The Yamaha AN1x Synthesizer mailing list

Hello Bulgarian friend !

>- DC jack sometimes just switches the power off- it could be expected since this is obvously an old and not very gently used board (it even has a crack on the rear panel) so it needs a change;
>
I think that the jack socket in the AN1X has a loose solder, because of 
the crack on the rear panel .Or maybe the socket itself is broken, but 
less probably . Get a soldering iron and fix it . Another possible cause 
is on the supply jack side because of the bend on the cable . Cut out ~ 
10cm of wire and fit a new male jack (the stock one is molded around the 
wire and not re-usable) , the "+" pole is on the center pin of the jack 
.Nothing too bad !

>- volume knob causes scratches sometimes, maybe just needs to be cleaned; one more thing: sometimes when i tweak the knobs changing some of the patches "edit" appears on the screan, but sometimes it doesn't. 
>could you explain me why?
>
In fact it is the same problem : with the volume pot it is audible 
(scratches and plops) , with the other pots the bad contact on the 
cursor causes the parameter value changes to be ignored by the \ufffdP . No 
change = no display !
Clean them all with any proper electronic cleaner , have (again) a look 
at all the solder joints of the pots....
If you open your synth, have a look at all the ribbon cables, connectors 
.... most of the troubles are related to these things with digital 
electronics (because the AN1X is mostly digital, despite its name !)
@+
J.F.

kalin_progg a \ufffdcrit :

>sorry for big delay! i promissed to write right after i get the an1x 
>and thanks to Jon,  Jeff and Sergiy (thanks again for the piece of 
>advice) now  i have second hand an1x with all the factory settings 
>restored.(...)
>




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