EPSON Progression 4
Main System Board Diagram
alternate
VGA feature
connector
VGA video
parallel
serial 2
serial 1
keyboard
,
,
P I
I n
I n
108
1
131
u 9 7
E
l
103
n
E
l
102
E
l
100
r - l
u75
u53
u77
a
n
u54
u57
u79
u59
q
u37
u12
c
l
L13
0
SIMM2
option board
riser card
FDD
connector
HDD
connector
EPSON Progression 4-4
5/3/93
