R-772(A)2007.8.165:21PM페이지71

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 50.)

 

• The settings related to audio are set incorrectly.

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

 

 

"SETTING THE INPUT SETUP" on page 53.)

 

 

 

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 34.)

 

• 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 49.)

 

• 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 53.)

 

 

 

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.

 

 

 

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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Sherwood R-772 manual Troubleshooting Guide, Problem Possible Cause Remedy
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R-772 specifications

The Sherwood R-772 is a versatile and powerful stereo receiver that appeals to audiophiles and casual listeners alike. This model, known for its robust performance and rich sound quality, is designed to meet the demands of modern audio systems while retaining classic features that enhance user experience.

One of the standout features of the Sherwood R-772 is its substantial power output. With the ability to deliver 100 watts per channel, this receiver can easily drive a wide range of speakers, providing dynamic and impactful audio that fills the room. This power output is complemented by its low total harmonic distortion, ensuring that the audio remains clean and detailed, even at higher volumes.

In terms of connectivity, the R-772 is equipped with multiple inputs for various audio sources. It includes several analog audio inputs, allowing users to connect their CD players, turntables, and other devices effortlessly. Additionally, the receiver supports AM/FM radio with a built-in tuner, providing access to a wide array of radio stations and programming. The inclusion of digital inputs enhances its compatibility with modern devices, ensuring an all-encompassing audio experience.

Another attractive feature of the Sherwood R-772 is its advanced surround sound processing. It supports various surround sound formats, enhancing the listening experience for movies and music. The inclusion of Dolby Pro Logic II allows users to enjoy stereo content in a multi-dimensional audio field, making movies and music come alive in their homes.

The R-772 is also designed with user convenience in mind. Its easy-to-navigate interface and remote control make it straightforward to operate, providing users with quick access to their favorite audio settings. The receiver also features a comprehensive equalization system, allowing users to personalize their listening experience and tailor the sound to their preferences.

Durability and build quality are characteristic of Sherwood products, and the R-772 is no exception. Its solid construction ensures longevity while maintaining aesthetic appeal. This model is designed to blend seamlessly with a home audio setup, offering both style and substance.

In conclusion, the Sherwood R-772 stereo receiver stands out with its powerful performance, versatile connectivity, and user-friendly features. It embodies a perfect balance of modern technology and traditional audio quality, ensuring that it remains a valuable addition to any audio system for years to come. This receiver is an excellent choice for anyone looking to enhance their listening experience, regardless of their level of audio expertise.
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