Harman Kardon BDS 280S - Page 17

5-5 Trouble shooting Chart
5.1/2.1 channel no audio output
Reconnect well
check the system weather is
headphone mode or not, pull
out the 6pin cable XP26 from
USB to Main board
Replace the USB board
Yes
No
Go
Check the 10pin/4pin cable is
connect well from Main board to
AV board
5.1/2.1 channel no audio
out
p
ut
Yes
Replace the Main board
No
Check +32V at XP27 on
Main board is OK
Yes
Refer to Power supply board
Check XP27 is short to
GND
No
Replace the Main board
Yes
No