Indoor White Balance Check (Vc-95 Board) - Sony Video8 CCD-F501 Service Manual

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8-2-29.
Indoor White Balance Check (VC-95 Board)
2)
Select the adjustment address EB and set the adjustment data
toll.
(Shutter data indication mode setting)
3)
Change the adjustment address.
4)
Set the shutter speed to 1/2000 with SHUTTER SPEED
button.
5) Set up the portrait mode (44) with PROGRAM AE
button.
6)
Cover-the lens with ND filter 0.5 (0.4+0.1), and wait for 2
seconds.
:
7)
Read the data (Ds7) indicated on the AF microcomputer data
reading jig and enter adjustment address 97.
(Ds7 shold be 80 to 86.)
8)
Convert Ds7 to decimal to obtain De7',
9)
Obtain Doe' by the following formulla.
D96*=D97°+10
10) Convert
D96°
to hexadecimal,
and
enter
it into the
adjustment address 96.
11) Cover the lens and ND filter 0.5 with black cap, and wait for
2 seconds.
12) Confirm that the data indicated on the AF microcomputer
data reading jig is FF.
13) Select the adjustment address EB and set the adjustment data
to 00.
14) Change the adjustment address to store the adjustment data
in the memory.
balance mode. (2 mark is displayed on LCD.)
2) Confirm that the center of the white luminance point is
within the standard circle.
Note: When using a vectorscope, adjust the gain and phase
of the vectorscope so that burst luminance point
moves to the burst position of the color reproduction
frame.
The center of white
Ry
luminance point is
within this circle,
B-Y
2.5mm
2.5mm
Fig. 8-34.
— 268 —

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