Flash Led Construction; Analysing Image Quality; Possible Faults In Image Quality; Testing Flash Module Functionality - Nokia n81 Service Manual

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Camera Module Troubleshooting

Flash LED construction

Figure 52 Mechanical construction of the flash LED module

Analysing image quality

Possible faults in image quality

When checking for possible errors in the flash functionality, knowing what error is suspected, significantly
helps the testing by narrowing down the number of possible test cases. The following types of image quality
problems may be expected to appear:
• LED module is not flashing at all
• Image colours are not good
• Flash power is weak

Testing flash module functionality

Context
With the help of this test you can check the flash module's overall functionality.
Always set the flash to FORCED FLASH mode when performing the test. The FORCED FLASH mode enforces the
LED module to flash, even if there is some ambient light present.
Steps
1. Take an image with the flash and monitor at same time whether the LED module flashes.
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