EPSON Equity 4+

Main System Board Diagram

I1

CN13 nnnnn

parallel

port

 

 

 

I

 

serial port 2

serial port 1

mouse

keyboard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

/

SUPPly connectors

VGA feature connector

video memory - (512KB optional)

SIMM sockets

u41 LI

U42 L

u43 L

u44 L;

u45 L

U46 L

u47 L

,

u37

option card - riser board

connector

 

 

 

 

c1

 

 

 

 

-+ diskette drive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSCl

 

 

 

 

 

 

 

 

 

 

 

 

 

connector

5

 

 

 

 

 

 

 

 

\ hard disk dtive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

clc3-

 

connector

I)

 

 

;

 

 

:

 

 

 

u9

 

 

- DIP switches

5

 

 

 

 

 

z

 

=

 

 

 

 

 

 

 

 

 

=

=

external

 

cache sockets

>

z

-

I

 

 

jumpers

battery

I

J4-J9

processor in

connector

piezo-electric

 

PGA socket

 

speaker

 

10/1/93

EPSON Equity 4+ 3