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5.1. Handling of MD Unit (optical pickup)
1. Do not subject the MD unit (optical pickup) to static electricity as
it is extremely sensitive to electrical shock.
2. The short land between the No. 25 (LD-GND) and No. 24 (LD) pins
on the flexible board is shorted with a solder build-up to prevent
damage to the laser diode. (As shown in
To connect to the PC board, be sure to open by removing the
solder build-up, and finish the work quickly.
3. Take care not to apply excessive stress to the flexible board (FFC).
4. Do not turn the variable resistor (laser power adjustment). It has
already been adjusted.
5.2. Grounding for electrostatic breakdown prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity
from your body. (As shown in
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where
the optical pickup is placed, and ground the sheet.
Caution:
The static electricity of your clothes will not be grounded through
the wrist strap. So, take care not to let your clothes touch the
traverse deck (optical pickup).
Fig.
Fig. 1
Fig.
2.)
Fig. 2
1.)
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