DSLR-A100, DSLR-A100H, DSLR-A100K, DSLR-A100W (serv.man3) - Sony Digital Camera Service Manual (repair manual). Page 55

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6-53
DSLR-A100_ADJ
2-4.
LIGHT SOURCE-A MAINTENANCE
Out Line
Because high accuracy of required light source-A is required when adjusting and confirming.
Required equipment
Chroma meter (CL-200)
Liminance meter (LS-100)
Light source-A (Tungsten lamp)
Procedure
* Managements of the chromaticity and the luminance
1. Light the light source-A on.
2. Measure the chromaticity coodinate (x,y) with the chroma meter. (Fig. 1)
3. The result should be within the range of the following table.
* If the result is out of the range, adjust the light voltage of the light source-A through the variable transformer.
Chromaticity
x = 0.445 to 0.455
y = 0.405 to 0.415
4. Measure the luminance with the luminance meter.
5. The result should be within the range of the following table.
* If the result is out of the range, adjust the distance of  the light source-A.
  120 to 180 cd/m
2
 (Ev10 
± 0.3Ev)
Fig. 1
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