SA-MAX370PU, SA-MAX770PU, SC-MAX370, SC-MAX770 - Panasonic Audio Service Manual (repair manual). Page 8

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The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.

The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.

1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed

should be short-circuited with a short pin or a clip.

3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FFC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi-

ble cable, cut off the antistatic FFC.

Figure 2-2

• 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.

• Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed and ground the sheet.