Lexicon LXP-5 - Performance Tests; LXP-5 Audio Signal Tracing and Stages

Performance
Verification
Lexicon
Peformance Tests
Equipment Required
Audio Signal Tracing
Low Distortion Osciliator with single-ended 600 ohm output, <.005%
THD.
THD+N Distortion
Analyzer/Level Meter with switchable 30Khz or audio bandpass
filtering
Audio input cable single-ended, shielded audio cable with
1/4" plug on one end and proper connector
on other end to connect to Low Distortion
Oscillator output
Audio output cable single-ended, shielded audio cable w/1/4"
plug on one end and the proper connectors
on other ends to connect to THD+N
Distortion Analyzer
Audio terminator plugs two 1/4" plugs, each with a 100K ohm
resistor attached between tip and sleeve
1/4” Shorting plug with tip and sleeve shorted inside shielded
casing
Input Level:
Output Level:
Mix:
Program:
Fully clockwise to Maximum Level
Fully clockwise to Maximum Level
Fully counter clockwise to 100% Dry (unprocessed)
Audio Test Loop (See Diagnostic Tests , Page 2-2)
Audio connections
1. Audio input cable from Low Distortion Oscillator output to left or right
channel input
2. 1/4" shorting plug to unused channel input
3. Audio terminator plugs to left and right channel outputs
2-12