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LASER BEAM SAFETY PRECAUTIONS
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Do not look directly at the laser beam coming from the pick-
up or allow it to strike against your-fingers, skin, etc. -This’ model has adisc chuck lever and top lid. This disc ch
Do not apply power if there IS abroken part mthe laser lever and top hd prevent to expose the laser beam for usel
HANDLING THE PICK-UP
1.
a.
b.
2.
a.
b.
Shipping and storage cautions c.
The pick-up must be stored in aconductive bag until
immediately prior to its use.
Do not drop it or subject it to impacts. 3.
Repair cautions
When handling the pick-up, be careful not to give it
undue force or shock by your hands. Otherwise the
pick-up may malfunction or the PCB may be cracked.
The pick-up which has been minutely adjusted before
shipment as one part. Never touch and move the
adjusting points and setscrews of the pick-up unless
otherwise described in the item of adjustment to avoid
damage.
BEFORE REPAIRING THE CD PLAYER
1.
a.
b.
Preparations 2.
Many ICS, LSI and the Pick-up (laser diode) are used in a.
the compact disc player. These components are sensitive
to static electricity, and might be damaged by static b.
electricity or high voltage, so particular care should be
taken regarding this point.
Many precision components and the lens are used in
the pick-up. c.
Never attempt to make repairs, or to store parts,
where the temperature or humidity is high, where d.
magnetism is strong, or where there is much dust.
-1-
Astrong magnet is used in the pick-up.
Do not bring amagnet or other magnetized object ne
to it.
Cleaning the lens
‘If dust gets on the lens, clean it away by using an i
brush such as used for acamera lens.
●The lens is held in place by aspring.
If the center of the lens is dirty, carefully clean
using cotton swab moistened with isopropylalcoh
Since special coating is made on the surface of t
lens which is made of plastics, do not use other ki
of alcohol and cleaning fluid to prevent damage
the lens. Also, be careful not to bend the lens spri
when cleaning.
Notes regarding repairs
Be sure to first disconnect the power plug befc
attempting to replace any component.
All tools, instruments, etc., used for measuring must
grounded.
Grounding can be accomplished by using conduct
metal sheet on the work bench.
To prevent AV leakage of the soldering iron, ground
metal part.
Repair personnel must be grounded.
