Nokia n81 Service Manual page 167

RM-179; RM-223
Camera Module Troubleshooting
Camera construction ..............................................................................................................................................5-5
Main camera construction .....................................................................................................................................5-5
Secondary camera construction ...........................................................................................................................5-6
Camera viewfinder troubleshooting ....................................................................................................................5-7
Bad camera image quality troubleshooting........................................................................................................5-8
Main camera troubleshooting...............................................................................................................................5-9
Main camera baseband HW troubleshooting
Secondary camera troubleshooting
Secondary camera baseband HW
Flash LED troubleshooting..................................................................................................................................
Introduction to flash LED troubleshooting
Flash LED and image taking conditions
Flash LED construction
Analysing image quality
Possible faults in image
Testing flash module functionality
Testing image colours with flash
Testing flash power
Camera flash LED troubleshooting
Indicator LED troubleshooting
List of Figures
Figure 43 Camera module cross section and assembly principle......................................................................5-5
Figure 44 Main camera module bottom view including serial numbering......................................................5-5
Figure 45 Front camera module cross section and assembly principle............................................................5-6
Figure 46 Example of a good quality image taken with the flash LED
Figure 47 overexposed
Figure 48 Dark and noisy image
Figure 49 Shaken image
Figure 50 Camera white balance failure and overexposure
Figure 51 Color difference between flash colour limit samples
Figure 52 Mechanical construction of the flash LED module
Issue 1
Table of Contents
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troubleshooting..........................................................................................
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COMPANY CONFIDENTIAL
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