Bose ControlSpace ESP-00 II Service Manual page 78

Note: The Generator fields that will be altered dynamically throughout the test are as follows:
-- Generator Frequency
-- Generator Amplitude
3.10 Note the Analyzer dialog box in Figure M. There will be several adjustments to the values in
this panel throughout the test and close attention must be paid to the process steps.
3.11 Note the Yellow rectangle in Figure M.
Set the Analyzer Instrument to 'Audio
Analyzer'. Set the Input to 'Analog'. Set the
'Level' to 'dBu' units. Set the 'Freq' to 'kHz'.
'Range' should be checked in both boxes.
3.12 Note the Green rectangle in Figure M.
'Function' should be set to 'dBu' units.
'Measurement Function' should be set to
'Amplitude' (THD+N Ratio is shown in this
example). "Range should be checked in
both boxes.
3.13 Note the Red rectangle in Figure M. Set 'Det' to 'Auto' & 'RMS'. Set 'BW' to '<10Hz' &
'FS/2'. Set 'BP/BR Filt Freq' to 'Sweep Track'. Set 'Fltr' to 'None'. References should be as
follows; 'dBrA & dBrB' should be set to '387.3 mV'. 'Freq' should be '1.00000kHz'. 'V/FS' should
be '1.000 V'. 'Watts' should be '8.000 Ohms'. 'dBm' should be '600.0 Ohms'.
Note: The Generator fields that will be altered dynamically throughout the test are as follows:
-- Analyzer Level
-- Analyzer Frequency
-- Analyzer Function
-- Analyzer Measurement Function
-- Analyzer BW (Bandwidth)
-- Analyzer Fltr (Filter)
4.0 Test Instructions. (See Addendum B - Process Summary)
4.1 On the Analog Generator Panel, click on the 'Outputs' button and verify that the output has
switched to 'ON'.
4.2 Switch your view to the Analyzer
Panel, Read and Record the 'Level' value.
It should be between +2.5 and +5.5 dBu
for a passing condition. Note that the
Frequency is 1.000kHz ±20Hz.
See Figure N.
4.3 Set the 'Outputs to OFF' on the Analog
Generator and verify that the Measured
level drops to below <-77 dBu.
TEST PROCEDURES
78
Figure M
Figure N