Item Data Content
RCUT
20
Red dark balance
GCUT
20
Green dark balance
BCUT
20
Blue dark balance
GDVR
40
Green bright balance
BDVR
40
Blue bright balance
Press the
⊟
button on the remote controller. A horizontal bright line will appear on the screen.
Then adjust the screen grid (G2) potentiometer on the horizontal output transformer in such a
way that the bright line on the screen is just visible. If a red horizontal bright line appears,
press down button blue + while pressing red + until the line turns purple. If it exceeds, press
button blue – until the line turns purple. Then press button green + to turn the line into white.
If it exceeds, press button green – until the line turns white. Finally, press button
⊟
to recover
the screen.
c. Bright balance adjustment
Adjust the brightness and contrast control to make the screen brighter and the chrominance
off. Press the item selection buttons for green or blue bright balance. Adjust the brightness and
contrast control to make the screen darker and check the white balance of the low brightness.
If the dark balance is not proper, adjust the dark balance adjusting button to achieve good
white balance for low and high brightness. The white balance adjustment finishes. Finally,
switch off the set with the remote controller and quit the maintenance adjustment state.
Note: many maintenance item adjustments can be done with I
2
C bus control. They are not
explained one by one hereby. The adjustment item states are listed below for the maintenance
personnel:
(2) Enter the S-MODE state with the user remote controller
Press the volume down button on the set until the volume is 00 on the screen. Keep holding it
and press button DISP on the remote controller. Character S appears on the top right corner of
the screen, indicating that it is S-MODE maintenance state. The following is shown on the
screen:
RCUT 20 S