Casio PX-780 Service Manual page 70

9-1. LCD Intensity Adjustment
No Operation
Boot the diagnostic program.
1
Tap "5.LCD"
or
push "5" key.
2
Tap "6.Adjust (LED BL)"
or
push "6" key.
3
Measure the brightness in
" " with a display tester.
Adjust the brightness with
". " key (to increase the value)
4
or
"- " key (to decrease the value).
After completion, push ">" key.
Push "Enter" key.
5
Tap [Exit]
or
6
push "Enter" key.
Display
Display "Main Menu 1".
** LCD CHECK **
1.Fill VRAM
2.Pattern
3.Color Bar
4.Scroll
5.Adjust (VCOM)
6.Adjust (LED BL)
[Exit] or Enter Key
** Adjust LED BL **
LED = 74 _ > RIGHT Key
[Exit] or Enter Key
** Adjust LED BL **
_
LED = 74 > RIGHT Key
[Exit] or Enter Key
** LCD CHECK **
1.Fill VRAM
2.Pattern
3.Color Bar
4.Scroll
5.Adjust (VCOM)
6.Adjust (LED BL)
[Exit] or Enter Key
Back to Main Menu 1
– 68 –
Inspection contents
_
_
Adjust until the display tester
shows 87 - 93 [cd/m2].
Confirm the display on the left.
Confirm the display on the left.