User Guide

NPL-4/5 Company confidential
Troubleshooting Instructions Nokia Customer Care
Page 6 Copyright © 2004 Nokia Corporation. All rights reserved. Issue 1 05/04
Fig 41 FM radio troubleshooting diagram.............................................................................................. 98
Fig 42 Oscilloscope screen shot, Audio output ..................................................................................... 99
Fig 43 FM radio clock from test point J359, 32 kHz frequency clock signal, when radio is on.
100
Fig 44 FM frequency from FM radio pin 37, the other end of L358, with FM test signal........ 100
Fig 45 VCO frequency from FM radio pins 3 and 4, the other ends of V356 and V357, with FM
test signal ........................................................................................................................................................... 100