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8) Upper portion Pin-cushion adjustment
This adjustment is to bent the mirror and make the adjustment, do not over do it.
This adjustment is easy to do while cube is not assembled to wall but even assembled, it is possible
to perform removing the screen of the cube, attached on it.
Important Notice:
Do not exceed the adjustment too much, when mechanism comes to an end of its adjustment area,
there is no stopper mechanism provided and further forcing to do so will make fatal damage to the
mechanism.
These mechanical adjustments are important to display all the light coming out from engine to
the full screen. If this mechanism adjustment is not good, picture may not appear in full screen
however by electronic position and capture may possible to display.
Still, the 1st adjustment to obtain the full image is not an electronics but mechanism.
After performing all the mechanical adjustments, then electronic adjustment could be started.
Here is the summary of the adjustments.
1. Mechanical position adjustment by internal or external flat -field picture. Before this adjustment,
it is better to reset all the electronic position adjustments at the center/reset value.
2. Electronic Picture Position adjustment by external signal, there may be a little differences between
internal and external signal positions so that the signal which is generated from the PC which will
be used, is the best to supply.
3. After the position adjustments, then, color balance adjustment would be performed.
DMD drive condition can be changed by “Cutoff” and “Drive”. These adjustments could be
Done by internal test signal.
Then, “Offset” and “Gain” are provided to compensate the difference of signal level from PC.