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CDR-205TX
DISASSEMBLING PROCEDURES-1
CD-R MECHANISM: REPLACEMENT OF OPTICAL PICKUP
Stopper
Chucking plate
The laser diode in the optical pickup block is so sensitive to static electricity, surge current and etc.
That the components are liable to be broken down or its reliability remarkably deteriorated.
During repair, carefully take the following precautions.
Do not touch the optical pickup object lens with the hands.
1. Press the stopper of chucking plate to the arrow
mark direction.
PRECAUTIONS
1. Ground for the work-desk.
Place a conductive sheet such as a sheet of copper
(with impedance lower than 10Mohm) on the work-
desk and place the set on the conductive sheet so that
the chassis can be grounded.
2. Grounding for the test equipments and tools.
Test equipments and toolings should be grounded in
order that their ground level is the same the ground of
the power source.
3. Grounding for the human body.
Be sure to put on a wrist-strap for grounding whose
other end is grounded.
Be particularly careful when the workers wear
synthetic fiber clothes, or air is dry.
4. Select a soldering iron that permits no leakage and
have the tip of the iron well-grounded.
5. Do not check the laser diode terminals with the
probe of a circuit tester or oscilloscope.
Remove the mechanism from the chassis.
2. Remove the chucking plate.
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