Sharp GX15, Service Manual

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GX15
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CONFIDENTIAL
4.8.12 White defect correction
* White defect correction:
Defective pixels in a camera light sensor appear as bright points in the display even when light is blocked completely (display is all black). Perform
white defect correction to eliminate errors in these pixels.
1. Protect the handset (phone) camera from light completely with a black cover.
2. Click the “White defect correction” button. The following screen appears.
Figure 71
Click the “Yes” button and leave it for about 20 seconds. When completed, the following message appears.
Figure 72
When an error occurs, the corresponding message appears. Solve the problem according to “Solution”.
• Error 1
Error message: “There are too many white cracks.”
Cause: The light is not sufficiently blocked.
Solution: Block the light completely and perform white defect correction again.
• Error 2
Error message: “There are many white cracks.”
Cause: The light is not sufficiently blocked.
Solution: Block the light completely and perform white defect correction again.
• Error 3
Error message: “There are too many white cracks cannot be rectified.”
Cause: There is a hardware error.
Solution: Replace the camera unit.