Nokia Alfaskop TT/386 User Manual page 80

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(9,9) Controller did not take the
"ReadlnputPort" command (code
CO). Wrong controller PROM
version or hardware malfunction.
(9, A) Controller did not answer the
''ReadlnputPort" (code CO) request.
Wrong controller PROM version or
hardware malfunction.
— • • — — • ------
(9,B) The controller did not take the
"WriteCCB" command (code 60).
This error will only appear if the
CMOS memory is faulty (checksum
or battery). Wrong controller PROM
version or hardware malfunction.
— — • •
(9,C) The controller did not take the
"WriteCCB" command (code 60)
setting up keyboard type. Wrong
controller PROM version or
hardware malfunction.
(A)
The CMOS clock/RAM is faulty.
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