TAG MCLAREN AUDIO 100 5R Series, Service Manual

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F3 series 100X5R service manual 15
6.0 performance tests
6.1 Test equipment required
Equipment Specification
Signal Generator 20 Hz to 20 kHZ 100mV - 2V rms
Distortion Analyser 20 Hz - 20 kHz
Distortion measurement 0.001% or better
Voltage measurement 0.003 V to 10 V
dB scale -90 dB to +10 dB
Digital Multimeter Accuracy better than 0.5% in V and mV ranges
Oscilloscope Bandwidth >100 MHZ
load 8
O
x2
Various Leads Signal Generator to RCA phono x2, 4mm to analyser & to load, 1KO
phono terminator
6.2 Performance test procedure
For test point (TP) references, see section 6.0 test points.
No Action Test Details
Equipment
6.2.1 Switch off AC
power button
6.2.2 Connect Audio signal Switch on and allow to unmute.
amplifier as generator Measure signal output level:
shown in Figure 1kHz, 100mV 2.83Vrms
5.1
6.2.3 Measure Distortion With equipment set up in bandpass
channel analyser mode @ 20kHz, connect input
separation output: 20 kHz, signal to one AUDIO INPUT and
1 V rms the other INPUT TERMINATED
measurement WITH 1kO, with signal OUTPUT to
mode: distortion analyser. Both outputs
Bandpass should be terminated with 8O.
amplitude .
Measure signal level. Set as 0 dB
reference. Move analyser input
over to other channel. Signal level
should reduce by more than 85 dB,
typically 90 dB.