[sdiy] juno-6

Mark Smith Mark.Smith at pace.co.uk
Thu Aug 15 17:09:31 CEST 2002


cheers...

looking more carefully at the schematics I do actually have the circuit. It is not clearly labelled as chorus, but has some MN31xx BBD chips.

I will try scoping it up and seeing if there is anything obvious.

mark

> -----Original Message-----
> From:	J. Larry Hendry [SMTP:jlarryh at iquest.net]
> Sent:	Thursday, August 15, 2002 4:04 PM
> To:	Mark Smith; synth-diy at dropmix.xs4all.nl
> Subject:	Re: [sdiy] juno-6
> 
> I have the schematics for the Juno 60.  It has a chorus board identified as
> OPH189A with 052H412A printed on the PCB.  If it is the same, I can scan and
> send these to you.
> 
> Larry Hendry
> 
> 
> ----- Original Message -----
> From: Mark Smith <Mark.Smith at pace.co.uk>
> To: <synth-diy at dropmix.xs4all.nl>
> Sent: Thursday, August 15, 2002 9:36 AM
> Subject: [sdiy] juno-6
> 
> 
> finally got around to plugging my juno in after moving house and I have
> noticed a very distinct 50Hz-ish mains hum when I select either chorus 1 or
> 2.
> I cannot remember hearing this previously so not sure if it's a fault, I
> don't believe it should be there.
> 
> I have schems for the main board, psu and rear panel but not chorus so
> tracking the fault is tricky.
> 
> Any help would be appreciated.
> 
> cheers
> 
> mark
> 
> 
> 
> 
> 



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