pn64 power shortage

sunjayc_99 · Post by **sunjayc_99** » Sun Feb 12, 2006 5:56 pm

Okay. My PN64 is finished, and there's only one problem.
The backlight on the Gamecube screen that I'm using keeps turning off.
I'm pretty sure that it's because it's sucking all the juice out of the batteries.
On a full charge, The screen's backlight stays on for about a minute.
Can anyone help me out?

daguuy · Post by **daguuy** » Sun Feb 12, 2006 6:31 pm

do the LED mod, it makes it much more efficient and easier to fix

superdeformed · Post by **superdeformed** » Sun Feb 12, 2006 8:36 pm

Sounds like there's a problem with the backlight itself. When the backlight cuts out, can you tell if the screen is still displaying anything? If you toggle the power does it work again?

sunjayc_99 · Post by **sunjayc_99** » Mon Feb 13, 2006 11:09 pm

Yes, the screen is still working even though the backlight cuts out.
If I turn the screen off then on again, the backlight stays on for a few seconds before cutting out again. A few times though and it doesn't even come on.

superdeformed · Post by **superdeformed** » Tue Feb 14, 2006 1:28 pm

Normally I would suggest probing around the board to make sure everything is getting the right voltage/current/etc, but since it's the backlight you'll probably want to stay away from it (the inverter puts out very high voltages). You could still check for shorts around it, but your best bet is to either try and find a replacement for the CCFL, or as daguuy said, try and replace it with LEDs.

sunjayc_99 · Post by **sunjayc_99** » Tue Feb 14, 2006 10:33 pm

What's the LED mod? And how will it help?

daguuy · Post by **daguuy** » Tue Feb 14, 2006 11:35 pm

http://www.extremetech.com/article2/0,1 ... 554,00.asp
basically what you do is replace the backlight with LEDs. i would recomend more than 3 though, anywhere from 4-6 should be plenty bright.

sunjayc_99 · Post by **sunjayc_99** » Thu Feb 16, 2006 5:59 pm

The link didn't work for me... is it still up?

daguuy · Post by **daguuy** » Thu Feb 16, 2006 6:10 pm

whoa, that's wierd. it was working yesterday. you could get the book, it covers that. either that or wait a long time for me to make one for my guide

or if you think you could figure it out, you could do it without a guide. there used to be one on POD, but tehy took it down

Kurt_ · Post by **Kurt_** » Thu Feb 16, 2006 6:50 pm

I'm surprised that nobody's mntioned this yet:

Isn't there something in the portable screens sticky about this?
Something like "....If your screen powers up and then goes blank."

A part of the screen needed +5V going into it.

http://www.benheck.com/phpBB/viewtopic. ... 9&start=17

Post by **marshallh** » Thu Feb 16, 2006 6:57 pm

I'm fairly sure that's only on PAL screens. Maybe you need to short the emergency fuse?

sunjayc_99 · Post by **sunjayc_99** » Thu Feb 16, 2006 11:07 pm

How would i know which one that is? i don't recall anything being clearly marked when we opened up the screen...