LidLikesIntellivision Posted December 6, 2012 Share Posted December 6, 2012 My system (a modded one with A/V output, pause and a bios that allows me cut the Colecovision display) can't show sprites of some games. I tested around 50 games and it doesn't show sprites for Jungle Hunt, Galaxian, Mousetrap, BC's Quest, Mountain King, Buck Rogers and Donkey Kong Jr. With some of these games I can see sprites in the very begining (1 or 2 seconds) and then zapt! they disappear and I see some minor glitches (thin lines) when they're getting invisible. When I make many tests either with the same game or changing them the inicial sprites don't show anymore, not even for that 1 or 2 secs. In Jungle Hunt I always can see the inicial Atari logo and it desappears very soon. I noted some glitches with some games like Space Panic. I used some tools in Atarimax, Vram test passes but I don't know if the tool knows exactly it is really ok or if I should look those patterns and compare with a working Coleco. This is my first and only Colecovision. Note: Donkey Kong Jr. is the only game I have to test with a cartridge, all others I tested with the Atarimax SD. Any help is appreciated. P.S.: I don't do soldering or any major tech repair but I would find a good place to send my system and get it repaired. Quote Link to comment Share on other sites More sharing options...
coleco_master Posted December 6, 2012 Share Posted December 6, 2012 Hi Liduario, this is so weird! I never heard about this problem. I just ship out your 2 games and the Fury Box. Hope you'll get them soon, so you'll have more cart to try. Let me know when you get them. Thank you again Toby 1 Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted December 6, 2012 Author Share Posted December 6, 2012 Thank you Toby! I hope homebrew games have more vivid sprites! I found someone who may fix my coleco here in Brazil! January I'll send him my Coleco. Coincidently he's name is Eduardo! He may be good. Quote Link to comment Share on other sites More sharing options...
cOLeCoHiTMan Posted December 7, 2012 Share Posted December 7, 2012 couple non techie things... unplug and firmly replug it from back of colecovision.... i've had bad picture from power supply. get some de-oxit and spray the cartridge slot.. maybe spray the plug connections to make sure no oxidation there either. 1 Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted December 7, 2012 Author Share Posted December 7, 2012 I can try the de-oxit. I'll cross fingers and try it but my system is in great overall condition... Quote Link to comment Share on other sites More sharing options...
SKELETOR68 Posted December 7, 2012 Share Posted December 7, 2012 Try a different power plug socket, my Coleco Vision does that on plugs upstairs, but in the basement it works great. ie.. Fire balls in Donkey Kong would vanish but still be in play, if there were at least three of them with Mario on the same level, but in the basement plugs, they just flicker. 1 Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted December 7, 2012 Author Share Posted December 7, 2012 Try a different power plug socket, my Coleco Vision does that on plugs upstairs, but in the basement it works great. ie.. Fire balls in Donkey Kong would vanish but still be in play, if there were at least three of them with Mario on the same level, but in the basement plugs, they just flicker. I'm gonna try it tonight. By the way, I have an expansion module #1 to play Atari games. I can't play any coleco game with the module attached. Is it ok? If not, it could be a signal of lack of power supply... Quote Link to comment Share on other sites More sharing options...
NIAD Posted December 7, 2012 Share Posted December 7, 2012 Good luck with the test... hope it is as simple as a faulty electrical outlet although that could signal a need for more expensive repairs to your electrical wiring in the house. Hopefully it just the outlet. As far as the Atari Expansion Module #01... it completely takes over the ColecoVision console when attached and you can't play CV games again until you remove the EM #01. 1 Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted December 8, 2012 Author Share Posted December 8, 2012 Try a different power plug socket, my Coleco Vision does that on plugs upstairs, but in the basement it works great. ie.. Fire balls in Donkey Kong would vanish but still be in play, if there were at least three of them with Mario on the same level, but in the basement plugs, they just flicker. Different plug same issues. I'm yet to try ColecoHitman de-oxit spray in the slot. Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted December 12, 2012 Author Share Posted December 12, 2012 Sad news. Now my Coleco doesn't show the image of any game... Most times I get a black screen with noise, not always. Atarimax led blinks once and then no more life signal. EM#1 still works with Atari games... January I'll send my system and see if it can be fixed. If not, I'll get another Colecovision console. Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted March 24, 2014 Author Share Posted March 24, 2014 Sad news. Now my Coleco doesn't show the image of any game... Most times I get a black screen with noise, not always. Atarimax led blinks once and then no more life signal. EM#1 still works with Atari games... January I'll send my system and see if it can be fixed. If not, I'll get another Colecovision console. It's more than 12 months later. I sent it to be fixed. Cartridge slot had to be replaced. But it still have the same issues with sprites... Quest for the Golden Chalice is another game without sprites as many more I may discover. Oh, well, time to spend more on another Coleco... Quote Link to comment Share on other sites More sharing options...
youki Posted March 24, 2014 Share Posted March 24, 2014 Looks more the VDP to be replaced here. 2 Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted March 24, 2014 Author Share Posted March 24, 2014 What is the VDP? Quote Link to comment Share on other sites More sharing options...
+5-11under Posted March 24, 2014 Share Posted March 24, 2014 What is the VDP? Video Display processor. The video chip inside the CV. Part number TMS9928A for NTSC models. It usually has a heat sink attached to it. 1 Quote Link to comment Share on other sites More sharing options...
NIAD Posted March 24, 2014 Share Posted March 24, 2014 Could be the VDP or it could be a faulty Power Supply transformer. I'd look into acquiring another Power Supply from a trustworthy person (you know, someone here on AtariAge) and test things out before any further guessing on repairs. Even if it turns out to be something other than the Power Supply, you will then have a backup, which is becoming a necessity with the age of these items. Try to acquire the Canadian two-wire CV Power Supply. They are built much better and have seemed to stand the test of time better than there U.S. counterparts. 1 Quote Link to comment Share on other sites More sharing options...
opcode Posted March 26, 2014 Share Posted March 26, 2014 I bet it is the VDP... 1 Quote Link to comment Share on other sites More sharing options...
LidLikesIntellivision Posted March 26, 2014 Author Share Posted March 26, 2014 I'm going to think and decide between sending the console again for repair or buying a new one. In Brazil, the only current available in Mercado Livre goes for aprox. 450 USD (1.000 BRL). To import a new console can also be very expensive and a little risky. Quote Link to comment Share on other sites More sharing options...
ColecoDan Posted March 26, 2014 Share Posted March 26, 2014 I'm going to think and decide between sending the console again for repair or buying a new one. In Brazil, the only current available in Mercado Livre goes for aprox. 450 USD (1.000 BRL). To import a new console can also be very expensive and a little risky. You could buy the stuff you need and get document how tos from this sight then you just have to find an electronics guy that would be willing to fix for you. 1 Quote Link to comment Share on other sites More sharing options...
adamcon Posted March 27, 2014 Share Posted March 27, 2014 I'm going to think and decide between sending the console again for repair or buying a new one. In Brazil, the only current available in Mercado Livre goes for aprox. 450 USD (1.000 BRL). To import a new console can also be very expensive and a little risky. HOLY MOOLY!!!!! that is EXPENSIVE!! Trouble is, yo are not buying a new one, just another used one. 1 Quote Link to comment Share on other sites More sharing options...
opcode Posted March 27, 2014 Share Posted March 27, 2014 I'm going to think and decide between sending the console again for repair or buying a new one. In Brazil, the only current available in Mercado Livre goes for aprox. 450 USD (1.000 BRL). To import a new console can also be very expensive and a little risky. Try Santa Efigenia, in São Paulo, you might be able to find the VDP there, TMS9928. 1 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.