Re: Sega G80 Vector issue "diverged Red/Blue"

From: Andrew Welburn <andy_at_andysarcade.net>
Date: Wed Aug 10 2011 - 03:43:30 EDT

Its a classic convergence issue, get the service manual and you could
proabbly bring it back inline by adjusting the rings, or at least get it
somewhat nearer (perfection is hard to obtain with vectors ;)

--
Andrew Welburn
http://www.andys-arcade.com
----- Original Message ----- 
From: "Zitt Zitterkopf" <zittware@hotmail.com>
To: <vectorlist@vectorlist.org>
Sent: Wednesday, August 10, 2011 6:58 AM
Subject: VECTOR: Sega G80 Vector issue "diverged Red/Blue"
I'm beginning to wrap up my Sega Star Trek Captain's Chair restoration; 
having put the machine together... I've noticed some vector issues:
I documented my new top high score to demostrate the problem in my 
restoration thread on KLOV:
http://forums.arcade-museum.com/showpost.php?p=1732912&postcount=148
The red and blue guns don't appear to line up on the score and credit 
vectors. In the overview map; the klingon ships appear mostly correct; but 
they do sometimes appear as diveraged guns depending on some game play 
parameter I can't really nail down.
I don't really think there a monitor issue; I'm guessing it's on the XY 
board in the card cage - given it was home to a solderbridge early in the 
debug; but not real sure where to begin looking.
Thoughts?      ---------------------------------------------------------------------------
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Received on Wed Aug 10 03:44:27 2011

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