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MediaLas CatSafe Scan Fail Detection Board

Pinout for the MediaLas CatSafe scan fail detection board. This is not an official MediaLas document, for the latest version, contact info@medialas.com

Tips and Hints

1/ make all connections as shown.  Adjust feedback trimmer [FBX and FBY] to the same level as the computer input signal.

2/  Connect S1 to the blanking signal coming from the computer.

3/  Connect S2 to the blanking input of the PCAOM.  Under safe conditions, the signal from S1 is passed directly out to S2.  When a scan failure is detected, this connection is broken blanking the beam and the LED comes on.

4/  The safe scanning window is set by default [with trimmers Y1 and Y2, X1 and X2] to fully open at the factory.  Using a full screen grid, adjust the trimmers to provide the desired windowing of the safe area.

5/  Project a small horizontal line from the computer at an unsafe size.

6/  Adjust the hysterisis control until the line disappears.  Increase the size of the line and it should reappear.

7/  For maximum safety, the +30, Ground and -30 should be connected to the power supply points at the scan amps.

NOTE: Inputs should not be inverted against one another [either both X and Y must be set in normal or inverted mode with the jumpers].

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