Rasterlist Archives: RE: How does this sound as a group project?

From: Paul Sommers <Paul.Sommers_at_cwo.com.au>
Date: Thu May 18 2000 - 19:07:06 EDT

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<TITLE>RE: RASTER: How does this sound as a group project??? (Longish)</TITLE>
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Mike Ranger has sent me a big long post of the various sections and troubleshooting he does (and it works for the Williams boards he fixes).

I'm going to try and make a start on the weekend and when I have a format for each section I'll post the section to the list for feedback and additional information (unless the majority of people here don't want me to - LMK because the initial response was much lower than I expected - maybe it belongs on RGVAC).

I have a couple of broken boards boards lined up to test the information on. Kind of Troubleshooting for Dummies.

Thanks for the encouragement.

Cheers
 Paul

 
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----------
 From:   saint
 Reply To:       rasterlist@synthcom.com
 Sent:   Friday, 19 May 2000 08:20
 To:     'rasterlist@synthcom.com'
 Subject:        Re: RASTER: How does this sound as a group project??? (Longish)

*please* do this :)  I'd absolutely love to see this in place.  I know
 it's not needed but I have web space I could put it up on if someone put
 it together...

--- saint
     Build Your Own Arcade Controls FAQ
     http://www.arcadecontrols.speedhost.com

On Wed, 17 May 2000, Paul Sommers wrote:

> Gang,
 > 
 > Last night someone dropped off a Stargate boardset for me to have a go a
 > repairing. As I don't really know what I'm doing I always set their
 > expectations that they may get it back still broken.
 > 
 > I sat down with the info from Dave Langley's website (in particular The
 > Ranger Chronicles) and within an hour had fixed the boardset.
 > 
 > That type of repair makes my week - especially when you consider I knew
 > nothing about electronics when I started this just over 2 years ago.
 > 
 > Feeling pretty good I turned back to my Berzerk, and now the moving garbage
 > I had when I powered down last night has gone back to static garbage.
 > 
 > I poked and prodded for a while using the Duck Hunting method (shoot at
 > anything that moves - you're bound to hit something) and realised quickly I
 > was completely lost.
 > 
 > Took a break and it really hit me what my particular problem was - and maybe
 > other people are experiencing this, although I realise there is an awful
 > high level of expertise on this list.
 > 
 > While the books I read can teach me what a NAND gate is, and Kev has written
 > an excellent Logic Probe FAQ, and there is a ton of help out there (you guys
 > have no idea how many games you have brought back to life in Australia)...
 > 
 > I don't have a troubleshooting methodology.
 > 
 > Or at least it stops at a certain point (check voltages & connections,
 > reseat chips, verify roms).
 > 
 > I thought it might be a good resource (and I volunteer to collate and put it
 > all together as I can offer little technical skills and would benefit
 > greatly) if we all contribute to a methodology for newbies or the
 > inexperienced.
 > 
 > So after the obvious above - where do you go next? The CPU? What should you
 > be looking for? Should you see different signals on different CPU's?
 > 
 > This should be very generic but we can concentrate on maybe Z80, 6502,
 > 6809...
 > 
 > Then maybe we could move onto the ROMS - how to check the roms are
 > functioning correctly...
 > 
 > Or maybe someone has this in a book specific to videogame troubleshooting
 > and we don't do this at all. Or maybe we should move this to RGVAC?
 > 
 > Your thoughts?
 > 
 > Cheers
 > Paul
 > 
 > 
 >

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Received on Thu May 18 19:33:55 2000

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RE: How does this sound as a group project??? (Longish)