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4.4 The MZ-80B circuit diagrams
This section includes all MZ-80B circuit diagrams for reference. These diagrams are arranged
as
follows:
(I)
CPU board, block 1 : CPU signal system
(2)
CPU board, block 2
(3)
CPU board, block 3 : 8255 and PIO signal system
(4)
CPU board, block 4 : RAM signal system
(5)
CPU board, block 5
(6) CRT display control
(7) Cassette
tape
deck control
(8)
Power supply
(9) Graphic Memory 1 card (optional)
(10) Expansion
1/0
port
(optional)
(11) Graphic Memory 2 card (optional)