Barco (Older Analog Projectors)

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H Shift board

The H shift board controls the raster position of each CRT via the blue trimpots at the top edge of the board. The large yellow coils shown are the individual width coils for each tube and should only be adjusted with a non-metallic screwdriver. I file down a wooden chopstick if I’m on site somewhere and need to adjust those coils and don’t have my plastic screwdriver with me.

The nine trimpots on the above board on the top left are covered in the manual and adjust pincushion and trimpot. Three controls for each color.