Yamaha QL1, Service Manual

Page: 161 / 367

QL5/QL1
161
COLOR BAR AND CH NAME LCD CALIBRATION
While holding down the
B [SEL]
key, turn on the power
switch, and the [Special Mode Screen] will appear, where
INITIALIZE, TRIM, CALIBRATION, etc. are executed.
Among MODE SELECT buttons, touch [LED COLOR
CALIBRATION] and the LED COLOR CALIBRATION
window appears. From hear, adjust the color bar and CH
NAME LCD backlight according to the following procedure.
[Manual Operation]
1) Select the color to be adjusted from CH COLORs and
touch it, and the color of the color bar of the main unit
changes accordingly.
2) If there is a channel where color variation is found, press
the
[SEL]
key to select the channel to be changed.
3) Use the CentralLogic RGB ADJUSTMENT and TOUCH
AND TURN encoder to adjust the RGB ADJUSTMENT
values one channel at a time. Colors are in the order of red,
green and blue from the left.
Red Green Blue
4) Color adjustment should be done over all the colors until
extreme differences in the color and brightness are not
found.
5) As the final step, press the
[APPLY]
key to store the
adjusted values.
When simultaneously holding down the
32 [SEL]
key and
the
B [SEL]
key
(for QL5)
, or the
16 [SEL]
key and the
B [SEL]
key
(for QL1)
when performing this operation,
the LED calibration value will be also written into the
factory
fi eld called up by RESET ALL.
6) After adjusting the color bar, adjust the CH NAME LCD
back light and contrast as described hereunder.
[Setting FACTORY Values Manually By Changing
Circuit Boards, etc.]
1) Simultaneously hold down the
32 [SEL]
key and the
B
[SEL]
key
(for QL5)
, or the
16 [SEL]
key and the
B
[SEL]
key
(for QL1)
to turn the power on.
2) The MENU screen will appear, switch to the LED
CALIBRATION screen.
3) If there is a problem with the colors of MULTI COLOR,
press RESET ALL.
(Since the FLASH data may be corrupted, all colors will
be set to their
fi xed values.)
4) If there are fragmented colors or the fi xed values are not
set, press the
B [SEL]
key and adjust the LED, and set
all RGB values to 0, then click
[APPLY]
. Since this will
render the FLASH data corrupt, do this again for item 3 to
set the
fi xed values.
Then manually perform the settings for each LED with
[Manual Operation]
.