Chapter 4. Operating Procedures; Preparing To Operate - IBM 1483 Operator's Manual

Chapter 4. Operating Procedures

Before you begin to operate the 1483, ensure that the display station is attached to a
powered, operational control unit or processor. Refer to Page 1-1 for a list of
compatible control units and processors.

Preparing to Operate

After the display station has been properly installed and connected to its control unit,
it is ready to operate online. To ensure that the display station is prepared for operating,
perform the following procedure. If you encounter operational difficulty or if the display
station malfunctions, refer to Chapter 7.
1) Turn the security lock key counterclockwise to unlock the keyboard.
2) Set the Power-On/Off switch to On ( | ) to turn on power.
3) An alarm sounds briefly. The cursor is displayed in the upper left corner of the
screen and the operator status row displays one of the following Ready symbols:
•
6
Control Unit Display Station.
4
•
2274, or an IBM 3274 Control Unit.
•
I or i – If attached to an IBM 4300 processor.
•
S – If attached to a MTX/MTC 1174 Network Controller or IBM 3174 Control
Unit.
The Power-On indicator is lit.
Note: Refer to "Operator Status Row Indicators" on Page 3-40 in this manual for an
explanation of all operator status row symbols.
4) If the Power-On indicator does not light, the cursor does not appear, or a display like
the one described above is not produced, refer to Chapter 7.
If B is displayed in the first character position of the operator status row, refer to
Chapter 7.
5) Adjust the Brightness control, the Contrast control, the Vertical Centering control,
and the Horizontal Centering control, if necessary.
701344-003
– If attached to a Telex 276 Control Unit/Display Terminal, or IBM 3276
– If attached to a Memorex Telex 1274, a Memorex Telex 1374, a Memorex
4-1