Accessory Faults 2 - Nokia NPL-4 Series Troubleshooting Instructions

NPL-4/5/RM-104
Troubleshooting Instructions

Accessory faults 2

Accesory if
faults
ACI
accessory detected
and working?
Yes
END
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Insert stereo
headset
No
(HDS-3)
Wait 5s
Measure Vout
levelPopPort connector
pin 4.
Is it ~2.8V
Yes
Reinsert
headset
Ref. picture
below. Is the start up
sequency like it ?
Yes
No
Audio OK ?
Nokia Customer Care
Check PopPort
connecor pin
4(Vout)) and line to
systemboard, L107,
C112, R103 and
No
C290.
If ok change
UEMEk.
Retest
Check PopPort
connecor pin 3 (ACI)
and line to
systemboard,
No
L106,R103, R102,
R109, C103. If OK
change UEMEk.
Retest.
Check C107, C108,
C109, C117, L103,
L104, C113, C114,
C118, C119, R105,
R106, R107, R108,
R164,R165, R166,
R167, C157, C158
Audio fault
Issue 2 05/05