Panasonic KX-T336 System Reference Manual page 402

1 DATA ERROR No. 1 Probable Cause
I
Countermeasure
I
030
A checksum error has been detected.
Communication line is defective, or backup
data is destroyed.
031 Improper data is received.
Communication link is defective, or backup
data is destroyed.
040
041
Execution is impossible during off-line.
Impossible change such as
[INS] + [INS], [OUS] + [OUS]
is attempted.
Execute during on-line.
Impossible.
042 Some required items are omitted.
Enter the required items.
1 O-D-7
(21292)