6FRONT PANEL CONTROLS
1 Main Power Switch: Press this button
to apply power to the HK 3370.When the
switch is pressed in, the unit is placed in a
Standby mode, as indicated by the amber LED
3 surrounding the System Power
Control 2.This button MUST be pressed in
to operate the unit.To turn the unit off and pre-
vent the use of the remote control, this switch
should be pressed until it pops out from the
front panel so that the word “OFF” may be
read at the top of the switch.
NOTE: In normal operation this switch is left in
the “ON” position.
2 System Power Control: When the
Main Power Switch
1
is “ON,” press this
button to turn on the HK 3370; press it again
to turn the unit off. Note that the Power
Indicator surrounding the switch
3
will
turn green when the unit is on.
3 Power Indicator: This LED will illumi-
nate in amber when the unit is in the Standby
mode to signal that the unit is ready to be
turned on.When the unit is in operation, the
indicator will briefly turn red, and then change
to green.A red indicator during normal opera-
tion means that the unit is in the Protect mode,
and should be turned off and then checked for
a possible speaker-wire short circuit.
4 Headphone Jack: This jack may be
used to listen to the HK 3370’s output through a
pair of headphones. Be certain that the head-
phones have a standard 1⁄4" stereo phone plug.
5 Mute: Press this button to momentarily
silence the speaker output of the HK 3370.
6 Speaker 1 Button: Press this button to
turn the speakers connected to the Speaker 1
output terminals ‡ on or off.
7 Speaker 2 Button: Press this button to
turn the speakers connected to the Speaker 2
output terminals ° on or off.
Front Panel Controls
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