From: jammie.emma <jammie.emma@...>
Subject: [emax] Re: high whine in power supply
To: emax@yahoogroups.com
Date: Thursday, February 26, 2009, 10:22 PM
--- In emax@yahoogroups. com, sm papke <mothrecords@ ...> wrote:
>
> THE HIGH WINE IS COMING FROM THE HI VOLTAGE AC CONVERTER WHEN THE
LCD BACK LIGHT GETS WEEK THE back light is like a capacitor they get
week over time this produces a tone of about 10khz to 20khz very
annoying just replace the back light the german company e-foil make
various el strips for different lcds the one for the emax 1 and 2
they cost 16 euros
you can add a high frequency noise suppressor cap between the positive
and earth on the el connections as a back up
to replace all the caps is going to cost about £20
some of the transistors and ic chips on the psu are no longer made
and cost the earth very expensive to get hold of some and minimum
order is 10
i found a brand new replacement switching psu it senses the voltage
and works to that voltage
its regulated supplies and they come with 3 year manufacturers
warranty they sit in exactly the same place as old psu and cost £55
> It sounds like a possible buggy power transformer. . have you had any
problems ie: jumbled screen letters, jittery lights, or any red led's
stuck "on" from time to time? I would definitely try a re-cap on the
PSU first and go from there. I believe there was also someone here in
the group that knows where to get new replacement PSU's that will work
w/ EMAX1 and EMAXII.
> cheers, emulator_island
>
> --- On Tue, 2/24/09, nung242 <nung242@... > wrote:
>
> > From: nung242 <nung242@... >
> > Subject: Re: [emax] high whine in power supply
> > To: emax@yahoogroups. com
> > Date: Tuesday, February 24, 2009, 8:35 PM
> >
> >
> >
> >
> >
> >
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> > Its coming directly from the PSU.
> >
> >
> >
> > Jason V
> >
> >
> >
> > --- On Tue, 2/24/09, sm papke <mothrecords@
> > yahoo.com> wrote:
> >
> > From: sm papke <mothrecords@
> > yahoo.com>
> >
> > Subject: Re: [emax] high whine in power supply
> >
> > To: emax@yahoogroups.
> > com
> >
> > Date: Tuesday, February 24, 2009, 4:19 PM
> >
> >
> >
> > the whining sounds is audible directly from the PSU, or
> > only when the units outputs are in use? I would definitely
> > re-cap the PSU if it is still stock.
> >
> >
> >
> > cheers, emulator_island
> >
> >
> >
> > --- On Tue, 2/24/09, nung242 <nung242@yahoo. com>
> > wrote:
> >
> >
> >
> > > From: nung242 <nung242@yahoo. com>
> >
> >
> >
> > > Subject: Re: [emax] high whine in power supply
> >
> >
> >
> > > To: emax@yahoogroups. com
> >
> >
> >
> > > Date: Tuesday, February 24, 2009, 12:31 PM
> >
> >
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> > >
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> >
> > > It has the kit inside for the HD, but I
> > do
> >
> >
> >
> > > not have one hooked up yet. The only thing I have done
> > is
> >
> >
> >
> > > take and old internal 3.5 floppy drive and replace the
> > one
> >
> >
> >
> > > that was originaly there, but it was whining before I
> > did
> >
> >
> >
> > > that.
> >
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> > >
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> >
> > > Thanks!
> >
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> > >
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> > > Jason V
> >
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> > >
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> > >
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> > >
> >
> >
> >
> > > --- On Tue, 2/24/09, sm papke <mothrecords@
> >
> >
> >
> > > yahoo.com> wrote:
> >
> >
> >
> > >
> >
> >
> >
> > > From: sm papke <mothrecords@
> >
> >
> >
> > > yahoo.com>
> >
> >
> >
> > >
> >
> >
> >
> > > Subject: Re: [emax] high whine in power supply
> >
> >
> >
> > >
> >
> >
> >
> > > To: emax@yahoogroups.
> >
> >
> >
> > > com
> >
> >
> >
> > >
> >
> >
> >
> > > Date: Tuesday, February 24, 2009, 10:23 AM
> >
> >
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> > >
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> > >
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> > >
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> >
> > > hi, is there an HD installed on your EMAX II?
> >
> >
> >
> > >
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> > >
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> > >
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> > > emulator_island
> >
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> > >
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> > >
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> > >
> >
> >
> >
> > > --- On Tue, 2/24/09, nung242 <nung242@yahoo.
> > com>
> >
> >
> >
> > > wrote:
> >
> >
> >
> > >
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> > >
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> > >
> >
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> >
> > > > From: nung242 <nung242@yahoo. com>
> >
> >
> >
> > >
> >
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> > >
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> > >
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> >
> > > > Subject: [emax] high whine in power supply
> >
> >
> >
> > >
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> > >
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> > >
> >
> >
> >
> > > > To: emax@yahoogroups. com
> >
> >
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> > >
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> > >
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> > >
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> > > > Date: Tuesday, February 24, 2009, 10:18 AM
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> > >
> >
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> >
> > > > Hello,
> >
> >
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> > > > When I turn on my emax II keyboard - the power
> >
> >
> >
> > > supply
> >
> >
> >
> > >
> >
> >
> >
> > >
> >
> >
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> > >
> >
> >
> >
> > > > whines loudly for about 5 minutes before
> > quieting
> >
> >
> >
> > > down. Does
> >
> >
> >
> > >
> >
> >
> >
> > >
> >
> >
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> > >
> >
> >
> >
> > > > this mean the power supply is on the way out? If
> > so,
> >
> >
> >
> > > where
> >
> >
> >
> > >
> >
> >
> >
> > >
> >
> >
> >
> > >
> >
> >
> >
> > > > would I get a new one? Would it be cheaper to
> > have the
> >
> >
> >
> > > power
> >
> >
> >
> > >
> >
> >
> >
> > >
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> > >
> >
> >
> >
> > > > supply repaired?
> >
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> > >
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> >
> > > > Thanks for any help or suggestions!
> >
> >
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> > >
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> > > > Jason V
> >
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> > > > the band TV
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> > >
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> > > > http://www.youtube.
> >
> >
> >
> > >
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> > >
> >
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> > > > com/sexlustlies
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> > > > [Non-text portions of this message have been
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