<![CDATA[ChipMusic.org - HELP!! backlight fail!!]]> 2012-04-14T18:55:01Z PunBB https://chipmusic.org/forums/topic/6740/help-backlight-fail/ <![CDATA[Re: HELP!! backlight fail!!]]> its the vb from kitsch bent

]]> https://chipmusic.org/Grymmtymm 2012-04-14T18:55:01Z https://chipmusic.org/forums/post/100489/#p100489 <![CDATA[Re: HELP!! backlight fail!!]]> took the factory one off, this backlight already had it on there

]]> https://chipmusic.org/Grymmtymm 2012-04-14T18:33:56Z https://chipmusic.org/forums/post/100485/#p100485 <![CDATA[Re: HELP!! backlight fail!!]]> Did you take out the polarization film for the picture or did you never put it in?

]]> https://chipmusic.org/thnikk 2012-04-14T17:49:59Z https://chipmusic.org/forums/post/100483/#p100483 <![CDATA[Re: HELP!! backlight fail!!]]> well the lcd is clean, so I dont know how it would be blotchy.

]]> https://chipmusic.org/Grymmtymm 2012-04-14T17:46:23Z https://chipmusic.org/forums/post/100482/#p100482 <![CDATA[Re: HELP!! backlight fail!!]]> It's much more likely you did something wrong in the capacitor replacement. Since most of the caps are mounted with thru hole plated pads, you may have ripped out some traces. I'd do some continuity testing.

But first, the obvious course of action would be to just remove the backlight and see if it works. There's no reason it would cause power consumption problems. The resistors are built in, so it's a foolproof installation. Also check if the blotchiness is in the panel itself or the LCD.

]]> https://chipmusic.org/Apeshit 2012-04-14T17:36:56Z https://chipmusic.org/forums/post/100479/#p100479 <![CDATA[Re: HELP!! backlight fail!!]]> that's what my guess was is that the panel is no good

]]> https://chipmusic.org/Grymmtymm 2012-04-14T16:58:20Z https://chipmusic.org/forums/post/100473/#p100473 <![CDATA[Re: HELP!! backlight fail!!]]> just checked all the capacitators, they're in the correct order and position.

and I used computer duster to blow out dust before putting it all together

]]> https://chipmusic.org/Grymmtymm 2012-04-14T16:57:53Z https://chipmusic.org/forums/post/100472/#p100472 <![CDATA[Re: HELP!! backlight fail!!]]> The panel may be broken then. Or else there's moisture underneath the layers.

]]> https://chipmusic.org/Apeshit 2012-04-14T16:54:39Z https://chipmusic.org/forums/post/100471/#p100471 <![CDATA[Re: HELP!! backlight fail!!]]> I did

]]> https://chipmusic.org/Grymmtymm 2012-04-14T16:43:59Z https://chipmusic.org/forums/post/100470/#p100470 <![CDATA[Re: HELP!! backlight fail!!]]> Try removing the protective plastic.

]]> https://chipmusic.org/Apeshit 2012-04-14T16:36:26Z https://chipmusic.org/forums/post/100468/#p100468 <![CDATA[Re: HELP!! backlight fail!!]]> here's what it looked like when I was done

]]> https://chipmusic.org/Grymmtymm 2012-04-14T16:27:32Z https://chipmusic.org/forums/post/100466/#p100466 <![CDATA[Re: HELP!! backlight fail!!]]> I will shortly

]]> https://chipmusic.org/Grymmtymm 2012-04-14T16:10:37Z https://chipmusic.org/forums/post/100463/#p100463 <![CDATA[Re: HELP!! backlight fail!!]]> can you post a pic, or link to one, of the splotchiness of the screen?  i'm not totally sure what that means (is it the screen image, or the light diffusion?)

]]> https://chipmusic.org/kitsch 2012-04-14T16:05:12Z https://chipmusic.org/forums/post/100462/#p100462 <![CDATA[Re: HELP!! backlight fail!!]]> first, check and make sure you've installed all the capacitors the correct direction.  i have a hunch you've maybe flipped one and put it in backwards...

also (i did this yesterday, fresh on my mind), make sure the ribbon cable is not only installed, but installed straight.  they have a tendency to slip a little bit when you install them, and if you've crossed pins there you'll get wacky results on the screen most likely.

you're right, can't really mess up with installing the backlight, which would only mean the LEDs in it won't work.  putting the backlight in backwards wouldn't cause the other issues.

my bet is a backwards cap.  or maybe more than one.

]]> https://chipmusic.org/kitsch 2012-04-14T16:03:53Z https://chipmusic.org/forums/post/100461/#p100461 <![CDATA[Re: HELP!! backlight fail!!]]> and is there anything that I can do to fix it?

]]> https://chipmusic.org/Grymmtymm 2012-04-14T15:26:18Z https://chipmusic.org/forums/post/100456/#p100456