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(2) LCD Contrast-1
Note: Be sure to adjust LCD brightness and LCD contrast-2 after completing LCD contrast-1 adjustment. Preparations: 1) Connect the oscilloscope CH2 to "LCD-G (pin 5)" of Skylark Connection jig. 2) Switch the oscilloscope V-MODE to "CH2": Leave the TRRIGER SOURCE in "CH1" as is. Procedure 1) Choose CONTRAST on the LCD ADJUSTMENT MENU screen. 2) Click the EXECUTE button on LCD ADJUSTMENT MENU screen to proceed with the CONTRAST ADJUSTMENT screen. 3) Click the UP or DOWN button so that the value of level A of waveform is 2.20V ± 0.05Vp-p. Click the button at approx. 2-second intervals while checking any increase or decrease in level A. 4) After step 3) is complete, be sure to click the SAVE button. Note that clicking the RETURN button will restore the LCD ADJUSTMENT MENU screen to the status before the adjustment was performed. 5) When save is complete, the ADJUSTMENT FINISHED dialog will appear: Click the OK button in dialog to restore the LCD ADJUSTMENT MENU screen.
LCD ADJUSTMENT MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
LCD ADJUSTMENT MENU
LCD ADJUSTMENT MENU
PLL
CONTRAST
1
BRIGHT
WHITE BALANCE
2
EXECUTE
RETURN
CONNECTION
CONTRAST ADJUSTMENT screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
CONTRAST ADJUSTMENT
UP
DOWN
3
4
SAVE
RETURN
CONNECTION
ADJUSTMENT FINISHED dialog
FINISHED ADJUSTMENT FINISHED. OK
5
A = 2.20V ± 0.05Vp-p
Fig. 6-4-8 Waveform of LCD Contrast-1 Adjustment