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Post by fludimir on Jan 3, 2017 8:14:36 GMT -5
Is it ok to plug/unplug analog cables when XMC is in "video pass" standby mode, or better fully turn it off and then change cables? I'm sure that it is bad idea to connect hdmi on the fly, as xmc still uses hdmi connection in video-standby mode, but what about analog inputs/outputs and coax? Are they fully switched off when XMC in video-standby mode?
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Post by wilburthegoose on Jan 3, 2017 8:18:50 GMT -5
Turn off the XMC-1. Cheap insurance.
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Post by vneal on Jan 3, 2017 8:23:52 GMT -5
I don't think it matters on video but power down for safety
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Post by fludimir on Jan 3, 2017 8:37:34 GMT -5
Im sure that full turn-off is totally safe, but if xmc in video-standby mode turns all audio relays off than its no difference. And cable switch will be much faster, wait each time 2 minutes for xmc load with turning on-off all amps by trigger is some kind of pain, at least I want to know that it isnt needless pain. So who can say how it internally works?
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Post by monkumonku on Jan 3, 2017 10:16:33 GMT -5
Im sure that full turn-off is totally safe, but if xmc in video-standby mode turns all audio relays off than its no difference. And cable switch will be much faster, wait each time 2 minutes for xmc load with turning on-off all amps by trigger is some kind of pain, at least I want to know that it isnt needless pain. So who can say how it internally works? Emotiva support can tell you. You're wasting your time asking the armchair quarterbacks in the Lounge because how would any of us really know the answer? Personally, I would not do any connections while the unit is on. That's just asking for trouble. Better to be safe and patient. |
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LCSeminole
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Res firma mitescere nescit.
Posts: 20,494
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Post by LCSeminole on Jan 3, 2017 10:37:43 GMT -5
Im sure that full turn-off is totally safe, but if xmc in video-standby mode turns all audio relays off than its no difference. And cable switch will be much faster, wait each time 2 minutes for xmc load with turning on-off all amps by trigger is some kind of pain, at least I want to know that it isnt needless pain. So who can say how it internally works? Emotiva support can tell you. You're wasting your time asking the armchair quarterbacks in the Lounge because how would any of us really know the answer? Personally, I would not do any connections while the unit is on. That's just asking for trouble. Better to be safe and patient. I agree with Monku, but just remember you may have to wait a few days to a week if their Tech Support staff is away at CES 2017 in Las Vegas this week. |
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Post by millst on Jan 3, 2017 11:37:33 GMT -5
HDMI is designed to support hot-plugging. One of the pins is dedicated to hot plug detect. Yet, some manufacturers advise against it. Maybe their products aren't to spec or they're concerned about something like differing grounds.
Regardless of what you're changing, it's always going to be safer to change cables with devices off e.g. you might miss and short something unexpected.
-tm
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Post by 405x5 on Jan 3, 2017 11:43:21 GMT -5
Remembering the XMC-1 is a PREAMP...........it's equally important to have your AMPLIFIER shut off before making those analog connections.
Either way shut em both off when making connections.
Bill
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Post by fludimir on Jan 3, 2017 11:57:38 GMT -5
I'm always turning off amplifiers when changing interconnects, but while XPA turns on in some seconds XMC requires 2 minutes, and triggers connected amplifiers to turn on-off while loaded. Thats why I wanna not fully disconnect it but turn off to video-standby mode. It may be that additional on-off cycles for amplifiers are more harmful than hot-plugging cables in xmc..
>HDMI is designed to support hot-plugging. One of the pins is dedicated to hot plug detect. Yet, some manufacturers advise against it. Maybe their products aren't to spec or they're concerned about something like differing grounds.
Yes, while it designed there are a lot of cases where hdmi port was died on hot plug, so I never hotplug hdmi in XMC. But I've seen many times man changing analog cable on preamp (not emotiva), amplifier, even speaker cable and all was ok.
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Post by 405x5 on Jan 3, 2017 12:20:59 GMT -5
Video pass standby mode is fine for having your system back up quicker, but that's a separate issue from swapping cables with the power on.
I mean really, why would you want to swap cables with the power on anyway? (too much of a hurry it seems to me)
Bill
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geebo
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Post by geebo on Jan 3, 2017 12:23:23 GMT -5
I'm always turning off amplifiers when changing interconnects, but while XPA turns on in some seconds XMC requires 2 minutes, and triggers connected amplifiers to turn on-off while loaded. Thats why I wanna not fully disconnect it but turn off to video-standby mode. It may be that additional on-off cycles for amplifiers are more harmful than hot-plugging cables in xmc.. >HDMI is designed to support hot-plugging. One of the pins is dedicated to hot plug detect. Yet, some manufacturers advise against it. Maybe their products aren't to spec or they're concerned about something like differing grounds. Yes, while it designed there are a lot of cases where hdmi port was died on hot plug, so I never hotplug hdmi in XMC. But I've seen many times man changing analog cable on preamp (not emotiva), amplifier, even speaker cable and all was ok. Two minutes? Mine takes 45 seconds. |
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Post by junchoon on Jan 4, 2017 20:04:13 GMT -5
HDMI is designed to support hot-plugging. One of the pins is dedicated to hot plug detect. Yet, some manufacturers advise against it. Maybe their products aren't to spec or they're concerned about something like differing grounds. Regardless of what you're changing, it's always going to be safer to change cables with devices off e.g. you might miss and short something unexpected. -tm I have seen enough cases of hdmi board problem arising from hot plugging that I would advise against it. better safe than sorry. cheers, wps |
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Post by Jim on Jan 4, 2017 20:34:16 GMT -5
HDMI is designed to support hot-plugging. One of the pins is dedicated to hot plug detect. Yet, some manufacturers advise against it. Maybe their products aren't to spec or they're concerned about something like differing grounds. Regardless of what you're changing, it's always going to be safer to change cables with devices off e.g. you might miss and short something unexpected. -tm I have seen enough cases of hdmi board problem arising from hot plugging that I would advise against it. better safe than sorry. cheers, wps Speaking as someone who cooked a fragile chip that handled HDCP negotiation on an older projector by hot plugging.... I agree with better safe than sorry. |
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klinemj
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Post by klinemj on Jan 4, 2017 21:06:22 GMT -5
I have hot plugged my PC to XMC a lot. No issues...so far.
Mark
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Post by socketman on Jan 13, 2017 14:10:18 GMT -5
FWIW, I have hotplugged HDMI on the XMC-1 on several occasions and had no ill effects. But having said that I don't really think its the best idea in the long run but sometimes in the heat of the moment we do things we should not. I had an hdmi cable arc on my Denon 3311 one time while messing around behind my equipment stand while everything was on and the Denon shut down. I thought for sure it was going to be toast since it would not turn back on initially. I unplugged it from the wall for a few minutes and then it fired back up and I am still using it to this day, consider myself lucky. Food for thought.
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Post by fludimir on Jan 20, 2017 16:51:56 GMT -5
Got answer from support
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