5 Handling Precautions for Traverse Unit
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.
5.1. Cautions to Be Taken in Handling the Optical Pickup 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 FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible
cable, cut off the antistatic FPC.
5.2. Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static
electricity in the working environment. Proceed servicing works under the working environment where grounding works is
completed.
5.2.1. Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
5.2.2. Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
11
SA-PT850EE
Summary of Contents for SA-PT850EE
Page 3: ...3 SA PT850EE ...
Page 12: ...12 SA PT850EE ...
Page 23: ...8 1 3 Advanced Digital Sound 8 1 4 Easy to Use 8 1 5 HDMI Compatible Products 23 SA PT850EE ...
Page 39: ...10 2 Main Components and P C B Locations 39 SA PT850EE ...
Page 54: ...Step 3 Remove the middle chassis Step 4 Remove the traverse unit 54 SA PT850EE ...
Page 70: ...SA PT850EE 70 ...
Page 72: ...SA PT850EE 72 ...
Page 82: ...82 SA PT850EE ...
Page 114: ...25 Exploded Views 114 SA PT850EE ...
Page 115: ...25 1 Cabinet Parts Location SA PT850EE 115 ...
Page 116: ...SA PT850EE 116 ...
Page 117: ...25 2 Packaging SA PT850EE 117 ...