Yamaha QL5 Service Manual page 162

QL5/QL1
[Adjusting (Confirming) the Touch & Turn LED]
1) After clicking the Touch & Turn SW on the screen, select
and touch the CH COLOR to be adjusted, and the color
corresponding to the color bar on the unit appears.
2) If color scattering is visible, use the TOUCH AND TURN
encoder to adjust the RGB ADJUSTMENT values. Colors
are in the order of red, green and blue from the left.
Red
3) Confi rm that the colors are bright blue, green, blue and gray.
If there are any extreme color variations or differences in
brightness, look at all the colors and adjust item 2.
4 ） 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.
162
Green Blue
[Adjusting CH NAME LCD back light and contrast]
After running a general test or manually calibrating, next adjust
the CH NAME LCD backlight and contrast.
Additionally, 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 central values will be set for CH NAME LCD backlight and
contrast with RESET ALL. If you simply press the B [SEL]
key during this operation, the values will be those that were last
set with [APPLY] with RESET ALL.
CH NAME LCD back light adjustment
1) Adjust the brightness of each channel by using the [CUE]
and [ON] keys.
Check the brightness of all channels visually and adjust
extremely brighter or darker ones to match the brightness
of other channels.
Pressing the [CUE] key once increases the brightness
by one step and pressing the [ON] key once reduces the
brightness by one step.
The adjustable range has steps 1 to 11. After the jig
calibration, it is set at the center value.
2 ） After adjustment, save the adjusted value by touching the
[APPLY] button on the screen.
CH NAME LCD contrast adjustment
1) Adjust the contrast of each channel by using the [SEL]
key, TOUCH AND TURN encoder, [CUE] and [ON]
keys.
Check the contrast of all channels and adjust extremely
different ones to match the contrast of other channels.
Turn the GAIN encoder to view different contrasts for all
the channels. If the way of changing to black or white is
different, adjust the contrast of that channel by using the
[CUE] and [ON] keys while pressing the [SEL] key of
that channel. Pressing the [CUE] key once makes blacker
by one step and pressing the [ON] key once makes whiter
by one step. The contrast is changed with each 2 channels
as one NAME LCD unit.
The adjustable range has steps 1 to 25.
2 ） After adjustment, save the adjusted value by touching the
[APPLY] button on the screen.