smoore Posted March 23 Author Share Posted March 23 Chatting with a bloke in the pub about this, he has a batch of CRT monitors from when he used to maintain machines for for pubs but nothing suitable. He did have an idea about using a video recorder to take the RF from the 400 and using the phono outs to connect to a more modern TV. Does that sound like an option? Cheers, Simon Quote Link to comment Share on other sites More sharing options...
smoore Posted March 23 Author Share Posted March 23 Found a TV in the garage with an RF input .... Quote Link to comment Share on other sites More sharing options...
drpeter Posted March 23 Share Posted March 23 (edited) 2 hours ago, smoore said: Found a TV in the garage with an RF input .... RF input to 'modern' LCD TVs from all Atari 8 bits often looks rubbish like this. I'm not sure if it's to do with signal strength, signal processing or what. The vertical bands down the left side of the screen are probably due to a poorly-designed RAM expansion board interacting with ANTIC DRAM refresh memory accesses. I had a 32K RAM expansion board in a 400 back in the day with this exact problem. Edited March 23 by drpeter Quote Link to comment Share on other sites More sharing options...
smoore Posted March 23 Author Share Posted March 23 28 minutes ago, drpeter said: RF input to 'modern' LCD TVs from all Atari 8 bits often looks rubbish like this. I'm not sure if it's to do with signal strength, signal processing or what. The vertical bands down the left side of the screen are probably due to a poorly-designed RAM expansion board interacting with ANTIC DRAM refresh memory accesses. I had a 32K RAM expansion board in a 400 back in the day with this exact problem. I was thinking the TV may be too new to process the signal - I'm going to keep looking for a proper old CRT and see what happens then. The seller mentioned that he thought the 48k upgrade was causing the interference, interesting that is you also mentioned. I guess I'll have to open her up and take a look at some point, when I'm feeling brave enough! Quote Link to comment Share on other sites More sharing options...
mimo Posted March 23 Share Posted March 23 5 hours ago, smoore said: He did have an idea about using a video recorder to take the RF from the 400 and using the phono outs to connect to a more modern TV It's a possibility, but you are adding another layer of processing, and it's the old adage of crap in , crap out. Quote Link to comment Share on other sites More sharing options...
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