Harman Kardon AURA STUDIO Service Manual ▷ View online
Trouble shooting Chart
5-2
Usb can not work
Usb can not work
Go
Yes
No
No
Reconnect or replace the cable to
ok.
Check the input pcb board.
Replace the old with the new input
board to the EUT working.
Check the 14pin FFC cable connector
normal?
Check the USB board XP7
Replace the input board.
Yes
The USB communication with U14 is
disconnected, replace it
YES
No
Check the output of USB socket P1
YES
NO
OK
Replace P1
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