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BDS 280

Troubleshooting

20

Troubleshooting

Problems

Solutions

The receiver won’t power up (the Power indicator is not lit):

•  Check that the receiver’s Power cord is properly plugged into the 

receiver’s AC Power connector.

•  Check that the Power cord is plugged into a working AC outlet. If the 

outlet is controlled by a switch, make sure the switch is set in the “On” 
position.

•  Check that the receiver’s Main Power switch (located on the rear panel) 

is in the “On” position.

Sound plays through the speakers, but there is no TV picture:

•  Check the HDMI connection between the receiver and the TV.
•  Check the HDMI connection or Component Video connection between 

the source device and the BDS receiver.

•  heck that the TV is turned on and is set to the proper input source.
•  Unplug the HDMI cable from the TV and plug it back in again.

There is no sound coming from just the subwoofer:

•  Check that the subwoofer’s Power cord is plugged into a working AC 

outlet.

•  Check that the subwoofer’s Power switch is in the “On” position.
•  Check that the Subwoofer Level control is not turned all the way down 

(fully counter clockwise).

•  Check that the audio connection between the receiver and the 

subwoofer has been properly made.

•  Check the receiver’s Settings: Configuration menu to make sure that the 

subwoofer volume has not been set at 10dB.

There is a constant hum in the sound:

•  Check that all input cables are plugged all the way into their connectors.
•  Check that all cables are at least 10 ft (3.3m) from fluorescent lights.
•  Check that all cable connectors are clean. If necessary, wipe them with a 

cloth slightly moistened with alcohol.

•  Set the subwoofer’s Power switch to “Off. If the hum goes away, there 

is a ground loop between the subwoofer and the receiver. Plugging 
the subwoofer’s Power cord into the same AC outlet that the receiver is 
plugged into should eliminate the ground loop.

Harman Kardon

BDS 280 + 580 Service Manual

Page 21 of 87

Troubleshooting

21

BDS 280

Problems

Solutions

The disc does not play:

•  Check that the disc is inserted correctly (label side up).
•  Check that the disc is the correct type: BD Video (single-layer or double-

layer),

•  DVD-Video, DVD+R/+RW, DVD-R/-RW, CDDA (CD digital audio), CD-R/

RW. Other disc types will not play.

•  Check that the disc surface is clean and not scratched.

There is noise or other interference in the picture while playing a Blu-ray Disc 
recording or DVD:

•  Check that the disc surface is clean and not scratched.

The sound and picture are out of sync when playing to an Aux source:

•  Press the Options button and perform the Lip Sync adjustment to bring 

the sound and picture into synchronization.

Cannot tune in radio stations:

•  Check that the FM antenna is correctly connected.
•  Adjust the antenna’s position. If necessary, use a powered FM antenna 

or an outdoor FM antenna.

The receiver does not respond to remote-control commands:

•  Replace all three remote-control batteries with fresh ones, and make 

sure that they are installed with the correct polarity.

•  Hold the remote closer to the receiver.
•  Check that the receiver’s remote sensor is in the line of sight of the 

remote control.

The remote does not control programmed components (TV or video):

•  Check that you have pressed the remote’s Aux button before trying to 

operate the component.

•  Re-program and/or re-teach the component’s commands into the 

remote.

The O symbol appears on the screen when you press a remote-control button:

•  The selected function is not permitted at the time the button is pressed.

The receiver does not respond to commands, or it behaves in an erratic way:

•  Unplug the receiver’s Power cord from the AC outlet, wait 30 seconds, 

then plug it back in.

Harman Kardon

BDS 280 + 580 Service Manual

Page 22 of 87

4‐1 

 

Software Upgrade 

 
1.The upgrade image file name shall be:   
BDS 280: HK_BDS280.bin   
BDS 580: HK_BDS580.bin   
 
2. BDS has two kinds of upgrading method: 
 
2.1: Use USB to upgrade: 
 

1) Create a new folder which name “ UPG” in the root directory of the USB,and copy 

the upgrade file into the “UPG” folder; 
 

2) Plug in the USB; 

3)Press “HOME” button from remote control to entering the HOME menu, choose the 

“Setting”  option from HOME  menu,  and then choose “System” Æ”System  upgrade” 
Æ

”USB”  in sequence, then press “OK” button fr

om  remote control, BDS will  start  to 

upgrade. 
 
2.2: Upgrade online: 
 

  1) Please ensure that your network is smooth.(Wired or wireless); 

   2)Press “HOME” button from remote c ontrol to entering th e HOME menu, choos e 

the  “Setting” option from HOME   menu, and then  choose  “System”Æ”System  upgrade” 
Æ

”internet” in sequence, then  press “OK” button  from remote control, BDS will start to 

upgrade. 
 

Harman Kardon

BDS 280 + 580 Service Manual

Page 23 of 87

5-1                                                        Trouble shooting Chart 

 

 
 

 
 

Power  on le d  doesn't 
work   

GO 

Switch 

performance 

check 

OK 

Check  the c able  XP504  is 
connect  well  to  Main  board 
XP6

 

Change switch

 

NG

Reconnect the cable

NG

Refer to Power supply board part

 

NG

Check+5V,+12V,VCC_D   
voltage on the power and 
Main board

 

OK 

OK 

Replace the LED25---LED31

 

 

Check  the po wer  on led  
control circuit is OK

 

 

Replace the FB

NG

OK 

Harman Kardon

BDS 280 + 580 Service Manual

Page 24 of 87