Wells 19" K7901 - No Red Color

john2654

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I have a Wells Gardner 19K7901 that displays no RED color in my Tetris. I tried a different monitor and it works perfectly so it is definitely the monitor. I tried re soldering the video input posts, swapping some of the "red" parts on the neckboard...with no luck. I tried messing with the red pots on the neckboard and only if I crank the red cutoff all the way up do I see a tiny hint of red on the screen. Any thoughts?
 
1) Can you swap the chassis to another tube for testing? That will tell you if it's the chassis or the tube (needing rejuv).

2) Has this monitor been capped?
 
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