Vibra Does Not Work; Keyboard Does Not Work; Sim Does Not Work - Nokia NPM-2NX Troubleshooting Manual

NPM-2NX
Troubleshooting
No sound: Try using known good buzzer instead. If still no sound ->change UEM(D200)
Weak sound: Use Audio test in Phoenix to set buzzer parameters(frequency, strength). If
it doesn't effect to the sound level ->change buzzer.

Vibra does not work

Check spring connectors and C307.
No vibration: Try using known good vibra instead. If still no vibration -> change
UEM(D200)
Weak vibration: Use Vibra test in Phoenix to set vibra parameters(frequency, duty cycle).
If it doesn't effect to the magnitude of vibration ->change vibra.

Keyboard does not work

Check that there is no dirt between the dome sheet and the PWB and also check that
Z300 is properly soldered and the cornner mark is located in the right place. If the key-
board still doesn't operate normally -> try to use Keyboard test in Phoenix to see if the
pressed key is identified. If not ->change UPP(D400), then if this does not help, also
change the Z300.

SIM does not work

Check SIM reader's spring connectors, C390 (VSIM 3.0V) and R388. If SIM still does not
work then probably the UEM or the UPP is broken -> change first one component and
check the phone.
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CCS Technical Documentation
Issue 1 07/02