Sherwood R-903R - Manual (Page 41)

41
Troubleshooting Guide
ENGLISH
PROBLEM POSSIBLE CAUSE REMEDY
No power
Power shuts off abruptly
during operation
No sound
No sound from the surround
speakers
No sound from the center
speaker
No sound from the surround
back speaker
Stations cannot be received
Preset stations cannot be
received
Poor FM reception
Continuous hissing noise during
FM reception, especially when a
stereo broadcast is received.
Continuous or intermittent
hissing noise during AM
reception, especially at night.
Remote control unit does not
operate.
OSD function is not available
• The AC input cord is disconnected.
• Poor connection at AC wall outlet or the outlet
is inactive.
The protection circuit is activated by the
following causes.
• Speaker terminals are short-circuited.
• Speaker settings are not adjusted correctly.
• This unit is operated for long periods of time
at extreme sound levels.
• The speaker cords are disconnected.
• The master volume is adjusted too low.
• The MUTE button on the remote control is
pressed to ON.
• Incorrect selection of the input source.
• Incorrect connections between the
components.
• Surround mode is switched off(stereo mode).
• Master volume and surround level are too low.
• A monaural source is used.
• Surround speaker setting is “N”.
• Dolby Virtual, stereo mode, etc. is selected.
• Center speaker setting is “N”.
• Master volume and center level are too low.
• The input signal format or the current surround
mode cannot support the 6.1 surround playback.
• Master volume and surround back level are
too low.
• Surround back speaker setting is “N”.
• No antenna is connected.
• The desired station frequency is not tuned in.
• The antenna is in wrong position.
• An incorrect station frequency has been
memorized.
• The memorized stations are cleared.
• No antenna is connected.
• The antenna is not positioned for the best
reception.
• Weak signals.
• Noise is caused by motors, fluorescent lamps
or lightning, etc.
• Batteries are not loaded or exhausted.
• The remote sensor is obstructed.
• Video connections between this unit and the
TV monitor are not made correctly.
• Connect the cord securely.
• Check the outlet using a lamp or another
appliance.
Should this happen, do the following steps.
• Switch off the power and check the speaker
connections.
• Adjust the speaker settings correctly.
• Adjust the volume low.
• Check the speaker connections.
• Adjust the master volume.
• Press the MUTE button to cancel the muting
effect.
• Select the desired input source correctly.
• Make connections correctly.
• Select a surround mode.
• Adjust master volume and surround level.
• Select a stereo or surround source.
• Select the desired surround speaker setting.
• Select the desired surround.
• Select the desired center speaker setting.
• Adjust master volume and center level.
• Under the proper situations, perform the 6.1
surround playback.
• Adjust master volume and surround back
level.
• Select the desired surround back speaker
setting.
• Connect an antenna.
• Tune in the desired station frequency.
• Move the antenna and retry tuning.
• Memorize the correct station frequency.
• Memorize the stations again.
• Connect an antenna.
• Change the position of the antenna.
• Change the position of the antenna.
• Install an outdoor antenna.
• Keep the receiver away from noise sources.
• Install an outdoor AM antenna.
• Replace the batteries.
• Remove the obstacle.
• Make proper video connections.
If a fault occurs, run through the table below before taking your receiver for repair.
If the fault persists, attempt to solve it by switching the receiver off and on again. If this fails to resolve the situation, consult
your dealer. Under no circumstances should you attempt to repair the receiver yourself. This could void the warranty.