SECTION 1
SERVICE NOTE
NOTES ON LASER DIODE EMISSION CHECK
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
The laser beam on this model is concentrated so as to be focused onOR BASE UNIT
the disc reflective surface by the objective lens in the optical pick-up
The laser diode in the optical pick-up block may suffer electrostatic
block. Therefore, when checking the laser diode emission, observebreak-down because of the potential difference generated by the
from more than 30 cm away from the objective lens.charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
How To Open The Disc Tray When Power Switch Turns Off
1Refer to 3-1. to remove the case.
3Yoke bracket
2Tray (TURN)
A
Insert the screwdriver (flat-blade) into the tray
(SLIDE), tilt the screwdriver (flat-blade) in theAB
direction of arroA and mow ve the BU cam
assembly in the direction of arroB to openw
the tray (SLIDE).BU cam assembly
Note For Installation (ROTARY ENCORDER (S811))
Note: When attaching the Base unit, insert the
BU camsection A into the groove of BU cam.
Base unit
grooveA
Note: When attaching the BU
cam, engage the Rotary
encorder switch as
shown in the figure.
Rotary encorder
N 4 N |
ACEC
