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Troubleshooting

Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC service center.

 

PROBLEM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

 

 

 

 

 

 

 

The display does not light up.

The power cord is not plugged in.

Plug the power cord into an AC outlet.

 

 

 

 

 

 

 

No sound from speakers.

Speaker signal cables are not connected.

Check speaker wiring and reconnect if

 

 

 

 

necessary.

 

 

 

 

 

 

 

 

 

The SPEAKERS 1 and 2 buttons are not

Press SPEAKERS 1 and 2 correctly.

 

 

 

set correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

An incorrect source is selected.

Select the correct source.

 

 

 

 

 

 

 

 

 

Muting is activated.

Press MUTING to cancel the mute.

 

 

 

 

 

 

 

Sound from one speaker only.

Speaker signal cables are not connected

Check speaker wiring and reconnect if

 

 

 

properly.

necessary.

 

 

 

 

 

 

 

 

 

The balance is set to one extreme.

Adjust the balance properly (see page 10).

 

 

 

 

 

 

 

Continuous hiss or buzzing during FM

Incoming signal is too weak.

Connect an outside FM antenna or contact

 

 

reception.

 

your dealer.

 

 

 

 

 

 

 

 

 

 

The station is too far away.

Select a new station.

 

 

 

 

 

 

 

 

 

An incorrect antenna is used.

Check with your dealer to be sure you have

 

 

 

 

the correct antenna.

 

 

 

 

 

 

 

 

 

 

Antennas are not connected properly.

Check connections.

 

 

 

 

 

 

 

 

Occasional cracking noise during FM

Ignition noise from automobiles.

Move the antenna farther from automobile

 

 

reception.

 

traffic.

 

 

 

 

 

 

 

 

 

No colors on the on-screen display.

The color system of the connected TV is

Connect a PAL TV.

 

 

 

 

not PAL.

 

 

 

 

 

 

 

 

 

 

 

 

 

Howling during record playing.

Your turntable is too close to speakers.

Move speakers away from the turntable.

 

 

 

 

 

 

 

“OVERLOAD” starts flashing on the

Speakers are overloaded because of high

Rotate the MASTER VOLUME control

 

 

display.

volume.

counterclockwise three or four times, then

 

 

 

 

press STANDBY/ON

 

 

 

 

on the front panel.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If “OVERLOAD” does not disappear, unplug

 

 

 

 

the AC power cord, then plug it back again.

 

 

 

 

 

 

 

 

 

 

 

Speakers are overloaded because of short

Press STANDBY/ON

 

 

on the front panel,

 

 

 

 

 

 

 

 

 

 

 

circuit of speaker terminals.

then check the speaker wiring.

 

 

 

 

If “OVERLOAD” does not disappear, unplug

 

 

 

 

the AC power cord, then plug it back again.

 

 

 

 

If speaker wiring is not short-circuited, contact

 

 

 

 

your dealer.

 

 

 

 

 

 

 

 

 

Remote control does not work.

There is an obstruction in front of the

Remove the obstruction.

 

 

 

 

remote sensor on the receiver.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Batteries are weak.

Replace batteries.

 

 

 

 

 

 

 

 

 

 

 

 

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JVC RX-668RBK manual Troubleshooting, Problem Possible Cause Solution
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RX-668RBK specifications

The JVC RX-668RBK is a commendable addition to the world of home audio receivers, delivering a blend of impressive features and robust sound performance ideal for both casual listeners and audiophiles alike. This 5.1-channel AV receiver stands as a testament to JVC's commitment to quality and innovation in home entertainment systems.

One of the standout features of the RX-668RBK is its power output. Capable of delivering up to 100 watts per channel, the receiver ensures that users can enjoy clear, dynamic sound at any volume level. The receiver supports a range of audio formats, including Dolby Digital and DTS, which provide an immersive experience during movie nights or while enjoying music. This multi-channel setup allows for true surround sound, transporting listeners straight into the action.

The RX-668RBK is equipped with a sophisticated digital signal processing technology that enhances audio quality across different types of content. The built-in equalizer function offers users the flexibility to customize their sound preferences, allowing for adjustments based on the specifics of the room and the type of media being played. Whether you are watching a fast-paced action film or listening to your favorite album, the receiver adapts seamlessly to deliver optimal sound performance.

Connectivity options are plentiful, as the RX-668RBK features multiple HDMI inputs, enabling users to connect a variety of sources, such as Blu-ray players, gaming consoles, and streaming devices. The receiver also includes optical and coaxial digital inputs, as well as analog audio inputs, ensuring compatibility with both modern and legacy devices. Additionally, the front USB input allows for easy connectivity to USB sources, making it simple to play digital music files.

The user interface of the JVC RX-668RBK is designed for convenience, featuring an intuitive on-screen display that simplifies setup and navigation. The remote control enhances this ease of use, allowing users to manage their audio settings and select input sources from the comfort of their couch.

Overall, the JVC RX-668RBK stands out for its robust feature set, superior sound processing technologies, and versatile connectivity options. It is a reliable choice for anyone looking to enhance their home audio experience, creating a perfect blend of convenience, quality, and exceptional performance.
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