Sony STR-D2090 Operating Instructions Manual page 44

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Chapter 5 Other Information
Troubleshooting Guide
Problem
No FM station can be located by
Auto-Tuning operation.
The STEREO indicator flickers or does not
appear when receiving stereo programs.
No station can be tuned in by Auto- Tuning
operation.
No stations can be tuned in by pressing
PRESET TUNING +/-.
No sound is heard even if you adjust
VOLUME.
No sound or sound at very low level is
heard from rear speakers.
Cause
nee
The signal strength of the stations is too
weak.
A very weak FM station or a noisy FM
program is received.
The AM tuning interval is set incorrectly.
The signal strength of the station is too
weak for Auto-Tuning.
No stations have been preset.
The speaker or program source equipment
is not connected correctly.
The SPEAKERS selector is not set correctly.
TAPE 2 has been pressed for a program
source other than tape deck 2. (The
indicator is lit.)
A wrong function selector has been
pressed.
The function switch on the VCR is not set
correctly.
SOUND FIELD function is turned off.
Monaural program source is played back in
Dolby surround mode.
Solution
Press TUNING LEVEL to set the receiving
signal level low.
Check the antenna connection.
Adjust the antenna or connect an external
FM antenna.
Press FM MODE to set to MONO mode.
Change the tuning interval according to the
AM frequency allocation system of your
country. (See page 5)
Adjust the antenna.
Directly tune in the stations.
(See page 19)
Preset the stations. (See page 21)
Connect the equipment correctly.
Set the selector correctly.
Press the button to disengage.
Press the correct function selector.
Check'and set it correctly.
Press SOUND FIELD ON/OFF to turn on the
function.
Select the other modes.
Sound is heard only at a very low volume.
One channel does not transmit audio, or
the volume from the left and right speakers
is unbalanced.
MUTING has been pressed. (The MUTING
indicator is lit.)
The BALANCE control is not set
appropriately.
The speaker or program source is not
connected correctly.
Press the button to disengage.
Adjust the BALANCE control.
Check and properly connect the
equipment.
There is an abrupt loss of sound from
one or both of the speakers, and the
PROTECTOR indicator flickers in the
display window.
4A
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.

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