Agilent Technologies 4284A Service Manual page 46

ASSEMBLY SERVICE INFORMATION
3-1. INTRODUCTION
This s e c t i o n p r o v i d e s a s s e m b l y service information f o r t h e H P 4284A PRECISION L C R
METER (20 Hz to 1 MHz) assemblies.
3-2. SAFETY CONSIDERATIONS
This section contains WARNINGS and CAUTIONS that must be followed f or your protection
and to avoid damaging the equipment.
THE MAINTENANCE PROCEDURES DESCRIBED H E R E I N A R E PERFORMED
WHEN POWER IS SUPPLIED TO THE INSTRUMENT AND ITS PROTECTIVE COV-
ERS A R E REMOVED. T H I S TYPE O F MAINTENANCE M U S T B E PERFORMED
ONLY BY SERVICE-TRAINED PERSONNEL WHO ARE AWARE OF THE HAZARDS
INVOLVED ( F O R EXAMPLE, F I R E A N D ELECTRICAL SHOCK). W H E N M A I N -
TENANCE CAN B E PERFORMED WITHOUT POWER APPLIED TO THE INSTRU-
MENT, REMOVE POWER FROM T H E INSTRUMENT. B E F O R E A N Y REPAIR I S
COMPLETED, E N S U R E T H A T A L L S A F E T Y F E AT U R E S A R E I N TA C T A N D
FUNCTIONING, AND THAT ALL NECESSARY PARTS ARE PROPERLY CONNECT-
ED TO THE PROTECTIVE GROUNDING SYSTEM.
3-3. RECOMMENDED TEST EQUIPMENT
The required troubleshooting t e s t equipment are listed i n Table 1-1, Section 1 . T h e table
lists the type o f instruments required, their critical specifications, and the model numbers o f
the e q u i p m e n t recommended. I f t h e recommended m o d e l s are n o t available, e q u i p m e n t
which meets or exceeds all of the critical specifications may be substituted.
SECTION 3
WARNING'
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