Epson Equity 286 PLUS Uživatelská příručka stáhnout pdf (Strana 21)

EQUITY II MCY BOARD Y147205000 & Y147206000 JUMPER CONFIGURATIONS

MCY board Y147205000

and Y1472056000

differences.

MCY P/N Y147206000

boards have the

following improve-

ments over the

Y147205000 board.

* Serial port works

over 1200 baud.

* Concurrent oper-

ation of 8087 &

optional Dynamic

RAM or EGA/VGA.

* Topview fix in-

corporated on

MCY (main) board.

Batt

Off

Reset Dip Switch

Vol.

Keyboard

JUMPER CONFIGURATIONS

* J1 and J2 should be in position 2 to enable DMA RAM refresh to the

option slots for expanded memory boards or EGA/VGA video boards.

The 8087 will work in DMA refresh mode with the Y147206000 board.

* J1 and J2 should be in position 1 to disable DMA RAM refresh.

The V30 runs about 20% faster in this position. The jumpers must be

in position 1 to enable an 8087 with the Y147205000 MCY board

* J3 and J4 should be in position 1 to use an IBM compatible keyboard.

* J3 and J4 should be in position 2 (default) for the Equity

keyboard.

NOTE: DO NOT ATTEMPT TO USE THE EPSON KEYBOARD WITH JUMPERS J3 AND

POSITION 1 AS DAMAGE MAY RESULT!

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Epson Equity 286 PLUS Uživatelská příručka Strana 21