Panasonic SA-PM53E Service Manual page 10

2. Work table grounding. (Fig 4.2) / Put a conductive material (sheet) or
steel sheet on the area where the traverse deck (optical pickup) is
place, and ground the sheet.
Caution:
The static electricity of your clothes will not be grounded through the
wrist strap. So, take care not to let your clothes touch the traverse deck
(optical pickup).
Caution when replacing the Traverse Deck
The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics
breakdown. Be sure to remove the solder from the short point before making connections.
(Fig 4.1)
(Figs 4.2)
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