SA-BTT460GS, SA-BTT460PH, SA-BTT480EE, SA-BTT480GS, SC-BTT480EEK - Panasonic Audio Service Manual (repair manual). Page 10

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1. Never look at the laser light beam directly or directly the laser light beam at exposed skin, the laser light beam has the poten-

tial to cause serious eye and skin damage.

2. Do not drop or otherwise subject the OPU to physical shocks.
3. Never touch the objective lens, actuator, photo diode, laser diode when handling the OPU Figure 2-2.
4. Do not leave unpack OPU in hot, high humid or dusty place.
5. Ensure that the work benches, tools, jigs, measuring instruments and soldering irons (including ceramics) on the production

line and in the inspection department are ground, and the personnel wear wrist straps.

6. Keep the power source of the OPU protected from internal and external sources of electrical noise.
7. Do not handle OPU carclessly due to actuator and photo diode may deteriorate.
8. When applying the grease to main shaft and sub shaft, ensure no grease contact with the critical area of the OPU.
9. Remove the solder at the short land area (laser diode terminal between LD and GND) promptly.

10. When removing the OPU from the tray, ensure to grasp the OPU at the areas indicated in Figure 2-2. Never touch the objec-

tive lens, actuator, photo diode and laser diodes. Touching them may impair their performance.

Figure 2-2