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IntellivisionRevolution Forums » Colecovision » The Colecovision Forum » problems getting cv to work

problems getting cv to work

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1problems getting cv to work Empty problems getting cv to work Sat 21 Jul 2012, 7:07 pm


Hi, I have two CV2400 consoles and all the equip. that goes with it, including power supply. I cannot get a picture or sound. I have been trying to help a friend of mine get one of these games working for his grandkids. He has over 30 cartridges and thinks it would be cool for the kids.

I connect to the TV, not using the antenna switch that comes with the cv, but nothing happens. I have tried both channel 3 and 4. Does anyone have an idea wht the problem might be?

Thanks in advance for your response.

2problems getting cv to work Empty Re: problems getting cv to work Sat 21 Jul 2012, 9:41 pm



What kind of tv is it? If its a newer one are you using that rf adapter?

3problems getting cv to work Empty Re: problems getting cv to work Sat 21 Jul 2012, 9:49 pm



Hello, and welcome to our humble gaming community.

I would begin by looking at the power supply(s) with your two Colecovision consoles. Trouble is that the CV power supply has a four pin plug. One is +5v, one is -5v, one is +12v, and the other is a neutral return line. You need a multi-meter to properly test voltages on these pins. If any one pin does not have the proper voltage, then the system will not operate.

Assuming the power supply(s) is/are good, the next item I would suspect is the RF switch. Get rid of the original Coleco RF TV/game switch and use a RCA to coaxial plug adapter readily available at Radio Shack.

After that, the component that fails most often on Colecovision consoles is the infamous power switch. I recommend picking up a can of electronic parts aerosol cleaner from Radio Shack. Alternately, there is a product called Deoxit, but I do not know where to purchase it. Spray a liberal amount of the parts cleaner into the power switch and flip it on and off a few times (with the power supply unplugged). This should get rid of any grime inside and fix that if it is the problem.

After that, it gets into internal capacitors, chips, etc. and I am not in the know. A guy named Yurkie who has posted here only a couple times, but is a regular on Atari Age forums is the go to guy for Colecovision repair if it gets into the internal components.

4problems getting cv to work Empty Thanks for the responses! Sun 22 Jul 2012, 3:21 pm


Hey, Thanks for the heads-up on the on-ff switch, I will give that a try. I have tested the power supply and all these readings on my meter were exactly where they were supposed to be. As far as a TV, I have tried both RF inputs and video(RCA) inputs, but get nothing. It's like nothing is even connected to it. Both the consoles were supposed to have been tested and be in working order.

Thaks again for your responses, I will try the switches on the consoles to see if it works.

5problems getting cv to work Empty Re: problems getting cv to work Mon 23 Jul 2012, 11:20 pm



Have you tried another tv? Possibly even at a friends house, who knows right!?!?! :-)

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