Bedienungsanleitung NAD M22 (Seite 7 von 12) (Englisch)

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1 BALANCED

• Use the BALANCED analog audio input of the M22 if the external

source to be connected has BALANCED audio output. Superior

audio quality is ensured with the distinctive noise reduction

capability of BALANCED connection with XLR jacks.

• With BALANCED as the selected audio input, ensure that the SELECT

switches for both L (Left) and R (Right) channels of ANALOG AUDIO

INPUT are set to BALANCED.

PIN CONFIGURATION OF BALANCED XLR JACK

Pin 1: Ground

Pin 2: Positive (signal live)

Pin 3: Negative (signal return)

IMPORTANT NOTES

• Always turn OFF the M22 and other components in the system before

connecting or disconnecting anything to the BALANCED audio input

jacks.

• Before switching ON the M22 from standby mode for the rst time, make

sure that the volume control of the external source is set to minimum

level position. This prevents inadvertently beginning a session at

excessive volume.

2 SINGLE-ENDED

• Use single-ended analog audio input for sources (preampliers or

processors) that are not equipped with BALANCED analog audio

output.

• With SINGLE-ENDED as the selected audio input, ensure that the

SELECT switches for both L (Left) and R (Right) channels of ANALOG

AUDIO INPUT are set to SINGLE-ENDED.

3 SELECT

• Use this switch to select the type of analog audio input.

• SELECT switch settings

Right position: SINGLE-ENDED input is selected.

Left position: BALANCED input is selected.

4 PROTECT

• When the M22 goes to protect mode, the PROTECT LED will turn

red.

PROTECT LED INDICATOR COLORS

CONDITION PROTECT LED COLOR

POWER INDICATOR

(NAD LOGO) COLOR

Normal operation Green Bright/white

Overheat or short circuit Red Red

PROTECT MODE

If the PROTECT LEDs turn red, this indicates that the protection circuitry

of the M22 had been engaged. Immediately press the Standby button,

turn o Power switch and then unplug the mains power cord from the

mains power source. Undertake the following

a Check if all speaker wires are connected correctly and that none of

the wires are damaged, causing a short circuit.

b Another cause may be excessive heat build-up inside the amplier.

Make sure there is adequate ventilation around the amplier and

that none of its ventilation slots, top or bottom are blocked. After

the M22 has cooled down, it will function normally again.

c Do not attempt to use the M22 if the PROTECT LED or Power

indicator remained illuminated in red despite the checks mentioned

above. Bring the M22 to an authorized NAD service center for

proper inspection, testing and consequent repair if necessary.

IDENTIFICATION OF CONTROLS

REAR PANEL

GND

POWER

RIGHT SPEAKERS

ANALOG AUDIO INPUT

LEFT SPEAKERS

R L

ANALOG AUDIO INPUT

100-240V 50/60Hz

+12V

TRIGGER

LED

LEVEL

11 3 34 45 6 7 98 10 11

1 12 2

ATTENTION!

Ensure that the M22 is unplugged before making any connections. It is also advisable to power-down or unplug all associated components while making

or breaking any signal or AC power connections.

ENGLISHFRANÇAISESPAÑOLITALIANODEUTSCHNEDERLANDSSVENSKAРУССКИЙ

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