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Document ID: YAST-3LCQCY |
IBM 3153 ASCII Terminal Display - Function keys not working
Applicable to: World-Wide
Symptom:
3153: F1, F3, F7, F8, F12, shift-F1, shift-F12 keys are not working.
Background Information:
Function keys typically sends the host an ASCII character sequence when pressed. The ASCII character sequence needs to
match what the host operating system or application. The host operating system or application then determines how to process the function key that was pressed.
Function keys can be re-defined from the 3153 Setup menus and also can be redefined from the host.
The supported function keys are also emulation dependent. For example: IBM 3151 Emulation supports 36 function keys (unshifted, shifted, Control-shift F1 to F12). IBM 3153 emulation does not support Alt-shift F1 to F12.
3151 emulation supports:
- F1 to F12 (requires unshifted F1 to F12)
- F13 to F24 (requires shift F1 to F12)
- F25 to F36 (requires ctrl-shift F1 to F12)
- IBM 3151 Emulation 'Turnaround Character' determines if the function keys will work properly.
- DEC VT200 Emulation supports F6 to F20 function keys.
- WYSE 50/60 Emulation supports 32 function keys (unshifted, shifted F1 to F16).
When configured for 3151 emulation, the 3153 Function Keys (F1 to F36) default values are:
Key ASCII Sequence
F1 Esc a LTA
F2 Esc b LTA
(unshift F1 to F12)
F11 Esc k LTA
F12 Esc l LTA
F13 Esc ! a LTA
F14 Esc ! b LTA
(shift F1 to F12)
F23 Esc ! k LTA
F24 Esc ! l LTA
F25 Esc " a LTA
F26 Esc " b LTA
(ctrl-shift F1 to F12)
F35 Esc " k LTA
F36 Esc " l LTA
LTA is the 3153 Turnaround Character = CR, ETX, EOT, DC3
- For RS/6000 Attach: Recommend 'Turnaround Char' = 'CR'
- For AS/400 Attach: Recommend 'Turnaround Char' = 'ETX'
Recommended Solution:
Persons need to be familiar with:
- Host operating system or application requirements.
- How and what function keys are supported based on the emulation (IBM, WYSE, SCO CONSOLE)
- Were the function keys re-defined in 3153 setup menus or from the host operating systems or application.
When configured for IBM 3151 emulation, in most cases the 3153 Turnaround Character is incorrect. In 3153 setup
menu:
- For RS/6000 Attach: Recommend 'Turnaround Char' = 'CR'
- For AS/400 Attach: Recommend 'Turnaround Char' = 'ETX'
If Turnaround Character is set correctly, contact a systems administrator, host operating system or application developer.
Keywords: D/T3153 3153 3151 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23
F24 Shift Ctrl Control Alt Alternate Key Working Function Key Keys RS/6000 RS6000 AIX RISC UNIX
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General Information | |
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Date Created |
27-08-97 | |
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Last Updated |
03-12-98 | |
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Revision Date |
17-11-99 | |
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Brand |
IBM Monitors | |
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Product Family |
Terminals | |
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Machine Type |
3153 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
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