Vintage Synth Repair

As my DW8000 is sidelined, I figured I'd fire up the ARP Omni Mk1 I 
bought on eBay for $95, some repair necesary.

Well, here's what's wrong so far.  First, I don't notice any 
difference at all with the Voice buttons on the right.  The Bass 
keys...most of them Do Not Work.  The polysynth string section seems 
to be ok except for dead top note, but the bass keys have all kinds 
of problems.  Some work, some interrupt a working note, some do 
nothing, and one or two of them actually modulate a working note.  
Bottom C has gone vibrato, no notes sound through low G, wich is the 
one that cross-modulates other notes, low F is the first note with no 
sound that will cut out a higher working bass key...etc... the Attack 
and Release sliders on string section do Nothing...LFO Speed slider 
is REAL touchy, all the range of it seems to be on the very rightmost 
of the slider, Master Volume switch, in addition to being snapped off 
flush with the panel, also does nothing.  Chorus Phaser also does 
nothing.  Also, half the slider caps on the top row are gone along 
with the caps for the Cello and 8' buttons.  Also, buttons tend to 
stick.

On the plus side...none of the keys are cracked off as is common on 
old ARP's...  

So, did I get soaked for $95?  ($70 + $25 ship?)

What must I do?

Tim Hansen

Many of the sliders can be used in other ARP's. I know
the Odyssey uses the same ones. The values would have
to be verified though since the Omni uses a wider
range of slider values than does the Odyssey.

--- czvz <czvz@...> wrote:
> Here's another question.  
> It seems to me like a busted Omni/2 with lots of
> problems would be best used for parts for other ARP
> gear.  
> What ARP Omni and Omni 2 parts can be used in other
> ARP gear?  
> 
>   ----- Original Message ----- 
>   From: Timothy Hansen <nationwideclyde@...>
> 
>   To: vintagesynthrepair@yahoogroups.com 
>   Sent: Saturday, January 11, 2003 7:43 PM
>   Subject: [vintagesynthrepair] A Host of ARP Omni
> Problems
> 
> 
>   As my DW8000 is sidelined, I figured I'd fire up
> the ARP Omni Mk1 I 
>   bought on eBay for $95, some repair necesary.
> 
>   Well, here's what's wrong so far.  First, I don't
> notice any 
>   difference at all with the Voice buttons on the
> right.  The Bass 
>   keys...most of them Do Not Work.  The polysynth
> string section seems 
>   to be ok except for dead top note, but the bass
> keys have all kinds 
>   of problems.  Some work, some interrupt a working
> note, some do 
>   nothing, and one or two of them actually modulate
> a working note.  
>   Bottom C has gone vibrato, no notes sound through
> low G, wich is the 
>   one that cross-modulates other notes, low F is the
> first note with no 
>   sound that will cut out a higher working bass
> key...etc... the Attack 
>   and Release sliders on string section do
> Nothing...LFO Speed slider 
>   is REAL touchy, all the range of it seems to be on
> the very rightmost 
>   of the slider, Master Volume switch, in addition
> to being snapped off 
>   flush with the panel, also does nothing.  Chorus
> Phaser also does 
>   nothing.  Also, half the slider caps on the top
> row are gone along 
>   with the caps for the Cello and 8' buttons.  Also,
> buttons tend to 
>   stick.
> 
>   On the plus side...none of the keys are cracked
> off as is common on 
>   old ARP's...  
> 
>   So, did I get soaked for $95?  ($70 + $25 ship?)
> 
>   What must I do?
> 
>   Tim Hansen
> 
> 
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>   To unsubscribe from this group, send an email to:
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Hi Tim,

If your OMNI seems to be out of order.... It could maybe save mine !!!! I am
searching for the master oscillator :

MK50240 (octave divider) from Mostek for my ARP OMNI MK1

I only need this IC.... I can trade with various SSM and CEM if you want....

Let me know...

Best Regards ;-)

@lexandre


----- Original Message -----

From: <nationwideclyde@...>
To: <vintagesynthrepair@yahoogroups.com>
Sent: Sunday, January 12, 2003 1:43 AM
Subject: [vintagesynthrepair] A Host of ARP Omni Problems


> As my DW8000 is sidelined, I figured I'd fire up the ARP Omni Mk1 I
> bought on eBay for $95, some repair necesary.
>
> Well, here's what's wrong so far.  First, I don't notice any
> difference at all with the Voice buttons on the right.  The Bass
> keys...most of them Do Not Work.  The polysynth string section seems
> to be ok except for dead top note, but the bass keys have all kinds
> of problems.  Some work, some interrupt a working note, some do
> nothing, and one or two of them actually modulate a working note.
> Bottom C has gone vibrato, no notes sound through low G, wich is the
> one that cross-modulates other notes, low F is the first note with no
> sound that will cut out a higher working bass key...etc... the Attack
> and Release sliders on string section do Nothing...LFO Speed slider
> is REAL touchy, all the range of it seems to be on the very rightmost
> of the slider, Master Volume switch, in addition to being snapped off
> flush with the panel, also does nothing.  Chorus Phaser also does
> nothing.  Also, half the slider caps on the top row are gone along
> with the caps for the Cello and 8' buttons.  Also, buttons tend to
> stick.
>
> On the plus side...none of the keys are cracked off as is common on
> old ARP's...
>
> So, did I get soaked for $95?  ($70 + $25 ship?)
>
> What must I do?
>
> Tim Hansen
>
>
> To unsubscribe from this group, send an email to:
> vintagesynthrepair-unsubscribe@egroups.com
>
>
>
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>
>
>