The older Motorola monitors had some upgrades, but sometimes parts might
have been subbed that were not exactly original. Also sometimes they had
mods to allow for non-standard sync rates...Wells Gardner had many mods,
and they tell me they have no idea of what went with which game. DOes
anyone live in Chicago and could wander over to the plant and grab the
files on the late 70's and early 80's variations of the 4900 series?
There must be some info there, the changes are significant as some WG
's won't lock on some old boards otherwise...
Buuuut...back to the vectorlist, perhaps this should continue on the
arcade list..
John :-#)#
Mitchell Rohde wrote:
>
> Guys-
>
> I'm currently engaged in fixing an old (raster) monitor (ok, ok, I know
> this is vectorlist, but...)... and it brought me to thinking. How
> often do you guys find in the monitors that the schematics have typos
> or have different component values than the unit you are servicing?
> Sometimes it's just a question of revision number, other times it
> seems like the company just didn't care about the docs...
>
> Any thoughts?
>
> Mitch
>
> ps- before you ask, I'm working on an XM501 display for a 1973 Atari
> Space Race...
-- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) mailto:jrr_at_flippers.com, web page http://www.flippers.com "Old pinballers never die, they just flip out."Received on Thu Feb 25 10:41:14 1999
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