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
Checking antenna functionality
GSM antenna
In the GSM antenna, there is one feed and two GND contacts.
Between GND1 and Feed, a DC short-circuit can be measured.
GND2 has no DC connection to the other contacts.
The antenna is functioning normally, if the contact pads hit the antenna C-clips on the PWB and the antenna
is visually intact.
BT antenna
The BT antenna is (as the GSM antenna) placed on the flex foil on the antenna module. It has one feed and
one short contact. The antenna is functioning normally, if the contact pads hit the antenna C-clips on the
PWB and the antenna is visually intact.
Figure 23 Location of the GSM and BT antenna C-clips on the PWB
RM-272; RM-273
RF Troubleshooting and Manual Tuning Guide
Page 4 –18 COMPANY CONFIDENTIAL Issue 1
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