JVC RX-668VBK manual Troubleshooting, Problem Possible Cause Solution

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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 reception.

Incoming signal is too weak.

Connect an outside FM antenna or contact 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 an NTSC TV.

 

not NTSC.

 

 

 

 

Howling during record playing.

Your turntable is too close to speakers.

Move speakers away from the turntable.

“OVERLOAD” starts flashing on the display.

Speakers are overloaded because of high volume.

Rotate the MASTER VOLUME control counterclockwise three or four times, then press POWER 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 circuit of speaker terminals.

Press POWER on the front panel, 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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Contents RX-668VBK RX-668VBK Table of Contents Front Panel Remote ControlParts Identification To use the Cursor control buttons q on the front panelChecking the Supplied Accessories Before InstallationConnecting the FM and AM Antennas Getting StartedConnecting the front speakers Connecting the SpeakersBasic connecting procedure Connecting the rear and center speakersAudio component connections Connecting Audio/Video ComponentsConnecting the subwoofer speaker Video component connections Plug the power cord into an AC outlet Connecting the Power CordPutting Batteries in the Remote Control Replace the coverBasic Operations Turning the Power On and Off StandbyFrom the remote control On the front panelRecording a Source Selecting the Front SpeakersMuting the Sound Adjusting the Tone Attenuating the Input SignalAdjusting the Front Speaker Output Balance Reinforcing the BassChanging the Source Name Setting Center and Rear Speakers for DSP ModesPress Setting so that the cursor Press TAPE/MDPress ONE Touch Operation Using the Sleep TimerAdjust the sound using the functions listed above Receiving Radio Broadcasts Tuning in Stations ManuallyUsing Preset Tuning Press FM/AM to select the bandWhen an FM stereo broadcast is hard to receive or noisy Press 10 keys to select a preset channel numberTo tune in a preset station Press FM/AMDAP modes Using the DSP Modes3D-PHONIC modes Surround ModesRear Available DSP Modes According to the Speaker ArrangementFront Rear SpeakerAdjusting the 3D-PHONIC Modes Adjusting DAP Digital Acoustic Processor ModesPress Test to check the speaker Press Rearl / + to adjust the rear speaker output levelUntil the mode PRO Logic Or Theater appears on Display Output balanceActivating the DSP Modes Press Surround repeatedly Until the DSP mode you wantTo cancel the DSP mode Select and play a sound sourceUsing the DVD Multi Playback Mode Activating the DVD Multi Playback ModeUsing the On-Screen Menus Press any one of %/ Þ/ @/ # Adjusting the DSP ModesAdjusting the DVD Multi Playback Mode Press %/ Þto move to Surround LEVEL, then press @/ #Press %/ Þto move To Preset MEMORY, then press @/ # Press % / Þ/ @/ #to adjust the tone as you wantPress % / Þto move to SETTING, then press @/ # Press any one of % / Þ / @/ #Same time Compu Link Remote Control SystemRemote Control through the Remote Sensor on the Receiver Automatic Source SelectionDisplaying the Disc Information on the TV screen Text Compu Link Remote Control SystemCD player MD recorder Disc Search Only for CD PlayerTo exit from the Disc information screen Press Text Display while CD or MD is selected as the sourceShowing the Disc Information on the TV Screen Press %/ Þto move To Performer Then press OSD SET Press Text Display while CD is selected as the sourcePress %/ Þto move To SEARCH, then Press OSD SET Press OSD SET againPress %/ Þto move To Title INPUT, then press OSD SET Press %/ Þto move To Search Then press OSD SETPress %/ Þto move To GENRE, then Press OSD SET Entering the Disc InformationPress %/ Þto move to the genre you want, then press OSD SET Up to 32 characters to this User FileEnter the disc title, referring to steps 3 Press Text Display while MD is selected as the sourceVolume to the minimum using the TV volume AV Compu Link Remote Control SystemWhen turning on the TV for the first time after AC outletsOne-Touch Video Play Automatic Selection of TV’s Input ModeAutomatic Power On/Off One-Touch DVD PlaySound control section Amplifier Operating JVC’s Audio/Video ComponentsTuner CD playerDVD player Cassette deckMD recorder If there are more than one code listed for your brand of TV Release TV PowerTry to operate your TV by pressing TV Power Operating Other Manufacturers’ Video EquipmentRelease CATV/SAT Power Release VCR PowerTry to operate your VCR by pressing VCR Power Manufacturer CodesTroubleshooting Problem Possible Cause SolutionOhms, 40 Hz to 20 kHz with no more than 0.8% SpecificationsWatts per channel, min. RMS, driven into Total harmonic distortionGeneral FM tuner IHFAM tuner 1098 781 954 650Valley Road Wayne, NJ Limited Warranty AUDIO-2 1298HIMMDWJEM

RX-668VBK specifications

The JVC RX-668VBK is a versatile and robust A/V receiver designed to meet the needs of home theatre enthusiasts. With its blend of advanced features and impressive sound quality, this receiver is suitable for both casual viewers and audiophiles alike. It is packed with technologies that enhance listening experiences, making it a popular choice among consumers.

One of the standout features of the RX-668VBK is its powerful amplification capabilities. It delivers 100 watts per channel into 8 ohms, providing enough power to drive a variety of speaker setups. This level of power ensures rich, dynamic sound reproduction suitable for everything from music playback to movie watching. The receiver supports surround sound formats, including Dolby Digital and DTS, allowing for an immersive audio environment that draws viewers deeper into their favorite films.

In terms of connectivity, the JVC RX-668VBK boasts an array of inputs and outputs. It includes multiple HDMI ports, facilitating easy connections to modern devices such as Blu-ray players, gaming consoles, and streaming devices. The receiver supports 4K pass-through, ensuring that it can keep up with the latest video formats and resolutions, thus future-proofing your home entertainment system.

Furthermore, the RX-668VBK integrates various audio technologies that enhance sound quality. The built-in DSP (Digital Signal Processing) allows users to select different sound modes tailored for movies, music, or gaming, providing flexibility for different types of content. The receiver also features a comprehensive equalizer that enables users to optimize sound profiles based on personal preferences and room acoustics.

One notable aspect of the RX-668VBK is its user-friendly interface. The on-screen display and intuitive remote control make it easy to navigate through settings and options, ensuring a seamless experience for users of all technical levels. Additionally, the receiver is equipped with a sleep timer and programmable memory functions, enhancing convenience during use.

Overall, the JVC RX-668VBK is a comprehensive A/V receiver that combines robust power, advanced audio technologies, and versatile connectivity options. Its excellent sound quality and user-friendly features make it an attractive option for both home cinema setups and music lovers, ensuring that it meets the demands of today's audio-visual landscape. With the RX-668VBK, JVC continues to establish its reputation as a reliable brand in the home entertainment market.
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