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 3610 fold Service Manual Structure
- 1 General information
- 2 Service Tools and Service Concepts
- 3 BB Troubleshooting and Manual Tuning Guide
- General BB troubleshooting guidelines
- Phoenix self tests
- ST_CURRENT_CONS_TEST troubleshooting
- ST_SLEEPCLK_FREQ_TEST troubleshooting
- ST_SLEEP_X_LOOP_TEST troubleshooting
- ST_UEM_CBUS_IF_TEST troubleshooting
- Power and charging troubleshooting
- Interface troubleshooting
- User interface troubleshooting
- Camera module troubleshooting
- Audio troubleshooting
- Bluetooth troubleshooting
- Baseband manual tuning guide
- 4 RF troubleshooting
- 5 System Module
- Glossary
Figure 4 SIM power-up sequence
User interface troubleshooting
Keyboard troubleshooting
Context
There are two possible failure modes in the keyboard module:
• One or more keys are stuck, so that the key does not react when a keydome is pressed. This kind of failure
is caused by mechanical reasons (dirt or corrosion).
• Malfunction of several keys at the same time; this happens when one or more rows or columns are failing
(shortcut or open connection).
If the failure mode is not clear, start with the Keyboard test in Phoenix.
RM-429
BB Troubleshooting and Manual Tuning Guide
Page 3 –22 COMPANY CONFIDENTIAL Issue 1
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