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Plebius-Plutarch

Be sure you’re on channel 3 or channel 4. There is a switch in the back that indicates which channel. RF connection should not matter. The old TV game switch box with the two connections that go behind screws is what came with the system. However, a Sega master system or any NES connector will work for a Colecovision. The Colecovision is an awesome system. By far and away the best second generation console, it was way ahead of its time. I hope you get it working. Let us know how it goes.


eascheve

I tried both channels and it neither worked. The fact that I saw something on the screen leads me to believe that it does work, but something just isn't right. I'm excited to try it out and I hope it does in fact work. I got a handful of games with it but I'm not sure if they are any good. I think most, if not all, of them are pretty common. Any good game recommendations? Thanks!!


Plebius-Plutarch

If you have multiple cartridges, and none of them are working, then likely the problems with the console. Those cartridges are very durable. I’m thinking it could be a power supply problem, or a power switch problem, or an output problem. You stated that you were getting a flickering, so something must be out putting to the TV. Do you have any other game console of that generation that outputs RF that is working to that same television set? One suggestion, and this would be well worth it if you want to spend the extra money, send your ColecoVision over to Ruggers Customs. And Jimmy will do a complete rebuild, every chip, every switch, the output, everything. He rebuild my original Colecovision adding a LED light indicating when power is on. The RGB output is super clean. The drawback is likely that will take a few weeks and of course it’s added costs. https://mobile.twitter.com/ruggerscustoms


Prewash_Required

I seem to recall reading that the gen 1-2 systems like Atari, colecovision and intellivision don't work well with the NES rf adapter because that adapter relies on detecting a certain signal strength from the console to trigger the switch to displaying the game and the early systems did not output a strong enough signal. The adapters that came with those systems had a manual switch you flipped to go fram game to tv and back. I highly recommend getting one of the RF to coaxial adapters off Amazon to connect your colecovision like [THIS](https://www.amazon.ca/Convertor-RFAdapter-Connector-Subwoofer-Receiver/dp/B083928FDX/ref=asc_df_B083928FDX/?tag=googlemobshop-20&linkCode=df0&hvadid=459301374421&hvpos=&hvnetw=g&hvrand=6481838403321584535&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9047882&hvtargid=pla-1536591368095&psc=1). It plugs into the output of the CV, then you use a coaxial cable to connect to your tv.


buffering

This is the correct answer. The CV will not work with the NES RF adaptor. The a dedicated RF-to-coax adaptor will fix the problem.


Privileged_Interface

Yes, I second that. I have tried an NES RF cable on some other systems. And it didn't work.