Jump to content
adam1977

Giving up on my CV, any takers for this project?

Recommended Posts

As per the title, I bought a CBS ColecoVision last year and it's never really worked properly, Initially the power supply was faulty, there was no +12v supply, so I connected up the missing voltage and it worked! I did manage to play some games, but the screen was jittery. I then cleaned the On/Off switch and whilst this helped the picture, it still wasn't great.

 

I then had the idea of doing an RGB mod on it to see if that would help, and so I bought a kit. Whilst I was waiting for that to arrive I bought an old PC power supply from eBay, with all the voltages the CV needs, so I chopped off the old connector and soldered it onto the power supply.

 

The RGB kit finally arrived and I fitted that, I followed the instructions and it didn't work, just a black screen. I checked all of my work and the voltages from the power supply a few times, but it's still dead...

 

I'm now at the point where i've given up, i'd like to cut my losses with it and pass it onto someone here (ideally) that can get it working. I paid £50 for it and i'd just like that for it, the RGB kit and power supply will of course be included, anyone fancy a challenge? 😊

Share this post


Link to post
Share on other sites

You mentioned that you'd paid in pounds, which makes me wonder if it's a PAL ColecoVision (with the TMS9929A graphics chip instead of the '28A).  If it is, I've been interested in getting a hold of a PAL ColecoVision board for a while.

 

We're developing a new RGB mod over here with the intent of solving all the known issues in the other ones.  The final mod should technically be PAL and NTSC compatible simultaneously, but I'd like to test it and see the results with my own eyes (and oscilloscope).

 

I'm sure international shipping costs will be an unmitigated disaster, but that's a price I'm willing to pay to have one of these on the workbench in person.

 

So... if you're sure it's got a '29A graphics chip, I'm your buyer! :D

  • Like 1

Share this post


Link to post
Share on other sites

For anyone that might be interested in working with adam1977 in the future: this transaction was an absolute delight.  Adam was super responsive, made every step of the process easy and clear, and was friendly above all else.

 

I just received a PAL Colecovision safely, in a well-packed box from a third of the way around the world in less than a week.

 

Thanks again!

  • Like 1

Share this post


Link to post
Share on other sites

Thank you Nicholas, glad it arrived safely and in one piece! I try my best 😊

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...