2Service
152 Keysight 53210A/53220A/53230A Assembly Level Service Guide
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 maintain 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 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 shoc haxard 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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