Chapter 4 219
Troubleshooting the Analyzer
Problems at Instrument Power-Up
Problems at Instrument Power-Up
This section describes symptoms that can occur when the analyzer is
first powered on.
CAUTION Immediately unplug the analyzer from the ac power line if the unit
shows any of the following symptoms.
• Smoke, arcing, or unusual noise from inside the unit.
• No response of any kind when unit is plugged into ac power mains
and turned on.
• The analyzer ac power fuse blows.
• A circuit breaker or fuse on the main ac power line opens.
These potentially serious faults must be corrected before proceeding.
Refer to “Troubleshooting an Inoperative Analyzer.”
Note that analyzers equipped with the AM/FM speaker (Options 102,
103, or 110) normally emit noise from the speaker at power-up. This is
not a problem, adjust the volume control as desired.
Table 4-1 lists symptoms that can occur when the instrument is first
powered on. Refer to this table for an overview of symptoms at
power-up and their possible cause.
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