MX-M316N TROUBLESHOOTING 7 – 22
(4)
Relation between the MFPC PWB LED status and errors
When the machine cannot be booted, check the LED status of the MFPC PWB to presume the error content and its cause.
<Process content and LED display>
*
: LED ON / O: LED OFF
<When an error occurs>
* In case of an error, the LED's flash as shown in the above table.
*
: LED ON / O: LED OFF
LED status (Lighting)
Process operation content
Cause for halt during operation
OOOO
CPU initial setting
Reus ASIC trouble
OOO
Memory adjustment
Memory and its peripheral circuit trouble
OO
O
Memory check
Memory and its peripheral circuit trouble
OO
-
-
O
OO
Program memory development
Memory-related trouble
O
O
Interruption-related initialization
Reus ASIC trouble
O
O
PCIe initialization
PCIe and its peripheral circuit trouble (SoC/ACRE, etc.)
O
Basic device initialization
Reus ASIC trouble
OOO
SD card initialization
SATA initialization
Reus ASIC trouble
SD card trouble
HDD trouble
O
OS initialization (1)
Reus ASIC trouble
O
O
Timer enabling
Reus ASIC trouble
O
Serial driver enabling
I2C driver enabling
Reus ASIC trouble
O
LCD initialization
Reus ASIC trouble
O
Image process IP initialization
Reus ASIC trouble
O
OS initialization (2)
Reus ASIC trouble
Main process
Reus ASIC trouble
LED status (Flashing)
Error content
Cause
OOO
Nonsupport memory
Memory trouble
OO
O
Nonsupport memory (access speed)
Memory trouble
OO
Nonsupport memory controller
Memory trouble
O
OO
DDR-PHY setting error
Reus ASIC trouble
O
O
Interruption handler process error
Reus ASIC trouble
OOO
Memory check error
Memory trouble
Memory combination error
Memory trouble
LED No.
D25/D24/D23/D22
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