Power ON with programmer or USB serial if possible. If necessary power with AC using extreme caution.
If display text is dim or not present adjust LED contrast (VR-1) located on the right side of the Display Module.
When adjusting, be gentle. Do not force past the stop in either direction. If forced past the stop, the part will no longer function.
Secure the enclosure lid. Tighten the screws slowly alternating across and top, middle and bottom.
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