Read Harman Kardon ONYX STUDIO 2 Service Manual online
Fault Finding Chart of “board level Bluetooth failed”
Power fail
Bluetooth fail
No
Yes
Change U300
J300, L300 well
soldering?
Rework J300 or L300
Analysis by vendor
Figure 3.8.3
Fault Finding Chart of “System level RSSI failed”
Check if antenna
connect well
RSSI fail
No
Re-assembly
antenna
Check if antenna
material is well
Change antenna
Yes
Change PCB
Figure 3.8.4
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