Static Electricity Protection Measures; Ground For Electrostatic Breakdown Prevention - Panasonic DMP-BD45EB Service Manual

2.5.

Static Electricity Protection Measures

• The laser diode in the traverse unit (optical pick-up) may break down due to potential difference caused by static electricity of
clothes or human body.
So, be careful of electrostatic breakdown during repair of the traverse unit (optical pick-up).
2.6.

Ground for electrostatic breakdown prevention

• As for parts that use optical pick-up (laser diode), the optical pick-up is destroyed by the static electricity of the working environ-
ment.
Repair in the working environment that is grounded.
2.6.1. Work table grounding
• Put a conductive material (sheet) or steel sheet on the area where the traverse unit (optical pick-up) is placed, and ground the
sheet.
2.6.2. Human body grounding
• Use the anti-static wrist strap to discharge the static electricity from your body.
2.6.3. When exchange the BDP/Digital P.C.B. Module
• Do not remove the FFC while replacing the BDP/Digital P.C.B.Modile.
Keep the BDP Drive and the Digital P.C.B. connecting with it.
After repaired, keep the BDP/Digital Module connected during the process of return which is replaced.
The FFC should be returned together and not removed.
2.6.4. When exchange the BDP Drive
• Before remove the ESD prevention bag, make sure to use the anti-static wrist strap to discharge the static electricity when
replace the BDP Drive.
Note:
The ESD prevention bag is used to replace the original short-circuit point.
It can be removed while placing the BDP Drive.
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