Canon D78-5132, Service Manual

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2.13 Common Center Adjustment
1. Receive the 1 dot line computer signal.
2. Set to
COMPUTER mode.
[R-common center adjustment]
3. Project the red light component on the screen.
4. Adjust VR502 to obtain the minimum flicker on the picture.
[G-common center adjustment]
5. Project the green light component on the screen.
6. Adjust VR532 to obtain the minimum flicker on the picture.
[B-common center adjustment]
7. Project the blue light component on the screen.
8. Adjust VR562 to obtain the minimum flicker on the picture.
2.14 White Balance Adjustment
[PC white balance adjustment]
1. Receive the 16-step gray scale computer signal.
2. Set to
COMPUTER mode.
3. Enter to the service mode, select item no. “16” (Red) or “17” (Blue), and change data
values respectively to make a proper white balance.
[AV white balance adjustment]
4. Receive the 16-step gray scale video signal.
5. Set to
VIDEO mode.
6. Select item no. “16” (Red) or “17” (Blue), and change data values respectively to make
a proper white balance.
[Component white balance adjustment]
7. Receive the 16-step gray scale component video signal.
8. Set to
VIDEO
(Component) mode.
9. Select item no. “16” (Red) or “17” (Blue), and change data values respectively to make
a proper white balance.
Confirm that the same white balance is obtained in video, computer and component
input.
Part 3: Adjustment
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