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SP1200 internal knobs adjusting (Dor?)

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Old 19th July 2007   #1
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SP1200 internal knobs adjusting (Dor?)

I wonder what parameters in SP1200 are adjusted by tweaking the internal knobs (indicated RT4 and RT5 as far as I know) near the SSM chip?
I know those are related to Output 1 and 2 dynamic filter.. but I `d like to know whether it is cutoff start/end frequency, Q or attack/release time?
somebody owning a SP12(00), share the light!
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Old 20th July 2007   #2
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try



http://www.dxarmy.com/




a good place for 12Bit Heads
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Old 21st July 2007   #3
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Yeah, I've read that you can tweak the filters but I haven't tried messing with the knobs. I'd would like to quicken the attack if possible.

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Old 8th April 2008   #4
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Quote:
Originally Posted by Azriel_7 View Post
They adjust the "Q" of the dynamic filters, but they are RT5 and RT6.
The SP1200 service manual has the procedure for the Dynamic Filter Trim adjustment using an oscilloscope.
hey azriel

where could i find the service manual?
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Old 8th April 2008   #5
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They adjust the cut off only.

You can' t change the filter envelope with these ssm pots.
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Old 8th April 2008   #6
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Quote:
Originally Posted by Azriel_7 View Post
Not sure?
All of my Emu service manuals came from EMU before the buy out.
so yeah gonna scan it & share?
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Old 8th April 2008   #7
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Sure.

http://www.boomspot.com/files/SP1200ServiceManual.pdf

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Old 8th April 2008   #8
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thanks Dude
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Old 10th April 2008   #9
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OT... Replacement Pad/Parts

I need to replace one of the drum trigger pads on my SP1200... I've looked around, but haven't been able to find a spot that actually has any in stock...

Any suggestions?
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Old 10th April 2008   #10
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Quote:
Originally Posted by babyface_finsta View Post
I need to replace one of the drum trigger pads on my SP1200... I've looked around, but haven't been able to find a spot that actually has any in stock...

Any suggestions?

Did you try the links on the sidebar of this site?

SP1200 Repairs

If not call Bruce Forat.

There a couple other drum machines that use the same buttons. I know my roommates LinnDrum uses the same typer of button/cover.
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Old 11th April 2008   #11
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Quote:
Originally Posted by Dor View Post
Thanks mate, as always.
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