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Operating the 3270
Source: GA27-2742 Operator's Guide for IBM 3270
Information Display Systems
Operating Procedure
General Instructions
1.
Compose the test message. Write it On a slip of paper if helpful.
2.
If necessary, apply power to the display station. Press the CLEAR key and
then the RESET key. This will result in an unformatted screen with the cursor
in the upper left screen position.
3.
Enter the test message from the keyboard.
4.
If the Dial feature is installed, call the computer operator and establish a phone
connection as explained in the section "Dial Procedure".
5.
Press the TEST REQ key and note that the INPUT INHIBITED indicator
comes on.
6.
Check that the test pattern you requested is received at the selected display
station or printer. This completes the entry and replay for the frist R FT message.
Note: To check the Basic Test Pattern, you must enter data from the keyboard,
Also, if the display station is equipped with a selector pen, check selector pen
operation at this time. A step·by·step explanation of how to check the Basic
Test Pattern follows these general instructions.
7.
Repeat steps 1 through 6 for each succeeding RFT message until you have
completed the RFT series for your display or printer. As you enter a new
R FT message, the only change in the message format from the preceding
message is the test pattern identification number.
8.
Compare the test pattern received with the correct pattern as you finish each
test. If you do not receive a test pattern correctly, report it to your supervisor
and, if consistent with organizational policy, fill out an OPERATOR TROUBLE
REPORT.
PagA 5-49
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