Casio FE-700 MEX

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8-3. System lock code
The following error code appears on display and receipt when the machine is lock up.
Execute the Flag MAC or MAC operation to clear these errors.
Error code : Display : X - - - - - - - - -
Receipt : X ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
X : Lock code
Error sample : 3 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
Error code Error Name Meaning
1 Sequential trap The machine try to write to accumulator when the CPU is
hung up.
2 Memory write error Error happens when the CPU write the data to memory.
3 Trap error Abnormal address
7 Stack pointer over Abnormal address or stack pointer has an error
9 Memory creation error Shortage of memory
0 Other error CPU executes wrong jump vector before detect1,3 and
6 error code.