Sherwood R-904N manual Troubleshooting Guide, Problem, Possible Cause

Models: R-904N

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Troubleshooting Guide

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 dealer. Under no circumstances should you attempt to repair the receiver yourself.

this fails to resolve the situation, consult your This could void the warranty.

PROBLEM

No power

No sound

POSSIBLE CAUSE

* The AC input cord is disconnected.

Poor connection at AC wall outlet or the outlet is dead or off.

*The speaker wires are disconnected.

*The master volume is adjusted too low.

*The MUTE button is pressed to ON.

*Incorrect selection of input source.

*Incorrect connections between the components.

*The HDMI Audio Out is set to THRU.

REMEDY

*Connect cord securely.

*Check the outlet using a lamp or another appliance.

*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.

*Set it to AMP. (For details, refer to "When selecting the HDMI (HDMI Audio Out)" on page 25.)

No sound from the surround speakers

No sound from the center speaker

No sound from the surround back speakers

No picture

No picture with an HDMI connection

Noise or distorted picture

No picture with home network connection

Stations cannot be received

Preset stations cannot be received

Poor FM reception

Remote control unit does not operate.

*Surround mode is switched off(stereo mode).

*Master volume and surround level are too low.

*Monaural source is used.

*Surround speaker setting is "NO".

*Stereo mode, etc is selected.

*Center speaker setting is "NO".

• Master volume and center level are too low.

*The input signal format or the current surround mode cannot support the 7.1(or 6.1) surround.

*The surround back channels' power amplifier is assigned to "R2".

*Master volume and surround back level are too low.

*Surround back speaker setting is "NO".

*Video connections between this unit and the monitor TV are not made correctly.

*Incorrect selection of input source on the monitor TV.

*HDMI connection between this unit and the monitor TV is not made correctly.

*The monitor TV or other equipments do not support HDCP.

*Video format of your monitor TV, BD/DVD player, etc. is different from NTSC.

*Home network connection between this unit and broadband router is not correctly.

*The communication setting is not set correctly.

*The settings related to VuNow are not set correctly.

*No antenna is connected.

*The desired station frequency is not tuned in.

*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.

*Batteries are not loaded or exhausted.

*The remote sensor is obstructed.

*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 mode.

*Select the desired center speaker setting.

*Adjust master volume and center level.

*Under the proper situations, perform the 7.1 (or 6.1) surround playback.(For details, refer to "ENJOYING SURROUND SOUND" on page 23.)

*Assign the power amplifier to the surround back channels.(For details, refer to "When selecting the AMP ASSIGN" on page 48.)

*Adjust master volume and surround back level.

*Select the desired surround back speaker setting.

*Make proper video connections.

*Select the input source correctly.

*Make proper HDMI connection.

*This unit will not output video signal unless the connected equipments supports HDCP.

*Change the video format to NTSC.

*Make proper home network connection.

*Set the setting correctly.

*Set the settings correctly.

*Connect an antenna.

*Tune in the desired station frequency.

*Move antenna and retry tuning.

*Memorize the correct station frequency.

*Memorize the stations again.

*Connect an antenna.

*Change the position of the antenna.

*Install an outdoor FM antenna.

*Replace the batteries.

*Remove the obstacle.

Page 55
Image 55
Sherwood R-904N manual Troubleshooting Guide, Problem, Possible Cause