User Guide
Table Of Contents
- Amendment Record Sheet
- Copyright
- Warnings and cautions
- For your safety
- Care and maintenance
- ESD protection
- Battery information
- Company Policy
- Nokia 3500c Service Manual Structure
- 1 General information
- 2 Service Tools and Service Concepts
- 3 BB Troubleshooting and Manual Tuning Guide
- Baseband troubleshooting overview
- Power and charging troubleshooting
- Interface troubleshooting
- User interface troubleshooting
- Audio troubleshooting
- Introduction to acoustics troubleshooting
- Audio troubleshooting test instructions
- Earpiece troubleshooting
- Internal earpiece troubleshooting
- External headset earpiece troubleshooting
- IHF troubleshooting
- IHF troubleshooting
- Microphone troubleshooting
- Internal microphone troubleshooting
- External headset microphone troubleshooting
- Connections troubleshooting
- Baseband manual tuning guide
- 4 RF Troubleshooting and Manual Tuning Guide
- 5 System module
- Glossary

Table 8 Calibration value limits ......................................................................................................................... 3–48
List of Figures
Figure 8 Flashing pic 1. Take single trig measurement for the rise of the BSI signal.................................. 3–16
Figure 9 Flashing pic 2. Take single trig measurement for the rise of the BSI signal.................................. 3–16
Figure 10 Location of the microSD card reader in RM-272/273...................................................................... 3–18
Figure 11 SD card initialization from pin J3206 ............................................................................................... 3–19
Figure 12 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is
connected. ................................................................................................................................................. 3–26
Figure 13 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is
connected. ................................................................................................................................................. 3–27
Figure 14 Single-ended output waveform of the HP_in_Ext_out loop when microphone is connected....
3–27
Figure 15 BER test result..................................................................................................................................... 3–37
Figure 16 Bluetooth self tests in Phoenix......................................................................................................... 3–38
RM-272; RM-273
BB Troubleshooting and Manual Tuning Guide
Page 3 –4 COMPANY CONFIDENTIAL Issue 1
Copyright © 2007 Nokia. All rights reserved.










