Right !
Poor (or failed) voltage regulation or filtering can be the cause of
these issues. If i remember a voltage regulation is implemented inside
the AN1x, at least for the 5V for digital ICs.
Cheers.
J.F.
Bob S. a écrit :
>
> The switchable voltage supplies don't always provide the full rated
> current at the highest voltage output, it depends on how they are
> spec'd...
>
> If you can measure the supply voltage while operating under load, you
> may see a reduced or modulated voltage on the power supply when there
> is more current needed by the device (AN1x) than can be provided by
> the supply.
>
> Bob
> El Segundo, CA
>
> ----- Original Message -----
> From: Oliver Fairhall
> To: AN1x-list@yahoogroups.com <mailto:AN1x-list%40yahoogroups.com>
> Sent: Thursday, October 14, 2010 23:45
> Subject: Re: [AN1x] Re: Sound problems with AN1x
>
> Thanks for the info.
>
> I'm guessing the one you bought from Maplin, doesn't really perform as
> specified.
>
> On 14/10/10 18:54, arthtrin wrote:
> >
> > Its been a couple of years since I started this post. I think I know
> what the culprit of this problem with the sounds on my AN1x were. The
> culprit was the power supply. Just a few days ago I resurrected my
> AN1x from the attic but lost the power supply. I then found a power
> supply which was 12v 600mA from a hard drive I have and it worked like
> a charm on my AN1x with no problems with sounds going weird or fading
> etc. The only problem was that I had to change the internal battery.
> However I was a bit worried using the power supply as it is 600mA
> instead of the required 700mA so I went to my local Maplin store and
> bought a power supply with volts selector. I then adjusted the volts
> selector to 12V (which according to the box has 1.4amp) and connected
> it to my AN1x. After a while of it being connected I started having
> the problems with the sounds going all weird again. I then
> disconnected the power supply and reconnected my other power supply
> and it was back working normal agai
> n.
> >
> > I am convinced that the power supply I used originally on my AN1x
> and the new one I bought from Maplin was and is the problem.
> >
> > Art
> >
> >
> >
> > --- In AN1x-list@yahoogroups.com
> <mailto:AN1x-list%40yahoogroups.com>, Jeff<jf.serviere@...> wrote:
> >>
> >> It looks more likely like a ribbon controller problem : play, hit it
> >> gently with your fingertip and listen...maybe you'll have to open your
> >> synth , clean and plug firmly the ribbon controller connector to
> fix it.
> >> The connectors and IC sockets are often the hidden "Achille's heel" of
> >> electronic devices.
> >> For the supply unit : these wallwarts are often crap pieces of
> >> electronics, but mine works perfectly (at the moment, maybe
> >> tomorrow.??). The Yamaha unit is a bit expensive for what it is,
> but you
> >> can try any similar supply rated at 12V - 700 mA, "+" at the center of
> >> the connector. Don't try higher voltages, but a 1 amp supply will work
> >> even better.
> >> Cheers.
> >> J.F.
> >>
> >> jammie a écrit :
> >>>
> >>>
> >>> is your psu large enough as its getting hotter it sounds like the
> >>> voltage is dropping i had this problem with a faulty psu it would
> >>> start after 5 minutes and the sounds would start to get distorted
> >>>
> >>> psu are the biggest problem with any electronic equipment and
> >>> wallwarts are the worst as everything is compacted into a plug size
> >>> package
> >>>
> >>> get another psu and try that first before suspecting the synth
> >>> ----- Original Message -----
> >>> From: jondl_2000
> >>> To: AN1x-list@yahoogroups.com
> <mailto:AN1x-list%40yahoogroups.com><mailto:AN1x-list%40yahoogroups.com>
> >>> Sent: Sunday, September 20, 2009 6:10 AM
> >>> Subject: [AN1x] Re: Sound problems with AN1x
> >>>
> >>> --- In AN1x-list@yahoogroups.com
> <mailto:AN1x-list%40yahoogroups.com><mailto:AN1x-list%40yahoogroups.com>,
> >>> "palemilk"<palemilk@> wrote:
> >>>>
> >>>> --- In AN1x-list@yahoogroups.com <mailto:AN1x-list%40yahoogroups.com>
> >>> <mailto:AN1x-list%40yahoogroups.com>, "Arthur Alexander Crichton"
> >>> <ac010b4919@> wrote:
> >>>>>
> >>>>> Hi,
> >>>>>
> >>>>> I have a problem with my Yamaha AN1x.
> >>>>>
> >>>>> When I select some pad sounds on my AN1x the sounds are bright and
> >>>>> after about 3 seconds the sound just cuts off to a duller sound
> which
> >>>>> is very low in volume. When I press the keys again all I get is a
> >>>>> faint dull sound. I try to play the keys harder but I still get this
> >>>>> sound. Before I had this problem, those paticular patches used to
> >>>>> sound bright and full. Also, I have noticed some sounds sound
> thinner
> >>>>> than what they used to and that sounds that rely on arpeggio or lfo
> >>>>> sound muddy and strange.
> >>>>>
> >>>>> What is wrong with my beloved AN1X?
> >>>>>
> >>>>> I have tried cleaning the control knobs with switch cleaner but I
> >>>>> still get the same problem. BTW the rom version on my AN1x is v1.02
> >>>>>
> >>>>> Please help.
> >>>>>
> >>>>>
> >>>>> Arthur
> >>>>>
> >>>>
> >>>> I realize this thread/topic is over a year old, but I recently got
> >>> an AN1x again (had one a few years ago) and was experiencing this
> >>> exact problem as stated in the original topic. Some patches sound
> >>> normal for awhile and then suddenly sound thinner. After messing
> >>> around with it for a bit trying to isolate the cause I'm 99% convinced
> >>> this is a ribbon controller issue (specifically the Z axis). Applying
> >>> pressure or tapping the ribbon cures the problem, but it can reoccur
> >>> again after powering down and powering on.
> >>>>
> >>>> I plan on opening up the synth to check for a loose ribbon connector
> >>> and to clean some contacts. Just wanted to add a reply in case anyone
> >>> else searches this topic (like I just did) and is looking for possible
> >>> answers.
> >>>>
> >>>> BTW, the AN1x I just picked up is a mint condition unit. First owner
> >>> used it once or twice and then kept it in a closet for the past 10
> >>> years. Everything was in perfect like new condition...synth, power
> >>> supply, manuals, box. Software OS version is v1.03.
> >>>>
> >>>> Cheers,
> >>>> -Todd
> >>>>
> >>>
> >>> Gosh, we had threads on this awhile ago... the Ribbon Controller
> >>> always seemed a bit unpredictable.
> >>>
> >>> I think the most common issue was was being able to tap the ribbon
> >>> would cause it to 'hold' at that value rather than jump back to the
> >>> default value and for others it would not work as advertised. It was
> >>> an intermittent thing, and while some of us could reproduce the issue
> >>> it was never under the same circumstances as another user, i.e. using
> >>> different voices. And it seem to clear after a power on/off cycle.
> >>>
> >>> Sound likes you've rediscovered this issue.
> >>>
> >>> Jon
> >>>
> >>> ----------------------------------------------------------
> >>>
> >>> No virus found in this incoming message.
> >>> Checked by AVG - www.avg.com
> >>> Version: 8.5.409 / Virus Database: 270.13.107/2382 - Release Date:
> >>> 09/19/09 06:03:00
> >>>
> >>> [Non-text portions of this message have been removed]
> >>>
> >>>
> >>
> >
> >
> >
> >
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