Yamaha QL1 User Manual

QL5/QL1
136
2) H character display
Check for distortion in vertical and horizontal directions and
with the frame (whether or not ”H”s are clearly seen in it).
3) Color bleeding and unstable display
As “O”s appear at both sides and “X”s in-between, check
that characters are stable, “O”s are in place and the color
is free from bleeding. The characters and background are
displayed in white, black and gray with slight variation.
4) Color box
The color changes in gradation from the right to left
growing into black.
Check that the colors (5 x 4) other than black are displayed
in gradation properly.
1-18. LCD Test
Contents LCD display test
Among patterns of the LCD screen display, the
pattern 1) should be repeated at 3-second intervals
and 2) to 9) patterns at 5-second intervals. Check this
visually.
While the touch panel is pressed, the current screen
is kept as it is.
After checking, select the result as
[OK]
or
[NG]
,
using the dialog box of the test program.
Example of executing screen
Input the check result using the dialog box as shown below.
1) Model name display
Checks if the displayed model name is correct.

Yamaha QL1 Specifications

General

Channels quantity	40 channels
Digital sound processing	- bit
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	135 W
Product color	Black
Rack mounting	Yes
Video capability	-
Total Harmonic Distortion (THD)	0.05 %

Weight and Dimensions

Depth	562 mm
Width	468 mm
Height	272 mm
Weight	14700 g