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What would cause both Horizontal and Vertical Deflection to Stop Working?
Witchboard:
Still working on that G07 CAO board.
Ken Layton:
I believe the CAO accepts positive sync signals only.
As to no hor/vert deflection, you may have lost power to the integrated circuit or a coupling or filter cap was in backwards. Always remember that sometimes a brand new capacitor could be bad right out of the package.
Witchboard:
Positive sync only eh? I didn't know there was a difference. So, I'll need to find a game that outputs positive sync to get the monitor working.
dabone:
7404 Ic Sync inverter.
pin 1 on the 7404 - sync FROM game
pin 2 on the 7404 - sync TO the monitor
pin 7 on the 7404 - Ground
pin 14 on the 7404 - +5
Boom, negative sync input.
Later,
dabone
Witchboard:
--- Quote from: dabone on March 09, 2005, 09:36:13 pm ---Boom, negative sync input.
--- End quote ---
Do you mean, "BOOM, positive sync input?" I'll google the 7404 IC. Thanks for the heads up.