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Gear / Technical Help => Recording Gear => Topic started by: chris_jones on July 28, 2005, 01:58:29 AM
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Has anyone had a unit die on them mid-set? I lost an absolutely magic set tonight because the thing just up and quit on me about 70 minutes in. 6000mAh battery that didn't drop below 7.6v. Powered back on when I realized it shutdown, and began recording again no problem.
Postulating that it was heat (venue was not air conditioned in recent heat wave in NYC; had to have been 100+ degrees with no air circulation. 722 was out in the open, though, not in bag.
Ideas, anyone?
Chris
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thanks for the report. I dont know if it is really the same thing, but I lost a firewire hard drive yesterday cuz of heat i believe. damn thing just shutdown yesterday while i was saving a show to it. was about 90 here yesterday.
ima get a cooling pad for mine.
+T for the trouble
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so I posted this on the other list, but what split are you using? I know Michael had very odd things happen using teh 4 Gb split.
Also, where was the unit, buried in a bag? out in the open, etc?
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chris, did you replace the hard drive yourself? you might have put in a drive that doesn't like the heat
SD did a bunch of tests in extreme heat and they claim it shouldn't be an issue
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did you get an error message?
what firmware are you running?
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My 744T has gotten "cook a grillie" hot a number of times being buried in a bag at indoor (Asheville Panic) and outdoor (Richmond Big Summer Classic) shows and has never had a shutdown. And the BSC was a 8+ hour marathon event. The unit should be able to take some major heat punishment.
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was it installed in a rack with other heat producing equipment?
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I had thermal issue at Cochella but not since.. Firmware is now 1.37 and seems fine although it does get hot.. Dino JR got real hot, Ween (Outside got hotter) but stayed with me.
I am not sure what the issue is... Thinking of doind a Compact Flash experiment and seeing it the heat generated over time is decreased.
Hoping for no issues at ACL this year.
Only thing I can figure is - keep air moving around the unit. When burried in a bag or on the ground with no air it seems to get hotter faster.
CQBert
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Was running 1.42 firmware.
Might be the culprit. Will revert to 1.37.
Unit didn't shutdown properly during crash, and I have a corrupt file. Ran HD repair on restart, but file won't play on 722. Anyone know how to try and more effectively repair an interleaved .wav?
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I had a somewhat fresh battery, 1.5 hours on it, and it wouldn't keep the unit on for longer than 10 seconds, still at 7.4 and wasn't flashing, swapped batteries and ran just fine after that. Poped the "bad" one in after the set ot see if it was heat or not and it worked just fine for another hour or so then took 12+ hours to recharge.
gave a bad HD and had to repair. repaired something but couldn't play it and wasn't any music since I never hit record.
firmware 1.37
in portabrace and sonic case in the sun on cement.
guessing the battery was hot or something
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Was running 1.42 firmware.
Might be the culprit. Will revert to 1.37.
Unit didn't shutdown properly during crash, and I have a corrupt file. Ran HD repair on restart, but file won't play on 722. Anyone know how to try and more effectively repair an interleaved .wav?
did you try transferring it to your computer and reading it in any audio app there?
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I'm pretty sure the batteries have themal circuitry for protection while charging which may the culprit for this shutdown.
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mine may have done this as well but i thought it was because my battery died. I had already put about 5 hours on it....mostly with using the pre's and not line in. at this point i can't be for certain. FWIW i didn't run mine in the portabrace at the time but in my bag. I noticed that my 722 was hotter when not run in the portabrace? maybe the portabrace acts as heat sink of some sorts as well ???
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I'm running stock HD, and a power2000 6000mah li-ion cell. are these batteries reputable?
Battery never went below 7.6 volts. began at 8.1v. ran the same battery for nearly 4 hours a month ago with no problems.
I'm blaming heat 'cause it was literally an oven in the venue, but box truthfully box didn't feel that hot.
Random box shutdown makes me nervous. I bought the thing for 'tape' backup and stealth, but I'm not happy if I need to sweat bullets wondering if the unit will last for an 80 minute set.
Chris
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Yeah, I traced my problems to the 4G splits. I initially thought that there was a heat related issue but ruled that out after extended testing. Also, when my unit had issues, it quit recording but it did not shut down completely.
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i was running 2GB splits.
touched base with sound devices. we'll see what happens. a caveat, i guess. doesn't thrill me.
chris
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i'd say go back to v1.37 of firmware. i'm still sticking with it
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Think I might have a lemon; thing died while I was scrolling through the menu with the unit plugged into the wall...rolled back to 1.37.
I know it sounds ridiculous, but is there some kind of burn-in period for these things?
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Think I might have a lemon; thing died while I was scrolling through the menu with the unit plugged into the wall...rolled back to 1.37.
I know it sounds ridiculous, but is there some kind of burn-in period for these things?
no....all your combined problems seem to be related to your particular unit. Send a friendly but firm email to SD demanding a new one and see if you encounter the same problems. at least that's what i would do if I was experiencing the same problems.
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mine may have done this as well but i thought it was because my battery died. I had already put about 5 hours on it....mostly with using the pre's and not line in. at this point i can't be for certain. FWIW i didn't run mine in the portabrace at the time but in my bag. I noticed that my 722 was hotter when not run in the portabrace? maybe the portabrace acts as heat sink of some sorts as well ???
no doubt the PB helps the thing get hotter, imo.
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actually I have noticed that the unit stays cooler in the portrabrace than some other solutions...I am guessing it is because the portabrace gives it room off the back to vent, whereas otherwise, some folks are using foam, etc. to get it to set flat and it has no room to vent off the back
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actually I have noticed that the unit stays cooler in the portrabrace than some other solutions...I am guessing it is because the portabrace gives it room off the back to vent, whereas otherwise, some folks are using foam, etc. to get it to set flat and it has no room to vent off the back
makes sense.
so tell me why I should pick this up? I'd finally resolved to get on the list, then read this heat thread. I just don't ever have this happen with dat. really questioning whether I ought to wait until a more field appropriate unit hits the market?
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marc, this thread is the first I heard of heat issues and I, boswell, waldron, fraley, mic d and scott brown have all been using the unit without problems
edited to say that the unit does get hot...but I have not had any issues of that sort
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actually I have noticed that the unit stays cooler in the portrabrace than some other solutions...I am guessing it is because the portabrace gives it room off the back to vent, whereas otherwise, some folks are using foam, etc. to get it to set flat and it has no room to vent off the back
i mentioned the same eralier in the thread. i think the front and backk walls of the PB act as a heat sink. My 722 definitely ran hotter in my tamrac bag than when i had it in it's PB.
edit: i have also been using the SD unit without any problems as well :)
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Update:
SD found a faulty connection on the power board of my 722. Cause of shutdown was indeed _not_ heat, but what they explained as a loosely soldered joint.
Just FYI. Very impressed with response time. Extraordinary service and support.
Chris
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Update:
SD found a faulty connection on the power board of my 722. Cause of shutdown was indeed _not_ heat, but what they explained as a loosely soldered joint.
Just FYI. Very impressed with response time. Extraordinary service and support.
Chris
Thats good to hear they solved the problem.
on another heat note i have read on other forums that a user had no problems during a week long assignment @ 40-49C w/ his 744t