Powering Procedures
Power Supply
Powering On - First, make sure any headphones are disconnected from N22H and the
Headphones Level Control [1] is reduced to minimum. Locate the 2.1mm barrel connector
on the end of the included 9v DC power supply and connect that to the Power Inlet [11].
Then, connect the plug of the power adapter to the socket on the wall.
N22H powers up automatically when the correct power requirements are detected at its
Power Inlet [11]. N22H is now ready for use and you may connect your headphones.
Powering Off - First, make sure any headphones are disconnected from N22H and the
Headphones Level Control [1] is reduced to minimum. Then disconnect the power supply
from the wall or switch off the power supply to your N22H.
Battery
Powering On - First, make sure any headphones are disconnected from N22H and the
Headphones Level Control [1] is reduced to minimum. Remove the Battery Cover [9] by
twisting the spring-loaded thumb screw anticlockwise and remove the cover to reveal the
9v battery fly lead. Carefully connect the Battery terminals to the push-fit battery
connector, tuck the loose leads back inside N22H, and locate the battery into the cavity.
Once the battery is secure and the fly lead is hidden away in N22H, refit the Battery Cover
[9] and tighten the thumb screw.
Note:
Please be careful when pulling on the battery fly lead when fitting the battery.
Excessive force on the connector could damage the wires of the connector or
PCB. When installing the battery, please ensure that the terminals are the
correct way around before push-fitting the battery. Attempting to connect the
wrong polarity could cause irreparable damage to N22H and is not covered
under warranty.
Lastly, connect your headphones to N22H’s Headphone Output [2] and N22H will power up
automatically. N22H is now ready for use.
Powering Off - First, make sure the Headphones Level Control [1] is reduced to minimum.
Carefully remove your headphones from the Headphone Output [2] and N22H will switch
off automatically when the headphone jack is removed.
Note:
Please follow the safe sequences above carefully in order to prevent any
unwanted pops or power spikes causing damage to N22H or downstream audio
components including speakers and headphones. Damage caused as a result of
incorrect procedures is not covered under warranty.
