Onkyo DX-6830 - Optical Pick-Up

DX-6830
CAUTION ON REPLACEMENT OF OPTICAL PICKUP
The laser diode in the optical pickup block is so During repair,carefulley take the following precautions.
sensitive to static electricity,surge current andetc, (The following precautions are included in the service
that the components are liable to be broken down parts.)
or its reliability remarkably deteriorated.
PRECAUTIONS
1.Ground for the work-desk. 3.Grounding for the human body.
Place a conductive sheet such as a sheet of copper Be sure to put on a wrist-strap for grounding whose
(with inpedance lower than 10M.) on the work- other end is grounded.
desk and place the set on the conductive sheet so Be particularly careful when the workers wear
that the chassis. synthetic fiber clothes, or air is dry.
2.Grounding for the test equipment and tools. 4.Select a soldering iron that permits no leakage and
Test equipments and toolings should be grounded have the tip of the iron well-grounded.
in order that their ground level is the same the 5.Do not check the laser diode terminals with the
ground of the power source. probe of a circuit tester or oscilloscope.
Care Should be taken with the optical pickup.
The optical pickup is sensitive to static electricity surge currents,and other
high electrical noise, and because there is the possibility of damage to
performance, in the handling of the pickup, the utmost care must be
taken, particularly with regard to static electricity.
1, When checking the laser terminal, avoid making connections using the
probes of a tester or oscilloscope, or an ordinary power supply.
2. When replacing the optical pickup, first short the LD terminals and
remove the connector. Also, when attaching the new optical pickup,
after attaching the connector, unsolder the LD terminals.
Terminal
LD
Optical pickup