+evg2000 Posted November 28, 2015 Share Posted November 28, 2015 Hello, I've recently received a couple of Hombebrew carts that won't work on my CV. I've tried 3 different machines, and they didn't work on any of them. I've gotten replacement carts and same issue. They did work on my Adam. One of the games is The Stone of Wisdom. Spoke to Luc about it and he asked me to try an experiment. He had me push the cart to the far right and turn on the machine. I could get the cart to boot 2 or 3 times out of about 100 tries. Last night I tried another experiment, I removed the cover from my CV and both carts that were problematic boot reliably. Any one else having issues with Homebrews? Quote Link to comment Share on other sites More sharing options...
Kamshaft Posted November 28, 2015 Share Posted November 28, 2015 (edited) Are they Super Game Module games? I'm guessing no, but always good to check. Edited November 28, 2015 by Kamshaft Quote Link to comment Share on other sites More sharing options...
+evg2000 Posted November 28, 2015 Author Share Posted November 28, 2015 yes they are, and yes the sgm is plugged in. I believe they also use the same PCB Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 28, 2015 Share Posted November 28, 2015 Hello, I've recently received a couple of Hombebrew carts that won't work on my CV. I've tried 3 different machines, and they didn't work on any of them. I've gotten replacement carts and same issue. They did work on my Adam. One of the games is The Stone of Wisdom. Spoke to Luc about it and he asked me to try an experiment. He had me push the cart to the far right and turn on the machine. I could get the cart to boot 2 or 3 times out of about 100 tries. Last night I tried another experiment, I removed the cover from my CV and both carts that were problematic boot reliably. Any one else having issues with Homebrews? Can you take high resolution picture of both sides of the cartridge pcb where it connects to the Colecovision? Quote Link to comment Share on other sites More sharing options...
kelrodjr Posted November 28, 2015 Share Posted November 28, 2015 Last night I tried another experiment, I removed the cover from my CV and both carts that were problematic boot reliably. Could the cartridge slot door be slightly pushing the cart forward in the slot to where a pin isn't making good contact? It seems unlikely, but then why would it work with the cover off? Quote Link to comment Share on other sites More sharing options...
JEFF31 Posted November 28, 2015 Share Posted November 28, 2015 Hello, I've recently received a couple of Hombebrew carts that won't work on my CV. I've tried 3 different machines, and they didn't work on any of them. I've gotten replacement carts and same issue. They did work on my Adam. One of the games is The Stone of Wisdom. Spoke to Luc about it and he asked me to try an experiment. He had me push the cart to the far right and turn on the machine. I could get the cart to boot 2 or 3 times out of about 100 tries. Last night I tried another experiment, I removed the cover from my CV and both carts that were problematic boot reliably. Any one else having issues with Homebrews? Just tried my cart - plugged it in - works fine. Coleconut (If I recall correctly) modded CV with the SGM plugged in. Quote Link to comment Share on other sites More sharing options...
CrazyBoss Posted November 28, 2015 Share Posted November 28, 2015 Seems to be a lot of issues at the moments with homebrews. Quote Link to comment Share on other sites More sharing options...
retroillucid Posted November 28, 2015 Share Posted November 28, 2015 Have you tried another Power Supply? Quote Link to comment Share on other sites More sharing options...
+evg2000 Posted November 28, 2015 Author Share Posted November 28, 2015 three different power supplies, and all three work with both version of Lord of the Dungeons which are supposed to tax the power supply. Only these two games are a problem all other HB and originals work fine. Plus PS shouldn't make a difference since they work fine once the cover is removed from the system. I will take pictures later. 1 Quote Link to comment Share on other sites More sharing options...
+evg2000 Posted November 28, 2015 Author Share Posted November 28, 2015 1 Quote Link to comment Share on other sites More sharing options...
+evg2000 Posted November 28, 2015 Author Share Posted November 28, 2015 the only difference I see between these and other cart is the width of the contacts, and the split in the last contact. 1 Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 28, 2015 Share Posted November 28, 2015 The reason these carts are not reliably turning on is because of the split trace. Can you solder them together and retest? This was also an issue on Intellivision where a split trace cart pcb was used for a number of homebrew games. Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 28, 2015 Share Posted November 28, 2015 one of those split traces is for power, the other is for ground Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 28, 2015 Share Posted November 28, 2015 Can you take picture of all the new homebrew PCBs that sometimes don't work when plugged into console? I want to see if they all have the split GND and power trace. Here is the picture of the Intellivision pcb (in red) that would have the same issue (sometimes work, sometimes not). Fix was to bridge the split trace with solder/wire. Notice Mattel PCB (in green) does not use split trace. I wonder how long these split traces PCBs will work, as the card edge connector tries to make contact with the center of the conductor on the pcb and this is where there is no copper. Quote Link to comment Share on other sites More sharing options...
+evg2000 Posted November 29, 2015 Author Share Posted November 29, 2015 Just tried my cart - plugged it in - works fine. Coleconut (If I recall correctly) modded CV with the SGM plugged in. Is your CV a US or Canadian version? Trying to see if that makes a difference. Quote Link to comment Share on other sites More sharing options...
+evg2000 Posted November 29, 2015 Author Share Posted November 29, 2015 Can you take picture of all the new homebrew PCBs that sometimes don't work when plugged into console? I want to see if they all have the split GND and power trace. Here is the picture of the Intellivision pcb (in red) that would have the same issue (sometimes work, sometimes not). Fix was to bridge the split trace with solder/wire. Notice Mattel PCB (in green) does not use split trace. The other cart is split also. Don't want to destroy another label to take a picture. The carts don't work at all unless I press them to the side. Why would they split the contacts? The first picture above looks like there are two traces going to each of the sides of the split contact. Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 29, 2015 Share Posted November 29, 2015 The other cart is split also. Don't want to destroy another label to take a picture. The carts don't work at all unless I press them to the side. Why would they split the contacts? The first picture above looks like there are two traces going to each of the sides of the split contact. It is used for programming purposes. Quote Link to comment Share on other sites More sharing options...
JEFF31 Posted November 29, 2015 Share Posted November 29, 2015 Is your CV a US or Canadian version? Trying to see if that makes a difference. US version I guess. I didn't know that Luc made Canadian versions... Quote Link to comment Share on other sites More sharing options...
Pixelboy Posted November 29, 2015 Share Posted November 29, 2015 US version I guess. I didn't know that Luc made Canadian versions... He was talking about your ColecoVision console. 2 Quote Link to comment Share on other sites More sharing options...
retroillucid Posted November 29, 2015 Share Posted November 29, 2015 He was talking about your ColecoVision console. More about the Power Supply itself, as both US & Canadian CV consoles are identical, their Power Supply are not But hey, I know you already knew that, so I don't really know why I'm posting this afterall Well, maybe for those who might not know Quote Link to comment Share on other sites More sharing options...
JEFF31 Posted November 29, 2015 Share Posted November 29, 2015 He was talking about your ColecoVision console. DOH! I have the Canadian version hooked up right now..... Have both a Canadian (Coleconut modded) and US (Yurkie modded) unit. Tried both and the game plays fine on both of them. Quote Link to comment Share on other sites More sharing options...
Rey Posted November 30, 2015 Share Posted November 30, 2015 I had this same issue with my last set of new homebrew carts. After noticing there was contact when moving the cart plugged in, I decided to clean the contacts. Yes I know there were new and looked clean but when I began cleaning them, I noticed there was a barely noticeable very light blue coating on the contacts that was removed. Once I cleaned them all the issue was resolved. 1 Quote Link to comment Share on other sites More sharing options...
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