Nokia NPL-4 Series Troubleshooting Instructions page 6

NPL-4/5/RM-104 Company confidential
Troubleshooting Instructions Nokia Customer Care
Fig 40 FM radio block layout. .............................................................................................98
Fig 41 FM radio troubleshooting diagram ...........................................................................100
Fig 42 Oscilloscope screen shot, Audio output ...................................................................101
Fig 43 FM radio clock from test point J359, 32 kHz frequency clock signal, when radio is on.
102
Fig 44 FM frequency from FM radio pin 37, the other end of L358, with FM test signal..102
Fig 45 VCO frequency from FM radio pins 3 and 4, the other ends of V356 and V357, with
FM test signal.........................................................................................................................102
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Page 6 Issue 2 05/05