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Performance Verification
4–24
AM700 Audio Measurement Set Service Manual
Figure 4–16: Audio Analyzer main menu with input range and input select
submenus
Table 4–5: High resolution analyzer checks
Range Voltage applied CH 1 amplitude reading CH 2 amplitude reading
Manual Range
At 120 Hz (reference
122.75 V (+44 dBu) (24.5 V)
61.52 (+38 dBu) (24.5 V)
30.83 V (+32 dBu) (24.5 V)
15.45 V (+26 dBu) 15. V
7.74 V (+20 dBu) 7.5 V
3.88 V (+14 dBu) 3.75 V
1.95 V (+8 dBu) 1.875 V
974.95 mV (+2 dBu) 0.9375 V
488.54 mV (–4 dBu) 0.469 V
244.62 mV (–10 dBu) 0.234 V
123.02 mV (–16 dBu) 117 mV
61.51 mV (–22 dBu) 58 mV