Nokia 5510 - Page 88

NPM-5
UI Module Troubleshooting PAMS Technical Documentation
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Internal mic
malfunction
Replace a good
system connector
and test it
Is the new
mic working?
Replace the
system connector
NO
YES
Check FL601 and
contact of system
connector (J603)
to the UI module
Check B2B connector. Ensure
the connectivity of MIC+, MIC-
(Pin35 and pin 34 of J301) to
the UI module