Specifications

EPSON AMERICA, INC.
EPSON
Product Support Bulletin
Subject: Jumper Change on the Equity 386SX Plus Main Board
Date: 4/3/91
Page(s): 1 of 1
PSB No: S-0129
Originator: MWT
This bulletin is to inform you that, as of August 1990, an additional jumper (J6) has
been added to the Equity 386SX Plus system board. This was effective with factory
hard disk models of serial number 20B10020000 and higher.
The added jumper allows positive hardware enable/disable of the built-in VGA video
controller. This change makes it more convenient to use third-party add-in video
adapters.
Note that all factory single floppy disk drive models use the 6-jumper board and are
not affected by this change.
For additional Service information, please refer to Technical Information Bulletin
number EQ386SX+-001, dated 10/10/90, for more details.