Service manual

20
MTX SERIES BUS
The system Bus comprises the full Z80 A bus, power
supply rails, ROMpak enable (GROM), ROM page ports R0
to R2, RAM page ports P0 to P3 and serial clock lines
01 and 02.
All lines are externally available on J1, which is a 60
way (30 + 30) 0.1" card edge plug, or internally on J0
which is also a 0.1" 60 way card edge plug.
Note:- J10 also has keyway between 26 and 27
Note: (1) Jl0 is a mirror image of J0
(2) Component side = A
Solder side = B
MTX Service Manual