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Screen noise like you wouldn't beleive

Posted: Tue Sep 06, 2016 9:05 pm
by PotaTox
So, today I just finished the GBZ for the second time (the first time was unsucussful, broke the screen), and I turn it on to see it works! The video loading screen plays, and all is good.

Until Emulation station loads up.
Then, (excuse me for my language), the screen just flips the fuck out of control. It can barely hold a steady image for more than a moment, it's turning on and off, noise, and lots of it. I can't take photos or videos right now (I'm sure it's something obvious I missed). I do want to note that when booting up, not that much audio noise is produced, but when emulation station loads, you hear more static. So maybe the audio is messing with the screen? Sorry, I can't get pictures until I get back from school tomorrow, but I may be able to look at it before I go to school in the morning.

Re: Screen noise like you wouldn't beleive

Posted: Wed Sep 07, 2016 12:19 am
by swingflip
First thing I would do is eliminate the possibility of it being software or something to do with the Pi.

Does it do the same thing when you plug the HDMI in and use HDMI instead of the composite screen?

Secondly I would check your display driver board for any bad connections. Can you take a close up photo of the driver board?

Lastly can you take a photo of the Pi connections.

It sounds like a bad connection, either a bad solder connection or a bad wire

Re: Screen noise like you wouldn't beleive

Posted: Wed Sep 07, 2016 2:40 pm
by fedplast
is the noise/flicker affected by how you handle the gb0? does gently shaking it or tapping it give you noise pops or flickers? if so, you probably got a loose wire or something touching something...

Re: Screen noise like you wouldn't beleive

Posted: Wed Sep 07, 2016 7:16 pm
by chaosratt

Re: Screen noise like you wouldn't beleive

Posted: Wed Sep 07, 2016 7:44 pm
by PotaTox
It seemed to actually only happen when I plugged something in VIA USB, but now that everything is done, it fixed itself. Also, @chaosratt Yea, it looked like that.

Re: Screen noise like you wouldn't beleive

Posted: Wed Sep 07, 2016 8:12 pm
by chaosratt
Seems to be a power problem to me. When powered from output of the pi, it goes crazy like that. When powered by my powerboost, everything is OK.