Casio QT-6600 Service Manual page 58

[ 13 ] LCD Test
[Function]
Tests whether LCD operates correctly.
When performing a single test:
To change the screen, touch any part of the panel.
In order to complete the test, the operator must determine pass(OK)/fail(NG) of the result.
When performing test infinitely:
The screens change automatically.
Press ESC to end the test.
Black White
[Operation]
Operation : n
n: Number of times
0 or no value
A value other than 0 (1 ~ 9) Tests repeat infinitely (press ESC to terminate)
[LCD]
LCD
Please Hit Key
LCD
END
[ 14 ] LCD Backlight OFF Test
[Function]
Tests whether LCD Backlight turns OFF properly.
In order to complete the test, the operator must determine pass(OK)/fail(NG) of the result.
The backlight is set to OFF after the test. Touch any part of the Touch Panel and determine
pass(OK)/fail(NG) of the result.
(1) LCD Backlight turns OFF
(2) Touch any part of the panel
(3) LCD Backlight turns ON
(4) The operator determines pass(OK)/fail(NG) of the test result
[Operation]
Operation : 1
[LCD]
LCD BACK LIGHT
Please Hit Key
LCD BACK LIGHT
END
Red Green
0 2 1 ST
To perform a single test
n021
OK−>1 NG−>9
OK
n021
2 1 ST
[PRINT]
121
OK−>1 NG−>9
OK
121
— 55 —
Check (black
Blue
and white)
[PRINT]
LCD
LCD
END
LCD BACK LIGHT
LCD BACK LIGHT
END
Reverse
check
n021
OK
n021
121
OK
121