> > > > I am measuring clocks on my Money Money pcb but I have a problem with the
> tms5200
> > > > clock.
> > > >
> > > > The frequency counter measure a clock of 565khz instead of 640khz as stated in
> > > mame.
> > > > The problem is that there isn't a resonator near the tms5200. The clock pin is
> > > > connected to some resistors, capacitors and transistors. it is possible also
> that
> > > the
> > > > trace goes to the 3.58mhz osc but I can't follow anymore the traces.
> > > >
> > > > I believe the clock is made on the pcb with discrete components or discrete
> > > > components are used as divisors
> > > > In this case, what value should be put in mame?
> > >
> > > 640khz. Try measuring the ROMCLK pin of the chip, it should measure 160khz (it is
> > the
> > > main clock / 4). trying to directly measure the clock at the OSC pin, given that
> > > money money uses the tms5200 in RC clock mode and not external clock mode, will
> > > always throw off the result, usually slowing down the clock speed significantly.
> > This
> > > is true for all chips which use RC clocks.
> >
> >
> >
> > The original message was from over two years ago... oh well, it'll help someone, I
> > guess...
> >
> > - Stiletto
>
> Indeed. I just watched kold666's youtube video (
> http://www.youtube.com/watch?v=cd9CIy6h8M4&fmt=18) of his money money pcb too,
> and I think 640khz may be too slow (or someone messed with the frequency pot on the
> pcb sometime since the factory.)
> The 'tromba' channel and the other correct analog sounds (currently incorrect in
> mame) can also be heard.
>
> LN
on the pcb there isn't a pot to adjust the frequency, it's fixed!
and yes, it's 160khz on romclk
and sorry for my late reply but I don't usually follow this board 
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