Handling Precautions For Traverse Deck - Panasonic SL-SW947P Manual

3. Handling Precautions for Traverse Deck

The laser diode in the traverse deck (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 deck (optical pick-up).
3.1. Handling of traverse deck (optical pick-up)
1. Do not subject the optical pick-up to static electricity as it is
extremely sensitive to electrical shock.
2. To protect the laser diode against electrostatic breakdown, be
sure that the short land of the flexible board (FFC board) should
be short-circuit by solder before pulling out the FFC. Then
inserting a short pin or similar object into the tipoftheflexible
board. / (Refer to
3. Take care not to apply excessive stress to the flexible board (FFC
board).
4. Do not turn the variable resistor (laser power adjustment). It has
already been adjusted. (Refer to
3.2. Caution when replacing traverse deck
The new traverse deck short-circuits by the short pin, the foil (B) and short lands to protect the
laser diode against electrostatic breakdown. Be sure to replace to new one following
procedures.
1. Remove the short pin from the FFC, and then connect it to the
connector.
2. Cut the foil (B). (Refer to
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Fig. 3-1.
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