Roland Va-7, Заметки по обслуживанию

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VA-7
July, 2000
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7. TOUCH SCREEN Test
Note: to carry out this test, a normal pen is required.
Press the [BANK/6] button, the display shows:
•
BANK1 - calibrate
Action : Pressing the [BANK/1] button, you enter the Calibration test.
Action: Pressing the [BANK/1] button, you exit the Calibration test.
Pressing the [BANK/2] button, you enter the LCD calibration test.
Note: Once you enter the Calibration test, you can not exit unless you carry out the calibration operations.
The display shows:
Touch the left lower corner of each slit with the pen for a few seconds, according to the numbering shown in
the following picture. When the VA-7 recognizes the touch, + will change into 0.
This way, the writing “Touch me” will appear to show the correct order, so please follow this indication. During
the calibration, do not touch any point except "Touch me". After touching the four points, the calibration ends
and the display will show one of the following displays:
Note: The calibration set will be memorized on the VA-7 internal flash, by turning it on while keeping the
[Melody Intelligence] button pressed, after having loaded the System program.
When the calibration fails, the following display will appear.
Calibration OK
Press BANK5 to exit
1
2
3
4
+ +
+ +
Touch Me.
VA-7 TOUCH SCREEN TEST
BANK1 - Exit calibrate
BANK2 - Confirm calibration
Press BANK5 to exit
VA-7 TOUCH SCREEN TEST
BANK1 - calibrate
BANK2 - touch X, Touch Y test
Press BANK5 to exit
You have to carry out the calibration again.
Press the [BANK/5] button to go to the next test.
•
BANK2 - touch X, Touch Y test
Action : Pressing the [BANK/2] button, you enter the test to check the LCD "darkest" area, the display shows:
Action : Touch with a pen the upper left corner of the LCD in its darkest area. Pass the pen through the LCD,
horizontally first (from the left to the right) and check that the X value is 320. Then repeat the operation from
downwards to upwards and check that the Y value is 240. The acceptable variation from these values is +/- 5%.
To exit, press [BANK/5]
Second group of test => NUMBER
1. FLASH test
Press the [NUMBER/1] button, the display shows:
Action : The display visualizes the 24 blocks written and then verified in the flash.
OK will be visualized if everything works properly.
ERROR will be visualized if there are any anomalies.
To exit, press [BANK/5]
Note: if there is an asterisk (*) beside the “Flash Test” item within the Main Menù, this means that this kind of
check has already been carried out.
2. ROM STYLE Test
Press the [NUMBER/2] button the display shows:
To exit, press [BANK/5]
ROM STYLE TEST
OK or ERROR
Press BANK 5 to exit
VA-7 FLASH TEST
Writing 24
Verifying 24
Flash OK or Error
Press BANK 5 to exit
Touch X - 1
Touch Y - 1
Press BANK5 to exit
NG. Calibration