Nidek Medical LT-980, Руководство по обслуживанию

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LLT9A*RDA002A
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2 SAFETY PRECAUTIONS
1 . Requirements for prior contact regarding repair
1 ) When conducting repairs described in the Service Manual or Service Manual Annex,
prior contact with NIDEK is not necessary.
2 ) When conducting repairs not covered in the Service Manual or Service Manual
Annex, prior contact with NIDEK in writing is required.
3 ) When for some reason, repairs were conducted because they needed to be done
immediately, or other such circumstance, contact NIDEK as soon as possible in writ-
ing after conducting repairs to the instrument.
2 . General precautions
1 ) Servicing must be performed by NIDEK service persons or other qualified personnel.
2 ) Observe the procedures described in this manual.
3 ) Never wipe the covers using an organic solvent such as paint thinner. Doing so may
ruin the surface and impair the appearance of the system.
4 ) When performing maintenance work, turn off the power switch and disconnect the
power cord from the wall outlet unless the power needs to be on.
3 . Cautions related to power supply and power cable
1 ) Disconnect the power cord by holding its plug. Do not place heavy objects on the cord
or coil the cord tightly. A damaged power cord may cause fire or electric shock.
2 ) Occasionally clean the prongs of the power plug with a dry cloth. If dust accumulates
between the prongs, the dust will collect moisture, and short circuit or fire may occur.
3 ) Insert the power plug into the wall outlet completely. A fire may occur if the tracer is
used with improper connection.
4 ) Do not overload the electrical outlet. A fire may occur.
5 ) Be sure to use an outlet equipped with a ground terminal. Electric shock may occur in
the event of malfunction or power leakage.
6 ) Be sure to use a wall outlet that meets the power requirements. If the line voltage is
too high or too low, the tracer may not perform properly. Electric shock, malfunction,
or fire may result.
4 . Maintenance cautions
1 ) Take antistatic precautions prior to repair.
2 ) Take proper care against electric shock during repair.
3 ) Tighten or loosen screws with proper tools.
4 ) Never drop parts or screws inside the system.
5 ) Prepare storage cases so as not to lose the removed screws or parts.
6 ) After loosening the screws fixed by a threadlocking adhesive, be sure to reapply the
threadlocking adhesive to the screws when retightening them.
7 ) After replacing parts, confirm that they are fastened in their original positions securely
before turning on the power.
8 ) See Wiring Diagram and Connecting Cable to check cable breaks as described in
TROUBLESHOOTING. In addition, check cables for the following:
a . Connectors are connected and crimped properly.
b . No contact failure occurs after re-connection of connectors.
c . Cables are soldered properly.