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ChipMusic.org / Forums / Nintendo Handhelds / DMG screen contrast is constantly changing after recapping
[Well, I'm just started out with modding, so go easy on me please :) ]
I'm trying to restore a DMG, preparing it for some mod (want to do screen backlight, prosound, pitch mod later). I recapped it, but something is definitely not OK - when it's turned on, the screen contrast is constantly changing.
Do you have any idea on how to solve this, what to check, etc.?
don't know but I have a similar thing with a stock pocket, do you use the same cart every time you turn it on? For me it happens when ever I switch carts.
Thanks for the suggestions, I will check the caps 
i was going to say a backwards capacitor as well. let us know what happens?
It doesn't matter which cart I use. Of course, I've checked the batteries, no problems with that either.
edit: Just checked the polarity everywhere, it seems to be OK (except that I forgot to replace one cap). When I turn the contrast dial, sometimes the contrast is table, sometimes it's changing. I guess it would be nice to replace the contrast and volume pots too...?
Last edited by scorchio (May 18, 2013 10:41 am)
You can always shoot some electronic cleaner in them as well. sounds like dial may have bad contact