Simulating a CONTRAST changer on LCD screen

Question

Hi All / KGLAD... :-)
I am making a simulator for an LCD screen and have the contrast changing with "btn_down" properly. I have an up button - "btn_up" that i would like to be able to control the contrast in the opposite direction, keeping track of the current color in the Array and moving back. I tried changing the code to increment negatively through the Array but something is screwy... It doesnt like the multiple duplicate values that i have and only works when "btn_down" has initially moved the array...
any suggestions??
Thank you in advance!
//CONTRAST CHANGE
//To Change Colors of HiLight Bar, Header Bar, and Plain Text
var colorA:Array = [0x041607,0x041607,0x041607,0x041607,0x041607,0x041607,0x041607,0x041607,0x041607,0x26D94 9,0x26D949,0x26D949,0x26D949,0x26D949,0x26D949,0x26D949,0x26D949,0x26D949,0x26D949];
mc_LCD_loader.c = new Color(mc_LCD_loader);
mc_LCD_loader.index = 0;
mc_LCD_text_loader.c = new Color(mc_LCD_text_loader);
mc_LCD_text_loader.index = 0;
//To Change Colors of LCD Screen and Selected Text
var colorB:Array =[0x26D949,0x22C341,0x1EAD3A,0x1A9833,0x17832C,0x136D24,0x0F571D,0x0B4216,0x062900,0x0416 07,0x062900,0x0B4216,0x0F571D,0x136D24,0x17832C,0x1A9833,0x1EAD3A,0x22C341,0x26D949];
mc_LCD.c = new Color(mc_LCD);
mc_LCD.index = 0;
mc_LCD_text_selected_loader.c = new Color(mc_LCD_text_selected_loader);
mc_LCD_text_selected_loader.index = 0;
btn_down.onRelease = function()
AudibleBeep1 = new Sound(this);
AudibleBeep1.attachSound(btnPressBeep);
AudibleBeep1.start(0, 1);
mc_LCD_loader.c.setRGB(colorA[mc_LCD_loader.index]);
mc_LCD_loader.index=(mc_LCD_loader.index+1)%colorA.length;
mc_LCD_text_loader.c.setRGB(colorA[mc_LCD_text_loader.index]);
mc_LCD_text_loader.index=(mc_LCD_text_loader.index+1)%colorA.length;
mc_LCD.c.setRGB(colorB[mc_LCD.index]);
mc_LCD.index=(mc_LCD.index+1)%colorB.length;
mc_LCD_text_selected_loader.c.setRGB(colorB[mc_LCD_text_selected_loader.index]);
mc_LCD_text_selected_loader.index=(mc_LCD_text_selected_loader.index+1)%colorB.length;
btn_up.onRelease = function()
AudibleBeep1 = new Sound(this);
AudibleBeep1.attachSound(btnPressBeep);
AudibleBeep1.start(0, 1);
mc_LCD_loader.c.setRGB(colorA[mc_LCD_loader.index]);
mc_LCD_loader.index=(mc_LCD_loader.index-1)%colorA.length;
mc_LCD_text_loader.c.setRGB(colorA[mc_LCD_text_loader.index]);
mc_LCD_text_loader.index=(mc_LCD_text_loader.index-1)%colorA.length;
mc_LCD.c.setRGB(colorB[mc_LCD.index]);
mc_LCD.index=(mc_LCD.index-1)%colorB.length;
mc_LCD_text_selected_loader.c.setRGB(colorB[mc_LCD_text_selected_loader.index]);
mc_LCD_text_selected_loader.index=(mc_LCD_text_selected_loader.index-1)%colorB.length;

Answer 1

Ardha,
Welcome to the forum.  White spots on the LCD, typically a bright white spot most clearly seen against a white background like the forum, or google home page, is caused by pressure damage - pressure applied to back of the LCD panel. 
Since you indicated that you have only had the system 1 day, unless you are aware of something that happened while in your care, I can only guess that the damage was done during transport or manufacturing.  I would recommend you contact your point of purchase and ask to exchange the unit.  I would also try to power up and inspect the new system immediately to make sure all is well.
Please also see my PM - I would like you to take a pic of the spot and email to me if possible.  While random things happen, I'd like us to take a look at this. 
Best regards,
Mark
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
Program Manager, Lenovo Social Media (Services)
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