Table Of Contents - Nokia RH-41 Series Troubleshooting Instructions

CCS Technical Documentation
Contents
Transceiver Troubleshooting ......................................................................................... 5
Baseband Troubleshooting ..........................................................................................5
General testing........................................................................................................... 5
Troubleshooting ........................................................................................................ 5
Power up faults.......................................................................................................... 6
Flash Programming does not work.......................................................................... 10
Charging .................................................................................................................. 12
Audio failures.......................................................................................................... 13
Accessory detection................................................................................................. 16
Sleep Clock ............................................................................................................. 17
Display/Keyboard lights do not work ..................................................................... 18
Display does not work............................................................................................. 19
Buzzer does not work.............................................................................................. 20
Keyboard does not work ......................................................................................... 20
Receiver Troubleshooting ..........................................................................................20
General instructions for RX troubleshooting .......................................................... 20
Path of the received signal ...................................................................................... 20
Fault-finding charts for receiver chain .................................................................... 21
Transmitter Troubleshooting .....................................................................................26
General instructions for TX troubleshooting .......................................................... 26
Path of the transmitted signall................................................................................. 27
Fault-finding charts for the transmitter ................................................................... 27
Synthesizer Troubleshooting .....................................................................................33
19.44 MHz reference oscillator ............................................................................... 33
RX VHF .................................................................................................................. 34
Fault-finding chart for RX VHF VCO ................................................................... 35
TX VHF................................................................................................................... 35
UHF Synthesizer ..................................................................................................... 36
Issue 2 09/2003
Nokia Corporation
Troubleshooting Instructions
Confidential
RH-41
Page No
Page 3