yamaha keyboard

Archived from groups: rec.audio.tech (More info?)

"Patt" <pattj@shaw.ca> wrote in message
newsdNte.55299$El.37291@pd7tw1no...
> I have an older yamaha keyboard (PSS-680), that I need an ac adaptor for.
> It calls for a Yamaha pa-3, or pa-4. Does anybody know of an equivalent
> adaptor that would be similiar. I don`t know what the volts or mA are for
> it.

I think it's 12V DC at 1A, but that's only from memory unfortunately.
Doesn't it mention the input voltage next to the power socket though?

MrT.

Archived from groups: rec.audio.tech (More info?)

"DaveJ" <davej@nospampleze.co.uk> wrote in message
news99fs5$94i$1@news.e7even.com...
>
> "Patt" <pattj@shaw.ca> wrote in message
> newsdNte.55299$El.37291@pd7tw1no...
>> I have an older yamaha keyboard (PSS-680), that I need an ac adaptor
>> for.
>> It calls for a Yamaha pa-3, or pa-4. Does anybody know of an equivalent
>> adaptor that would be similiar. I don`t know what the volts or mA are for
>> it.
>> Patt.
>>
> My PA-4 adapter is 10.2 volt, 1 Amp - the manual (page 4) claims the DC IN
> can be 9-12 volt (9v seems reasonable as it can run off 6 x 1.5 volt
> batteries).
>
> At last - absolution for my keeping 'junk' habit..! Thanks.
>
> HTH.
>
>

Make sure you get the polarity round the right way. The Yamaha WILL burn out
an internal diode, or worse, if you don't. It should say which polarity the
centre pin is on the moulding next to the DC socket. I'm 99% sure it is
centre pin positive.


Gareth.