Toshiba IK-TF9P Service Manual page 27

1-2-5. ABB Adjustment
Screen display : 05 ABB
Test equipment : PC MONITOR
Test point : DIGITAL OUT
Adjustment point : DATA UP/DOWN
Specification : –––
1. Set the lens iris to close.
2. Press the DATA buttons.
3. The automatic black balance adjustment is performed
automatically and "ABB OK" is displayed on the
screen. (It takes about 45 seconds.)
1-2-6. Screen Display Confirmation
Test equipment : PC monitor
Test point : DIGITAL OUT
Adjustment point : –––
Specification : –––
1. Shoot the color bar chart to confirm that no
abnormality is found on the screen.
1-2-7. White Pixel Masking
Test equipment : PC MONITOR
Test point : DIGITAL OUT
Adjustment point : –––
Specification : –––
1. Turn on the power again.
2. After more than 15 minutes continuity, set the lens
iris to close and keep pressing the DATA DOWN
button for a long times at approx. 7 seconds.
3. The automatic white pixel masking is performed
automatically and "PIX OK" is displayed on the
screen.
2-5 IK-TF9P