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Panasonic Omnivision PV-C2540-K Service Manual page 72

Combination vcr

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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 screenis 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 desired control function and move the shaded area
to the value.
7.3.13. SUB BRIGHTNESS ADJUSTMENT
Purpose :
To set the optimum brightness level.
Symptom of Misadjustment :
The picture is too white or too black.
Note:
Perform this adjustment in a darkened room.
Test Point:
----------
Adjustment:
SUB BRIGHT (EVR)
Specification:
Refer to descriptions below.
72

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