AL-840 (serv.man9). AL800 840 Service Manual-Troubleshooting - Sharp Copying Equipment Service Manual (repair manual). Page 12

Read Sharp AL-840 (serv.man9) Service Manual online

No
C11
CASE 1
No
TROUBLE POSITION
CAUSE
Fusing temperature sensor (thermistor) signal recognition error
1) Fusing temperature sensor (thermistor) trouble
2) MCU PWB fusing temperature sensor (thermistor) input circuit trouble
REMEDY
(Check)
1) Fusing temperature sensor (thermistor)
2) MCU PWB fusing temperature sensor (thermistor) input circuit
(Remedy)
1) Fusing temperature sensor (thermistor) replacement
2) MCU PWB replacement
3) Reset the trouble with SIM 14.
(After work)
1) When the MCU PWB is replaced, perform simulations to input various set values and
adjustment values.
NOTE
CASE 2
No
TROUBLE POSITION
CAUSE
Heater lamp control signal trouble
1) MCU PWB heater lamp control circuit trouble
REMEDY
(Check)
1) MCU PWB
(Remedy)
1) MCU PWB replacement
2) Reset the trouble with SIM 14.
(After work)
1) When the MCU PWB is replaced, perform simulations to input various set values and
adjustment values.
NOTE
CASE 3
No
TROUBLE POSITION
CAUSE
Heater lamp drive trouble
1) Power PWB heater lamp drive circuit trouble
REMEDY
(Check)
1) Power PWB
(Remedy)
1) Power PWB replacement
2) Reset the trouble with SIM 14.
(After work)
NOTE
SELF DIAG CODE MESSAGE
U2
No
C12
PHENOMENON
DISPLAY
CODE
MAIN CODE
U2
SUB CODE
01
LAMP
TITLE
EEPROM (MCU PWB) trouble (counter data error)
DETAIL
EEPROM (MCU PWB) counter data trouble (data error)
SECTION
MCU PWB
EEPROM
ITEM
TYPE (MODE)
User
Warning
Service
Trouble
Other
Other
OPERATION MODE
All modes
Machine operation when the
message is displayed
Stop
NOTE
BASIC CAUSE 1
EEPROM (MCU PWB) counter data trouble (data error)
CASE 1
No
TROUBLE POSITION
CAUSE
EEPROM (MCU PWB) counter data trouble
EEPROM (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
10 – 12
Page of 27
Display

Click on the first or last page to see other AL-840 (serv.man9) service manuals if exist.