Lexicon 200, Руководство по обслуживанию

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Lexicon
4-7
Lexicon Audio Precision ATE Summary
This chart represents a summary of test Audio Precision test settings and parameters used by Lexicon
Manufacturing in production testing of all MPX 200 product. This is provided as a reference and supplement
to bench test settings found in the proof of performance in this manual.
A/D Files Source Analyzer
Left Right Bal / Gnd / Sample
Test Input Input Freq Imp. Unbal Float Level Reading Upper Lower Filter Imp Band Rate
A-DGAIN -21dBu -21dBu 997 25 Ohm Unbal Float LEVEL(dBFS) -1.60 -0.66 -2.54 Off ------ -------- 44.1kHz
A-DFREQ -31dBu -31dBu 20-20k 25 Ohm Unbal Float LEVEL(dBFS) 0.025 1.06 -1.06 Off ------ -------- 44.1Khz
ADSETLVL -20dBu -20dBu 997 25 Ohm Unbal Float LEVEL(dBFS) -20.25 -20.00 -20.50 Off ------ -------- 44.1kHz
A-DTHD * -11dBu -11dBu 22-20k 25 Ohm Unbal Float FLTLVL(%) 0.005 0.05 0.0007 Band Rej ------ -------- 44.1kHz
A-DXTALK * -11dBu -11dBu 997 25 Ohm Unbal Float LEVEL(dBFS) -98.50 -54.94 -120.0 Off ------ -------- 44.1kHz
A-DDYNR * -50dBu -50dBu 997 25 Ohm Unbal Float FLTLVL(dBFS) -102.50 -96.94 -120.00 Off ------ -------- 44.1kHz
D/A Files Source Analyzer
Left Right Bal / Gnd / Sample
Test Input Input Freq Imp. Unbal Float Level Reading Upper Lower Filter Imp Band Rate
D-AGAIN 0dBFS 0dBFS 997 ---- -------- -------- AMPL(dBu) 8.46 9.52 7.40 Off 100k 10-500k 44.1kHz
D-AFREQ 0dBFS 0dBFS 20-20k ---- -------- -------- AMPL(dBr) 0.001 1.06 -1.06 Off 100k 10-500k 44.1kHz
D-ATHD 0dBFS 0dBFS 22-20k ---- -------- -------- THD+N(%) 0.005 0.05 0.0007 Off 100k 10-22k 44.1kHz
D-AXTALK 0dBFS 0dBFS 997 ---- -------- -------- XTALK(dB) -95.00 -54.94 -120.00 Off 100k 10-22k 44.1kHz
D-ADYNR -60dBFS -60dBFS 997 ---- -------- -------- AMPL(dBr) -104.25 -96.94 -120.00 Off 100k 22-22k 44.1kHz
A/A Files Source Analyzer
Left Right Bal / Gnd / Sample
Test Input Input Freq Imp. Unbal Float Level Reading Upper Lower Filter Imp Band Rate
A-AGAIN * 0dBu 0dBu 997 25 Ohm Unbal Float AMPL(dBu) 8.29 9.35 7.23 Off 100k 10-500k 44.1kHz
AASETLVL
** 0dBu 0dBu 997 25 Ohm Unbal Float AMPL(dBu) 8.29 8.00 8.50 Off 100k 10-500k 44.1kHz
A-AFREQ * -11dBu -11dBu 20-20K 25 Ohm Unbal Float AMPL(dBr) -0.025 1.06 -1.06 Off 100k 10-500k 44.1kHz
A-ATHD * -11dBu -11dBu 20-20K 25 Ohm Unbal Float THD+N(%) 0.006 0.05 0.0007 Off 100k 20-22k 44.1kHz
A-AXTALK * -11dBu -11dBu 20-20K 25 Ohm Unbal Float XTALK(dB) -64.50 -54.94 -120.00 Off 100k 10-22k 44.1kHz
A-ASNRL* 0dBu 0dBu 997 25 Ohm Unbal Float AMPL(dBr) -100.50 -94.94 -120.00 Off 100k 20-22k 44.1kHz
A-ADYNRL * -50dBu -50dBu 997 25 Ohm Unbal Float THD+N(dBr) -101.00 -94.94 -120.00 Off 100k 20-22k 44.1kHz
A-ASNRR * 0dBu 0dBu 997 25 Ohm Unbal Float AMPL(dBr) -100.50 -94.94 -120.00 Off 100k 20-22k 44.1kHz
A-ADYNRR * -50dBu -50dBu 997 25 Ohm Unbal Float THD+N(dBr) -101.00 -94.94 -120.00 Off 100k 20-22k 44.1kHz
A-AMUTE * 0dBu 0dBu 997 25 Ohm Unbal Float AMPL(dBr) -38.00 -30.00 -50.00 Off 100k 10-500k 44.1kHz
LISTEN Off -24dBu 997 25 Ohm Unbal Float AMPL(dBu) ------ ------ ------ Off 100k 10-500k 44.1kHz