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Post by Priapulus on May 8, 2022 12:48:52 GMT -5
My XMC-2 stopped working. If I turn it on with the power switch on the back, Blue "Emotiva" lights up in the display and the blue underline slowly crosses under "Emotiva" to the end, as usual. But then nothing else happens. None of the controls work.
Before I call EMO, any suggestions. Is there any history of this problem?
Sincerely
Blair
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Post by ttocs on May 8, 2022 12:58:25 GMT -5
Disconnect everything. Empty box. No power cord connected.
Wait five minutes.
Connect only the power cord and bootup.
Report what happens.
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Post by Priapulus on May 8, 2022 13:59:25 GMT -5
Disconnect everything. Empty box. No power cord connected. Wait five minutes. Connect only the power cord and bootup. Report what happens. Ok, I tried that and no change. I did pop-the-hood and measured all the voltages on the power supply; all seems normal per the cctbd screening, though one large capacitor top was slightly bulged. Next I'll try reseating all the internal cables and plugs. /b |
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Post by ttocs on May 8, 2022 14:36:48 GMT -5
Too bad. A bulging cap is not good, however,
Next, I'd try the Loopback Test.
Power off Rear Power Switch.
Hold the front panel Power Button and keep holding.
Switch on the Rear Power Switch.
Keep holding Power Button until the front display panel populates with the tests.
Wait at least two full minutes for all internals to bootup.
Arrow down to #4 Loopback Test.
Right Arrow to initiate test.
If a test fails, rerun the test, it's possible not enough time was allowed for internals to fully power up.
To exit the tests, switch off the rear power switch. I always wait a couple minutes before switching the power back on. I've found that the XMC-2 network adapter works 100% of the time after waiting 2:15 minutes.
While it's interesting to know if something fails a test, the purpose of doing this exercise is to possibly jump start whatever might be disallowing the processor to fully bootup. When my XMC-2 had a booting problem I ran this test and the next bootup worked.
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Post by Priapulus on May 8, 2022 14:43:59 GMT -5
- Next, I'd try the Loopback Test -
ECC-1 loopback failed. What's the ECC?
The other tests passed.
/b
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Post by ttocs on May 8, 2022 14:52:26 GMT -5
- Next, I'd try the Loopback Test - ECC-1 loopback failed. What's the ECC? The other tests passed. /b To be 100% sure if it's a "real" fail, run the test again and make certain to wait enough time. It's easy to get false fails. You can either go through all the steps, or just left arrow back to the Menu and run it again. I don't remember what ECC is for. I know it's something that, if it fails the test, will need to be reflashed. |
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Post by 405x5 on May 8, 2022 15:25:05 GMT -5
My XMC-2 stopped working. If I turn it on with the power switch on the back, Blue "Emotiva" lights up in the display and the blue underline slowly crosses under "Emotiva" to the end, as usual. But then nothing else happens. None of the controls work. Before I call EMO, any suggestions. Is there any history of this problem? Sincerely Blair Bulging capacitor = Trip to Franklin (sorry) Not old enough for that unless a failure has occurred…. |
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Post by Priapulus on May 9, 2022 19:06:30 GMT -5
Disconnect everything. Empty box. No power cord connected. Wait five minutes. Connect only the power cord and bootup. Report what happens. Ok, I tried that and no change. I did pop-the-hood and measured all the voltages on the power supply; all seems normal per the cctbd screening, though one large capacitor top was slightly bulged. Next I'll try reseating all the internal cables and plugs. /b It kept failing #4 loopback test (with cold reboots between attempts). So I just repowered, let it reboot, and it got stuck at the usual place. However, I just left it running. After about half an hour, I noticed it successfully started up by itself. It will warm boot no problem. But if I cold reboot, it needs about 1/2 hour to succeed. The bad capacitor is the main cap one of the 5v lines on the power supply board. The line measures 5vdc, but a bad cap could be allowing a lot of noise thru. I'm going to replace them both. I'm leaving the processor powered down until fixed; the bad cap might do damage. Fortunately, I can plug my TV directly into my HTPC and get my shows. /b |
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Post by 405x5 on May 10, 2022 8:20:42 GMT -5
Ok, I tried that and no change. I did pop-the-hood and measured all the voltages on the power supply; all seems normal per the cctbd screening, though one large capacitor top was slightly bulged. Next I'll try reseating all the internal cables and plugs. /b It kept failing #4 loopback test (with cold reboots between attempts). So I just repowered, let it reboot, and it got stuck at the usual place. However, I just left it running. After about half an hour, I noticed it successfully started up by itself. It will warm boot no problem. But if I cold reboot, it needs about 1/2 hour to succeed. The bad capacitor is the main cap one of the 5v lines on the power supply board. The line measures 5vdc, but a bad cap could be allowing a lot of noise thru. I'm going to replace them both. I'm leaving the processor powered down until fixed; the bad cap might do damage. Fortunately, I can plug my TV directly into my HTPC and get my shows. /b The XMC two is clearly not an old unit. I’m just curious how you are going to be comfortable with a do it yourself fix on an AV component as sophisticated as this without having it run through a complete factory diagnostic? I mean how are you really going to know what’s up? Something has caused the cap. to fail and the answer to that is what’s needed. |
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Lsc
Emo VIPs 
Posts: 3,344
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Post by Lsc on May 10, 2022 8:27:24 GMT -5
My XMC-2 stopped working. If I turn it on with the power switch on the back, Blue "Emotiva" lights up in the display and the blue underline slowly crosses under "Emotiva" to the end, as usual. But then nothing else happens. None of the controls work. Before I call EMO, any suggestions. Is there any history of this problem? Sincerely Blair Is it still under warranty? If so, send to Franklin? |
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KeithL
Administrator 
Posts: 9,941
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Post by KeithL on May 10, 2022 12:02:18 GMT -5
STOP!You're getting a lot of less than helpful advice here... The XMC-2 is NOT the sort of thing where you have much chance of doing a DIY repair if something goes wrong.
1.
The unit is NOT going to pass that loopback test unless you wait AT LEAST TWO MINUTES to run it after you power the unit on. (And, even if it still fails that test, that doesn't necessarily mean that the problem is on that board anyway.)
2. From what you describe your problem may or may not be a bad capacitor... it's possible that the capacitor is the problem... but the symptoms don't really match... THAT's why you need to talk to somebody.
And, if you go mucking about, and start soldering stuff, you WILL very probably void your warranty (at least if you do so without permission).
3. The XMC-2 has a five year transferable warranty. So, if YOU bought it new, then it's almost certainly under warranty. And, if you bought it from a friend, and they bought it from us, then they can transfer their warranty to you. 4. Boards are expensive, and we almost never sell them separately, so if your unit needs service then it NEEDS SERVICE.
If your unit won't boot up... First disconnect all sources, all HDMI devices, and any trigger cables, and try again... If it still won't start then you need to call Support.
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Post by Priapulus on May 23, 2022 8:52:57 GMT -5
STOP!You're getting a lot of less than helpful advice here... The XMC-2 is NOT the sort of thing where you have much chance of doing a DIY repair if something goes wrong.
1.
The unit is NOT going to pass that loopback test unless you wait AT LEAST TWO MINUTES to run it after you power the unit on. (And, even if it still fails that test, that doesn't necessarily mean that the problem is on that board anyway.)
2. From what you describe your problem may or may not be a bad capacitor... it's possible that the capacitor is the problem... but the symptoms don't really match... THAT's why you need to talk to somebody.
And, if you go mucking about, and start soldering stuff, you WILL very probably void your warranty (at least if you do so without permission).
3. The XMC-2 has a five year transferable warranty. So, if YOU bought it new, then it's almost certainly under warranty. And, if you bought it from a friend, and they bought it from us, then they can transfer their warranty to you. 4. Boards are expensive, and we almost never sell them separately, so if your unit needs service then it NEEDS SERVICE.
If your unit won't boot up... First disconnect all sources, all HDMI devices, and any trigger cables, and try again... If it still won't start then you need to call Support. POSTSCRIPT (My XMC-2 failing to complete bootup) Well, following KeithL's advice, I cold-rebooted in test mode, waited 10 minutes (!) , then performed a loopback test, successfully. Perhaps I was too impatient with the loopback test. Now the processor is starting normally. Since then, I have repeatedly tried power-down reboots successfully. The damn'd thing is fixed. Why? Don't know. I did reseat all the internal cables and plugs. I suspect software: perhaps a boot parameter file got corrupted and the powerup test eventually corrected it? It is a mystery. So I put it all back together (thank heavens most of my external cables are labeled) and a week later, all is still good. I'm still concerned about the bulged cap in the power supply. KeithL and the warranty stopped me from fixing it (I'm an electronics technician who has replaced hundreds). Going by "it works, so don't fix it", I'm not sending it in to warranty replace the capacitor, but I still worry about it. Sincerely /blair (Canada) |
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Post by AudioHTIT on May 23, 2022 12:56:18 GMT -5
STOP!You're getting a lot of less than helpful advice here... The XMC-2 is NOT the sort of thing where you have much chance of doing a DIY repair if something goes wrong.
1.
The unit is NOT going to pass that loopback test unless you wait AT LEAST TWO MINUTES to run it after you power the unit on. (And, even if it still fails that test, that doesn't necessarily mean that the problem is on that board anyway.)
2. From what you describe your problem may or may not be a bad capacitor... it's possible that the capacitor is the problem... but the symptoms don't really match... THAT's why you need to talk to somebody.
And, if you go mucking about, and start soldering stuff, you WILL very probably void your warranty (at least if you do so without permission).
3. The XMC-2 has a five year transferable warranty. So, if YOU bought it new, then it's almost certainly under warranty. And, if you bought it from a friend, and they bought it from us, then they can transfer their warranty to you. 4. Boards are expensive, and we almost never sell them separately, so if your unit needs service then it NEEDS SERVICE.
If your unit won't boot up... First disconnect all sources, all HDMI devices, and any trigger cables, and try again... If it still won't start then you need to call Support. POSTSCRIPT (My XMC-2 failing to complete bootup) Well, following KeithL's advice, I cold-rebooted in test mode, waited 10 minutes (!) , then performed a loopback test, successfully. Perhaps I was too impatient with the loopback test. Now the processor is starting normally. Since then, I have repeatedly tried power-down reboots successfully. The damn'd thing is fixed. Why? Don't know. I did reseat all the internal cables and plugs. I suspect software: perhaps a boot parameter file got corrupted and the powerup test eventually corrected it? It is a mystery. So I put it all back together (thank heavens most of my external cables are labeled) and a week later, all is still good. I'm still concerned about the bulged cap in the power supply. KeithL and the warranty stopped me from fixing it (I'm an electronics technician who has replaced hundreds). Going by "it works, so don't fix it", I'm not sending it in to warranty replace the capacitor, but I still worry about it. Sincerely /blair (Canada) We’ll that seems like good news to me, glad you’re running again. I’d probably follow up with a picture of the bulging cap sent to Emotiva support, and that you’re an electronics tech capable of fixing it, maybe they’d approve a replacement without voiding the warranty (or maybe they’d say ‘don’t worry about it, that’s a special capacitor we call a “chubby”, it’s supposed to be that way 😉). |
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