Service manual

46
VL-Z1U
Item
Adjustment method
1) Perform the adjustment of white balance repeatedly.
(7) Adjustment of white balance
• Measurement terminal:
EE output
• Address:
"0090" INDOOR_W/B R
"0092" INDOOR_W/B R
• Measuring instrument:
Vector scope
• Object:
Grey scale
• Data changing range:
"0000" to "03FF"
1) Perform the color gain adjustment repeatedly.
Adjustment address
Red amplitude 1.82 ± 0.05 time (burst ratio) : "0338"
Blue amplitude 1.52 ± 0.05 time (burst ratio) : "033A"
Yellow amplitude 1.18 ± 0.05 time (burst ratio) : "033B"
Red phase 103° ± 1° : "0335"
Blue phase 343° ± 2° : "0333"
Yellow phase 165° ± 2° : "0334"
(9) Adjustment of auto white balance
adjustment
• Measurement terminal:
EE output
• Address:
"0016" OUTDOOR R
"0018" OURDOOR B
• Measuring instrument:
Vector scope
• Object:
Grey scale
• Data changing range:
"0000" to "03FF"
1) Set the color temperature conversion filter (LB165) on the lens.
2) While shooting the gray scale normally, observe the monitoring screen of the vector
scope. By rewriting the data, position the luminescent spot so that the following burst
ratio is obtained.
R-Y 0 ± 5% (burst ratio)
B-Y 0 ± 5% (burst ratio)
(8) Adjustment of color gain
• Measurement terminal:
EE output
• Address:
"0338" CGIN RYG
"033A" CGIN BYG
"0335" CMAT RYG
"0333" CMAT BYG
"033B" Yellow amplitude
"0334" Yellow phase
• Measuring instrument:
Vector scope
• Object:
Waveform monitor color bar chart
• Data changing range:
"0000" to "00FF"
1) Establish the normal mode (by writing data " FF" at address "0000".
2) While shooting the gray scale normally, observe the video output using the
oscilloscope. Check that the white luminance signal level is 705±10mVp-p and that
the gray luminance signal level (on the gray scale background) to 330±10mVp-p.
(10) Adjustment of iris AE
• Measurement terminal:
S terminal luminance signal output
(75 Ω termination)
• Address: "0002" AE_CVT
• Measuring instrument:
Oscilloscope (horizontal cycle)
• Object:
Grey scale
• Data changing range:
"0000" to "00FE"
100mV/div