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Messages - shenlung

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...I was wondering if u ever found out what wrong with the pole position with mountain and cloud problem

Hi, I'm pretty sure it was a bad socket on the Prom at 4L on the Video PCB that fixed this issue, I didn't write this one up, but I'd take a look at that part of the schematic and see if you can find anything.

ok, thats def in the rite section, its not socketed on my board, I will have to be very care full removing but first I'll check for dead/stuck lines. Do you know what programmable prom will substitute? looks like 1k x 4

thx

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Good day. I was wondering if u ever found out what wrong with the pole position with mountain and cloud problem. I'm fixing board with possible same problem. Board was dead, replaced 2 rams, couple eprom sockets. Left with this problem. I think it maybe the custom IC 8N but not sure.

https://www.youtube.com/watch?v=t37hfGr0leE

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