Atw-Pro Check; Defect Correction - Sony SuperExwave IPELA SNC-CS50N Service Manual

5. Confirm that the white luminescent spot on a
vectorscope is converged in the specifications.
Object:
Confirming equipment: Vectorscope
Confirmation point:
Specifications:
6. Remove the Color temperature correction filter C14.
7. Confirm that "Finish" is displayed on the window.

2-4-14. ATW-PRO Check

1. Click the [Check] button for ATW-PRO check.
2. Put a Color temperature correction filter C14 in a lens.
3. Adjust the lens iris and set the white video level of a
VIDEO OUT signal.
Object:
Confirming equipment: Waveform monitor
Confirmation point:
Specifications:
4. Confirm that the white luminescent spot on a
vectorscope is converged in the specifications.
Object:
Confirming equipment: Vectorscope
Confirmation point:
Specifications:
5. Remove the Color temperature correction filter C14.
6. Confirm that "Finish" is displayed on the window.
SNC-CS50N/CS50P
100% white pattern
White luminescent spot of
VIDEO OUT
Convergent time:
Within about 10 seconds
Convergent point:
Within 10% in radius with the
origin in the center
(A vectorscope is assumed to
be 100% in diameter.)
100% white pattern
White video level of
VIDEO OUT
65 ±3 IRE (NTSC)
464 ±21 mV (PAL)
100% white pattern
White luminescent spot of
VIDEO OUT
Convergent time:
Within about 30 seconds
Convergent point:
Within 10% in radius with the
origin in the center
(A vectorscope is assumed to
be 100% in diameter.)

2-5. Defect Correction

1. Start of defect correction mode
(1) Set the switch (S651) on the PR-291 board to the front
position of this unit.
(2) Display the select window referring to Section 2-1-2.
(3) Set the select window and click the [Detect] button.
The password input window is then displayed.
(4) Click the [OK] button without entering any data in
"Password" and display the defect correction mode
window.
Defect correction mode window
2. Setting of defect threshold value
(1) Confirm the defect position, which you want to
correct, using a color monitor.
(2) Adjust "Defect threshold" and set a defect threshold
value.
n
As a defect threshold value becomes lower, more
white spots are detected as a defect.
To avoid the detection more than required and set a
threshold value to 48 first for correction. Change the
threshold value according to the detection result.
2-13 (E)