Motorola APX 5000 Service Manual page 157

Troubleshooting Charts: Bluetooth Failure
Bluetooth Failure – Page 3 (Pairing Issue)
3
BT Icon
with circle
seen?
No
Were any
LCD error
messages
displayed?
No
Open radio and press down
on expansion board near LF
coil. Recycle radio power.
1
Pairing was successful. If
Yes
there were no audio tones
during pairing, they may have
been disabled in the codeplug.
Was audio
heard from
headset?
No
6
Using an oscilloscope, verify
the Bluetooth signals are within
the expected voltages and
timings by measuring the test
points from table 6-6 and using
the waveforms in sections 6.17
Yes
and 6.18 to verify the signals
4
New issue, try replacing expansion board.
If issue persists, reload expansion board
SW using an SREC file and flashzap.
If issue still persists, contact engineering.
Yes
Resolved
7
are expected.
Were
measured signals
as expected?
Yes
No
Replace
expansion board.
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