Re: TI-H: TI-85 Schematic


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Re: TI-H: TI-85 Schematic




get schematics


Richard Piotter wrote:
> 
> Does anyone realize that Mel Tsai is working on mappin the schematic of
> the TI-85??? It sounds like he's quitting because no one is asking for
> it, but did anyone even know about it? I sure as hell would like to have
> a look at the schematic. There may not be that much use for it, but it
> would make many tasks easy, such as replacing the Resistor/Capacitor
> circuit with a REAL quartz crystal Occilator and running the calc at
> high, accurate frequencys. You could probably EMULATE RS-232 right from
> the link port with a crystal! Also, it might be possible to improve the
> link circutry for higher speeds. ROM upgrades may actualy be a
> possibility (doubt it though due to dificulty). Just imagine! He said
> once that he had much of it done. I've mapped circuit boards before, but
> mapping something as small as a TI-85 is hell. Even if he isn't done, he
> could atleast give out the work he does have instead of making us do it
> all over again if we ever need it. If you want to see the TI-85
> Schematic, LET HIM KNOW!!! I sure as hell want to see it. If anyone else
> is interested, then let him know that there is _someone_ other than me,
> who "gives a Rat's *ss about it," to quote him.
> 
> If no one cares, then I'll drop it, but imagine the hardware that could
> be done on it then!
> 
> Put "TI-85 schematic" in the subject line so he sees it. He isn't on the
> list anymore, so if you e-mail him, use his address. I forgot what it
> was, but I'll also forward them if they are on the list or sent to me.
> 
> Richard Piotter
> richfiles1@hotmail.com
> 
> ______________________________________________________
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