Started by WacKEDmaN, 09:50, 14 November 22
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Quote from: WacKEDmaN on 06:42, 15 November 22they are also bad.. corresponding to the output..at the ram..
Quote from: eto on 15:15, 16 November 22If any data line is constantly low or high, it won't boot. This can be caused by any of the ICs that is related to the data lines. I had it twice with the ROM. I first thought ROM should not impact it as the external ROM should take over, but since the ROM set one data line to 0, the external ROM could not work either.
Quote from: WacKEDmaN on 14:36, 17 November 22...could it still be the 153 mux ICs causing this?... or am i still looking to the PIO or printer port for the data errors?(lower rom board is now starting to show signs of life.. but colored screens.. no proper boot)
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