SB 30 (serv.man5) - Harman Kardon Audio Service Manual (repair manual). Page 6

5

SB 30

ENGL

IS

H

Connections and Controls

Power 

Button 

and 

Power 

LED

Surround 

Mode 

Button

Volume 

Down/Up 

Buttons

Source 

Selector 

Button

Dolby 

Volume 

Button

Power button: When the soundbar is in the Standby mode (the Power LED is amber), 

pressing the Power button will turn on the soundbar. When the soundbar is on (the Power 

LED is blue), pressing the Power button will put it into the Standby mode.
Power LED: The Power LED will display different colors and patterns to indicate the 

soundbar’s status:

•  Power LED is constantly blue: The soundbar is on.
•  Power LED is flashing blue: The soundbar is muted.
•  Power LED is amber: The soundbar is in the Standby mode.
•  Power LED is off: The soundbar is off.

Surround Mode button: Pressing the Surround Mode button cycles the soundbar’s audio 

output through the following three surround modes: Stereo > Virtual > HARMAN Wave > 

Stereo, etc. The active surround mode is indicated by the soundbar Status LEDs (see 

Soundbar Status LEDs, below). See Surround Modes, on page 11, for information about 

the surround modes.
Volume Down/Up buttons: Press the “–” button to decrease the volume; press the “+” 

button to increase the volume.
Source Selector button: Pressing the Source Selector button changes the active input 

source among the Optical Digital, Coaxial Digital and Analog input connectors. The active 

input source is indicated by the soundbar Status LEDs (see below).
Dolby

 Volume button: Pressing the Dolby Volume button cycles the Dolby Volume 

setting between off, low and high. The active setting is indicated by the soundbar Status 

LEDs (see below). See 

Dolby Volume, on page 12, for more information about Dolby 

Volume.

The soundbar has three LED indicators located behind the grille, as shown in the 

illustration below.

Status 

LEDs

The status LEDs light up in different colors and numbers to indicate the following:
Active input source (white LEDs)
1 LED = Optical Digital Input
2 LEDs = Coaxial Digital Input
3 LEDs = Analog Input
Active surround mode (blue LEDs)
1 LED = Stereo mode
2 LEDs = Virtual surround mode
3 LEDs = Wave surround mode
(See 

Surround Modes, on page 11, for information about the surround modes.)

Room Size setting (green LEDs)
1 LED = Small room
2 LEDs = Medium room
3 LEDs = Large room
(See 

Surround Modes, on page 11, for information about the Room Size setting.)

Dolby Volume setting (red LEDs)
1 LED = Off
2 LEDs = Low
3 LEDs = High
(See 

Dolby Volume, on page 12, for information about Dolby Volume.)

NOTE: The Status LEDs will turn off after five seconds of no button presses.

Harman Kardon

SB 30 / 230V Service Manual

Page 6 of 43