G07 Brightness not sticking?

jonathan1138

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Hi - on a Crystal Castles - adjust brightness, monitor looks good. In about 10 or so cycles (game on / off = cycle), i need to readjust the brightness again, as it seems to be too dark.


I haven't confirmed yet if the brightness knob is moving on me, but i doubt that - wondering if this is a known issue / where else is suggested to check?
 
Check solder joints. Check your B+ after allowing it to run for 20 minutes. Check your B+ when the brightness seems low.


when you're adjusting the brightness, how long do you let the machine run before doing so? It needs to warm to proper operating temperature.
 
and if regulation is solid then the proble should be with your fucus assembly or intermitant neckboard connections to the crt pin sockets or neckboard ground to the rest of chassis common ground.
 
Thanks guys - i will focus on those three areas first - monitor B+, check the neck board and pins, housing for those pots, and cold joints (again).

After i posted i turned the game on, and it was ok - no need to readjust, so it seems stable now. Of course the monitor was recently used and warmed up....

So, Later today i will see what happens - i suspect that now that the monitor is "cold" it will start up dark, and may or may not look good after having it on for a few minutes. I could even be leaning toward a warmup issue, BUT i can't conclude that since brightness adjustment solves it.....
 
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