Audio Note IO Limited - Manual (Page 14)

Once the initial power supply unit set up has been completed and the IO Limited has
been correctly installed in your tonearm, you are ready to begin operation.
Mains On
This switch is used to turn the Power Supply Unit on, and is
located on the right hand side of the front fascia. Turn the
switch clockwise / right. The red ʻpowerʼ LED situated below
the ʻMains Onʼ switch should glow RED.
THE POWER SUPPLY UNIT SHOULD BE SWITCHED OFF
WHEN NOT IN USE FOR AN EXTENDED PERIOD (MORE
THAN A FEW DAYS).
Cartridge On
This switch is used to apply the required voltage to the
cartridge. When you wish to use the Io Limited (to play music!),
turn the switch clockwise / right. There are two reasons for this
switch; firstly, it allows the power supply unit to remain
polarized even when the cartridge is not in use (Cartridge On
switch in the ʻOFFʼ / anticlockwise position), and secondly, it
allows the supply to be disconnected when not in use, which
prolongs the life of the Io Limited.
THE CARTRIDGE SHOULD ALWAYS BE SWITCHED OFF
WHEN NOT IN USE!
Meter On
Located on the lower left hand side of the front fascia, this
switch is used to activate the test meter, positioned on the front
of the power supply unit. Turn the switch clockwise / right.
Meter
The meter allows the user to monitor the approximate voltage
being supplied to the cartridge. With the cartridge turned on
(see Cartridge On above) and the meter turned on
(see Meter On above) the meter should read approximately
1.2 V DC to 1.4 V DC. With the cartridge turned off, the meter
will show a higher reading.
IF THE METER SHOWS A READING GREATER THAN 1.2V
DC TO 1.4V DC WHEN THE CARTRIDGE IS SWITCHED ON,
SWITCH THE POWER SUPPLY UNIT OFF IMMEDIATELY
AND CONTACT YOUR AUTHORIZED AUDIO NOTE (UK)
DEALER.
OPERATION