connected
correctly.
Connect the right speaker to the R
SPEAKER terminals and the left
spéaker 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 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.
No sound or sound at very low level is'
heard from rear speakers.
The SOUND FIELD circuit is turned
off.
Press SOUND HELD ON/OFF to ON.
The CENTER MODE button is set to
3CH LOGIC.
Set it to WIDE, PHANTOM or
NORMAL according to your speaker
system.
Surround effect cannot be obtained.
The SOUND FIELD circuit is turned
off.
Press SOUND HELD ON/OFF to ON.
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.
The mode of the remote commander is
not the same as the receiver.
Press the desired FUNCTION button
on the remote commander again.
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