10-17
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Only training and service purposes
CHECKING FLOW CHART BY FAILURE
Key does not input
Check the Control Lock operation.
Nomal: unlock
No key input
END
END
END
No
No
Yes
Yes
Cancel the Control Lock
(press the Control Lock key for three seconds)
Normal?
No
Yes
Replace the control panel
Replace the main PCB
Normal?
Normal?
Check the control panel and
Find the mechanical malfunction of key
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