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
NMM-3 Company Confidential
6-Troubleshooting CCS Technical Documentation
Page 6-6 Copyright 2003 Nokia Corporation Issue 1 (11/2003)
Company Confidential
Flash Programming Fault
Start
Is the FBUS TX-
line HIGH after
startu
p
?
No
Measure BSI-
pulse during
flash operation.
OK?
Check BSI circuit
including X200,
R204, R209, R214
and C226. OK?
No
Measure FBUS
TX-line during
flashing. Is it
~1.8V?
Y
es
Check R403, if
OK replace
UEME D200.
No
Replace TIKU
D300
No
Y
es
Is FBUS TX-line set
LOW after it has
been HIGH?
Wrong
manufacture ID
and device ID
Y
es
Y
es
Replace
Program
Flash D451
End (reset)
Y
es
Y
es
No
Phone is
dead
Possible short
circuit under TIKU
or program flash.
Replace or reflow
devices, Retest. OK?
No