User Guide

Nokia Customer Care Troubleshooting Instructions
Company confidential NPL-4/5
Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved. Page 5
Magic troubleshooting ......................................................................................................................94
FM Radio Troubleshooting ................................................................................................................. 95
FM radio component layout ............................................................................................................95
FM radio troubleshooting diagram ................................................................................................97
List of Figures
Page No
Fig 1 Component placement 1................................................................................................................... 7
Fig 2 Picture of the Assembled PWB with Chambers.......................................................................... 8
Fig 3 Receiver Test Points............................................................................................................................ 9
Fig 4 Transmitter Test Points...................................................................................................................... 10
Fig 5 Synthesizer Test Points...................................................................................................................... 10
Fig 6 RF Block -Diagram .............................................................................................................................. 11
Fig 7 RF Power Supply Configuration ...................................................................................................... 12
Fig 8 RSSI Window ........................................................................................................................................ 16
Fig 9 Signal Measurement........................................................................................................................... 18
Fig 10 Signal Amplitudes............................................................................................................................. 19
Fig 11 RX IQ Signals...................................................................................................................................... 20
Fig 12 Receiver Fault Chart 1..................................................................................................................... 21
Fig 13 Receiver Fault Chart 2..................................................................................................................... 22
Fig 14 Receiver Fault Chart 3, 4, 5 .......................................................................................................... 22
Fig 15 Receiver Fault Chart 6..................................................................................................................... 23
Fig 16 Receiver Fault Chart 7..................................................................................................................... 23
Fig 17 Receiver Fault Chart 8..................................................................................................................... 24
Fig 18 Receiver Fault Chart 9..................................................................................................................... 24
Fig 19 Block Diagram of Antenna Switch: Left Input Port (Antenna) and Right Output Ports Rx/
Tx........................................................................................................................................................................... 25
Fig 20 RF Controls.......................................................................................................................................... 29
Fig 21 RF Controls.......................................................................................................................................... 30
Fig 22 Band Selection................................................................................................................................... 33
Fig 23 RF Control Values.............................................................................................................................. 34
Fig 24 RF Control Values.....................................................................................................
......................... 37
Fig 25 RF Control Values.............................................................................................................................. 38
Fig 26 RF Control Values.............................................................................................................................. 41
Fig 27 RF Control Values.............................................................................................................................. 42
Fig 28 Typical Feature Tuning Curve for the Matshushita VCO........................................................ 46
Fig 29 26 Mhz at G501 Pin Out................................................................................................................. 49
Fig 30 26 MHz RFCLK at R420/C420 ....................................................................................................... 49
Fig 31 VCO Output, 1800 Band, RX on, Continuous Output ............................................................. 50
Fig 32 DC Power Supply Diagram.............................................................................................................. 57
Fig 33 NPL-4/5 BB Measurement Points, Top ...................................................................................... 58
Fig 34 NPL-4/5 BB Measurement Points, Bottom................................................................................ 59
Fig 35 MBUS.................................................................................................................................................... 79
Fig 36 ACI Diagram ...................................................................................................................................... 81
Fig 37 Testpoints............................................................................................................................................ 92
Fig 38 Component placement ................................................................................................................... 95
Fig 39 Trace layout....................................................................................................................................... 96
Fig 40 FM radio block layout.................................................................................................
..................... 96