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5.4. SUGGESTIONS FOR
TROUBLESHOOTING
In situations where the 480 is suspected of
malfunction, it is essential to verify such malfunction
in terms of simple pulse generator impulses at the
output. In consideration of this, the 480 must be
disconnected from its position in any system, and
routine diagnostic analysis performed on the Pulser
with a vacuum tube voltmeter and oscilloscope. It is
9
imperative that testing not be performed with any
amplifier
system
satisfactorily by itself. The testing instructions of
Section 6.1 of this manual and the circuit description
in Section 5 are intended to provide assistance in
locating the region of trouble and repairing the
malfunction. The guide plate and shield cover can
be completely removed from the module to enable
oscilloscope and voltmeter observations with a
minimum chance of accidentally short c ircuiting
portions of the etched board.
The 480 may be returned to ORTEC for repair
service at nominal cost. Our standard procedure
requires that each repaired instrument receive the
same extensive quality control tests that a new
instrument receives. Contact our Customer Service
Department,
(865)
instructions before returning an instrument.
until
the
Pulser
performs
483-2231,
for
s hipping
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