“Confidential, Do Not Duplicate without written authorization from NEC.”
4-27
TROUBLESHOOTING
MMS Comm Fail
MMS Fan Stop
MMS Fail
Yes
No
Is the Built-in MMS selected by menu setting?
Select the Built-in MMS.
Yes
No
Is there any fault in connections with the MMS,
such as disconnection or breakage?
Adjust the faulty spot.
MM2000B error
(Refer to MM2000B Service Manual.)
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