NAD T 187 Service Manual

Also see for T 187: Owner's manual Owner's manual

NAD T 187 Service Manual Manual pdf 4 page image

4SPECIFICATIONSPRE AMPLIFIER SECTIONRated distortion (Ext 7.1 1kHz 500mV input ,Pre-out 1V with 30kHz LPF, FL/C/FR) ≤ 0.1 %(Ext 7.1 1kHz 500mV input ,Pre-out 1V with 30kHz LPF, SL/SR/BL/BR) ≤ 0.1 %S/N Ratio (Ext 7.1 1kHz 500mV input ,Pre-out 1V with A-WTD, 1kΩ termination, ≥ - 85 dBFL/C/FR/SL/SR/BL/BR)Frequency Response (20 Hz - 20 kHz) 0 ± 1.0 dBChannel Balance (1 dB to -40 dB, 1 kHz) ≤ 2 dB(-41 dB to -50 dB, 1 kHz) ≤ 3 dBAudio muting at 1 kHz ≥ 55 dBSubwoofer out, 500 mV in (THD at 2V Pre-out, 100 Hz) ≤ 0.5 %(S/N at 2V Pre-out, 100 Hz) ≥ 70 dB(Min. Vol. hum. 47 kΩ w/o filter) ≥ -56 dBV(Ext. 7.1 in 6 CH A-wtd) ≥ -65 dBVCrosstalk (500 mV input, ref @ 1V out, 1 kHz) ≥ -60 dBControlsBass (at 500 mV in, ref @ 1V out, 100 Hz) ± 10 dB ± 2Treble (at 500 mV in, ref @ 1V out, 100 Hz) ± 10 dB ± 2Dialog (Vol. set at ± 6 dB, 2 kHz) ± 4 dB ± 1DOLBY DIGITAL SECTIONChannel Difference (FL ref. Track 30) ± 1.2 dBFrequency Resporse at Dolby config.2 SL Track 46 200 - 20 kHz ± 0.8 dBSR Track 47 200 - 20 kHz ± 0.8 dBC Track 44 200 - 20 kHz ± 0.8 dBHarmonic Distortion (1 V, Audio LPF, Dolby Config 1) FL Track 65 997 Hz ≤ 0.08 %FR Track 67 997 Hz ≤ 0.08 %SL Track 68 997 Hz ≤ 0.08 %SR Track 69 997 Hz ≤ 0.08 %C Track 66 997 Hz ≤ 0.08 %S/N Ratio (31 for 100mV @ Pre-out, Track 35) CCIR / ARM ≥ 65 dBAudio LPF ≥ 70 dBA-wtd ≥ 70 dBDOLBY PRO LOGIC II SECTIONFrequency ResponseI/P mode : L, R : 1 V in, 1V @ Pre-out, Ch L/R 40 Hz 0 ± 2.0 dB20 kHz 0 ± 2.0 dBI/P mode : L=R : 1 V in, 1V @ Pre-out, Ch /L/R 40 Hz 0 ± 2.0 dBCh C 20 kHz 0 ± 2.0 dBI/P mode : L=-R : 1 V in, 1V @ Pre-out, Ch SL/SR 40 Hz 0 ± 2.0 dB20 kHz 0 ± 2.0 dBS/N Ratio (200 mV in, 100mV @ Pre-out, A-WTD w/ 1 kΩ termination)I/P mode : L, R : 1 kHz, Ch L/R ≥ 65 dBI/P mode : L=R : 1 kHz, Ch C ≥ 65 dBI/P mode : L=-R : 1 kHz, Ch SL/SR ≥ 65 dBTHD (2.2 V in, 100mV @ Pre-out, w/ 80 kHz LPF, 1kHz) ≤ 0.2 %MAX VOL PLII Music mode, 1kHz, 1Vp-p, CD in, ≥ 40 dBNOISE connect to T787 Ext 7.1, measure at T787Spk out, with ref. to 1W S/N (L,R,C,SL,SR)