Read Harman Kardon BDS 535 Service Manual online
5-5 Trouble shooting Chart
5.1/2.1 channel no audio output
Reconnect well
Yes
No
Go
Check the 6pin/12pin cable is
connect well from Main board to
AV board
5.1/2.1 channel no audio
output
Replace the Main board
Check +34V at XP607 on
Main board is OK
Yes
Refer to Power supply board
Check XP27, XP30 is
short to GND
No
Replace the Main board
Yes
No
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