K117sm5e8
5-106
9. If the gray bands get darker on one area in the middle (not the exact center), that is because the
LED Head Unit is seated skew.
In this case, first, remove the skew. Find a face of the pin (11) on the darker side only
so that
unevenness of the gray bands could disappear or change as follows.
Turn the pin (11) according to the NOTE column instruction on page 5-86.
Worse: try another direction. OK to proceed the next step.
Done: proper focus achieved OK to proceed the next step.
<Example: LED Head Unit from top>
This example shows that the skew is removed by turning the left pin clockwise in 240 degrees
to move the left side of the LED Head Unit backward.
As which direction (clockwise or counter clockwise, in other words, the LED Head Unit to
frontward or backward) to turn the pin may vary by the case, try both directions
.
Compare the results to find the better direction.
When you remove the skew, go to the next step.
NOTE
(1) The actual “original front face” may vary by the case.
(2) It is not always applied that the same face of the left / right pins comes to front.
For example, “-0.2mm” (yellow) on both sides would not stand for “completely no skew”.
Clockwise
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