Panasonic Omnivision VHS PV-C2780, Руководство по обслуживанию

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clockwise carefully and stop at the point where any color is first
observed.
10. In EVR adjustment mode, select the two colors not observed in
step 9 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 9, select
and adjust the B CUT -OFF and G CUT -OFF.
11. Supply a White Pattern Signal to the Antenna Input Terminal.
12. Press DISPLAY key on the remote control again to return for full
frame scan.
13. Select G DRIVE and B DRIVE in EVR adjustment mode and
adjust so that the entire screen is white.
14. 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 screenis tracking the White Pattern properly.
Repeat the above steps 6, 10, 12, and 13 until the screen is
properly tracking the White Pattern.
15. Set PARENT PICTURE to UHF/VHF TUNER/TV DEMODULATOR 1
UNIT input.
16. Connect the Oscilloscope to TP50 on the CRT C.B.A.
(Use TP47 for GND.)
17. Select R-SUB BRIGHT and move the shaded area to the value in
EVR adjustment mode.
18. Adjust the FOCUS CONTROL on the Flyback Transformer so that
the center of picture is the sharpest.
19. Press DISPLAY key (Service Switch) on the remote control for
collapse scan. (Refer to HOW TO ENTER SERVICE MODE .)
20. Turn the SCREEN CONTROL on Flyback Transformer fully
counterclockwise.
21. Adjust R-SUB BRIGHT in EVR adjustment mode so that the level
A is 185 VDC±5 VDC.
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