UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Gemini 80-Bus System

john_newcombe · 13th Jul 2019, 3:04 pm

Thank you for your reply, this is very helpful and gives me some confidence that I am on the right track (no pun intended).

I have now removed all of the socketed chips, RAM, CRTC etc to try and remove as much as I can from the bus and I have visually inspected the tracks and soldering very carefully, however, the scope shows the same display. The remaining chips are soldered in and whilst I am happy to start the process of socketing these chips, it would be good to try and narrow things down beforehand.

I guess I could see if there is track I could break somewhere to give me a mid point in terms of the chip count to try and narrow things down a little.

13th Jul 2019, 3:04 pm	#162
john_newcombe Hexode Join Date: Apr 2019 Location: Skipton, North Yorkshire, UK. Posts: 252	Re: Gemini 80-Bus System Thank you for your reply, this is very helpful and gives me some confidence that I am on the right track (no pun intended). I have now removed all of the socketed chips, RAM, CRTC etc to try and remove as much as I can from the bus and I have visually inspected the tracks and soldering very carefully, however, the scope shows the same display. The remaining chips are soldered in and whilst I am happy to start the process of socketing these chips, it would be good to try and narrow things down beforehand. I guess I could see if there is track I could break somewhere to give me a mid point in terms of the chip count to try and narrow things down a little.