Nikon D3 VBA18001 Repair Manual page 94

(6)Sensitivity ratio adjustment
Using the shutter tester (LV9 equiv.) and tool lens (F5.6), the adjustment is made so that the R/G, B/G output
becomes the same as the output ratio of the sensitivity ratio reference value that was calculated by the reference
body. The adjustment is made only under the condition of ISO200, and the average value of (425 pixels × 425
pixels) which was deviated from the center by 425 pixels is used.
(7) Sensitivity/sensitivity ratio inspection
△ (Revision)
color viewer
Using the shutter tester (LV13 equiv.) and tool lens (F5.6), inspect whether a difference from the reference body
is in the range of standards.
(8) Pixel defect compensation - black point
△ (Revision)
color viewer
Using the shutter tester (LV13 equiv.) and tool lens (F5.6), pictures are taken. When pixels of which the output
level is under specified value are detected, the coordinates of the detected pixels are additionally written as pixel
defect compensation data.
(9) Pixel defect compensation - white point
Pictures are taken on the blackout surface (against dark background). In case the pixel output is found to
be beyond the standard value, the detected pixel coordinates are additionally written as the pixel defect
compensation data.
(10) Tilted sensor inspection & adjustment
This checks whether the indications of the virtual horizon display of the camera match the shot image, and make
necessary adjustments.
SETUP
① Place the tilted sensor checking chart.
[Enlarge a A4 (size) chart of the repair manual with a copier to become A3 (size), and use it.]
② Attach the AF50/1.4D lens to the camera. Set AF mode to "M", focus ring to "0.7m".
③ Set the camera in front of the chart approx. 0.7m-distance away.
④ Check the virtual horizon display, and place the camera at the horizontal position.
Make the inspection by start button, while make the adjustment by adjustment button.
(11) TFT adjustment
Flickering, color and luminance of TFT are adjusted.
※ Whenever the DG-PCB or TFT monitor are replaced, be sure to perform "WRITING THE TFT FIXED
VALUE."
Hue adjustment
Usually default value is set and adjustment is not necessary.
If some problem is found with hue by visual check, adjust and correct it by "+/-" button.
Changed page △× 2
Tilted sensor checking chart
AF50/1.4D
approx. 0.7 ｍ
- Ａ 56 ･
Mounting surface of Image-PCB
-
logo Q0440 forGraphic
070518 Gdesign ito
INC
VBA18001-R.3719.A
サービス
計画課
Ｍ
Dec.28.2007