NAD M10 Service Manual

Also See for M10:

Service manual (18 pages)

Owner's manual (14 pages)

Quick setup manual (2 pages)

Table of Contents

Contents

1 SPECIFICATIONS
2 REAR VIEW
3 TOP AND FRONT VIEW
- 3.1 STATUS INDICATOR (NAD LOGO)
- 3.2 DISPLAY (TOUCH PANEL DISPLAY)
4 DISASSEMBLY INSTRUCTIONS
5 WIRING DIAGRAM
6 WIRING DIAGRAM PARTS LIST
7 BLOCK DIAGRAM
8 START UP SEQUENCE
9 TROUBLE SHOOTING
10 WAVEFORMS ON SYSTEM TEST & DEBUGGING
11 EXPLODED VIEW
12 EXPLODED VIEW PARTS LIST
13 PACKING DIAGRAM
14 PACKING PARTLIST
15 SAFETY INFORMATION
16 Documents / Resources
- 16.1 Download manual

NAD M10 Service Manual

SPECIFICATIONS

ALL SPECS ARE MEASURED ACCORDING TO IHF 202 CEA 490-AR-2008 STANDARD. THD IS MEASURED USING AP
AUX 0025 PASSIVE FILTER AND AES 17 ACTIVE FILTER.

GENERAL SPECIFICATIONS

Continuous output power into 8 ohms and 4 ohms	100W (ref. 20 Hz-20 kHz at rated THD, both channels driven)
THD (20 Hz – 20 kHz)	< 0.03% (250 mW to 100 W, 8 ohms and 4 ohms)
Signal-to-Noise Ratio	> 85 dB (A-weighted, 500 mV input, ref. 1 W out in 8 ohms)
Clipping power	> 130 W (at 1 kHz 0.1% THD 8Rx2CH) > 230 W (at 1 kHz 0.1% THD 4Rx2CH)
IHF dynamic power	8 ohms: 160 W 4 ohms: 300 W
Damping factor	> 190 (ref. 8 ohms, 20Hz to 6.5kHz)
Frequency response	±0.6 dB (20 Hz - 20 kHz)
Tone controls	Treble: ±6.0 dB at 20 kHz, Bass: ±6.0dB at 60 Hz
Channel separation	>75 dB (1 kHz), >70 dB (10 kHz)
Input sensitivity (for 100 W in 8 ohms)	Line In: 1.0 V, Digital In: -6.2 %FS
Standby power	0.5W

DAC SECTION

Supported audio file formats	MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS
Hi-Resolution audio formats	MQA, DSD, FLAC, WAV, AIFF
Sampling rate	up to 32 bit/192 kHz PCM
Bit depths	16 – 24

BluOS SECTION

Supported operating systems	Plays music from network shares on the following desktop operating systems: Microsoft Windows XP, 2000, Vista, 7, 8 to current Windows Operating Systems and Mac OS X versions
User interface mobile operating system	BluOS - Free Android and iOS App available online at Google Play and Apple App store
Supported cloud services*	Amazon Alexa, Amazon Music, Spotify, TIDAL, Deezer, Qobuz, HDTracks, HighResAudio, Murfie, JUKE, Napster, Slacker Radio, KKBox, Bugs
Free internet radio*	TuneIn Radio, iHeartRadio, Calm Radio, Radio Paradise
Bluetooth quality	Bluetooth aptX HD built-in
Bluetooth connectivity	Two-Way (Receive and Headphone modes)
Network connectivity	Gigabit Ethernet RJ45, Wi-Fi 5

DIMENSION AND WEIGHT

Unit Dimensions (W x H x D)	215 x 100 x 260 mm 8-1/2 x 3-15/16 x 10-1/4 inches
Shipping weight	5 kg (11 lbs)

*Some features will become available via future software update
**Supported cloud services and free internet radio are subject to change without notice.
***Gross dimension includes feet and extended rear panel terminals.

Specifications are subject to change without notice.

REAR VIEW

IR IN
+12V TRIGGER OUT
ANALOG IN 1-2
PRE OUT
SUBW (SUBWOOFER) 1, 2
OPTICAL IN/COAXIAL IN
HDMI ARC
SERVICE
LAN/USB
STANDBY BUTTON
AC MAINS INPUT
BRIDGE MODE
SPEAKERS

TOP AND FRONT VIEW

STATUS INDICATOR (NAD LOGO)

TOP VIEW - STATUS INDICATOR (NAD LOGO)

This indicator will be amber when M10 is in standby mode.
When M10is powered up from standby mode, this indicator will change from amber to solid white.

Table of the color blink codes of the NAD logo indicator and their corresponding descriptions.

BLINK CODES	DESCRIPTION
Flashing red	Upgrade mode
Flashing red	Powering up, rebooting, booting up
Solid red	Gannot boot up; drive error
Solid white	Indexing
Solid white	Connected to network - ready to use with Blu0S App

DISPLAY (TOUCH PANEL DISPLAY)

FRONT VIEW - DISPLAY (TOUCH PANEL DISPLAY)

Display visual information about current music or media source, settings or menu options.
Touch control functions are also displayed depending upon menu option selected.

DISASSEMBLY INSTRUCTIONS

Remove the rubber foot strips 1~2 from the bottom plate.
Remove the 4 x long screws 3~6 from the bottom plate.
Then the unit can be opened.

WIRING DIAGRAM

WIRING DIAGRAM PARTS LIST

BLOCK DIAGRAM

START UP SEQUENCE

TROUBLE SHOOTING

Power won't turn on, logo LEDs or LCD won't light	Please check the J3 cable between NMB board and PSU board if it 's connection loose Please check the voltage of pin 3 of J3 on NMB board, it should be +5Vdc. Please check the fuse(F1) if open on psu board Disconnect the cables between PSU and NCORE/NMB board, and then supply the AC(230V) to PSU board, check the voltage of C25 and C928, it should be 320Vdc and 33Vdc, at last please check voltage of J1(it should be 5Vdc). If above voltage are correct, please check impedance for the +5V_SB and +5VD of J3 on NMB board to GND, if the value is normal, and than reconnect the cables. Please check the voltage of pin2 of U39 on NMB board(it should be +3.3Vdc and check the frequency of Y4. If above voltages and frequency are correct, please reprogram the FW.
LCD won't light(but unit can turn on)	Please check the LCD Brightness setting Please check the voltage of J2 on LCD interface board, it should be 5Vdc. If has 5Vdc, please check the frequency of PWM_B/L pin, it should be ~78.13KHz. At last please check the LED -A of U7, it should be +8.3Vdc. If above voltages and frequency are correct, maybe the problem on the LCD module.
No display on LCD(but there are LCD backlight)	Please check the connection between NMB board and LCD interface board.(e.g. J24 on NMB board) Please check the voltage the pin 1 of J24(3.3V_LCD) and Pin2 of J24(3.3V_SB) on NMB board
No Trigger Out	Please check the voltage of the net +12_vcc(it is +12Vdc) and net trigger_out1(it is 3.3Vdc)
LCD won't light	Please reprogram the FW by Service jack. If it can't be solved, please check following items: Please check the Net +5V_SB (it's +5Vdc) and net+3.3V_SB of U39 on NMB board. Please check the frequency of Y4(it's 8MHz), check the voltage of pin51 of U40(net NMB_STBY, it's 0V),and the pin 5 of J3 is +3.7Vdc on NMB board, this pin is control the M2 relay ON and OFF. The PSU will supply main +5VD to NMB board if the M2 relay is ON.
No output at Power amp and Pre out(but Logo LEDs and LCD are light)	Please check the net HYPEX_ONOFF(it's 3.3V) on NMB board, this pin will go to Q1/Q4/Q2 and then control RL1 ON and OFF. This relay is control the AC main power to NCORE(AMP module) Please check the +/-22V on pin1 and pin2 on PSU board. Please check the +/-12Vdc on the U1 and U3 on PSU board Please check the voltage on the pin1 of J20(it is +12V), pin 2 of J20(it is 3.3v) on SPK(speak output board) If above voltages are correct, please check the signal on DAC and PRE OUT section(please see the schematic of NMB for the PERIPH-ADC/PERIPH-DAC1/PERIPH-DAC2) and M10 PSU schematic.
Bridge is no output	Please check the voltage of the net +5VD(R16) is +5VDC on PSU board, the switch S2301 is ON, the net BRIDGE_MODE_DET is 5Vdc go to pin24 of U1 on NMB, and then the net HYPEX_L_RELY is 3.3V to control the RL4 and let the power amp working on bridge mode.
Can't play the music with flash memory devices from USB A jack	Please check the voltage of the net #OC_VBUS_D4(it's 3.3V) and net USB_PWREN4(it's3.3V). Please check the voltage on the pin 1A of J5, it should be 5V. If above the voltages are correct, please check the frequency(Y107) is 24MHz when insert flash memory devices.