Panasonic UF-890 - Confidential Mailbox Usage

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4.2 Improper LCD Display
Check connectors: CN11
(FCB PCB) and CN40
Was Firmware Update interrupted
before completion?
Does CN11, pin3, on the FCB
PCB measure +5VDC?
Replace the FCB PCB.
Replace the Panel PCB.
Yes
No
No
Follow the instruction on how to recover
from a Firmware Update failure. (Sect.5.9.3)
Yes
START
END
(PNL1 PCB).