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34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
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AST RESEARCH, INC., TECHNICAL BULLETIN #TB-0380 02-08-88
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AST 5250 / KEYTRONIC 101 KEY ENHANCED KEYBOARDS
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Keytronic has a custom PROM chip known as the "KB101 EO kit."
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This chip is designed for use on PC's such as the ITT Xtra 286
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or other clones. The new PROM chip from Keytronic is designed
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to work with BIOS chips that do not recognize the EO (hex)
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prefix that some of the keys on their enhanced keyboard
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generate. The keys that this affects are the right <ctrl> and
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<ALT> keys, the arrow keys, the editing keys, and the <ENTER>
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key.
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Keytronic is distributing this PROM chip as a solution to the
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problem with some clone PC's that causes an error and makes the
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PC beep because of the two bytes received from the keyboard
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instead of the normal one byte. This chip is not compatible
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with the enhanced keyboard support available in AST- 5250
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packages. If this PROM chip is in a keyboard, the ASTKBD
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program should not be run and enhanced keyboard support should
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not be installed.
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