Nokia NPC-1 Series Troubleshooting Instructions page 3

NPC-1
PAMS Technical Documentation Troubleshooting Instructions
List of Figures
Page No
Fig 1 Power up sequence .....................................................................................................7
Fig 2 Fault tree, phone does not power up...........................................................................9
Fig 3 Fault tree, charging .....................................................................................................13
Fig 4 Fault tree, earpiece fail ...............................................................................................14
Fig 5 Fault tree, microphone fail .........................................................................................15
Fig 6 Fault tree, accessory detection....................................................................................16
Fig 7 Fault tree, sleep clock .................................................................................................17
Fig 8 Fault tree, Display/Keyboard lights............................................................................18
Fig 9 Fault tree, Display does not work...............................................................................19
Fig 10 Fault tree, infrared ....................................................................................................21
Fig 11 Fault tree. AMPS ......................................................................................................23
Fig 12 Fault tree. Transmitter troubleshooting ....................................................................27
Fig 13 Fault tree: Power control loop ..................................................................................29
Fig 14 Detected voltages......................................................................................................30
Fig 15 Fault tree: 19.44 MHz oscillator...............................................................................31
Fig 16 Fault tree: RX VHF VCO.........................................................................................32
Fig 17 Fault tree: TX VHF VCO .........................................................................................33
Fig 18 Fault tree: UHF Synthesizer .....................................................................................34
Issue 1 10/01 ãNokia Corporation Page 3