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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: jbell on August 10, 2015, 04:35:40 PM
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I can't seem to get the external power to stay on for an entire show. I use internal AA's as well so I haven't lost a show. What happens is after about 10-15 minutes of having the external power on the power light starts to flicker and then shuts off and it switches to internal batteries. It isn't a cable I have 3 different cables and it happens with all of them. Could this be a problem with one of the fuses?? Where is the best place to have it worked on state side??
Edit: I'm using Tekkeon batteries 3450 and 3300. The problem occurs not matter which battery I use so I've ruled those out as well.
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I can't seem to get the external power to stay on for an entire show. I use internal AA's as well so I haven't lost a show. What happens is after about 10-15 minutes of having the external power on the power light starts to flicker and then shuts off and it switches to internal batteries. It isn't a cable I have 3 different cables and it happens with all of them. Could this be a problem with ons of the fuses?? Where is the best place to have it worked on state side??
Edit: I'm using Tekkeon batteries 3450 and 3300. The problem occurs not matter which battery I use so I've ruled those out as well.
If you send it to Redding, they'll most likely send it Germany. Vark will probably be willing to look at it.
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Have you run it off the wall wart or an external 12v AC adapter?
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Don't have one
Have you run it off the wall wart or an external 12v AC adapter?
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I can't remember the voltage range for the 5U, but if you're setting your Tekkeon's at the low end of the range, I'd suggest using the voltage more towards the high end of the range. That's how I run my VMS's to make sure that I don't go below the lower voltage limit in case the batteries sag at all.
Might want to get your meter out and check voltage the tekkeons are giving you when the vms switches over. Alternatively, the meter on the front of the unit is also a volt meter, so check to make sure your voltage is staying well up in the green zone the whole time before it switches over. If it dips down towards the red zone before it switches over it's an indication that your external battery is your issue.
Finally, though highly unlikely they're loose, go under the battery cover and make sure the fuses are securely seated. I suppose in some theoretical way, the fuse in the external circuit could lose continuity when the VMS warms up.
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I'm running the tekkeons at 12V which is recommended, but you can run it as low as 5V so it isn't a battery issue. A fully charged tekkeon shouldn't sag below 5V after 15 minutes of run time.
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I'm running the tekkeons at 12V which is recommended, but you can run it as low as 5V so it isn't a battery issue. A fully charged tekkeon shouldn't sag below 5V after 15 minutes of run time.
I seriously doubt your vms is messed up, Tekkeons are nice but not trustworthy, I've had plenty of them work great and ones that where cracp and there plenty of horror stories out there of frying gear. Pop the battery cover off and see if the fuses are still in place.Another thing is the vms pulls power even if you have it on the off position. That's why on some tekkeons you have to set the battery then plug it into the vms then turn the unit on.those where the auto select ones.
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I've used 3 different tekkeons and have had the same issue, but not all the time. I have it running in front of the stereo now and it is working fine. At ARU in Athens I had one tekkeon with a full charge that had the low battery light flashing red even though the battery was fully charged. Maybe I should try my Naztech battery.
Edit: Been running it for about 45 minutes at home with the tekkeons and can't get the problem to occur. :hmmm:
I'm running the tekkeons at 12V which is recommended, but you can run it as low as 5V so it isn't a battery issue. A fully charged tekkeon shouldn't sag below 5V after 15 minutes of run time.
I seriously doubt your vms is messed up, Tekkeons are nice but not trustworthy, I've had plenty of them work great and ones that where cracp and there plenty of horror stories out there of frying gear. Pop the battery cover off and see if the fuses are still in place.Another thing is the vms pulls power even if you have it on the off position. That's why on some tekkeons you have to set the battery then plug it into the vms then turn the unit on.those where the auto select ones.
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I've used 3 different tekkeons and have had the same issue, but not all the time. I have it running in front of the stereo now and it is working fine. At ARU in Athens I had one tekkeon with a full charge that had the low battery light flashing red even though the battery was fully charged. Maybe I should try my Naztech battery.
Edit: Been running it for about 45 minutes at home with the tekkeons and can't get the problem to occur. :hmmm:
I'm running the tekkeons at 12V which is recommended, but you can run it as low as 5V so it isn't a battery issue. A fully charged tekkeon shouldn't sag below 5V after 15 minutes of run time.
I seriously doubt your vms is messed up, Tekkeons are nice but not trustworthy, I've had plenty of them work great and ones that where cracp and there plenty of horror stories out there of frying gear. Pop the battery cover off and see if the fuses are still in place.Another thing is the vms pulls power even if you have it on the off position. That's why on some tekkeons you have to set the battery then plug it into the vms then turn the unit on.those where the auto select ones.
Sounds like its the power cable your using then.
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It has happened with 2 different cables!! Could it be an old fuse causing this behavior??
I've used 3 different tekkeons and have had the same issue, but not all the time. I have it running in front of the stereo now and it is working fine. At ARU in Athens I had one tekkeon with a full charge that had the low battery light flashing red even though the battery was fully charged. Maybe I should try my Naztech battery.
Edit: Been running it for about 45 minutes at home with the tekkeons and can't get the problem to occur. :hmmm:
I'm running the tekkeons at 12V which is recommended, but you can run it as low as 5V so it isn't a battery issue. A fully charged tekkeon shouldn't sag below 5V after 15 minutes of run time.
I seriously doubt your vms is messed up, Tekkeons are nice but not trustworthy, I've had plenty of them work great and ones that where cracp and there plenty of horror stories out there of frying gear. Pop the battery cover off and see if the fuses are still in place.Another thing is the vms pulls power even if you have it on the off position. That's why on some tekkeons you have to set the battery then plug it into the vms then turn the unit on.those where the auto select ones.
Sounds like its the power cable your using then.
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Sounds like its the power cable your using then.
Fucking cable makers >:(
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I'm pretty sure it isn't the cable you made Ted. It was happening with the stock tekkeon cable as well. I do also realize you're being sarcastic.
Sounds like its the power cable your using then.
Fucking cable makers >:(
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Jon. Can you get the issue to happen if you wiggle the cable connect ion on the socket?. I've had the socket on one of my recorders go bad on me in the past where one of the connectors inside the socket sorta loosened up so that it wouldn't make reliable connection with both poles.
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Sounds like its the power cable your using then.
Fucking cable makers >:(
You know I love ya Ted!
Jon pull the fuse and put another one in it. I've replaced a few it's a pain in the ass I used some small tweezers to do it.Ive just stole the fuses from the battery Side I never run internal batteries with the 5u.Til you get some new ones see if that helps.
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Today during testing I tried that and it stayed connected. When the battery has lost connection during a show The battery is setting in the bag not being moved. Once it loses connection I have done exactly what you are suggestion without success. If I unplug the battery and then reconnect it the battery kicks back in and then eventually loses connection. The DC input on the VMS looks solid and doesn't appear to be lose or show signs of damage. I have had several shows where this doesn't occur and then it randomly does it again. Very strange and annoying
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Changed out my fuses with new ones and have new spares, but would like to grab another set. Any suggestions besides redding they are back ordered there. Thanks
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Same problem at HWA tonight looks like it is going to have to be sent to redding. >:(
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Temperature or vibration issue, of the VMS or battery?
Mechanical interference issues from running in a bag?
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I'm not sure what the deal is I've tried 3 cables 3 different tekkeons and a Naztech. I'm tired of fucking with it so it is going in for repair. I guess I'll be running the PSP2 for a while.
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Why not just use batteries... I only power my vms02ib with AA...
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Because I want to use externals and AA's as a back up!
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Because I want to use externals and AA's as a back up!
For safety to prevent LORAs (loss of recording accidents) I power pretty much all of my gear pretty much all of the time from externals with internals acting as backup. The exception of course is the one or two undercover shows I've recorded in the last five years or so.
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Is it possible that having both the internal AA's and the external power supply connected is causing this issue? Have you tried running the VMS at home with just the Tekkeon and no AA's inside?
I used to run a VMS 5u with rechargeable Powerex AA's with no problems. It's just kind of a pain to recharge 8 batteries after each show, but actually never had a problem running that way.
Hope you get this figured out!
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Ever get this figured out John? I have been running 9.6v 2,000mah NIMH RC batteries to power my VMS02ib just because they way my setup is now and its a PITA to keep taking my VMS out of the bag just to put AA batteries in. Normally I leave the AA internals in every one of my devices like Tonedeaf said as a backup, but DAMN I hate changing the AA's out on the vms. This past weekend at Summerdance, I didn't even put the AA's in at all, and just ran off of the external RC batteries. DAMN it felt good not to pry my vms open every day to change out batteries :) But I could just leave the same pair of AA's in all weekend since I'll be using external power, so I'll start doing that from now. The Tamiya RC plugs are shit though. I was losing my VMS signal at the beginning of day 3 but noticed immediately, and luckily was running my mk4>pfa>70D so I had that as a backup 8) And the issue was from a shitty Tamiya plug connection :( I bought some different connectors that I'm going to put on all of my RC batts so that I have a much more durable connection than a Tamiya plug :P ;D
I LOVE the RC battery route so far! And for local shows, I can just usse my RC batts. Like CK said above, I noticed my vms using juice when it was OFF too, so I just keep my RC batts unplugged until I get setup at the venue! And each 2,000mah RC battery lasts about 15 hours with my VMS02ib :) 8)
Hopefully you get this figured out cheaply and quickly! I am dreading sending my mk41 caps to Germany, but one of them is 35 years old and never been serviced :P I can get some new Grey mk41 housings though while they're home lol ;D Might be cheaper to sell my pair and buy a new matched set?!?! Anyway, please let me know what happens with this, because I'm very curious!
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Sent it to Germany to get fixed. It will be gone for a few months.
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Sent it to Germany to get fixed. It will be gone for a few months.
It might not take that long. I've had stuff out and come back in a month. It kinda all depends on when Redding gets enough stuff to justify a shipment. If you happen to send your stuff in right before they send a shipment, it will definitely be less than three months before you get it back.
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The boards had to be replaced due to battery acid damage!! I never had batteries leak so it happened before my time. Just an update since I had a few folks pm and ask.
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That is really unfortunate. What'd they charge? Did you get the damaged boards back?
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It wasn't cheap and didn't get the boards back.
That is really unfortunate. What'd they charge? Did you get the damaged boards back?