Samsung NV20 Service Manual page 56

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Ⅲ. ADJUSTMENT
② Place the camera onto the light source.
[Adjustment Light Source Specifications]
- Specification of the Adjustment Tool : A light source that can block out external light sources.
- Colour Temperature : 3200K ± 50
- Brightness : LV 13.2 ± 0.1
- Distance from the Adjustment Tool : 15mm±2mm
※ Hold the LV checker closely up to the surface of the light source box.
(Using the LV checker manufactured by our factory.)
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