Rasterlist Archives: Re: Re: Pole Position II Schematics Wanted

From: COLIN DAVIES <colin.w.davies_at_btopenworld.com>
Date: Tue Dec 05 2006 - 12:35:05 EST

Thanks, I'll check when I get home.

Don't the Namco PCB's have on board sound amplifiers ?

  Before I start fiddling with things too much, I want to check that the voltages are ok... the were 3 pins on the power connectors on each board... I get 0v in the middle, 5v on one side and about 1v on the other ( I think this should be 12v , but would like to find the schematics to chase it).

  From my limited knowledge on this, I think in addition to the rom swap, there may be some proms and an custom ic required too.. what about jumpers too ?

  Kind Regards,
  Colin

peter jones <highwayman2000@mail.ru> wrote:

-----Original Message-----
From: COLIN DAVIES
To: rasterlist@vectorlist.org
Date: Tue, 5 Dec 2006 17:11:34 +0000 (GMT)
Subject: RASTER: Pole Position II Schematics Wanted

>
> Hi Guys,
>
> I've been on the Vectorlist for a while, and thought I'd have a look over the fence :-)
>
> I've just aquired an Atari Ireland Pole Position II upright machine. As far as I know, it has a Namco boardset fitted (each of the pcb's has a separate power plug) and two AR2's which appear to provide +5v to each of the boards.

pp1 and pp2 use the same pcb, it's a romswap.
one of the ar2's is used for audio, you can fit a switcher for the power and keep one ar2 for the amp function if you want.
the only problems i'v had with them is a worn deadspot on the throttle-pot, and a fucked gearshift.
(not on the same machine)

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