Nad M-51 Service Manual
DRAFT DATE: MAY 2013
NAD
SERVICE MANUAL
M51
Direct Digital DAC
M51
Direct Digital DAC
SAFETY INFORMATION
Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674; 5,974,380;
5,978,762; 6,226,616; 6,487,535; 7,003,467; 7,212,872 & other U.S. and worldwide
patents issued & pending. DTS is a registered trademark & the DTS logos and Symbol
are trademarks of DTS, Inc. © 1996-2007 DTS, Inc. All Rights Reserved.
NAD ELECTRONICS INTERNATIONAL
633 GRANITE COURT, PICKERING, ON, CANADA L1W 3K1
MODEL M51 Direct Digital DAC
POWER RATING 120-240V 50/60Hz 2A
DESIGNED & ENGINEERED IN CANADA, CUSTOM
MANUFACTURED TO NAD SPECIFICATIONS IN CHINA
FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ
SPECIFICATIONS
OVERALL SPECIFICATIONS
Rated distortion (THD+N with AES 17 lter) <0.0005% (ref. 1 kHz 0 dBFS)
<0.002% (ref. 1 kHz -60 dBFS)
IM distortion <0.0001%
Signal-to-noise ratio < -123 dB (ref. 0 dBFS 2V out)
Channel separation > -115 dB (ref. 0 dBFS Volume -1dB)
Sample rate 32 kHz to 192 kHz (USB and digital S/PDIF)
Frequency response ±0.5 dB (ref. 20 Hz – 96 kHz @ 192 KHz sample rate)
Output level 2V (ref. input 0dBFS)
POWER CONSUMPTION
AC Supply 100-240V AC ~ 50/60Hz
Standby power <0.5W
Idle power 16W
INPUT/OUTPUT TERMINALS
INPUT
AES/EBU
Coaxial
Optical
HDMI x 2
USB Audio Class 2.0
OUTPUT
HDMI VIDEO OUT (pass through)
Analog Unbalanced 47 ohms
Analog Balanced 110 ohms
DIMENSION AND WEIGHT
Unit Dimensions (W x H x D) 435 x 78 x 296 mm (Gross)*
17 / x 3 / x 11 / inches
Net Weight 5.8 kg (12.8 lbs)
Shipping Weight 9.8 kg (21.6 lbs)
* - Gross dimensions include feet, extended buttons and rear panel terminals.
Specications are subject to change without notice.
For updated documentation and features, please log onto www.NADelectronics.com for the latest information about M51.
DETAILS & WAVEFORMS ON SYSTEM TEST & DEBUGGING
MCU Y1003 8MHz
HDMI Y1002 28.6363MHz
AK4118
Y1001 11.2896MHz
LRCK 96K
BCK
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