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Post by whovous on May 19, 2022 11:28:56 GMT -5
One channel went out on my XPA-3 Gen 1. I've been using it as part of a home theater setup and did not realize it was out for quite some time. The one thing I did notice was that a few seconds after I shut the system down, the speaker attached to the "dead" channel made a noise which had a surprisingly close resemblance to a fart. I don't know if the sound is a clue of anything or not.
Are there any easy and obvious things for me to troubleshoot on this? I am planning to sell the amp in any event as part of a move from 7.1 to 7.1.4 and so do not plan to repair the amp unless there is something extremely obvious for me to do.
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Post by 405x5 on May 19, 2022 17:08:35 GMT -5
One channel went out on my XPA-3 Gen 1. I've been using it as part of a home theater setup and did not realize it was out for quite some time. The one thing I did notice was that a few seconds after I shut the system down, the speaker attached to the "dead" channel made a noise which had a surprisingly close resemblance to a fart. I don't know if the sound is a clue of anything or not. Are there any easy and obvious things for me to troubleshoot on this? I am planning to sell the amp in any event as part of a move from 7.1 to 7.1.4 and so do not plan to repair the amp unless there is something extremely obvious for me to do. Now, hold on there just a moment….. I have heard plenty of excuses in my time to cover up a fart 💨 but this one is a real winner!! |
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Post by audiobill on May 19, 2022 19:29:01 GMT -5
Still under warranty? Ship it back.
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Post by AudioHTIT on May 20, 2022 13:30:14 GMT -5
One channel went out on my XPA-3 Gen 1. I've been using it as part of a home theater setup and did not realize it was out for quite some time. The one thing I did notice was that a few seconds after I shut the system down, the speaker attached to the "dead" channel made a noise which had a surprisingly close resemblance to a fart. I don't know if the sound is a clue of anything or not. Are there any easy and obvious things for me to troubleshoot on this? I am planning to sell the amp in any event as part of a move from 7.1 to 7.1.4 and so do not plan to repair the amp unless there is something extremely obvious for me to do. Obviously a Gen 1 amp is at least 10 years old and out of warranty. I found the manual on line if you don’t have it, this link should take you to the troubleshooting section. www.manualslib.com/manual/678581/Emotiva-Xpa-1.html?page=28#manual |
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Post by whovous on May 20, 2022 14:39:37 GMT -5
Thank you for that link. I have another question. All three on the front panel are blue, but there is still no sound from one channel. Does the fact that the light is lit and blue rule out a blown fuse on that channel?
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Post by AudioHTIT on May 20, 2022 15:10:47 GMT -5
Thank you for that link. I have another question. All three on the front panel are blue, but there is still no sound from one channel. Does the fact that the light is lit and blue rule out a blown fuse on that channel? I’ve only owned a Gen 2 and Gen 3 XPA-7, and honestly never had to troubleshoot either of them. If the link doesn’t tell you, I wouldn’t know, maybe another Gen 1 owner who’s gone under the hood might chime in. |
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KeithL
Administrator 
Posts: 9,958
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Post by KeithL on May 20, 2022 15:25:53 GMT -5
There are no individual channel fuses on the XPA amps.
HOWEVER... there ARE separate Balanced / Unbalanced Input switches for each channel. And if that one got bumped into the wrong position the audio in that channel will stop. (And, if you haven't used those switches in years, it couldn't hurt to flip that one back and forth a few times.. sometimes the contacts are just dirty.)
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Post by whovous on May 21, 2022 16:11:15 GMT -5
That did the trick. The right channel was solidly in the Balanced position. It took a little while to get sound consistently from that speaker, but I take that as my cue that it is time to clean everything up. I plan to swap out the MC700 for the new MC1 in any event.
Thanks for the tip. I'd love to know how that switch got flipped, but I suspect I am going to have to live without a reliable answer to that one.
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Post by 405x5 on May 21, 2022 16:17:41 GMT -5
That did the trick. The right channel was solidly in the Balanced position. It took a little while to get sound consistently from that speaker, but I take that as my cue that it is time to clean everything up. I plan to swap out the MC700 for the new MC1 in any event. Thanks for the tip. I'd love to know how that switch got flipped, but I suspect I am going to have to live without a reliable answer to that one. That’s great (I was following this and was hoping that Keith’s tip would do the trick.) It reminded me of how many times in my line of work I would get “there” only to have to flip a switch (figuratively speaking) to get the show back on the road! |
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Post by AudioHTIT on May 21, 2022 16:22:00 GMT -5
That did the trick. The right channel was solidly in the Balanced position. It took a little while to get sound consistently from that speaker, but I take that as my cue that it is time to clean everything up. I plan to swap out the MC700 for the new MC1 in any event. Thanks for the tip. I'd love to know how that switch got flipped, but I suspect I am going to have to live without a reliable answer to that one. That was the first item in the troubleshooting page I linked … |
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LCSeminole
Global Moderator
Res firma mitescere nescit.
Posts: 20,498
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Post by LCSeminole on May 21, 2022 17:19:34 GMT -5
That did the trick. The right channel was solidly in the Balanced position. It took a little while to get sound consistently from that speaker, but I take that as my cue that it is time to clean everything up. I plan to swap out the MC700 for the new MC1 in any event. Thanks for the tip. I'd love to know how that switch got flipped, but I suspect I am going to have to live without a reliable answer to that one. That was the first item in the troubleshooting page I linked … It's the first thing I check when I'm not getting sound out of a channel. It's also on my checklist if I'm re-wiring or changing out interconnects. It's just so easy to overlook this "unbalanced"/"balanced" switch, and I've done it a few times.  |
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Post by 405x5 on May 22, 2022 8:15:45 GMT -5
Both are live on my amp. with no switch. (In this instance I’m happy). Perhaps a solid connection with no switch is better.
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Post by whovous on May 22, 2022 8:17:06 GMT -5
That did the trick. The right channel was solidly in the Balanced position. It took a little while to get sound consistently from that speaker, but I take that as my cue that it is time to clean everything up. I plan to swap out the MC700 for the new MC1 in any event. Thanks for the tip. I'd love to know how that switch got flipped, but I suspect I am going to have to live without a reliable answer to that one. That was the first item in the troubleshooting page I linked … Ahh, but you see, I was absolutely certain that could not be the explanation, so I skipped right over it. I did label this "troubleshooting for dummies" after all. Thanks to all for finally getting this concept through to me. |
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