Omnivision PVQ-1300W, Service Manual

Page: 115 / 175

8. Turn the SCREEN CONTROL on the Flyback Transformer clockwise carefully and
stop at the point where any color is first observed.
9. In EVR adjustment mode, select the two colors not observed in step 8 from the
following control functions (B CUT -OFF, G CUT -OFF, or R CUT -OFF) and adjust
so that the horizontal line becomes white.
For example, if the horizontal line appeared red in step 8, select and adjust the B
CUT -OFF and G CUT -OFF.
10. Supply a White Pattern Signal to the Video Input Jack.
11. Press DISPLAY key on the remote control again to return for full frame scan.
12. Select G DRIVE and B DRIVE in EVR adjustment mode and adjust so that the
entire screen is white.
13. Select SUB BRIGHT in EVR adjustment mode. Then, after making a note of the
original value, adjust to the minimum (C0) and while turning SUB BRIGHT value
from minimum (C0) up to maximum (3F), confirm that the screen is tracking the
White Pattern properly. Repeat the above steps 5, 9, 11, and 12 until the screen is
properly tracking the White Pattern.
Note:
Before pressing DISPLAY key on the remote control for collapse scan, select the
115