BDS 580S (serv.man2) - Harman Kardon Audio Service Manual (repair manual). Page 7

BDS 280S/580S Rear Panel Controls and Connections

7

BDS 280S/580S

The following are the controls available in the rear panel of the 

BDS 280S/580S sytem:

1. 

Main Power Switch

2.

AirPlay 

Antenna

3.

Speaker 

outputs

4. 

Optical Digital Audio (S/PDIF) inputs

5.

Trigger 

Output

6. 

AUX 1 input and AUX 2 input

7.

Subwoofer 

output

8.

Wi-Fi 

Antenna

9. 

FM radio antenna output

10. 

Coaxial digital audio (S/PDIF) input

11. 

IR Remote input

12. 

HDMI output (ARC)

13. 

HDMI 1/MHL input

14. 

HDMI 2 input

15. 

HDMI 3 (Apple) input

16.

USB 

input

17.

Network 

Connector

18.

WPS 

button

19. 

AC Power input

1. Main Power Switch: This mechanical switch turns the BDS system’s power supply 
ON or OFF. After you have made and verified all connections, set this switch to the ON 
position. During normal use, you will usually leave this switch set to ON; it cannot be 
turned ON or OFF using the remote control. To conserve energy when you are not using 
the system for an extended period of time, set this switch to OFF.

2. AirPlay Antenna: Connect the antenna accessory labeled Antenna 1 here for
improved Wi-Fi reception. Connect the antenna accessory for the AirPlay playback from 
the iPad/iPod/iPhone.

3. Speaker Outputs: Use the speaker wires supplied with the speakers to connect the 
speakers to the proper terminals.

• 

The BDS 280 system has two outputs for left and right speakers.

• 

The BDS 580 system has five outputs for center, front left, front right, sur-
round left and surround right speakers.

4. Optical Digital (S/PDIF) Inputs: Connect the optical digital output of an audio
source component here. The signal may be a Dolby Digital, DTS® or standard PCM digital 
audio.

5. Trigger Output:  This connector provides 12V DC whenever the system is ON. It can 
be used to turn on and off other devices such as a powered subwoofer.

6. AUX 1 and AUX 2 Input: Use these connectors to connect to an audio source device
(such as a tape deck). Do not connect a turntable to these connectors without a phono 
preamp.

7. Subwoofer Output: Use a mono RCA audio cable to connect this jack to a powered 
subwoofer’s line-level input or LFE jack.

8. Wi-Fi Antenna: Connect the antenna accessory labeled Antenna 2 here for
improved Wi-Fi reception.

9. FM Radio Antenna Output: Connect the supplied FM antenna to this terminal.

10. Coaxial Digital Audio (S/PDIF) Input: Connect the coaxial digital output of an
audio source component here. The signal may be a Dolby Digital bit stream, a DTS bit 
stream or a standard PCM digital-audio bit stream.

11. IR Remote Input: When the IR sensor on the front panel is blocked (for example, 
when the system is installed inside a cabinet); connect an optional IR receiver to the 
Remote IR Input connector.

12. HDMI Output (ARC): Connect the BDS system’s HDMI output to your TV’s HDMI
input. If your TV is 3D capable, then you can watch 3D content in 3D either from the BDS 
system’s built-in disc player or from other 3D-capable source devices connected to the 
BDS system’s HDMI Input connectors (see below). The system’s HDMI output connection 
also contains an Audio Return Channel (ARC) that carries a digital audio signal from 
your TV or video display back to the BDS. It allows you to listen to HDMI devices that are 
connected directly to your TV (such as a digital TV tuner) without making an additional 
connection from the device to the BDS system.

13. HDMI Inputs:  You can connect up to three additional source devices to the BDS
system provided the source devices have HDMI connectors. The HDMI connection 
transmits digital audio and video signals between devices, so you do not have to 
make any additional audio connections for devices you want to connect via an HDMI 
connector. The BDS system will pass 3D video signals from 3D capable HDMI source 
devices to the TV via the HDMI output connector.

Some HDMI inputs have special functionalities:

• 

HDMI 1/MHL input: This input accepts both HDMI and MHL connections. 
MHL can be used with many mobile smart devices to mirror their audio 
and video content on the BDS system while powering the device (check the 
owner’s manual of your device). This connector is also compatible with the 
Roku Streaming Stick, which allows access to Roku services, controlled by 
the BDS remote control.

• 

HDMI 2 input: This input is a generic input port that accepts devices with 
HDMI output. It helps in transmitting encrypted decompressed digital data 
from the BDS system to the device connected to the BDS system.

• 

HDMI 3 (Apple) input: This input accepts any HDMI source device, but if 
connected to Apple products, such as the Apple TV or Mac Mini, the BDS 
remote can be used to control them (this input on the remote control is
pre-programmed with standard Apple device remote commands).

14. USB Input: You can use the USB port to play audio files from an Apple iOS device 
connected to the port, and to play MP3 and WMA audio files and show video and 
picture files from a USB device inserted into the port. Insert the connector or device 
into the USB port oriented so it fits all the way into the port. You may insert or remove 
the connector or device at any time - there is no installation or ejection procedure. You 
can also use the USB port to perform firmware upgrades. If an upgrade for the BDS 
operating system is released in the future, you will be able to download it to the BDS 
system using this port. Complete instructions will be provided at that time.