Panasonic DVD-LS92P, Руководство по обслуживанию

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8 HANDLING PRECAUTIONS FOR TRAVERSE DECK
The laser diode in the optical pickup may break down due to
potential difference caused by static electricity of clothes or
human body.
So be careful of electrostatic break down during repair of the
optical pickup.
8.1. Handling of optical pickup
1. Do not subject the optical pickup to static electricity as it is
extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an antistatic
shorting pin is inserted into the flexible board (FPC
Board).
When removing or connecting the short pin, finish the job
in as short times as possible.
3. Be careful not to apply excessive stress to the flexible
board (FPC Board).
4. Do not turn the variable resistor (Laser power adjust-
ment).
It has already been adjusted.
8.2. Grounding for electrostatic breakdown prevention
1. Human body grounding
Use the antistatic wrist strap to discharge the static elec-
tricity from your body.
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 optical pickup.