No.
Definition
Symptom Possible Cause
999 B
Program download error
The download (program, print
data, language data) from the IC
card does not execute normally.
• Board installed incorrectly
• BICU board defective
• Controller board defective
•
IC card defective
• NVRAM defective
• Loss of power during downloading
• Important Notes About SC999
• Primarily intended for operating in the
download mode, logging is not performed
with SC999.
• If the machine loses power while
downloading, or if for some other reason
the download does not end normally, this
could damage the controller board or the
PCB targeted for the download and prevent
subsequent downloading. If this problem
occurs, the damaged PCB must be
replaced.
6. Troubleshooting
192
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