Section
4C
Calibration
Adjustments
4C-1.
INTRODUCTION
The
adjustment procedures for the Generator
are
described in the following paragraphs.
The recommended
test
equipment
for
calibration is denoted by an A in Table 4A-I.
Adjustment
procedures for
the
Power Supply, Display, Output, Synthesizer, and
Attenuator/ RPP assemblies are covered in this section. Adjustment procedures for the
High-Stability Reference, Medium-Stability Reference, and Low-Rate FM options are
given
in Section 6.
4C-2.
SAFETY
This is a
Safety Class
1 instrument.
It is provided with a protective earth terminal.
Warnings and cautions are for your protection and to avoid damage to the equipment.
Please take them seriously.
WARNING
BECAUSE SOME SERVICE PROCEDURES
DESCRIBED
HERE ARE DONE
WITH
POWER APPLIED TO THE
SIGNAL
GENERATOR AND WITH
PROTECTIVE
COVERS
REMOVED, SERVICE SHOULD BE DONE ONLY BY
TRAINED SERVICE PERSONNEL WHO UNDERSTAND
THE HAZARDS
INVOLVED. WHERE SERVICE CAN BE PERFORMED WITHOUT POWER
APPLIED, THE SIGNAL GENERATOR SHOULD BE
UNPLUGGED FROM
THE LINE POWER.
DO NOT INTERRUPT THE PROTECTIVE GROUNDING CONNECTION. TO
DO SO WOULD
CREATE
A POTENTIAL SHOCK HAZARD THAT COULD
RESULT IN
PERSONAL
INJURY. SECURE THE INSTRUMENT AGAINST
UNINTENDED OPERATION IF IT IS LIKELY THAT THIS PROTECTION HAS
BEEN IMPAIRED. USE ONLY 250V
FUSES OF
THE
PROPER
CURRENT
RATING.
CAUTION
To avoid damage to the Generator, unplug the Instrument before removing any
Printed
Circuit Assembly.
4C-3.
POWER SUPPLY, A3A1, ADJUSTMENT
This
procedure covers the +37V adjustment, R3, on the Power Supply assembly, A3A1.
This is
the only adjustment on the Power Supply PCB.
4C-1
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