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In Reply to: RE: Zerostat posted by rick_m on October 15, 2016 at 15:07:02
Put the back of your hand to a cd in the winter when it's dry. If the hair stands up you have static. I use my Zero Stat on cd's.
bigshow
Follow Ups:
Isn't the CD holder grounded within the unit?
I believe that the laser diode in the OPU is grounded for protection before installation. This ground may defeated by breaking a solder bridge upon installation and which then allows for operation. I assume that there is accordingly some form of grounding path created thereon.
However the collimator lens assembly itself is decoupled from the laser and the rest of the OPU so as to be able to move and to change focus. I would imagine that due to its size, lightness and need for freedom of movment (in the vertical plane), grounding may be hard to achieve for this component which would leave it free to be attracted by static charges. Unlike the laser diode there would not be any risk of damage, however.
The CD disc itself is normally only held around the edge of the centre hole on a form of chuck which is, in turn, attached to the motor spindle. There may be additional clamping applied but whether any attention is paid to grounding I do not know.
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