“Confidential, Do Not Duplicate without written authorization from NEC.”
4-5
TROUBLESHOOTING
Confirm that MM2000B is faulty.
Is the build-in MMS selected?
Yes No
Select the build-in MMS according to the menu.
Are connectors and cabling wrongly installed?
Yes No
Correct the wrong installations, if any.
Does operation still fail even though the software of the main unit side and MM2000B are updated?
Yes
The MM2000B is faulty. (Refer to the MM2000B Service Manual.)
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