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.
Update on my issue. I'm thinking you are right that it's a bad solder point. I picked up the receiver and put it down a little harder than I thought (not slammed, just a slight bump) and voila, the center channel started working perfectly. Turned receiver off/on several times and still works. I'll take it into a local authorized JVC tech and have him check out that center channel. Thanks for the input.Update on my issue. I'm thinking you are right that it's a bad solder point. I picked up the receiver and put it down a little harder than I thought (not slammed, just a slight bump) and voila, the center channel started working perfectly. Turned receiver off/on several times and still works. I'll take it into a local authorized JVC tech and have him check out that center channel. Thanks for the input.
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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.
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).
If you cleanred the optics and this didnt help then you did all you can do without more test equipment. Your player might need an focus or tracking offset alighnment or a focus or tracking gain alighnment or the unit could have a defective laser. Only by connecting it up to test equipment will a tech be able to tell.
Update on my issue. I'm thinking you are right that it's a bad solder point. I picked up the receiver and put it down a little harder than I thought (not slammed, just a slight bump) and voila, the center channel started working perfectly. Turned receiver off/on several times and still works. I'll take it into a local authorized JVC tech and have him check out that center channel. Thanks for the input.
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