IBM 3270 Manual page 17

Loading the Control Program from Your
System Diskette .
1. Turn off your system unit.
The On/Off switch is on the right side of the
unit.
2. Raise the lever on diskette drive A.
3. If there is a diskette in drive A remove it.
4. Insert your system diskette into diskette drive
A.
5. Push down the lever on drive A.
6. If you have a color display, turn it on.
The On/Off switch for the color display is
located near the lower, right corner of the
display. The monochrome display does not
have an au/Off switch.
7. If you have a monochrome or color display,
turn the brightness control clockwise as far
as it will go.
8. If you have an expansion unit, turn it on.
The expansion unit looks like the system unit
but it doesn't have any diskette drives in it.
The On/Off switch is on the right side of the
unit.
9. Turn on your system unit.
That's all there is to it. The next thing you will
see is the Power-On Self Test. Continue with the
next section "Did the POST Run Co·rrectly?" on
page 1-7.
1-6 Book 3 - Using the Control Program