MC3470
Tony Duell
ard at p850ug1.demon.co.uk
Mon Feb 4 16:59:33 CST 2008
>
> On 03/02/2008 23:59, Tony Duell wrote:
>
> > Do you mean that? I thought the output (pin 10) pulse width was set byu
> > the RC network on pins 8 and 9. Do you really mean that the offset adjust
> > preset is used to get all the pulses equally spaced, rather than occuring
> > in pairs (which is the most likely result of an imbalance in the cicuit,
> > I think).
> >
> > Or do you adjust for 50% duty cycle at some other point?
>
> You adjust the offset adjust preset for a 50% duty cycle output,
> according to the Sony manual.
Do I conclude that you've never actually done it? Neither have I, of
course. I think I am going to have to experiment with a 'spare' drive PCB
-- I'm sure I can find a drive with ad heads or something. It'll not be
soon (too many other things to do, but I'll let you know how I get on.
-tony
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