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

• 1 dynamic speaker
• 1 microphone module
Retu also provides an output for the vibra motor.
All external audio accessories are connected to the specific audio connector.
Figure 33 Audio block diagram
Internal audio
The internal audio components are used in these modes:
Hand portable (HP) mode Internal hands free (IHF) mode
Microphone X X
Earpiece X
Speaker X
RM-272; RM-273
System module
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