The Yamaha AN1x Synthesizer mailing list

Sorry...it wasn't me that wrote that...I suggested blowing out the An1X and checking connectors and using freeze spray to see if the heat problem could be localized.

I kinda wish people that posted with a problem and get many responses would at least post back with results (if any)....but that's the way it goes I guess.

Jim

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

From: <arnaldo.ortega@...>
To: <AN1x-list@yahoogroups.com>
Sent: Monday, December 16, 2002 4:11 PM
Subject: Re: SV: [AN1x] AN1x Continually Rebooting - Heat Problem?


> --- In AN1x-list@yahoogroups.com, "James Acker" <jacker@o...> wrote:
> > > What happens is that after a short while of being on, it will 
> > > itself, and then more-or-less continually reboot itself (between 
> > > couple of minutes and almost as soon as it has booted up).  If I 
> 
> Check the power supply. First, if you're not using a model reffered 
> in the manual do it or, at least, be sure to buy a good PS with 20% 
> excess current.
> 
> Most probably the heating problem is occurring in the PS. Some 
> component gets hot, the voltage or current drops down and AN1x 
> reboots. I got this exactly same rebooting behaviour with my Novation 
> Nova and the PS was the problem. Just bougth a new one and the blue 
> beast is back. ;^)
> 
> 
> 
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>

Monday, December 16, 2002, 14:52:45, James Acker wrote:

JA> I kinda wish people that posted with a problem and get many
JA> responses would at least post back with results (if any)....but
JA> that's the way it goes I guess.

Hi everyone,

Thanks for your help so far.  I've been really busy in the last few
days, so haven't had any time to open up the AN1x and see if there's a
lot of dust inside.  I might get time this week, but I'm doing some
freelance work at the moment, and it's taking up a lot of time (and my
girlfriend is taking up the rest of it)!

I have (and have always used) the standard power supply that came with
my AN1x when I bought it.

I don't have the necessary equipment to test the power supply here, so
I'll have to wait until I go home for christmas (my dad has some testing
equipment that I can probably use).

I'm still fairly sure it's a heat-related problem (just because of the
way it takes time before the first reboot happens, but then reboots
continually until I turn it off for half an hour or so).  This still
seems (to me) that it's a heat related problem, otherwise why does the
AN1x not reboot until it has been switched on for a little while, and
why does it continually reboot until it is switched off?

Actually, I just remembered that before the rebooting problem happened,
the first thing I noticed wrong was that the sound from the right
channel seemed to have gone completely.  Further checking revealed that
it was there, but very faintly and distorted.  I thought it might be the
audio cable, so I tried everything I could think of to check that
(different cable, different mixer channel, etc).  The sound was fine
from the headphone jack, but was not working properly from the main
outputs. Anyway, a factory reset seemed to sort things out (but maybe it
was because I switched it off for a while too?) so I didn't worry about
it any more.  This was just a few days before the rebooting started, and
I had almost forgotten about it.

Sorry I didn't reply sooner - I've just been trying to find enough time
to open up the AN1x, but it never came about.  I'll get back to you as
soon as I manage to solve the problem (or get stuck again)!

Cheers for your help so far, and if I do end up having to put a heatsink
on the AN1x, I'll document it online somewhere.

~Dave

-- 

Dave Silvester
Music Technology Junkie
Web: http://www.mu-sly.co.uk/
Email: sly at mu hyphen sly dot co dot uk
ICQ: 165159988

On Mon, 16 Dec 2002 19:21:45 +0000 Dave Silvester wrote:

> Actually, I just remembered that before the rebooting problem happened,
> the first thing I noticed wrong was that the sound from the right
> channel seemed to have gone completely.  Further checking revealed that
> it was there, but very faintly and distorted.  I thought it might be the
> audio cable, so I tried everything I could think of to check that
> (different cable, different mixer channel, etc).  The sound was fine
> from the headphone jack, but was not working properly from the main
> outputs. Anyway, a factory reset seemed to sort things out (but maybe it
> was because I switched it off for a while too?) so I didn't worry about
> it any more.  This was just a few days before the rebooting started, and
> I had almost forgotten about it.

I've had the thing of the right audio channel going as well. For me, a
full factory reset worked (and got rid of all my patches, that wouldn't
upload to my computer anymore). Mine didn't reboot, though, but it did do 
the crackling. Turning it off and on a few times did the trick, until
things got too bad and I had to do the factory reset. So it could be that 
the symptoms you describe are two different problems, although I can't
tell for sure.

- Peter
-- 

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