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19  Damage Requiring Service 

- Unplug this product from the wall outlet 

and refer servicing to qualified service personnel under the following 
conditions:

a) 

When the power supply cord or plug is damaged.

b) 

If liquid has been spilled, or objects have fallen into the product.

c) 

If the product has been exposed to rain or water.

d) 

If the product does not operate normally by following the operating 
instructions. Adjust only those controls that are covered by the 
operating instructions as an improper adjustment of other controls 
may result in damage and will often require extensive work by a 
qualified technician to restore the product to its normal operation.

e) 

If the product has been dropped or damaged in any way.

f) 

when the product exhibits a distinct change in performance-this 
indicates a need for service.

20 Replacement Parts 

- When replacement parts are required, be 

sure the service technician has used replacement parts specified 
by the manufacturer or have the same characteristics as the 
original part. Unauthorized substitutions may result in fire, electric 
shock, or other hazards.

21  Safety Check 

- Upon completion of any service or repairs to this 

product, ask the service technician to perform safety checks to 
determine that the product is in proper operating condition.

22  Wall or Ceiling Mounting 

- The product should be mounted to a wall 

or ceiling only as recommended by the manufacturer.

23 Heat 

- The product should be situated away from heat sources such as 

radiators, heat registers, stoves or other products (including amplifiers) 
that produce heat.

24 Headphones 

- Excessive sound pressure form earphones and 

headphones can cause hearing loss.

25  Battery Disposal 

- When disposing of used batteries, please comply 

with governmental regulations or environmental public instruction’s 
rules that apply in your country or area. Batteries (battery pack or 
batteries installed) must not be exposed to excessive heat such as 
sunshine, fire or the like. 

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS 
PRODUCT TO RAIN OR MOISTURE.

CAUTION

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, 
FULLY INSERT.

THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN 
AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER 
TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” 
WITHIN THE PRODUCT’S ENCLOSURE THAT MAYBE OF 
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC 
SHOCK TO PERSONS.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS 
INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT 
OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN 
THE LITERATURE ACCOMPANYING THE APPLIANCE.

CAUTION

Changes or modifications to this equipment not expressly approved by 
NAD Electronics for compliance could void the user’s authority to operate 
this equipment.

CAUTION REGARDING PLACEMENT

To maintain proper ventilation, be sure to leave a space around the unit 
(from the largest outer dimensions including projections) that is equal to or 
greater than shown below.

 

Left and Right Panels: 10 cm

 

Rear Panel: 10 cm

 

Top Panel: 10 cm

IMPORTANT SAFETY INSTRUCTIONS

 

 

 

 

 

 

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Summary of Contents for M51

Page 1: ...ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ Owner s Manual M51 Direct Digital DAC ...

Page 2: ...y one way This is a safety feature If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the polarized plug 13 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed up...

Page 3: ...s radiators heat registers stoves or other products including amplifiers that produce heat 24 Headphones Excessive sound pressure form earphones and headphones can cause hearing loss 25 Battery Disposal When disposing of used batteries please comply with governmental regulations or environmental public instruction s rules that apply in your country or area Batteries battery pack or batteries insta...

Page 4: ...municipal waste End users are exhorted not to dispose waste batteries as unsorted municipal waste In order to achieve a high level of recycling waste batteries discard waste batteries separately and properly through an accessible collection point in your vicinity For more information about collection and recycling of waste batteries please contact your local municipality your waste disposal servic...

Page 5: ...e most of your investment in the M51 One more thing We urge you to register your M51 ownership on the NAD Worldwide Web site http NADelectronics com salon For warranty information contact your local distributor NAD SHALL NOT BE HELD LIABLE FOR ANY TECHNICAL OR USER INTERFACE DISCREPANCIES IN THIS MANUAL THE M51 OWNER S MANUAL MAY BE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE CHECK OUT THE NAD WEBSITE ...

Page 6: ...tions settings and indicators Unlock is shown among the information displayed if no source input is connected to the particular Source If a connected source is detected the sampling rate will be displayed 4 REMOTE SENSOR Point the M50 remote control at the remote sensor and press the buttons Do not expose the remote sensor of the M51 to a strong light source such as direct sunlight or illumination...

Page 7: ...h HDMI input NOTE HDMI 1 2 and HDMI VIDEO OUT function only as direct pass through WARNING Before connecting and disconnecting any HDMI cables both the M51 and the ancillary source must be powered OFF and unplugged from the AC outlet Failure to observe this practice may cause permanent damage to all equipment connected via HDMI sockets 7 UPGRADE M51 may need a software update to be in step with th...

Page 8: ...ds of time such as when on vacation switch off the POWER switch With POWER switched off neither the front panel Standby button nor remote control s ON button can activate the M51 12 AC MAINS INPUT The M51 comes supplied with two separate detachable mains power cord Select applicable mains power cord pertinent to your region s requirement Before connecting the plug to the mains powers source connec...

Page 9: ...file or whole disc RAND Play tracks files in random order k Open or close disc tray g Stop playback Pause playback temporarily 0 Go to next track or file 9 Go to the beginning of current or previous track or file 7 8 Not applicable for current NAD CD Player models 4 Start playback 0 to 9 number buttons Direct entry of track or file number The following M50 Remote Control buttons are not applicable...

Page 10: ...lume control of the separate amplifier the M51 is linked into If Volume Setup is set to Fixed remote control s VOL 5 6 will have no effect and effectively disabled Variable When set to Variable the Volume level is directly adjustable using the remote control s VOL 5 6 button Correspondingly audio output from M51 can be adjusted by using the volume control of the separate amplifier the M51 is linke...

Page 11: ...ries are flat or incorrectly inserted Check batteries Infrared receiver IR window of M51 or IR transmitter of the remote control is obstructed Check IR windows and ensure clear line of sight from remote to M51 M51 front panel is in very bright sunlight or ambient light Reduce sunlight room lighting Remote control is set to M50 Digital Music Player remote control codes Switch remote control codes t...

Page 12: ... 16W INPUT OUTPUT TERMINALS INPUT AES EBU Coaxial Optical HDMI x 2 USB Audio Class 2 0 OUTPUT HDMIVIDEO 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 NetWeight 5 8 kg 12 8 lbs ShippingWeight 9 8 kg 21 6 lbs Gross dimensions include feet extended buttons and rear panel terminals Specifica...

Page 13: ...13 ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ ...

Page 14: ...ED All rights reserved NAD and the NAD logo are trademarks of NAD Electronics International a division of Lenbrook Industries Limited No part of this publication may be reproduced stored or transmitted in any form without the written permission of NAD Electronics International M51_eng_OM_v08 05 12 ...

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