Sherwood R-872 manual Troubleshooting Guide, Problem Possible Cause Remedy

Page 75

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 cord securely.

 

• Poor connection at AC wall outlet or the outlet is

• Check the outlet using a lamp or another

 

dead or off.

appliance.

 

 

 

No sound

• The speaker wires are disconnected.

• Check the speaker connections.

 

• The master volume is adjusted too low.

• Adjust the master volume.

 

• The MUTE button is pressed to ON.

• Press the MUTE button to cancel the muting effect.

 

• Incorrect selection of input source.

• Select the desired input source correctly.

 

• Incorrect connections between the components.

• Make connections correctly.

 

• The HDMI AUDIO OUT is set to ON.

• Set it to OFF. (For details, refer to "When

 

 

selecting the HDMI AUDIO OUT" on page 53.)

 

• The settings related to audio are set incorrectly.

• Set the settings correctly. (For details, refer to

 

 

"SETTING THE INPUT SETUP" on page 56.)

 

 

 

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.

 

• Monaural source is used.

• Select a stereo or surround source.

 

• Surround speaker setting is "NO".

• Select the desired surround speaker setting.

 

 

 

No sound from the center

• Dolby Virtual Speaker, stereo mode, etc is

• Select the desired surround mode.

speaker

selected.

• Select the desired center speaker setting.

 

• Center speaker setting is "NO".

 

• Master volume and center level are too low.

• Adjust master volume and center level.

 

 

 

No sound from the surround back

• The input signal format or the current surround

• Under the proper situations, perform the 7.1(or

speakers

mode cannot support the 7.1(or 6.1) surround.

6.1) surround playback.(For details, refer to

 

 

"ENJOYING SURROUND SOUND" on page 36.)

 

• The surround back channels' power amplifier is

• Assign the power amplifier to the surround back

 

assigned to "BI-AMP" or "ROOM 2".

channels.(For details, refer to "When selecting

 

 

the AMP ASSIGN"on page 52.)

 

• Master volume and surround back level are too low.

• Adjust master volume and surround back level.

 

• Surround back speaker setting is "NO".

• Select the desired surround back speaker setting.

 

 

 

No picture

• Video connections between this unit and the

• Make proper video connections.

 

monitor TV are not made correctly.

• Select the input source correctly.

 

• Incorrect selection of input source on the monitor

 

TV.

• Set the settings correctly. (For details, refer to

 

• The settings related to video are set incorrectly.

 

 

"SETTING THE INPUT SETUP" on page 56.)

 

 

 

No picture with an HDMI

• HDMI connection between this unit and the

• Make proper HDMI connection.

connection

monitor TV are not made correctly.

• This unit will not output video signal unless the

 

• The monitor TV or other equipments do not

 

support HDCP.

connected equipments supports HDCP.

 

 

 

Noise or distorted picture

• Video format of your monitor TV, DVD player, etc.

• Change the video format to NTSC.

 

is different from NTSC.

 

 

 

 

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.

 

• Antenna is in wrong position.

• Move antenna and retry tuning.

 

 

 

Preset stations cannot be

• An incorrect station frequency has been memorized.

• Memorize the correct station frequency.

received

• 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 reception.

• Change the position of the antenna.

 

• Weak signals.

• Install an outdoor FM antenna.

 

 

 

Continuous or intermittent hissing

• Noise is caused by motors, fluorescent lamps or

• Keep the receiver away from noise sources.

noise during AM reception,

lightning, etc.

• Install an outdoor AM antenna.

especially at night.

 

 

 

 

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.

 

monitor TV are not made correctly.

 

 

 

 

ENGLISH

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Contents Page Safety Instructions Read this Before Operating Your Unit IntroductionContents System Connections Connecting AntennasHdmi High Definition Multimedia Interface connection *1 Connecting Video ComponentsComponent video input default settings *2 Flow of the video signalsVideo conversion Audio conversion Flow of the audio signalsConnecting External INS Connecting Audio ComponentsConnecting Digital INS and OUT Connecting PRE OutsDigital input default settings Connecting Speakers Surround back speakersFront Bi-Amp Connections Surround back left and right speakers Speaker placementFront left and right speakers and center speaker Surround left and right speakersConnecting XM only for North America Connecting Room 2 OutsConnecting MULTI-ROOM System KIT Connecting RF Remote AntennaAC Input Connecting DC Trigger OUTConnecting PC for Upgrades Switched AC OutletsFluorescent Display Front Panel ControlsAUX in Jack Setup MIC JackAbout the transmission signal Universal Remote ControlsFunction Table of the Numbered Buttons Remote Control Operation Range Entering a setup code Using Functions of Remote ControlSearching a setup code English Erasing all the commands programmed under a device mode Erasing the programmed command from one buttonProgramming a macro function To erase a macro programTo change a macro program Programming a punch-through function Operating a macro functionErasing the programmed punch-through function Operating a punch-through functionThen VOL is displayed on the LCD screen for several seconds When RF is set to Changing the transmission signalRoom 2 Remote Controls Remote Control Operation RangeLoading Battery Before operation When selecting the External in as desiredOperations Listening to a Program SourceMuting the sound When CD, AUX, Video 1~ 4 is selected as an input sourceAchieving higher purity of sound quality Listening with headphonesSurround modes Dolby Virtual Speaker Dolby HeadphoneNeural Surround Dolby Digital + Enjoying Surround Sound2CH downmix mode Listening in Dolby Headphone modeAdjusting each channel level with test tone To cancel the surround mode for stereo operationChannel level Adjusting the current channel levelRecalling the memorized channel levels Memorizing the adjusted channel levelsListening to Radio Broadcasts Auto tuningManual tuning Auto presettingTuning to preset stations Manual presettingSigning up for XM Satellite Radio XM Satellite Radio only for North AmericaChannel search Direct searchCategory search Displaying XM information Presetting channels Preset searchSignal strength display mode Error message and statusRecording Dubbing from video components ontoVideo Digital Audio Recording with MD Recorder Displaying the audio information Operating the sleep timerAdjusting the brightness of the fluorescent display Other FunctionsWhen using the buttons on the remote control unit When selecting the tuner as a Room 2 sourceRoom 2 Source Playback When selecting the Room 2 volume When using the buttons on the front panelWhen selecting the Room 2 mode When selecting the Room 2 inputMulti OSD Menu SettingsConfirm your selection Setting the System Setup When selecting the items other than OSD Position AdjustWhen selecting the AMP Assign When selecting the Subwoofer Mode When selecting the Hdmi Audio OUTWhen selecting the Tone Control When selecting the Momentary OSD When selecting the Cinema EQWhen selecting the OSD Position Adjust Setting the Input Setup When selecting the items other than NameWhen selecting the menu of page 2 or When selecting the Audio Assign When selecting the Hdmi AssignWhen selecting the Video Assign When selecting the Video ModeWhen selecting the Video Scaling When selecting the Audio ModeWhen selecting the HD Audio When selecting the Auto SurroundWhen selecting the AV Sync When selecting the DC TriggerTo resume its factory input source name When selecting the NameSetting the Speaker / Room EQ Setup When selecting the Auto SetupPreparations When the auto setup has been completed When selecting the Speaker Configuration About the speaker distance When selecting the Speaker DistanceWhen selecting the Speaker Crossover When selecting the Room EQ Setup Setting the CH Level Setup Memorizing the adjusted channel levels When selecting the Night Mode Setting the Sound ParameterWhen selecting the Dimension control When selecting the Dolby Plii MusicWhen selecting the Panorama mode When selecting the Center Width controlWhen selecting the Dolby Headphone When selecting the Dolby Virtual Speaker Wide mode When selecting the Dolby Virtual SpeakerSetting the Multi Room Setup When adjusting the tone Bass and Treble When selecting the RoomWhen selecting the Input When selecting the VolumeProblem Possible Cause Remedy Troubleshooting GuideAmplifier Section SpecificationsAOC Setup Code TableVCR VCR TV/VCR DVD SAT AUX-MD DKK

R-872 specifications

The Sherwood R-872 is a high-performance stereo receiver that offers an impressive combination of features, sound quality, and versatility, making it a valuable addition to any home audio system. Designed with an emphasis on audio fidelity and user convenience, the R-872 stands out as a reliable choice for both audiophiles and casual listeners alike.

One of the main features of the Sherwood R-872 is its robust power output, capable of delivering 100 watts per channel into 8 ohms. This level of power ensures that it can drive a wide range of speakers, from bookshelf models to larger floor-standing units, providing a rich and immersive listening experience. The receiver's built-in amplifier also supports low total harmonic distortion (THD) levels, which guarantees clear and accurate sound reproduction, even at high volumes.

The R-872 is equipped with a variety of connectivity options, making it easy to integrate into modern home entertainment setups. It includes multiple analog inputs for connecting various audio sources, such as CD players, turntables, and streaming devices. Additionally, it features built-in Bluetooth, allowing users to wirelessly stream music from smartphones, tablets, and computers, enhancing its versatility as a central component of any audio system.

Another noteworthy characteristic of the Sherwood R-872 is its sophisticated digital signal processing (DSP) capabilities. With multiple sound presets and adjustable equalization settings, users can tailor the audio output to their preferences, whether they are enjoying music, movies, or gaming. The receiver also offers a convenient headphone output, catering to those who prefer a private listening experience.

In terms of design, the R-872 boasts a sleek and modern aesthetic with an intuitive interface. The front panel features a clear display that provides essential information about the current audio source, volume level, and other settings. The included remote control allows for easy operation from a distance, adding to the overall user-friendly experience.

In summary, the Sherwood R-872 is a versatile and powerful stereo receiver that excels in delivering high-quality audio while accommodating a range of input sources and personal preferences. With its solid performance, modern features, and elegant design, the R-872 is an excellent choice for anyone looking to enhance their home audio setup. Whether you're listening to your favorite albums or enjoying a thrilling movie soundtrack, the R-872 ensures an engaging and enjoyable audio experience.
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