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(3) LCD Brightness
Note: 1) Be sure to adjust LCD contrast-1 before performing LCD brightness adjustment. 2) Be sure to adjust LCD contrast-2 after completing LCD brightness 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 BRIGHT on the LCD ADJUSTMENT MENU screen. 2) Click the EXECUTE button on LCD ADJUSTMENT MENU screen to proceed with the BRIGHT ADJUSTMENT screen. 3) Click the UP or DOWN button so that the value of level B of waveform is 2.35V ± 0.1Vp-p. Click the button at approx. 2-second intervals while checking any increase or decrease in level B. 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.
[Before Adjustment]
LCD ADJUSTMENT MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
LCD ADJUSTMENT MENU
LCD ADJUSTMENT MENU
PLL
CONTRAST
BRIGHT
1
WHITE BALANCE
2
EXECUTE
RETURN
CONNECTION
BRIGHT ADJUSTMENT screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
BLIGHT ADJUSTMENT
UP
DOWN
3
4
SAVE
RETURN
CONNECTION
ADJUSTMENT FINISHED dialog
FINISHED ADJUSTMENT FINISHED. OK
5
B
[After Adjustment]
B = 2.35V ± 0.1Vp-p
Fig. 6-4-9 Waveform of LCD Bright Adjustment