Memory Map Needed, Wms Pinball System 9

<x-flowed>I Googled for this but came up with zip. I'm looking for the system 9
memory map so I can build a test script for my dead Comet pinball. Checksums
would be nice to have too. Can someone help?

Mark Hooks

----- Original Message -----
From: "Andy Welburn" <warlords@punkass.com>
To: "'Technical Tools Mail List'" <techtoolslist@flippers.com>
Sent: Friday, April 15, 2005 6:14 PM
Subject: RE: [Techtoolslist] Space Invaders

> Phil.
>
> This is your problem, change the resistors to 150ohm, I bet you it will
> work, I've had this about 5 times except once, on taito L-shape SI pcbs.
>
> Andy Welburn
> www.andys-arcade.com
>
>> -----Original Message-----
>> From: techtoolslist-bounces@flippers.com [mailto:techtoolslist-
>> bounces@flippers.com] On Behalf Of Phil Morris
>> Sent: 15 April 2005 22:35
>> To: Technical Tools Mail List
>> Subject: Re: [Techtoolslist] Space Invaders
>>
>>
>>
>> >Did you check the power levels with the Fluke pod in? Seems like I
> heard
>> >that it draws more power than the CPU. Also, maybe you have a weak
>> component
>> >in the CPU circuit, since adding the pod changes trace lengths, power
>> >loading, etc. does it not?
>>
>> Well, some success - seems that lowering the +5VDC line to +4.5VDC
> gets
>> one
>> boardset to run via the Fluke - the other one still won't play ball
> though.
>>
>> I'm wondering if it's something to do with the clock ..... the two
>> resistors that interface with the 7404 at 7B and the crystal are,
>> according
>> to the schematics, supposed to be 330 ohms. However, on the boardset
> that
>> WILL work via the Fluke they are both 150 ohms, yet on the boardset
> that
>> won't work via the Fluke they are 330 ohms and 1K
>>
>> I don't feel like experimenting with swapping them out right now, but
>> maybe
>> this is the cause.
>>
>>
>>
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>
>
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</x-flowed>
Received on Sat Apr 16 10:20:15 2005