Blue spot on my monitor

CalifTom

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I need your help. When I turn my ms. pac-man off, it shows a blue spot in the middle of the screen. This dot fades after some time, but even when I unplug the machine it is still there. Is this normal or do I need to make some sort of adjustment? I could not get a good picture of it. It was to dim. Thanks for the help.
 
I've seen this before and it's okay.

But - if you have a G07 chassis in there (and you probably do), then you could check the wiring to the back of the focus and brightness pots. Sometimes they get brittle and are barely hanging on. When they break completely, it'll only show that blue dot when you turn it on, so having it come up when you power off may be a sign that it is getting loose.

Also, check to see if your DAG wire is connected to the neckboard properly. Your tube may be having problems bleeding the voltage in the tube off when you shut it off...
 
Also, check to see if your DAG wire is connected to the neckboard properly. Your tube may be having problems bleeding the voltage in the tube off when you shut it off...

I just got done doing a capcit on the monitor. Could you explain what the DAG is? Thanks.
 
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