Nokia 301 Service Manual page 43

RM-839; RM-840; RM-841
BB Troubleshooting and Manual Tuning Guide
Introduction to BB troubleshooting....................................................................................................................
Baseband self self-test in Care
Power and charging troubleshooting.................................................................................................................
Dead or jammed device troubleshooting
General power checking
Charging troubleshooting
Clocking troubleshooting
Power-on key troubleshooting....................................................................................................................
Interface troubleshooting
Flash programming
Memory troubleshooting..............................................................................................................................
Memory card troubleshooting
SIM cards troubleshooting
Dual SIM troubleshooting.............................................................................................................................
USB interface troubleshooting.....................................................................................................................
User interface troubleshooting.........................................................................................................................
Keypad troubleshooting
Keypad illumination
Display module troubleshooting
General instructions for display
Display module troubleshooting
Camera interface troubleshooting
Camera troubleshooting instructions
No valid data from Camera
Audio troubleshooting.......................................................................................................................................
Audio troubleshooting test
Internal earpiece troubleshooting
Internal handsfree (IHF)
Internal microphone troubleshooting
External earpiece troubleshooting..............................................................................................................
External microphone
Vibrator troubleshooting
Baseband manual tuning
Energy management calibration
PIT function instruction
PIT function overview..............................................................................................................................
Certificate restore.....................................................................................................................................
Product code change
List of Tables
Table 1 Display module troubleshooting
Table 2 Pixel defects ..........................................................................................................................................
Table 3 All test items for
List of Figures
Figure 8 Test pads .................................................................................................................................................
Figure 9 Camera interface signals (Blue is clk red data)
Figure 10 Camera interface IC troubleshooting guide
Issue 1
Table of Contents
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