Noise Measurement - NAD T 175 Service Manual

DTS SECTION
Output Level (Vol 0 dB)
Channel Difference (FL ref)
Harmonic Distortion (Audio Filter)
Frequency Response (20 Hz to 20 kHz)
Subwoofer Output Level

NOISE MEASUREMENT

Surround mode noise (Preout) DVD input 1V (L
only), volume @ -12dB, Enhanced Stereo 1 mode,
100mV Preout output reference
Surround mode noise (Subwoofer out) DVD input 1V
(L only), volume @ -12dB, Enhanced Stereo 1
mode, 1V Preout output reference
Surround mode noise (Preout) DVD input 1V (L
only), maximum volume, Enhanced Stereo 1 mode,
100mV Preout output reference
Surround mode noise (Subwoofer out) DVD input 1V
(L only), maximum volume @ -12dB, Enhanced
Stereo 1 mode, 1V Preout output reference
AM TUNER SECTION
Input level is expressed as the reading in open circuit
of 75-ohm source impedance signal generator
Usable sensitivity (999/1000 kHz)
S/N Ratio
THD
IF Rejection
Image Rejection
Selectivity
Output
Loop sensitivity
Frequency Response
FM TUNER SECTION
Input level is expressed as the reading in open circuit
of 75-ohm source impedance signal generator
Usable sensitivity (98 MHz)
S/N Ratio
Frequency Response
Channel Separation
Alternate Channel Selectivity (40 dBμ, ± 400 kHz)
Capture Ratio
AM Suppression
Image Rejection
: FL/FR/C/SL/SR Track 6
: FL/FR/C/SL/SR Track 6
: FL/FR/C/SL/SR Track 10-14
Track 26-30
1 kHz ref at pre-out (FL) Play Track 10, change to 15
(5 mV in)
(5 mV in)
(450 kHz)
(F+2xIF)
(20 dB S/N)
999/1000 kHz
603/600 kHz
1404/1400 kHz
(100 - 2.3 kHz, 5 mV)
(60 dB, IHF wtd) Mono
Stereo
(20 Hz - 15 kHz, 60 dBμ)
(60 dBμ) 100 Hz
1 k
10 kHz
(40 dBμ)
(60 dBμ, 100% Mod. FM, 30% Mod. AM)
(119.4 MHz)
1 kHz
1 kHz
1 kHz
20-20kHz
A-WTD
20-20kHz
A-WTD
20-20kHz
A-WTD
20-20kHz
A-WTD
*C
≤ 15 dBμ
≥ 60 dB
≥ 63 dB
0 ± 1.5 dB
≥ 30 dB
≥ 32 dB
≥ 30 dB
≥ 60 dB
≤ 3 dB
≥ 48 dB
−
5
200 ± 10mV
0 ± 1.5 dB
≤ 0.08 %
+2/-1.5 dB
12.5 ± 1.5 dB
-72dB
-75dB
-75dB
-78dB
-48dB
-50dB
-67dB
-72dB
≤ 60 dBμV
≥ 38 dB
≤ 3 %
≤ 36 dB
≥ 28 dB
≥ 17 dB
170 -20/+30 mV
≤ 66 dB
≤ 66 dB
≤ 66 dB
± 6 dB
*AH
≤ 15 dBμv
≥ 60 dB
≥ 63 dB
0 ± 1.5 dB
≥ 30 dB
≥ 32 dB
≥ 30 dB
≥ 45 dB
≤ 3 dB
≥ 48 dB
≥ 65 dB