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2
Service
Pre-Troubleshooting Information
This section contains the following pertinent troubleshooting information:
– Safety Considerations
– Recommended Test Equipment
– Repair Considerations
– After Service Considerations
– Assembly Identification and Location
Safety Considerations
Although this instrument has been designed in accordance with international
safety standards, this guide contains information, cautions, and warnings which
must be followed to ensure safe operation and to retain the instrument in a safe
condition. Service instructions, and adjustment procedures requiring removal of
the instrument cover, are for use by service-trained personnel only. To avoid
dangerous electric shock, do not perform any servicing or make any adjustments
with the cover removed, unless qualified to do so.
BEFORE APPLYING AC POWER, THE INSTRUMENT AND ALL PROTECTIVE
WARNING
EARTH TERMINALS, EXTENSION CORDS, AUTO TRANSFORMERS, AND
DEVICES CONNECTED TO THE INSTRUMENT SHOULD BE CONNECTED TO A
PROTECTIVE EARTH GROUNDED SOCKET.
ANY INTERRUPTION OF THE PROTECTIVE GROUNDING CONDUCTOR INSIDE
OR OUTSIDE THE INSTRUMENT OR DISCONNECTION OF THE PROTECTIVE
EARTH TERMINAL WILL CAUSE A POTENTIAL SHOCK HAZARD THAT COULD
RESULT IN PERSONAL INJURY. INTENTIONAL INTERRUPTION IS
PROHIBITED.
Any maintenance and repair of the opened instrument under voltage should be
avoided as much as possible and, if necessary, should be carried out only by a
skilled person who is aware of the hazards involved (for example, fire and electric
shock).
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Keysight 53147A/148A/149A Assembly Level Service Guide
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Table of Contents
Troubleshooting
