Sherwood R-765 manual Troubleshooting Guide, Problem Possible Cause Remedy

Page 40

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.

 

 

 

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.

 

• Speakers are not switched on.

• Press the SPEAKER button to ON.

 

• 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.

 

 

 

Other Sherwood components do

• DIGI LINK connections are not made properly.

• Make proper DIGI LINK connections.

not react to remote control

 

 

commands.

 

 

 

 

 

OSD function is not available

• Video connections between this unit and the

• Make proper video connections.

 

TV monitor are not made correctly.

 

 

 

 

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Contents 765 Introduction Read this Before Operating Your UnitSafety Instructions Contents System Connections Should this happen, memorize them againConnecting 7 CH Direct Inputs Connecting Video Components Video Connecting Speakers AC Input Cord Front Panel Controls 252423Video 3 VIDEO/AUDIO Input Jacks Universal Remote Controls Digi link system remote controlsFunction Table of the Numbered Buttons Remote Control Operation Range Loading BatteriesUsing Functions of Remote Control Entering a setup codeUsing a punch-through function Removing a punch-through functionProgramming a macro function Operating a macro functionListening to a Program Source OperationsBefore operation When CD, Video 1~3 is selected as an Input sourceAdjusting the tonebass and treble Surround Sound Surround modesDolby Pro Logic Dolby Pro Logic II surroundTheater HallSpeaker placement Adjusting the speaker settingsSetting the type of speakers Small NoneMemorize the adjusted speaker settings Each time the Auto button is pressed, the decoding Adjusting the Dolby Pro Logic II Music parameters Panorama modePANO, default value OFFCenter width controlC-WID, default value Dimension controlDIMEN, default valueAdjusting each channel level with test tone Adjusting the current channel levelMemorizing the adjusted channel levels Calling the memorized levels Downmixing into 2 front channelsManual tuning Presetting radio stationsTuning to preset stations Memory Backup FunctionRecording Recording with TapeDigital Audio Recording with MD Recorder There will be no recording as well as no soundOperating the sleep timer Adjusting the brightness of the fluorescent displaysOther Functions Compressing the dynamic range Dolby Digital sources onlyCurrent Status Display Using the OSDMenu Screen Cursor UP Conditions on other menus Troubleshooting Guide Problem Possible Cause RemedySpecifications Amplifier SectionSetup Code Table VCR STS DVD AUX-TAPE/MD AUX-HOME Automation 765

R-765 specifications

The Sherwood R-765 is a high-performance integrated amplifier that exemplifies the brand’s commitment to delivering exceptional sound quality and sophisticated features. This amplifier is designed to cater to audiophiles who demand both power and precision, making it a formidable choice for home theater systems and music enthusiasts alike.

One of the standout features of the R-765 is its robust power output. Delivering 100 watts per channel into 8 ohms, it provides the muscle needed to drive a wide variety of speakers. This power capacity translates into dynamic sound reproduction, showcasing both the delicate nuances and the exhilarating peaks of music and movie soundtracks. The amplifier’s performance is enhanced by its high current capability, allowing it to maintain clarity and control even at high volume levels.

The R-765 is equipped with advanced digital processing technologies that elevate its performance beyond traditional analog systems. It supports high-resolution audio formats, ensuring that listeners can enjoy their favorite music in the best possible quality. The versatile digital inputs include USB, optical, and coaxial connections, making it easy to integrate with a variety of devices, such as computers, TVs, and media players.

Another notable characteristic of the Sherwood R-765 is its user-friendly interface. The front panel features a sleek design with intuitive controls, allowing for easy navigation through numerous settings and features. Additionally, the amplifier includes a built-in Bluetooth function, enabling seamless wireless streaming of music from smartphones and tablets.

The R-765 also emphasizes connectivity, boasting several analog inputs and outputs, including phono input dedicated to vinyl enthusiasts. It supports multi-room audio setups, making it an excellent choice for those looking to fill multiple spaces with sound. The inclusion of a comprehensive remote control further enhances user convenience, putting control at the fingertips of the listener.

In terms of build quality, the Sherwood R-765 features a rugged design with premium components, ensuring longevity and reliable performance. Its modern aesthetics fit well in any home environment, appealing to both traditional and contemporary tastes.

Overall, the Sherwood R-765 represents an impressive blend of power, versatility, and audio fidelity, embodying the spirit of high-quality home entertainment. Whether used in a dedicated audio system or as part of a larger home theater setup, this amplifier stands out with its exceptional capabilities and user-centric features.
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