Question about JVC RX-668V Receiver

1 Answer

RX-668V - Center Speaker Channel

Hi, Here's my setup. JVC RX-668V A/V Receiver. JVC XV-FA95 DVD player (7-disc changer). JVC TD-W354 Dual Cassette Deck. JVC XL-F254 CD Auto Changer (5 disc changer). RCA 32-inch Entertainment Series Television. Comcast Digital cable box hooked in there too. Very short version of below is the Center channel of the receiver doesn't work, even though I can hear the analog hiss indicating it's powering up. Here's the full details. I've only watched DVD's a few times on it where the DVD Multi function was enabled on the receiver. In the past, I didn't have problems when using the Center speaker. I recently started to watch DVD's on a regular basis, and I've encountered a problem with the Center speaker not playing audio through it consistantly. If I crank the volume up all the way (with only the center speaker plugged in), I can hear distorted but audible audio. The last few times, if I turned the receiver off/on a few times or switched in and out of DVD Multi mode on the receiver a few times, it would eventually kick in and be working fine. However, this no longer works, and I can't get the center channel to kick in all the way. The rear and left/right channels work perfectly. Now, I went through a ton of troubleshooting already, and have determined it is not the DVD player OR the speaker; it's the center channel on the receiver. I can get the center speaker to work perfectly when I plug it in one of the other channels on the receiver. Same with the DVD's center channel plugged into another channel on the receiver; works perfectly. I THINK I have gone through all the settings on the receiver as far as center channel volume and making sure it was enabled. There's all the other settings (hall, theatre, pavilion, etc) and I cycled through all of them with the "surround" button on the receiver. Any advice on what it could be? I'm thinking it might be a bad capacitor in the receiver, or some kind of goofy routing problem when the DVD Multi-function is enabled. I have no other problems on that receiver or any of the components attached to it. I apologize for the lengthy post.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,070 Answers
Re: RX-668V - Center Speaker Channel

Have a tech check your set it is a bad cap that that bias a very small voltage to that circuit or it could be cold solder.good luck.

Posted on Apr 16, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Can't get my center work on my jvc rx 807v receiver

Make sure the speaker is good by connecting it to a known good working site. If speaker is good, make sure it is properly connected to center speaker terminals. Then if it is a surround receiver make sure that the sound mode is one where the middle channel works such as 5.1 DTS, etc. If the center channel still does not work then the problem lies with the decoder chip that is not working properly and sending the center channel info to that specific amplifier.

Mar 10, 2015 | JVC RX-807VTN Digital Surround System...

1 Answer

Sound is great unless I'm playing a DVD. When I'm playing a DVD, the music and sound effects are fine, but I have difficulty hearing and understanding the dialog. Any suggestions?

Check your setup for the center channel level, or to see if the center channel speaker is working at all.

Also check the setup in your DVD player to make sure its speaker setup matches what you have.

Feb 14, 2011 | Yamaha RX-V750 Receiver

1 Answer

Yamaha RX-V365 Receiver when I hook up my center channel it is not audible at all. The R and L speakers work fine when they were located in the FRONT A and FRONT B terminals, but when I moved everything to...

With what signal did you try? Maybe your signal source (DVD/TV or radio) didn't contain any sounds for the center channel.
Go to the Setup menu, Speaker setup / Manual setup and find there item called "Test tone". It will output a test tone to each speaker individually (you will see on LCD which speaker is being tested at each moment). If you will hear a sound from the center now, there is no issue and center is working fine, just your source didn't contain any sound for the center.

If it doesn't work, then either you have faulty cable, faulty speaker or faulty center output of the receiver.
- Try connecting the center speaker to different output of receiver (this will test if speaker is OK).
- Try connecting working LEFT speaker to left output with CENTER cable (this will test if cable is OK).
- Try connecting working LEFT speaker with working cable to the CENTER output (this will test the output of receiver if OK - but use the Test Tone from Setup).

May 18, 2010 | Yamaha Rx-v365 A/V Home Theater Receiver

1 Answer

I have Bose speakers hooked up with JVC RX668V and the rear speakers aren't loud enough! What can I do to get more volume?

What models of speakers all around? Certain combinations of speaker efficiencies won't be within this unit's capabilities to compensate the volume.

Starting on Page 17 they discuss how you can adjust the Digital Acoustic Processor (DAP) mode to modify the levels of the rear speakers -10dB to + 10dB.

Starting on Page 20 they have similar settings for 5.1 discrete analog inputs.

Mar 01, 2010 | JVC RX-668V Receiver

2 Answers

No sound of voice, only surround sound

If you do not have a center channel speaker connected, then in the reciever setup menu for speakers, there should be a selection for center channel that says something like either yes or no. I'm guessing it says yes. Then you need to select "no" so that the circuitry will direct sound specified for the center channel to be reproduced through your front speakers.

Dec 07, 2009 | Pioneer VSX-D711 Receiver

1 Answer

Center channel

Back to basic to advance:
Be sure you have all speakers connected correctly behind the receiver.If you center channel don't have any sound,it could be 7 different issues,but you could try to just hook up your center channel to either the right or the left speaker output to be sure the center channel speaker does work.
Check your the speaker wiring tip(if there is any),i will use just the speaker wire go straight to the center speaker output,go to the receiver to change it to pro-logic or dolby digital and of course you should put in a dvd in the dvd player to have a good quality movie to play the dialogue through the center channel for you test.
If you have tried the above step and still have no sound,you might consider hiring a troubleshooting master to take care of your issue.
Let me know what you need!

Nov 05, 2008 | Pioneer VSX-455 Receiver

2 Answers

No voice sound from receiver

Sounds to me like you have not got the cener speaker working properly. Try another surround mode, then check the speaker by switching it with another known good one just to make sure i the problem is the speaker or the receiver. You can also do the speaker test and make sure the center speaker is set to be turned on in the menu settings.

Here is a link to the owners/operation manual and you can find any information you need to check your receiver out. If you never are able to get it working, you need to take it to a service center to be checked out.

Get your manual free here:

A "FixYa!" rating would be appreciated, and let me know if you need any more help,


Jun 09, 2008 | JVC RX-6020V Receiver

1 Answer

Center speaker still not working :(

all your speaker channels are working so your problem lies with a setup fault. when you watch tv you are only feeding a stereo signal into the amp. you need to select the internal surround sound generator. you need to select either the movie or surround function. the unit will convert the stereo signal to 5.1 channel surround.

May 26, 2008 | Yamaha RX-V595A Receiver

2 Answers

Jvc rx-5020v dolby digital problem

Also...If your BluRay player only has a optical output for audio you will need to swap the inputs on the JVC rx-5020v. Press the "settings" button repeatedly until "digital in" appears on the display. Now use the "adjust" up and down buttons until DVD is selected as option 2. It will look like something like: 1CD2DVD Note: this may bugger any other previous setup you have.

Feb 02, 2008 | JVC RX-5020VBK Receiver

1 Answer

Little or no sound JVC RX6010V

i had the same problem but i went to adjust settings and it says right speaker left speaker and you have to set them on ten

Jan 02, 2008 | JVC RX-6010V Receiver

Not finding what you are looking for?
JVC RX-668V Receiver Logo

200 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Audio & Video Receivers Experts


Level 2 Expert

49 Answers

Cindy Wells

Level 3 Expert

4721 Answers

Chris Hunt

Level 3 Expert

1342 Answers

Are you a JVC Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides