Asteroids XY Problem

bridgeman274

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Picked up an Asteroids that was playing blind. it has the wells Gardner version monitor. Replaced the diode in the anode line going from HV to he tube. Now I am able to get a picture however I have two problems.
1. the spot killer LED stays lit.
2. I have a bright dot in center of tube when game on. I am able to adjust contrast and brightness to get it nearly gone, but it is there faintly. To get it completely gone I have to adjust down so far that all images disappear.

I am sure the spot killer is related and thought I would check to see if anyone else has experienced this. Thanks in advance.
Patrick
 
Google "black and white vector monitor FAQ" , and read that. It tells how everything works, and if you're having a problem, what's wrong. It'll tell you exactly what area to look at.

I'd start with a capkit, though... they're real easy on those vectors, I think there's about 10 caps or something like that in the whole monitor that get replaced.
 
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