andrewb
Well-known member
Any significance to the LED on the deflection board blinking? When it blinks there's a little bit of a buzz or a hum sound and the image blips out on the screen.
That's the spot killer. It's a circuit that blanks the beam when there is no XY signal coming from the game board, so the monitor does not burn a hole in the center of the tube.
Normally the LED turns OFF when there is good XY signal coming from the game board. It is flashing on because the game board is resetting, or otherwise cutting out, and the XY signals aren't being sent to the monitor.
Basically, you have game board issues. If you want to send it in for repair, PM me.
