-2-
PS-2760D
To engineers in charge of repair or inspecti-
on of our products.
Before repair or inspection, make sure to follow the inst-
ructions so that customers and Engineers in charge of
repair or inspection can avoid suffering any risk or injury.
1. Use specified parts.
The system uses parts with special safety features against fire
and voltage. Use only parts with equivalent characteristics when
replacing them.
The use of unspecified parts shall be regarded as remodelin g for
which we shall not be liable. The onus of product liability (PL) shall
not be our responsibility in cases where an accident or failure is as
a r esult of unspecified par t s being used.
2. Place t he parts an d wiring back in their o riginal positions after
replacement or re-wiring.
For proper circuit construction, use of insu lation tubes, bo nding,
gaps to PWB, etc, is involved.The wiring connection and routing to
the PWB are speci ally planned using cla mps to ke ep away from
heated and high voltage parts. Ensure that they are placed back
in their original positions after repair or inspection.
If extended damage is caused due to negligence during repair, the
legal responsibility shall be with the repairing company.
3. Check for safety after repair.
Check that the screws, parts and wires are put back securely in
their original position after repair. Ensure for s afety reason s there
is no po ssibility of secondary ploblems around the repaired spo ts.
If extended damage is caused due to negligence of repair, the
legal responsibility shall be with the repairing company.
4. Caution in removal and making wiring connection to the parts
for
the automobile.
Disconnect the battery terminal after turning the ignition key off.
If wrong wiring connections are made with the battery connected,
a short circuit and/or fire may occur. If extensive damage is
caused due to negligence of repair, the legal responsibility shall
be with the repairing company.
5. Cautions regarding chips.
Do not reuse removed chips even when no abnormality is o b-
served in their appearance. Always replace them with new ones.
(The chip parts include resistors, capacitors, diodes, transistors,
etc). The negative pole of tantalum capacitors is highly suscep-
tible to heat, so use special care when replacing them and
check the operation afterwards.
6. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that the iron tip
temperature is around 270 C. Take care not to apply the iron tip
repeatedly (more than three times) to the same patterns. Also
take care not to app ly the ti p with force.
7. Turn the unit OFF during disassembly and parts replacement.
Recheck all work bef ore you apply power to the unit.
8. Cautions in checking that the optical pickup lights up .
Thelaserisfocusedonthediscreflectionsurfacethroughthe
lens of the optical pickup. When checking that the laser optical
diode lights up, keep your eyes more than 30cms away from
the l ens. Prolonged viewing of the laser within 30cms may dam-
age your eyesight.
9. Cautions in handling the optical pickup
The laser diode of the optical pickup can be damaged by elec-
trostatic charge cau sed by your clothes and body. Make sure
to avoid electrostatic charges on your clothes or body, or dis-
charge static electric ity before handling the optical pickup.
9-1.Laser diode
The l aser diode terminals are shorted for transportation in
order to prevent electrostatic damage.
After repl aceme nt, open the s horted circuit. When removing
the pickup from the mechanism, short the terminals by sol-
dering the m to prev ent this damage.
9-2.Actuator
The actuator has a powerful magnetic circuit. If a magnetic
material is put close to it, its characteristics w ill change. En-
sure that no foreig n substances enter through the ventilat ion
slots in the cover.
9-3.Cleaning the lens
Dust on the optical lens affects performance. To clean the
lens, apply a sm all amount of isopr opyl alcoho l to lens paper
and wipe the lens g entl y.
CAUTION
Use of controls, adjustments, or performance of procedures
other than those specified herein, may result in hazardous
radiation exposure.
The compact disc player should not be adjusted or repaired
by anyone except properly qualified service personnel.
( for U.S.A. model )
To Next Page
Loading...
