Wells Gardner K7197 white spot on switching off

xrodney

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hi, I installed a refurbished K7100 board in my factory mortal kombat 2 arcade monitor, and on switching off, there is a big white spot that fades after a few seconds. what can be the fault? i attached a linked on you tube, and i appreciate any help.

http://www.youtube.com/watch?v=Wto2MkuFnTY
 
also, at the corners, it looses focus and the test grid does not remain a straight line in the corners, and colours get spit
 
The dot is normal. It's the caps discharging their load AFAIK. Since the yoke isn't drawing the electron beams anymore, it's focused right in the middle.
 
Make sure that the wire connecting the DAG to the neckboard is on.

The DAG is the spring that's wrapped around the underside of the tube....
 
The spot isn't a fault.

The other thing is a convergence issue. I described some things to do about it on your BYOAC thread.
 
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