4.1. ABOUT LEAD FREE SOLDER (PbF)
This model uses lead free solder (PbF). For repair use only lead free handsolder.
Caution:
Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 -
70~F (30 - 40~C) higher. Please use a high temperature soldering iron. In case of the soldering
iron with temperature control, please set it to 700 +/-20~F (370 +/-10~C). Pb free solder will tend
to splash when heated too high (about 1100~F/ 600~C). When soldering or unsoldering, please
completely remove all of the solder on the pins or solder area and be sure to heat the soldering
points with the Pb free solder until it melts enough.
5. PREVENTION OF STATIC ELECTRICITY
DISCHARGE
The laser diode in the traverse unit (optical pickup) may brake down due to static electricity of
clothes or human body. Use due caution to electrostatic breakdown when servicing and
handling the laser diode.
5.1. GROUNDING FOR ELECTROSTATIC BREAKDOWN
PREVENTION
Some devices such as the DVD player use the optical pickup (laser diode) and the optical
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