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I am really satisfied. It was ceap, easy and quick. Te owner manual is a full service book. I got what I expected. Thx
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The service was good but it just a little late for the download. It seems that it needs to clear the payment but the payment was settled by paypal. As far as my concern, it should be able to download after the confirmation of sold.
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Great quality manual, fast service, excellent seller... Thanks !!!
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Great manual and fast service. Download was possible after a few hours.
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thanks a lot.
without the service manual my handycam was going to the trash.
good job, go on.
bye
DVD-Series
2. How to Make FES (Focus Error Signal)1· · · Hologram Foucault Method
Note: The following PD form is slightly different from the actual one. (image only)
(At the time of just focus)
(Close to the disc)
(Far from the disc)
C B A
D + � No error + � + + � �
Actual form has I/V amplifiers here
q
From the deviation of focus, the light shown above (black part) comes back on PD. By receiving the output through a differential amplifier, DC voltage, which responded to defocusing, is output.
3. How to Make Thread Error Signal
When thread does not move..... OL
Bump
PU
Take out the low frequency component for tracking error signals. Tracking Error Signal _ LPF _ Thread Error Signal With this, move the thread to make OL stay around the free neutral point.
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