Buzzer Does Not Work; Vibra Does Not Work; Keyboard Does Not Work - Nokia NPC-1 Series Troubleshooting Instructions

NPC-1
Troubleshooting Instructions

Buzzer does not work

Check spring connectors and C306.
• No sound: Try using a known good buzzer instead. If there is still no sound,
change the UEM (D200)
• Weak sound: Use the Audio test in Phoenix to set the buzzer parameters (fre-
quency, strength). If it does not effect the sound level, change the buzzer.

Vibra does not work

Check spring connectors and C307&C308.
• No vibration: Try using a known good vibra instead. If there is still no vibration,
change the UEM(D200)
• Weak vibration: Use the Vibra test in Phoenix to set the vibra's parameters (fre-
quency, duty cycle). If it does not effect the magnitude of the vibration, change
the vibra.

Keyboard does not work

Check that there is no dirt between the dome sheet and the PWB. If the keyboard still
does not operate normally, try to use the Keyboard test in Phoenix to see if the pressed
key is identified. If it is not identified, change the UPP(D400).
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