wells gardner d9400 dark screen help

sirgubster9

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Got this monitor in my fast and furious drift. Vga flat i believe it's a d9400. I'm curious if there are any other dials or adjustments I can do to get it brighter. I tried the lower knob on the flyback below the focus and then I also put contrast and brightness all the way up using the remote board. Anything else I can do? I recently had the chassis fixed and the guy said he had a great picture on it. I'm guessing it's my tube but I wanted to make sure I tried everything as far as adjusting first. I didn't find anything in manual but I don't exactly know how to read those.
 

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Given the rebuild and burn on the tube, i'd say the tube is tired. Do you have a tester/rejuvenatior? Or if the tube on the right is the same model you can swap it over.
 
Given the rebuild and burn on the tube, i'd say the tube is tired. Do you have a tester/rejuvenatior? Or if the tube on the right is the same model you can swap it over.
that was my thought as well, and Ya I was thinking about making the swap to see. just thought I would check in here first to see if there was some other secret knob I was missing.
 
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