I believe the resistor for the backlight is either 100 or 150 ohms. Would you have a suggestion where to start with a resistor for backlit start/select RGB module? I have the included resistor for the backlight soldered directly to connection tab so I'd have to take the backlight back out to switch it out for another which I'd rather not do if I don't have to. Would installing a second resistor where it connects to power cause a problem? (I wouldn't think so but I thought I'd ask. Better safe than sorry)
17 Mar 30, 2016 10:33 pm
Re: Power problems with an EMS 64m cart, backlight and RGB start/select (41 replies, posted in Nintendo Handhelds)
18 Mar 30, 2016 4:28 pm
Topic: Power problems with an EMS 64m cart, backlight and RGB start/select (41 replies, posted in Nintendo Handhelds)
Hello! I'm just getting into chiptune and just joined the forum. Anyway I finally got an EMS cart with LSDJ. I have a biverted HHL V2 pink backlight and the Kitsch-Bent/Thursday Customs RGB backlit start/select buttons set to pink. Everything worked fine until I added the EMS cart into the mix. While using the EMS cart I have had contrast issues and an over-heating problem (the regulator board would get hot and smell of electrical). I searched the forums and the internet. I couldn't come up with much. A few posts mentioned the EMS carts having a power draw problem but that it was fixed back in 2010. I did what I could. I checked all my solder points and eventually moved them directly to regulated power. That lessened the contrast issue but not the over-heating issue. I recapped the gameboy. Which seems to have solved the over-heating issue (I haven't been able to test it for an extended period of time because some of the caps where too big in the kit and I can't close the case. I'm waiting on new ones). From the bit of testing I could do the contrast fluctuations are still present. A few things I forgot to mention. I have the included resistor installed with my backlight. I know LSDJ has a power save setting but the contrast issue also occurs with normal games that I have on the other page of the EMS. I see a lot of people with backlights and even more LED mods than me using the EMS carts with seemingly no problem but a lot of those seem to PIL gameboys which if I understand correctly have a revised regulator board. I have the first version with only a single capacitor. So fiiinnnallyy lol my question is: Is there anyway to beef up the regulator, say with a different cap with higher capacitance? Or alternately would it be possible to transplant the revised regulator from a donor gameboy? Really any suggestions on potentially fixing the problem would be more than welcome.