Sherwood R-903R manual Troubleshooting Guide, Problem Possible Cause Remedy

Troubleshooting Guide

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.

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

ENGLISH

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