Harman Kardon ONYX - Page 12

5-5 Trouble shooting Chart
BT cannot work
AUX or airplay cannot work analyze same to BT
BT cannot work
Go
Ye
s
Connect BT ANT to main board
NO
Replace U19
No
Yes
Get close to DUT,Check bt cannot work
Check U19 is normal
Replace U13 with AK7742
Check airplay work ok or not
Instead of U10 (BTM153)
No
Yes
Harman Kardon
ONYX Service Manual
Page 12 of 34