White Balance Check - Sony Handycam Vision CCD-TRV89E Service Manual

11. White Balance Check

Subject Clear chart
(Color bar standard picture frame)
Filter Filter C14 for color temperature
correction
ND filter 1.0 and 0.3
Measurement Point video output terminal
Measuring Instrument Vectorscope
Specified Value Fig. 5-1-10. A to C
Switch setting:
1) NIGHT SHOT switch ...................................................... OFF
Checking method:
1) Check that the lens is not covered with either filter.
2) Select page: 2, address: 01, set data: 0F, and press the PAUSE
button of the adjusting remote commander.
3) Check that the center of the white luminance point is within the
circle shown Fig. 5-1-10.A.
4) Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
5) Select page: 2, address: 01, set data: 23, and press the PAUSE
button of the adjusting remote commander.
6) Place the C14 filter on the lens.
7) Check that the center of the white luminance point settles in the
circle shown Fig. 5-1-10.B.
8) Remove the C14 filter, and place the ND filter 1.3 (1.0 +0.3) on
the lens.
9) Check that the white luminance point stopped moving, and then
remove the ND filter 1.3.
10) Check that the center of the white luminance point settles within
the circle shown Fig. 5-1-10.C.
Processing after Completing Adjustments
1) Select page: 2, address: 01, and set data: 00, and press the PAUSE
button of the adjusting remote commander.
2 mm
1.0 mm
3 mm
1.0 mm
5-20
R-Y
2 mm
B-Y
Fig.5-1-10. A
R-Y
1.0 mm
B-Y
3 mm
3 mm
Fig.5-1-10. B
R-Y
3 mm
2.0 mm
B-Y
Fig.5-1-10. C