Changes
/* Components */
16x 41256 (256Kx1 DRAM) ;replacing the CPC6128's 16 built-in 64Kx1 DRAMs
1x PAL 16L8 ;replacing the CPC6128's 16 built-in PAL
1x 74LS38 (Quad 2-input NAND, OC)
1x 74LS273 (8bit latch, of which only 6bit are used here)