Service manual

39
VL-SD20U
VL-FD1U
Item
Adjustment method
(1) White balance adjustment is performed repeatedly.
(7) White balance adjustment
• Measurement terminal:
EE output
• Address:
"0050" INDOOR W/BR
"0052" INDOOR W/BR
• Measuring instrument:
Vector scope
• Object:
Grey scale
• Data variation width:
"0000" to "03FF"
Adjustment address
Red amplitude 1.45 ± 0.05 time (burst ratio) : "03DE"
Blue amplitude 1.15 ± 0.05 time (burst ratio) : "03E0"
Red phase 100° ± 1° : "03DB"
Blue phase 347° ± 2° : "03D9"
(8) Color gain adjustment
• Measurement terminal:
EE output
• Address:
"03DE" CGIN RYG
"03E0" CGIN BYG
"03DB" CMAT RYG
"03D9" CMAT BYG
• Measuring instrument:
Vector scope
• Object:
Waveform monitor color bar chart
• Data variation width:
"0000" to "00FF"
(1) Color gain adjustment is performed repeatedly.
(1) The color temperature conversion filter (LB165) is mounted in front of lens.
(2) Indication of vector scope is observed in the grey scale standard record state, and
an adjustment is made so that the luminous dots are located in the following
positions:
R-Y 0 ± 5% (burst ratio)
B-Y 0 ± 5% (burst ratio)
(9) Auto white balance adjustment
• Measurement terminal:
EE output
• Address:
"000C" OUTDOOR R
"000E" OUTDOOR B
• Measuring instrument:
Vector scope
• Object:
Grey scale
• Data variation width:
"0000" to "03FF"
(10) White gain adjustment
In the signal system adjustment mode, adjustment is performed automatically when the data is written in the address "0001".
1) In the signal system adjustment mode, adjustment is performed automatically when the data "_05" is written in the address
"0001".
When the adjustment is completed normally, the data "FFFF" is return to the address "0001".
If a data other than "FFFF" is returned, the adjustment is judged improper.
2) Mount the color temperature conversion filter(LB165) on the front of lens.
3) In the signal system adjustment mode, adjustment is performed automatically when the data "06" is written in the address "0001".
When the adjustment is completed normally, the data "FFFF" is return to the address "0001".
If a data other than "FFFF" is returned, the adjustment is judged improper.
Address Data Adjustment item Object
0001
0005 Low color temperature white gain adjustment White pattern
0006 High color temperature white gain adjustment White pattern + LB165
After completion of adjustment set the regular operation mode (the data " FF" is written in the address "0000".)