User Guide
Table Of Contents
- 6-Troubleshooting
- Table of Contents
- Introduction to NMM-3 Troubleshooting
- General guidelines for NMM-3 trouble shooting
- Diagnostics
- Phone is Dead
- Flash Programming Fault
- SIM Card Fault (Insert SIM / Card Rejected)
- Keypad Fault
- Display Fault
- Illumination Fault
- Charger Fault
- Accessory Fault
- Audio Fault
- Camera Fault
- USB Fault
- GSM900/1800 TX Troubleshooting
- HELGO Troubleshooting
- PA and Antenna Switch Troubleshooting
- GSM900 RX Troubleshooting
- GSM1800 RX Troubleshooting
- GSM900/1800 Synthesizer Troubleshooting
- WCDMA Tx Troubleshooting
- PA and DC-DC Converter Troubleshooting
- WCDMA Rx Troubleshooting
- WCDMA Rx Synthesizer Troubleshooting
- WCDMA Tx Synthesizer Troubleshooting
- GSM/WCDMA Antenna Troubleshooting
- Test Points
- Calibration required when components changed
- BACK TO MAIN PAGE
CCS Technical Documentation 6-Troubleshooting
Company Confidential NMM-3
Issue 1 (11/2003) Copyright 2003 Nokia Corporation Page 6-7
Company Confidential
SIM Card Fault (Insert SIM / Card Rejected)
End
Start
Set phone to
LOCAL mode. Is
it OK?
No
Check BSI circuit
including X200, R204,
R209, R214 and C226.
If OK replace UEME
Measure FBUS
TX-line during
flashing. Is it
~1.8V?
Check SIM lines, if
OK replace UEME
D200.
Replace TIKU
D300
Y
es
Measure VSIM
V
oltage on C405.
Is it ~3.0V?
Check SIM
power-up
sequence. Is it OK
Y
es
No
No
Y
es
Check SIM connector
makes good contact
to SIM X405. OK?
No
Replace SIM
connector X405
Y
es