Two Black Characters Turning Around; (The Display Changes To "Communication Error" If You Leave Them As They Are); An Error Message Related To The Operation Panel Is Displayed - Oki C3200n Service Manual

(1-3)Two black characters turning around

(The display changes to "COMMUNICATION ERROR" if you leave them as they are)

Confirmation Items
(1-3-1)Confirm a status of the board installation
A connection status of the PU
board and CU board
Installation status of ROM
DIMM of the CU board
Confirm that an option RAM
DIMM/HDD is used for a CU
board
(1-3-2)Communication condition between CU-PU
Communication condition of
the CU side
Communication condition of
the PU side
(1-3-3)Implementation of the version-upgrade of the PU firm
Version-upgrade of PU Firm

(1-4)An error message related to the operation panel is displayed.

Confirmation Items
(1-4-1)Error Messages
Error Message
42615101TH Rev.8
Confirmation Tasks
Confirm the fit between CUIF connector of the PU board and
PUIF connector of the CU board.
(The state of PU-CU board fit)
Check half connection or incomplete plug-in of ROM DIMM.
Confirm that it operates without RAM DIMM or HDD.
Check half connection or incomplete plug-in.
Confirm RAM-DIMM or HDD is an OKI model.
Confirm that a signal is outputted to CUIF connector of PU
board (PRN PCB).
10pin:STSRDY-N(CU Ready Signal)
11pin:CMDIN-N(CU-->PU Data)
The signal is outputted from 11pin in a normal situation.
Confirm that a signal is outputted to CUIF connector of PU
board (PRN PCB).
9pin:STSOUT-N(PU-->CU Data)
12pin:CMDRDY-N(PU Ready Data)
The signal is outputted from 12pin in a normal situation.
It is displayed after the version-upgrade of PU firm.
Confirm a PU version with Menu print or a maintenance
function.
Confirmation Tasks
Confirm the content in a list of the error message.
Oki Data CONFIDENTIAL
Action at NG
Loose a screw
installing the board to
adjust board fit position
for an improvement of
the fit status.
Adjust the plug-in
condition of DIMM
correctly. Change
DIMM as required.
Correct the insert
condition of DIMM.
Exchange an option as
required.
Change ROM DIMM
CU or CU board.
Change PU board.
Implement confirmation
such as (1-3-1) and
(1-3-2) if it reappears
after restarting the
power.
Action at NG
Follow the instructions.
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