CD73
COMPACT DISC PLAYER
- 8 -
INSTRUCTION FOR HANDLING OPTICAL SYSTEM BLOCK PICK-UP
Electrostatic breakdown of the laser diode in the optical system block may occur due to a potential 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 sur-
face 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
IMPORTANT NOTES
SHOW THE SOFTWARE VERSION
Press " I< "(TRACK), " STOP ", " I< "(TRACK) will show the software version under STOP mode with disc inside. It
will return to normal after 2 seconds.
JUMPER SETTING BETWEEN CD73 & CD83
Location
CD73
CD83
PL100
OPEN
OPEN
PL202
OPEN
SHORT
PL203
SHORT
OPEN
PL204
OPEN
SHORT
PL205
SHORT
OPEN
PL300
1/2 SHORT
2/3 SHORT
PL400
SHORT
OPEN
PL401
SHORT
OPEN
PL402
SHORT
OPEN
PL403
OPEN
SHORT