Specifications

Epson EL 4S/33
System l/O Address Map
Jumper Settings
Port Jumper Settings
Jumper
number
J2
J10
J11
J15***
J27
off*
1-2*
2-3
Non-interlaced mode
Enables diskette drive controller
Disables diskette drive controller
* Factory setting
** DOS automatically reassigns parallel and serial ports. Check your DOS
manual for mom information.
“‘Two pin jumper
Drive Assignment Jumper Settings
Drive assignment
Upper drive is A
Lower drive is A
* Factory setting
J17 J18
J19
J20
2-3 2-3 2-3 2-3
1-2* 1-2* 1-2* 1-2*
Hard Disk Drive Controller Jumper Settings
Hard disk controller
J25
Enable 1-2’
Disable
2-3
* Factory setting
** Two-pin jumper
J22**
On*
off
Built-in VGA Jumper Settings
Built-in VGA
Enable
I Disable
J36** J37**
On* On*
Off Off
* Factory setting
** Two-pin jumper
To use an external display adapter in an expansion slot, you
must disable the built-in VGA adapter.
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