I may have made a mistake. I am acquiring an RFM with no sound that the problem has been identified as a bad Prism Card. The game plays fine, display is fine, but no sound. The connectors both on the prism card and others have been exonerated. The sound amplifier board has also been checked as good.

So it appears I may need a Prism Card. Since Nucore has ceased production of their stuff it looks like RFM's and SWE1 that are broken may be stuck in limbo until either Nucore starts up again, or a white knight design using modern PC hardware resolves the problem.

The good is the cabinet is next to mint and the playfield has no wear. I may have the Prism Blues.

Thanks Lloyd, I will check with Rob and the Down Under folks.

I saw this. If you read closely he is getting rid of it because it doesn't update. Price is a little steep for something not working all the way. Thank you for your response.

I would like to, but I believe he wants to sell as whole with the playfields. I will give him an email.

I will be picking the RFM tomorrow.

I have sent a PM response. Thank you.

Thanks to all who responded. I just wanted to provide an update. At the time of the first post I had not yet taken possession of the RFM.

After I got the machine I determined the the prism card had a bad DSP. All of the elements associated with a bad DSP were present. Error when attempting to adjust sound level. DSP failed to init message etc. This was the same conclusion reached by a tech of the previous owner of the machine.

I acquired a working Prism board and installed it with original daughter board ROMs. Things looked up as I heard the standard Williams/Bally sound with initialization. However, game play was not consistent and there was NO sound. However the error when adjusting the sound level was gone as was the DSP init failure or I should say failure to reset.

I looked through all of the my cables in the extensive cable collection acquired over the years and could not find a null modem cable with the correct connectors. So I ordered one and it arrived today. I downloaded the update manager and the 1.5 update. The machine was operating on 1.0 and likely had many different adjustments attempted by the previous tech in attempting to resolve the sound problem.

The RFM updated to 1.5 without any problems. I was amazed at the speed that the manager program exhibited in locating the 1.5 update in the download directory. I was concerned I was going to have to relocate the zip file and unzip in a different directory. But all went well.

The game works great now. The playfield has no wear, the cabinet is close to perfect and monitor has been rebuilt (word by previous owner that means new caps.) There is one game play problem where the ball becomes trapped in the upper left part of the playfield. I suspect a missing rubber. So that's the summary and conclusion to this post.