The Yamaha AN1x Synthesizer mailing list

All good advice :)
--- In AN1x-list@yahoogroups.com, Jeff <jf.serviere@...> wrote:
>
> ed.beer a écrit :
> >
> > How are the ROMS mounted ? Is it a solder job or clip in ?
> >
> If i remember well the EPROM IC (only one piece) is simply plugged in a 
> standard IC socket. Not the "zero insertion force" type with a clip but 
> a standard socket... Of course you don't need any solder. Just remove 
> gently the old EPROM using a little screwdriver as a lever on both ends 
> of the IC, take the new one and put it firmly at the same place.
> However, be careful :
> - of the mark on the IC plastic case showing the nr 1 pin . "Good" 
> sockets wear the same kind of mark or dot one one end, so take your time 
> and look carefully at the initial position. If it's in a wrong position 
> it does not work, but normally it does no harm to the EEPROM (supply and 
> input - output voltages are equal on most logic ICs). My advice : you 
> better do it right first..
> - to put all the (40, if i remember well) pins in the holes of the 
> socket, push on both ends of the IC : don't miss a row of pins, don't 
> bend them inside or outside the socket and so on.... A little useful 
> trick : take the IC by both ends and bend (yes..) a little the pins 
> against some hard surface to get a 90° angle between the pins and the 
> case, the mounting will be easier.
> - of ESD (electro static discharge) if you work in a cold and dry 
> atmosphere wearing nylon, Polartec or other synthetic clothes. This is 
> one of the terrors of CMos ICs...
> 
> Cheers.
> J.F.
> 
> >
> > --- In AN1x-list@yahoogroups.com <mailto:AN1x-list%40yahoogroups.com>, 
> > "millsmike36" <djmikemills@> wrote:
> > >
> > > It solved my problem straight away and its not that difficult to do...
> > >
> > > took me longer to unscrew the screw ont he case than the upgrade
> > >
> > > --- In AN1x-list@yahoogroups.com 
> > <mailto:AN1x-list%40yahoogroups.com>, Peter Korsten <peter@> wrote:
> > > >
> > > > Op 10-1-2011 8:24, Uwe schreef:
> > > >
> > > > > My blip problem did not solve yet, but I found out, that it only 
> > appears, when a sound is selected, that uses both scenes. As far as 
> > only one scene is active, my AN1X behaves quite well.
> > > > >
> > > > > Any suggestions yet?
> > > >
> > > > Your AN1x is not going to die. This is a well-known issue, that 
> > can be
> > > > resolved by installing an OS update. But this involves swapping 
> > chips,
> > > > so it's perhaps not for everybody.
> > > >
> > > > - Peter
> > > >
> > >
> >
> >
>