HK 3370 (serv.man16) - Harman Kardon Audio User Guide / Operation Manual. Page 5

5 FRONT PANEL CONTROLS

1

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 

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

When the

1 is “ON,” press this

button to turn on the HK 3370; press it again
to turn the unit off. Note that the 

surrounding the switch 3 will 

turn green when the unit is on.

3

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

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

Press this button to momentarily

silence the speaker output of the HK 3370.

6

Press this button to

turn the speakers connected to the 

output terminals ‡ on or off.

7

Press this button to

turn the speakers connected to the 

output terminals ° on or off.

7

9 !

#

%

&

(

8

)

@ $

^

*

2

1

3

4

5

6

1 Main Power Switch
2 System Power Control
3 Power Indicator
4 Headphone Jack
5 Mute
6 Speaker 1 Selector
7 Speaker 2 Selector
8 Phone Input Selector
9 T-Mon Input Selector

) Tuning Button
! Tape Input Selector
@ Preset Scan
# CD Input Selector
$ Aux Input Selector
% Preset Selector
^ Dimmer Button
& FM/AM Selector
* FM Mode Selector

( Sleep Button
Ó Bass Control
Ô Treble Control
 Balance Control
Ò Volume Control
Ú Volume/Mute Indicator
Û Information Display
Ù Speaker Selection Indicators
ı Remote Sensor Window