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Chapter 4. Initial Customizing Procedure
This chapter contains a recommended Initial Customizing Procedure Form. This form
should be used the first time the 3274 Control Unit is customized. Once the 3274 is
successfully customized, if changes are required or desired, the Modification Procedure
Form (Chapter 5) should be used.
When initial customizing is complete, the information on the Initial Customizing
Procedure Form should be copied onto the Configuration Data card supplied with the
3274. The card should be stored in the pocket on the inside of the 3274 operator access
door for future reference.
The following information should be entered by the planner on the Initial Customizing
Procedure Form:
1. The type of keyboard (typewriter or data entry) to be used by the operator.
Note: If using a 76- or 88-key Japanese English or Japanese Katakana keyboard,
specify the number of keys and keyboard type.
2. In step 1, the identification of each diskette to be used.
3. In step 7, enter the response to sequence number 031 (number of RPQ diskettes to
be used). If you have no RPQ diskettes, the response is O.
4. In step 8, use as a guide the section in Chapter 3 that applies to the model being
customized; enter the responses to be entered by the operator. Use the section of the
figure that applies to your configuration support.
In addition to the form, this chapter also contains:
• Keyboard diagrams showing the valid key positions for customizing (Figures 4-1 and
4-2).
• A diagram showing how to properly insert a diskette into the 3274 Control Unit
(Figure 4-3).
• A chart giving the meanings of and recommended actions for the operator codes that
may appear on the 3278 Display Station or 3279 Color Display Station during the
customizing procedure (Figure 4-4).
• Charts giving the meanings of and recommended actions for the 8421 indicator codes
that appear on the 3274 control panel during the customizing procedure (Figures 4-5
and 4-6).
• A chart giving the meanings of and recommended actions for the 8421 indicator codes
that could appear on the 3274 control panel during IML because of improper
customizing (Figure 4-7).
• A Printer Authorization Matrix Form to be used with sequence number 022 in
Chapter 3.
All the information listed above and the completed Initial Customizing Procedure Form
should be given to the operator who is to perform the customizing procedure at the 3278
or 3279 display station.
Chapter 4. Initial Customizing Procedure 4-1
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