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Optical Pickup Block and Base Unit Handling Precautions
(LCX-4R)
The laser diode inside the optical pickup can be destroyed by
static electricity due to the static charge accumulated in human
body or in cloths.
Before starting the repair work of optical block and/or laser
diode, be very careful of the electrostatic breakdown because of
potential static electricity from clothing and your body. Follow the
same work procedures that are described in the printed material
supplied with the repair optical block. Also, the FLEX C.B can be
easily damaged. Be very careful when handling it.
Precaution when laser diode is emitting laser
NEVER LOOK into the laser diode from directly on top of the
laser diode. Doing so may result in loss of eyesight.
Precaution when handling the optical pickup (LCX-4R)
Because the laser diode inside the optical pickup can be very
easily destroyed by static electricity, short circuit the laser
taps of the FLEX C.B by solder-bridge before starting
handling the optical laser. At the same time, take the
sufficient preventive measures to protect the laser diode from
the static electricity. The FLEX C.B can be easily damaged.
Be very careful when handling it.
Laser tap
Optical block FLEX C.B
•
If the MAIN C.B is removed when this machine is powered
on during repair, this machine will not work. Fix the protruded
portion (
portion) of the OPEN/CLOSE detection switch
(MAIN C.B S806) with adhesive tape in order to work this
machine.
•
The FLEX C.B (Overwrite head) is connected to the MAIN
C.B directly by soldering. Be careful not to damage the FLEX
C.B (Overwrite head).
To perform any repair work on the component side of the
MAIN C.B, connect the FLEX C.B (Overwrite head) and the
MAIN C.B with the jumper leads before starting the repair
work. (Refer to DISASSEMBLY INSTRUCTIONS on page 9.)
FLEX C.B
(Overwrite head)
Tape
S806
*
For replacement and repair of CDX2671-203 GA (IC801) that
is used in this machine, special tool is required.
-6-
PANEL ASSY, TOP
MAIN C.B
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