E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - Drumulator Hum and noise

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+  E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP
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| |-+  Drumulator Technical Issues / Tips
| | |-+  Drumulator Hum and noise
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Author Topic: Drumulator Hum and noise  (Read 6375 times)
dorl
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« on: March 10, 2010, 02:45:38 AM »

Hello, sorry for barging in with a question but I just got my drumulator and it is quite noisy.

I get this kind of HUM and and buzz i go crazy. i mean it also comes from the single outputs (from the toms I cant hear it but maybe because it goes through the filters and they filter it out??)

also the metronome is really noisey i mean when i plug the metronome out its really really noisy, any idea?

is it the powersupply? or something else?

thanks so much! i really was looking for so long for a good midi drumulator and till i got one its not working good Sad

d
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bedouin
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« Reply #1 on: March 10, 2010, 04:23:49 AM »

You sent me a message through YouTube I didn't get a chance to respond to.

The pictures I'm finding on-line of the Drumulator opened up don't seem to be like mine.  I haven't had it open in a long time though.

In mine there was a series of black, inch-high, and  arched either resistors or capacitors -- I'm not sure which.  When they were touching each other there was hum; when not touching each other, it was fine.  Your milage may vary. 
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dorl
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« Reply #2 on: March 10, 2010, 05:37:10 AM »

Helllo , thanks for reply.

Ill upload some photos just to be more clear.

There is a buzzing sound and a high pitch ring. from mix out and all the other outputs besides the toms which are more or less clear! (yeah considering its a 2something old)
the metronome out has A LOT of buzz to it, and the rest has both a buzz and the ringing.


 i think i know what u mean by the spider resistors bt  i didnt see any problems with them.

http://farm3.static.flickr.com/2714/4422438876_a6eaac7269_b.jpg
http://farm3.static.flickr.com/2732/4422438704_0dee583a99_b.jpg
http://farm5.static.flickr.com/4022/4422438456_1d44777ece_b.jpg
http://farm3.static.flickr.com/2766/4422438206_7741b9f992_b.jpg

uploaded some photos

dor


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bedouin
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« Reply #3 on: March 10, 2010, 05:59:14 AM »

Yours doesn't have them either . . .

Maybe I have an old revision?  Who knows.
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dorl
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« Reply #4 on: March 10, 2010, 06:19:23 AM »

do you have maybe a photo of yours?

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bedouin
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« Reply #5 on: March 10, 2010, 07:05:01 AM »

I looked for one but I couldn't find it, and not quite feeling like opening it up Smiley
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dorl
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« Reply #6 on: March 10, 2010, 07:32:21 AM »

understandable Smiley anyway i think i return my drumulator and try to bid on an SP12 Turbo, know its not really the same but its another machine i was craving for
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bedouin
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« Reply #7 on: March 10, 2010, 08:58:49 AM »

Until then, I would just open it up while turned on.  Be careful not to touch capacitors, and push down on some chips -- see if any connections are corroded.  Wiggle things around and see what makes it go away.

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dr.c
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« Reply #8 on: March 12, 2010, 03:14:37 PM »

I fixed hundreds of them, but never seen one like that with daughter boards.

Scared out, I run away....
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bedouin
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« Reply #9 on: March 12, 2010, 03:33:36 PM »

I think that's his MIDI upgrade. 

Good to know you can fix them though.  Mine will likely need a tuneup in the future.
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ambivalent
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« Reply #10 on: March 13, 2010, 07:39:36 AM »

http://cgi.ebay.de/E-mu-Drumulator----%3D-KULT-%3D-_W0QQitemZ330408303747QQcmdZViewItemQQimsxZ20100227?IMSfp=TL100227134005r35116#ht_648wt_1167

Did you buy it from this auction? If not, the seller might be able to help with schematics for the sound expansion and MIDI upgrade.
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dr.c
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« Reply #11 on: March 13, 2010, 11:35:27 AM »

Please verify the power supply voltages first.
As well, the caps in the red frame are often sensitive to torsion, etc...

I changed it :

go to : http://cjoint.com/?dntN2lyjfk

Move a bit the caps, bend them, see if there is a change.

Do you need the diagrams ?
« Last Edit: March 13, 2010, 11:41:05 AM by dr.c » Logged
dr.c
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« Reply #12 on: March 13, 2010, 11:43:46 AM »

MIDI Mod ! It looks like it !

My God...
The original ones from E-Mu were not even one inch by side and there was the OS Eprom to change, that's all !

Geee....
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Dimensional Space
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« Reply #13 on: December 03, 2011, 02:36:46 AM »

The hum problems sounds like a bad power supply.  As far as the noise goes... Pick up a Behringer Denoiser.  Wow, what a difference.  I hate Behringer stuff but this unit is no joke.  I use it on the Sp1200 and it really cleans up the ambient hiss and rounds out the sound too like a compressor.   I use the Expander sparingly also which helps round out kicks etc. .     I think I will eventually replace it with a Presonus ACP-88 when I pick one up again.   But anyone that doesn't like the SP-12/1200 noise should pick a Denoiser.   Recommended.

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Elmbeatz
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« Reply #14 on: December 03, 2011, 05:46:54 AM »

The hum problems sounds like a bad power supply.  As far as the noise goes... Pick up a Behringer Denoiser.  Wow, what a difference.  I hate Behringer stuff but this unit is no joke.  I use it on the Sp1200 and it really cleans up the ambient hiss and rounds out the sound too like a compressor.   I use the Expander sparingly also which helps round out kicks etc. .     I think I will eventually replace it with a Presonus ACP-88 when I pick one up again.   But anyone that doesn't like the SP-12/1200 noise should pick a Denoiser.   Recommended.



Thanks for the tip!
Which exact unit are you talking of?
« Last Edit: December 03, 2011, 05:49:06 AM by Elmbeatz » Logged
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E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - Drumulator Hum and noise

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