GX15
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CONFIDENTIAL
4.8.13 Black defect correction
*Black defect correction:
Defective pixels in a camera light sensor appear as black points in the display even when a captured image is completely white (display is all white).
Perform black defect correction to eliminate errors in these pixels.
1) Requirements
•
Desk top type of fluorescent lamp
•
Black defect correction sheet
Figure 73
•
Illuminance meter
2) Procedure
1. Cover the camera section with the black defect correction sheet as shown in Figure 74.
Figure 74
2. Check the distance from the fluorescent lamp by using an illuminance meter.
In the proper position for black defect correction, illuminance is between 8,000 and 10,000 lux.
Figure 75
Attach the sheet to the handset (phone)
firmly with clear scotch tape.
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