IMPORTANT M55 & M5 MECHANISM INSTALLATION NOTES
INSTRUCTION FOR HANDLING 02-55598-00 FOR M55 & M5 AS WELL AS OPTICAL BLOCK
Electrostatic breakdown of the laser diode in the optical system block may occur due to a poten-
tial difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground
must be provided as follows to prevent any electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a ground band (1M ohm) that is properly to remove any static electricity that may
be charged on the body.
2. Ground for Work Bench
Be sure to place a conductive sheet (1M ohm) or copper plate with proper grounding on the work
bench or other surface on which the pick-up is to be placed.
3. Because the static electricity charge on the clothing does not discharge through the body
grounding band, do not let clothing to get in contact with the pick-up unit.
INCORRECT CORRECT
NOTE: Laser diodes are so susceptible to damage from
static electricity that even if a static discharge does not
ruin the diode, it can shorten its life or cause it to work
improperly.
1.Grounding band
1M ohm
1M ohm
2.Conductive Sheet
or Copper Plate
Ground Conductive
Wrist Band for Body
Ground Line
Less than
10 ohm
Conductive Gum Mat
Soldering
Iron with
Ground
wire
Caution:
Laser diodes are extremely susceptible to damage
from static electricity. Even if a static dis-charge
does not ruin the diode, it can shorten its life
or cause it to work improperly. When replac-
ing the pick-up, use a conductive mat,
a grounded soldering iron, and so on,
to protect the laser diode from
static damage.
1-4b
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