Major Subassemblies; Connector Pin Assignments - Epson EL 3S/33 Product Information Manual

Major Subassemblies

connector coprocessor
J4
J11
\ I
mounting bracket

Connector Pin Assignments

Parallel Port Connector
pin 13
I
I
pin 25
Parallel Port Connector Pin Assignments
8 17 Selectin*
9 18 Signal ground
'Active low logic
power
supply
I
drive bays
(CN3)
pin 1
I
I
pin 14
Serial Port Connectors (CN4 and CN5)
Serial Port Connector Pin Assignments
main
system
board
Keyboard Connector (CON1)
pin 4 -b
Although the keyboard and mouse connectors are physically
identical, they cannot be used interchangeably.
Keyboard and Mouse Connector Pin Assignments
Pin 1 Signal
1
2 Resewed
3 Ground
VGA Port Connector (CN2)
pin 5
pin 10
pin 15
VGA Port Connector Pin Assignments
5/28/93
Epson EL 3S/33
pin 5
pin 2
pin 1
5 Clock
6 Resewed
pin 1
pin 6
pin 11
Epson EL 3S/33-3