NAD T743, Service Manual

Page: 5 / 72

5
DTS SECTION
Output Level (Vol 0 dB) : FL/FR/C/SL/SR Track 6 1 kHz 2.5
±±±±±
0.2 W
Channel Difference (FL ref) : FL/FR/C/SL/SR Track 6 1 kHz
±±±±±
1.0 dB
Harmonic Distortion (Audio Filter) : FL/FR/C/SL/SR Track 10-14 1 kHz
≤≤≤≤≤
0.08 %
Frequency Response (20 Hz to 20 kHz) Track 26-30 +2/-1.5
Subwoofer Output Level 1 kHz ref at pre-out (FL) Play Track 10, charge to 15 12.5
±±±±±
2 dB
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)
≤≤≤≤≤
30 dB
µµµµµ
V
S/N Ratio (5 mV in)
≥≥≥≥≥
38 dB
THD (5 mV in)
≤≤≤≤≤
3 %
IF Rejection (450 kHz)
≥≥≥≥≥
36 dB
Image Rejection (F+2xIF)
≥≥≥≥≥
28 dB
Selectivity
≥≥≥≥≥
17 dB
Output 170
±±±±±
20 mV
Loop sensitivity (20 dB S/N)
999/1000 kHz
≤≤≤≤≤
66 dB
603/600 kHz
≤≤≤≤≤
66 dB
1404/1400 kHz
≤≤≤≤≤
66 dB
Frequency Response (100 - 2.3 kHz, 5 mV)
±±±±±
6 dB
FM TUNER SECTION *C,*CT *AH,*AHT
Input level is expressed as the reading in open circuit
of 75-ohm source impedance signal generator
Usable sensitivity (98 MHz)
≤≤≤≤≤
15 dB
µµµµµ ≤≤≤≤≤
15 dB
µµµµµ
v
S/N Ratio (60 dB, IHF wtd) Mono
≥≥≥≥≥
63 dB
≥≥≥≥≥
63 dB
Stereo
≥≥≥≥≥
63 dB
≥≥≥≥≥
63 dB
Frequency Response (20 Hz - 15 kHz, 60 dB
µµµµµ
) 0
±±±±±
1.5 dB 0
±±±±±
1.5 dB
Channel Separation (60 dB
µµµµµ
) 100 Hz
≥≥≥≥≥
30 dB
≥≥≥≥≥
30 dB
1 k
≥≥≥≥≥
38 dB
≥≥≥≥≥
38 dB
10 kHz
≥≥≥≥≥
30 dB
≥≥≥≥≥
30 dB
Alternate Channel Selectivity (40 dB
µµµµµ
,
±±±±±
400 kHz)
≥≥≥≥≥
60 dB
≥≥≥≥≥
45 dB
Capture Ratio (40 dB
µµµµµ
)
≤≤≤≤≤
3 dB
≤≤≤≤≤
3 dB
AM Suppression (60 dBµ, 100% Mod. FM, 30% Mod. AM)
≥≥≥≥≥
48 dB
≥≥≥≥≥
48 dB
Image Rejection (119.4 MHz)
−−−−− ≥≥≥≥≥
65 dB
I.F. Rejection (10.7 MHz)
≥≥≥≥≥
78 dB
−−−−−
Pilot Suppression (98 MHz)
≥≥≥≥≥
60 dB
≥≥≥≥≥
60 dB
THD (60 dB
µµµµµ
, L=R 75 kHz for AH, 40 kHz Dev for C) Mono
≤≤≤≤≤
0.25 %
≤≤≤≤≤
0.25 %
Stereo
≤≤≤≤≤
0.35 %
≤≤≤≤≤
0.35 %
Auto-Search Sensitivity On
≥≥≥≥≥
24 dB
µµµµµ ≥≥≥≥≥
24 dB
µµµµµ
Off
≤≤≤≤≤
15 dB
µµµµµ ≤≤≤≤≤
15 dB
µµµµµ
RDS decode Sensitivity
≤≤≤≤≤
26 dB
µµµµµ −−−−−
PHYSICAL SPECIFICATIONS
Dimensions (Width x Height x Depth) 435 x 150 x 390 mm
Net Weight 13.3 Kg (29.30 lbs)
Shipping Weight 16.9 Kg (37.20 lbs)