2 - 1
MRT10*RDA001A/E
§2 SAFETY PRECAUTIONS
<
General precautions
>
• Only the service persons who are accustomed to using tools, and have a deep knowledge of
this instrument are allowed to repair the instrument.
• Proceed right work in accordance with the procedure.
If not, accidents or failure of the instrument may result.
• When performing maintenance works, turn off the power switch, and disconnect the power
cord from the wall outlet unless necessary.
• Never wipe the covers, etc. using an organic solvent such as a paint thinner.
The surface may be ruined, and as a result, the appearance of the instrument will be impaired.
<Maintenance precautions>
• In case of instrument malfunction, turn the power switch off after checking the symptom.
• Never drop parts or screws inside the instrument, nor bump it against the surrounding objects.
• Have storage cases ready to ensure the loss of the removed screws or parts.
• In screwing or unscrewing, use a proper tool for the screw
• After loosening the screws fixed by a thread-locking adhesive, and tightening them again, be
sure to apply the thread-locking adhesive to them.
• After replacing parts, make sure that they are fixed securely before turning on the power.
• If you observe strange odors or smoke being emitted from the instrument, immediately turn
off the instrument and locate the causes after disconnecting the power cord from the wall-
outlet.
If the instrument is continuously powered under such abnormal conditions, a fire, electric
shock or total loss of the instrument may result.
• Referring to “8.1 Wiring diagram” and “8.2 Connector cables”, check cables for the following:
1. Connectors are connected securely.
2. No contact failure occurs after re-connection of connectors.
3. No failure in soldering
Do not pull the cables strongly. It may cause a breaking of wire.
Never work with wet hands. It may result in an electric shock or instrument malfunction.
<
Adjustment precautions
>
• Perform adjustment work in a vibration-free, flat and stable place.
Tilted floor or vibratory place may affect a proper adjustment adversely.
• Do not use an adjustment jig for other usage described in this manual.
• Be sure to readjust the optical axis of the prism and cylinder after performing the marked (
)
procedures. The special jigs (the chart projector and the test scale for checking) are necessary
for the readjustment.
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