#11
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Quote:
Sorry for what happened. Hope it will be resolved soon.
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There are two means of refuge from the miseries of life: music and cats Albert Schweitzer |
#12
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---Could it be the proximity of a hot tube to that cap?
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#13
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Joe,
I'm so sorry for you. Glad the rest of your system is ok. I'm sure ARC will make all gets resolved correctly. Mike
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Mike |
#14
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I think that that is where that cap happened to land?
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Source: Playback Designs MPS-5, Micro-Seiki BL99V, MA505 Mk2, Lyra Dorian, Denon 103D, RCM Sensor Phono Stage. Amplification: Cary SLP-05 pre, Cary CAD-211AE, SGR EL30S power, Marchand XM44. Speakers: Acapella High Violon, JL Audio F110 subwoofer pair. Pictures here |
#15
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Such a bad luck. There has been and always will be components which will fail prematurely, I'm sure ARC does some burn-in process but still..
I had one out of warranty second-hand power amp go bad and the local importer was kind enough to make mutually satisfying arrangements. Kudos to ARC and their dealer's organisation. |
#16
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One electrolytic capacitor of your amplifier just failed, perhaps shorting itself - nothing too serious. If you look at the photo you will see that it broke at the diagonal cross on top - this zone is purposely etched to weaken the aluminum can, avoiding a too violent explosion in case of failure. Happily this type of faults in the power supply are most of time very simple to solve - replacing the capacitor and at maximum a few power diodes and inserting a new fuse will have it as new again!
BTW, inserting an electrolytic with the wrong polarity in a circuit usually achieves the same effect - a common occurrence in electronics practical classes! Last edited by microstrip; 09-23-2012 at 02:18 PM. |
#17
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Agree with New guy that that's a vented cap (totally!) but something on the output caused it. I had an output supply cap spilt like that and shoot more steam out than an old tea kettle. Very frightening!
Hope you're back in business soon. |
#18
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Well, glad to hear that it's likely the cap. Hopefully not the rectifier as well. As for me, strangely, I do not feel that unhappy. Perhaps I was not looking forward to the 600hrs burn-in or maybe it's because I get to spend some more time with my dealer's ref 210s. This was the same ref 210s I bought 2 years ago but returned (full refund) to him insisting that there was something wrong (nothing wrong - my room was the problem - another story for another time). Took his ref 110s instead.
Anyway, he wanted to pickup the faulty unit anytime yesterday (on a Sunday) but I told him I was not free. Told him to come tonight. How's that for service ? Regards, Joe Ling
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Source 1 - Bergmann Sleipner + Benz Micro LP-S + ARC ref phono 10 (should have done this ages ago) Source 2 - Avid Acutus SP reference + Thales Reference tone arm + Benz Micro LPS (DS Audio Master 1 broken tip repaired but cost me USD2k. Still having issues - channel imbalance - back to dealer. However, channel issues not withstanding, sounded very very nice. Need to get it back soonest) Source 3 - DCS Vivaldi + Antelope reference clock or Cybershaft Op18 (not floating my boat so far) Source 5 - ROON ROCK with Aurender W20 as NAS & 2 units of SOTM switch with 10M input (the new frontier but still cannot beat CD for now) - ROON endpoint - Vivaldi upsampler Amplification - Naim Statement Speakers - ProAc Carbon 8 + JL FM113 x2 (replacement purchased - Stella Utopia EVO but due to lockdown, could be a year's wait) Purepower 2000 x 2 (&$@#% but sounds nice) Shunyata Denali X 2 |
#19
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Similar experience but different component. Four days after purchase, roughly 7 hours use, an output coupling capacitor (unmarked white Teflon cap) failed, taking with it 3 KT 120 tubes (or vice versa). Capacitor was replaced after a month's wait together with 3 output tubes. 250 hours later everything's fine, knock on wood.
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#20
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McIntosh owners have the comfort of knowing that they can rely on the EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM. A collection of technologies that enhance performance and reliability while protecting the amplifier and loudspeakers. POWER GUARD® A waveform comparison circuit continuously monitors both input and output signals. Power Guard dynamically adjusts the input level to avoid clipping while preventing harsh sounding distortion. SENTRY MONITOR® TUBE PROTECTION Fuse-less short-circuit protection circuit disengages the output stage before current exceeds safe operating level – resets automatically. |
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