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Maintenance / Re: Enterprise 64 dead
« Last post by Zozosoft on 2024.May.01. 15:42:23 »Z80 RD,MREQ,M1 are active? And ROM chip CE,OE?
It is looks the ROM not running.
Worst case if Dave dead Better if only ROM signal missing from Dave, can be substitued with few 74 chips.
Better case if some mechanical signal problems: contact problem at ROM socket. Broken via somewhere on board. SMD contact problem at Dave pins.
It is looks the ROM not running.
Worst case if Dave dead Better if only ROM signal missing from Dave, can be substitued with few 74 chips.
Better case if some mechanical signal problems: contact problem at ROM socket. Broken via somewhere on board. SMD contact problem at Dave pins.