IRG
01-24-2005, 07:14 AM
Hey all,
It's been a while since I've posted much. This problem came to me today from my brother-in-law who currently lives in Brussels, Belgium. Read below for a very good description of the problem. The store where he bought his NAD receiver is no longer in business.
Any thoughts? It seems to me to be a problem swith the receiver, somewhere is the chip set for surround mode. Here is his problem:
"You may recall that my receiver is a NAD T742 and with that I got a set of JMLab Sib speakers (5) and a JMLab Cub sub.
Over the weekend my left front speaker seems to have developed a problem - that is, no sound in most settings (other than the low-pitched hum of being on). When I do a set-up test, all the other speakers produce the standard test sound but the left front speaker (LF) gives nothing.
However, when listening to FM/AM in the stereo setting I got perfect sound from both left and right front. As for other sound configurations while listening to radio, on most occasions LF is either almost non-existent, with crackle, or much quieter than the other settings.
As for watching TV with the receiver set to "Sat" the situation is really weird:
(a) In the "Ears" set-up I get full volume from RF, C, RR, LR but only crackly sound from LF;
(b) In "Stereo" I get sound only from LF!!
(c) And on the other various settings (e.g. Pli Movie, Pli Matrix, ProLogic) I get a combination of working speaker but always with LF being full of crackle and much quieter than the others. And - it may be my imagination - but the more advanced sound configurations seem to be outputting at much lower volume than previously.
Finally, the DVD story is straightforward - all speakers except LF seem to be working normally.
Now, I've checked all the connnections at all speakers and at the rear of the receiver and everything seems fine. What is really strange is that the test programme registers LF as having no output yet while in the "stereo" mode for TV only LF works and in "stereo" for FM/AM both LF and RF work in combination as they should. And for virtually every other option LF is either producing at much less volume (plus with crackle) or not at all.
Do you think this sounds like a speaker problem, or a receiver problem, or both? Neither receiver nor speakers have been hit / spilled / sat upon so I can't figure where this problem comes from.
What would you recommend I do before trying to track down somebody who could take a look at this for me?"
THANKS ALL. irg
It's been a while since I've posted much. This problem came to me today from my brother-in-law who currently lives in Brussels, Belgium. Read below for a very good description of the problem. The store where he bought his NAD receiver is no longer in business.
Any thoughts? It seems to me to be a problem swith the receiver, somewhere is the chip set for surround mode. Here is his problem:
"You may recall that my receiver is a NAD T742 and with that I got a set of JMLab Sib speakers (5) and a JMLab Cub sub.
Over the weekend my left front speaker seems to have developed a problem - that is, no sound in most settings (other than the low-pitched hum of being on). When I do a set-up test, all the other speakers produce the standard test sound but the left front speaker (LF) gives nothing.
However, when listening to FM/AM in the stereo setting I got perfect sound from both left and right front. As for other sound configurations while listening to radio, on most occasions LF is either almost non-existent, with crackle, or much quieter than the other settings.
As for watching TV with the receiver set to "Sat" the situation is really weird:
(a) In the "Ears" set-up I get full volume from RF, C, RR, LR but only crackly sound from LF;
(b) In "Stereo" I get sound only from LF!!
(c) And on the other various settings (e.g. Pli Movie, Pli Matrix, ProLogic) I get a combination of working speaker but always with LF being full of crackle and much quieter than the others. And - it may be my imagination - but the more advanced sound configurations seem to be outputting at much lower volume than previously.
Finally, the DVD story is straightforward - all speakers except LF seem to be working normally.
Now, I've checked all the connnections at all speakers and at the rear of the receiver and everything seems fine. What is really strange is that the test programme registers LF as having no output yet while in the "stereo" mode for TV only LF works and in "stereo" for FM/AM both LF and RF work in combination as they should. And for virtually every other option LF is either producing at much less volume (plus with crackle) or not at all.
Do you think this sounds like a speaker problem, or a receiver problem, or both? Neither receiver nor speakers have been hit / spilled / sat upon so I can't figure where this problem comes from.
What would you recommend I do before trying to track down somebody who could take a look at this for me?"
THANKS ALL. irg