Enraf Nonius 1403773, Service Manual

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Enraf-Nonius B.V. Curapuls 670 Service Manual 1403773
Introduction June 1997 1-1
1 INTRODUCTION
1.1 INTRODUCTORY REMARKS
This manual has been written for the technicians involved in the service of the
Curapuls 670. Service can be carried out by the service organization of the supplier or
by any other technician authorized by Enraf-Nonius B.V.
The manufacturer will not be held responsible for the results of maintenance or repairs
by unauthorized persons.
Enraf-Nonius B.V. is further referred to as Enraf-Nonius
1.1.1 Safety Aspects
Safe execution of the procedures in this manual requires technical experience and
general knowledge of safety precautions.
Warnings, Cautions and Notes have been used throughout the manual to bring special
matters to the immediate attention of the reader.
- The Warning concerns danger to the safety of the technician or user;
- The Caution draws attention to an action which may damage the equipment;
- The Note points out a statement deserving more emphasis than the general text, but
which does not deserve a Warning or Caution.
Warning: Inside the Curapuls 670 high voltages up to 500V. are present in the
channel selection circuit, beware of electrical shock. Do not touch
components or heat sinks when the cover is removed.
Warning: High power is present in the power amplifier and the 45 volt supply.
Short circuit can give high currents.
Warning: The HF voltages present in the power amplifier can cause heat
sensation and discomfort after long exposure. Adjustment of the coils in
the power amplifier can be done by hand, but we advise to use a plastic
tool for this purpose.
The sequence of steps in a procedure may also be important from the point of view of
personal safety and prevention of damage, therefore never change the sequence of
procedural steps or alter a procedure.
1.1.2 Legal Aspects
This manual and the information herein are copyright property of Enraf-Nonius B.V.
(Delft, The Netherlands).
Enraf-Nonius B.V. disclaims any responsibility for personal injury and/or damage to
equipment caused by:
- Negligence or disregard of a Warning or Caution;