Troubleshooting, Severe hum or noise is heard, Radio stations cannot be tuned in – Sony STR-V220 User Manual
Page 17: Surround effect cannot be obtained, The remote does not function, No sound is heard from the center speaker, Recording cannot be made, Additional information
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Additional Information
Troubleshooting
If you experience any of the following difficulties while
using the receiver, use this troubleshooting guide to
help you remedy the problem. Should any problem
persist, consult your nearest Sony dealer.
There's no sound or only a very low-level sound is heard.
Check that the speakers and components are connected
securely.
^Make sure you select the correct component on the
receiver.
headphones are connected, disconnect them.
^Press MUTING on the remote if "MUTING" is shown
in the display.
^The protective device on the receiver has been
activated because of a short circuit ("PROTECT"
flashes in the display). Turn off the receiver, eliminate
the short-circuit problem and turn on the power again.
The left and right sounds are unbalanced or reversed.
Check that the speakers and components are connected
■ correctly and securely.
^Adjust the BALANCE control.
Severe hum or noise is heard.
^ Check that the speakers and components are connected
securely.
^ Check that the connecting cords are away from a
transformer or motor, and at least 10 feet (3 meters)
away from a TV set or fluorescent light.
^ Place your TV away from the audio components.
“^Make sure you connect a ground wire to the
ANTENNA ground terminal,
“^The plugs and jacks are dirty. Wipe them with a cloth
slightly moistened with alcohol.
Radio stations cannot be tuned in.
“► Check that the antennas are connected securely.
Adjust the antennas and connect an external antenna if
necessary.
^The signal strength of the stations is too weak (when
you tune in with automatic tuning). Use direct tuning.
•♦ Make sure you set the tuning interval correctly (when
you tune in AM stations with automatic tuning) (see
pages 12 and 18).
Surround effect cannot be obtained.
^Turn on the surround mode function.
No picture or an unclear picture appears on the TV
screen.
^Select the appropriate function on the receiver.
“► Set your TV to the appropriate input mode (press TV/
VIDEO on the remote for Sony TVs).
“► Place your TV away from the audio components.
The remote does not function.
“► Point the remote at the remote sensor li on the
receiver.
“► Remove the obstacles in the path of the remote and the
receiver.
“► Replace both batteries in the remote with new ones if
they are weak.
“► Make sure you select the correct function on the
remote.
“► Pressing TV CONTROL sets the remote to operate the
TV only. In this case, press one of the SYSTEM
CONTROL/FUNCTION buttons before operating the
receiver (etc.).
No sound is heard from the center speaker.
^Select the PRO LOGIC or MOVIE mode (see page 14).
^Select the appropriate center mode (see page 15).
^Adjust the speaker volume appropriately (see page 16).
No sound or only a very low-level sound is heard from
the rear speakers.
^Select the appropriate center mode (see page 15).
^Adjust the speaker volume appropriately (see page 16).
■ ♦ Make sure you turned on the surround mode function.
Recording cannot be made.
^Check that the components are connected correctly.
^Select the source component with the function button.
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