Noah98 Posted June 7, 2016 Share Posted June 7, 2016 (edited) I noticed that some of my Colecovision games have lines through the sprites. My games are all clean, the system is av modded and has a rocker switch installed for power. I even cleaned the cartridge slot. It's weird that most of my games have no issues, but Zaxxon, Frenzy, Roc n' Rope, Mr. do, etc. all have weird lines going through the characters and sometimes their shots. I'm assuming that it has to be either the Ram or the power supply. Any ideas on what is more likely? I'd hate to buy a new power supply (they are still way expensive) and have the problem persist. As far as the ram goes, it seems pretty tough to replace. I'm not sure if my soldering skills are up to it ? Edited June 7, 2016 by Noah98 Quote Link to comment Share on other sites More sharing options...
VectorGamer Posted June 7, 2016 Share Posted June 7, 2016 I had the same problem the resolution was to get a new power brick. I actually have two power bricks: one that I am currently using and a NOS power brick in box for a backup. Quote Link to comment Share on other sites More sharing options...
+Yurkie Posted June 7, 2016 Share Posted June 7, 2016 Its better to use the power supply once in awhile than to let it sit around. Original poster you most likely have a power supply or VDP issue. I've been servicing and modding ColecoVision for 6 years feel free to send me a message. Quote Link to comment Share on other sites More sharing options...
ValkerieSilk Posted June 7, 2016 Share Posted June 7, 2016 I had the same problem the resolution was to get a new power brick. I actually have two power bricks: one that I am currently using and a NOS power brick in box for a backup. Oooo, that would be hard to break into ;( Quote Link to comment Share on other sites More sharing options...
VectorGamer Posted June 8, 2016 Share Posted June 8, 2016 Oooo, that would be hard to break into ;( It was pretty easy. I don't think there was a seal on the box and even if it did I bought it to use it. Quote Link to comment Share on other sites More sharing options...
Rey Posted June 8, 2016 Share Posted June 8, 2016 I'll be making available a new power supply solution for the colecovision real soon to be rid of some of these issues. For example, if no F18A is to be installed then I plan to offer a service to replace the vram with the new power supply. If I were to install the F18A then no need to replace the old vram as it's disabled. I can add the -5v as I do with the ADAM but rather just move away from it permanently. 3 Quote Link to comment Share on other sites More sharing options...
ValkerieSilk Posted June 8, 2016 Share Posted June 8, 2016 It was pretty easy. I don't think there was a seal on the box and even if it did I bought it to use it. ;( ... Quote Link to comment Share on other sites More sharing options...
Noah98 Posted June 9, 2016 Author Share Posted June 9, 2016 I'll be making available a new power supply solution for the colecovision real soon to be rid of some of these issues. For example, if no F18A is to be installed then I plan to offer a service to replace the vram with the new power supply. If I were to install the F18A then no need to replace the old vram as it's disabled. I can add the -5v as I do with the ADAM but rather just move away from it permanently. How much do you estimate it to cost without an F18A installed? So, just the new power supply and vram. Quote Link to comment Share on other sites More sharing options...
Rey Posted June 9, 2016 Share Posted June 9, 2016 How much do you estimate it to cost without an F18A installed? So, just the new power supply and vram. Not sure yet but will post about it soon. Quote Link to comment Share on other sites More sharing options...
Noah98 Posted June 9, 2016 Author Share Posted June 9, 2016 Ok, I'll stay tuned! I would love to have a more reliable Colecovision. Such a great system, but soo many hardware issues ? Quote Link to comment Share on other sites More sharing options...
Noah98 Posted March 2, 2020 Author Share Posted March 2, 2020 On 6/7/2016 at 9:57 AM, Yurkie said: Original poster you most likely have a power supply or VDP issue. I've been servicing and modding ColecoVision for 6 years feel free to send me a message. I finally got around to ordering a colusb from overseas. Still having the same issue with corrupted graphics. For example, in Frenzy the shots have weird lines going through them. So, now I have a modern power supply, AV mod, and new power switch, cleaned the cartridge slot and power supply port with Deoxit, and still issues! It was weird because I got it to work fine for a couple games, and then it went right back to the graphics issues. Sometimes the title screens would have weird colors, lines through sprites, corrupted graphics, etc. Does that mean I have a VDP issue? If so, how would I fix it? Would installing these be the solution: https://console5.com/store/colecovision-5v-memory-upgrade-kit.html Seems like a test for my soldering skills, for sure! Any help would be greatly appreciated! Quote Link to comment Share on other sites More sharing options...
ApolloBoy Posted March 8, 2020 Share Posted March 8, 2020 It's possible that you could have bad VRAM, which the 5V RAM upgrade would fix. Quote Link to comment Share on other sites More sharing options...
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