Fm Radio Troubleshooting Diagram; Notes To "Fm Radio Troubleshooting Diagram - Nokia NPL-4 Series Troubleshooting Instructions

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FM radio troubleshooting diagram

Notes to "FM radio troubleshooting diagram"

Use 1MHz 1X probe when measuring Audio and clock signals with oscilloscope.
Use active RF probe when measuring frequencies with spectrum analyzer.
Note 1. RF test signal parameters:
- Amplitude, A, –67.0 dBm
- Carrier frequency, f
- Deviation,
- Modulating frequency f
- FM stereo, mode R=L, pilot state ON
Copyright © 2005 Nokia Corporation. All rights reserved.
Issue 2 05/05
Company confidential
, 98,000 MHz
c
∆
f, 75 kHz
, 1,000 kHz (RF generator internal)
m
NPL-4/5/
Troubleshooting Instructions
Page 99