Audio Failure (2) - Nokia NSB-1 Series Troubleshooting Instructions

NSB–1/3
Troubleshooting Instructions

Audio failure (2)

Digital PCM data at pin 52 of Cobba (N300)
during a call
Analog audio signal (some ten millivolts) at pins 5 and
6 of N300 during a call
Page 22
Downlink (earphone) is broken
YES
YES
DC voltage at pins 5 and 6 of
N300 is 1.4 V during a call
YES
Technical Documentation
NO
Check
D200 (MAD2)
Check
NO
N300 (Cobba)
Check
NO
N300 (Cobba)
PAMS
Original 06/98