
SELF DIAG CODE MESSAGE U2
No C15
PHENOMENON DISPLAY CODE MAIN CODE U2 SUB CODE 06
LAMP
TITLE RAM (MCU PWB) trouble (read/write error)
DETAIL RAM (MCU PWB) read/write operation trouble
SECTION MCU PWB RAM
ITEM
TYPE (MODE) User Warning
Service YES Trouble YES
Other Other
OPERATION MODE All modes Machine operation when the
message is displayed
Stop
NOTE
BASIC CAUSE 1 RAM (MCU PWB) read/write operation trouble
CASE 1 No
TROUBLE POSITION
CAUSE
RAM (MCU PWB) read/write operation trouble
RAM (MCU PWB) trouble
REMEDY (Check)
(Remedy)
1) MCU PWB replacement
2) Reset the trouble with SIM 14.
3) Use simulations to set various set values and adjustment values.
(After work)
NOTE
SELF DIAG CODE MESSAGE C1
No C16
PHENOMENON DISPLAY CODE MAIN CODE CH SUB CODE
LAMP "CH" ON
TITLE Cabinet open/close detection switch trouble
DETAIL 1) Cabinet (operation unit) open/close detection switch malfunction
2) Cabinet (operation unit) open/close detection switch signal is not recognized.
SECTION Power PWB unit
ITEM
TYPE (MODE) User YES Warning YES
Service YES Trouble YES
Other Other
OPERATION MODE All modes Machine operation when the
message is displayed
Stop
NOTE
BASIC CAUSE 1 Cabinet (operation unit) open/close detection switch signal is not recognized.
CASE 1 No
TROUBLE POSITION
CAUSE
Cabinet (operation unit) open/close detection switch signal recognition error
1) Cabinet (operation unit) open/close detection switch trouble
2) MCU PWB cabinet (operation unit) open/close detection switch signal input circuit trouble
REMEDY (Check)
1) Cabinet (operation unit) open/close detection switch
2) MCU PWB cabinet (operation unit) open/close detection switch signal input circuit
(Remedy)
1) Cabinet (operation unit) open/close detection switch replacement
2) MCU PWB replacement
3) Power PWB replacement
(After work)
1) When the MCU PWB is replaced, perform simulations to input various set values and
adjustment values.
NOTE
FO-3800M
10 – 14
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