DOWNLOAD Sharp AR-M550 (serv.man16) Service Manual ↓ Size: 814.54 KB | Pages: 47 in PDF or view online for FREE

Model
AR-M550 (serv.man16)
Pages
47
Size
814.54 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / (9) Self diag message and troubleshooting
File
ar-m550-sm16.pdf
Date

Sharp AR-M550 (serv.man16) Service Manual ▷ View online

AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 36
Main 
code
Sub 
code
Title
SRAM memory individual data 
check sum error 
U2
23
Phenomenon
Display
Lamp
Message
Details
Check sum error for every 
individual data in SRAM 
of the MFPC section 
when turning on the 
power
(If this error occurs, 
initialize the data related 
to the check sum error. 
(Communication 
management table, 
sender’s information, etc.)
Section
Controller
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
SRAM trouble
Remedy
Automatically initialize the 
data related to the check 
sum error by turning OFF/
ON the power.
Since the registered data 
are deleted, register the 
data again.
Note 
U2
23
Case 2
Trouble 
position/
Cause
Control circuit runaway 
due to noises
Remedy
Use SIM 16 to cancel the 
U2 trouble.
Note 
Case 3
Trouble 
position/
Cause
MFP control PWB 
EEPROM access circuit 
trouble
Remedy
Replace the MFP control 
PWB.
Note 
Main 
code
Sub 
code
Title
HDD section individual data check 
sum error (MFP control)
U2
50
Phenomenon
Display
Lamp
Message
Details
Check sum error for 
every individual data in 
HDD of the MFPC section 
when turning on the 
power
(If this error occurs, 
initialize the data related 
to the check sum error. 
(One-touch, group, 
program, etc.)
Section
Controller
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
HDD write/read error
Remedy
Automatically initialize the 
data related to the check 
sum error by turning OFF/
ON the power.
Since the registered data 
are deleted, register the 
data again.
Note 
Case 2
Trouble 
position/
Cause
Control circuit runaway 
due to noises
Remedy
Use SIM 16 to cancel the 
U2 trouble.
Note 
Case 3
Trouble 
position/
Cause
MFP control PWB HDD 
access circuit trouble
Remedy
Replace the HDD.
Replace the MFP control 
PWB.
Note 
AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 37
Main 
code
Sub 
code
Title
EEPROM red/write error (Scanner)
U2
80
Phenomenon
Display
Lamp
Message
Details
EEPROM red/write error 
(Scanner)
EEPROM communication 
trouble (NACK detection) 
Retry 3 times
Section
Scanner
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
EEPROM trouble
Remedy
Check that the EEPROM 
is properly installed.
In the simulation to 
prevent against delete of 
the counter data/
adjustment values, write 
down the counter/
adjustment values.
Note 
Case 2
Trouble 
position/
Cause
Insertion of EEPROM 
which is not initialized
Remedy
Use SIM 16 to cancel the 
U2 trouble.
Note 
Case 3
Trouble 
position/
Cause
Scanner PWB EEPROM 
access circuit trouble
Remedy
Replace the scanner 
PWB.
Note 
Main 
code
Sub 
code
Title
Memory check sum error (Scanner)
U2
81
Phenomenon
Display
Lamp
Message
Details
Memory check sum error 
(Scanner)
When counter data sum 
error is detected.
Section
Scanner
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
EEPROM trouble
Remedy
Check that the EEPROM 
is properly installed.
In the simulation to 
prevent against delete of 
the counter data/
adjustment values, write 
down the counter/
adjustment values.
Note 
U2
81
Case 2
Trouble 
position/
Cause
Control circuit runaway 
due to noises
Remedy
Use SIM 16 to cancel the 
U2 trouble.
Note 
Case 3
Trouble 
position/
Cause
Scanner PWB EEPROM 
access circuit trouble
Remedy
Replace the scanner 
PWB.
Note 
Main 
code
Sub 
code
Title
EEPROM read/write error (PCU)
U2
90
Phenomenon
Display
Lamp
Message
Details
EEPROM read/write error 
(PCU)
EEPROM communication 
trouble (NACK detection) 
Retry 3 times
Section
Engine
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
EEPROM trouble
Remedy
Check that the EEPROM 
is properly installed.
In the simulation to 
prevent against delete of 
the counter data/
adjustment values, write 
down the counter/
adjustment values.
Note 
Case 2
Trouble 
position/
Cause
Insertion of EEPROM 
which is not initialized
Remedy
Use SIM 16 to cancel the 
U2 trouble.
Note 
Case 3
Trouble 
position/
Cause
PCU PWB EEPROM 
access circuit trouble
Remedy
Replace the PCU PWB.
Note 
Main 
code
Sub 
code
Title
Memory check sum error (Scanner)
AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 38
Main 
code
Sub 
code
Title
Memory check sum error (PCU)
U2
91
Phenomenon
Display
Lamp
Message
Details
Memory check sum error 
(PCU)
When POF data/counter 
data sum error is 
detected.
Section
Engine
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
EEPROM trouble
Remedy
Check that the EEPROM 
is properly installed.
In the simulation to 
prevent against delete of 
the counter data/
adjustment values, write 
down the counter/
adjustment values.
Note 
Case 2
Trouble 
position/
Cause
Control circuit runaway 
due to noises
Remedy
Use SIM 16 to cancel the 
U2 trouble.
Note 
Case 3
Trouble 
position/
Cause
PCU PWB EEPROM 
access circuit trouble
Remedy
Replace the PCU PWB.
Note 
Main 
code
Sub 
code
Title
SPF tray lift-up trouble
U5
30
Phenomenon
Display
Lamp
Message
Details
SPF tray lift-up trouble
Lift-up trouble is detected 
5 times continuously.
Section
Scanner
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
STUD/STLD trouble
STUD does not turn on 
within the specified time.
STLD does not turn off 
within the specified time.
Remedy
Check the harness and 
the connector of the 
STUD and STLD.
Lift-up trouble unit check
Note 
Main 
code
Sub 
code
Title
SPF tray lift-down trouble
U5
31
Phenomenon
Display
Lamp
Message
Details
SPF tray lift-down trouble
STLD does not turn off 
within the specified time.
Section
Scanner
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
STUD/STLD trouble
STUD does not turn on 
within the specified time.
STLD does not turn off 
within the specified time.
Remedy
Check the harness and 
the connector of the 
STUD and STLD.
Lift-up trouble unit check
Note 
Main 
code
Sub 
code
Title
LCC lift motor trouble
U6
09
Phenomenon
Display
Lamp
Message
Details
LCC lift motor trouble
• The upper limit sensor 
does not turn on within 
24 sec after the lift 
motor is on.
• No rotation sensor 
signal is detected for 
0.2 sec or longer while 
the lift motor is on.
• The upper limit switch 
is on while the lift motor 
is on.
When the trouble occurs 
3 time continuously that 
the upper limit sensor 
does not turn on.
Section
LCC
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
Sensor trouble
LCC control PWB trouble
Gear breakage
Lift motor trouble
Remedy
Use SIM to check the 
sensor detection.
Use SIM to check the lift 
motor operation.
Use SIM 15 to cancel the 
trouble.
Note 
AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 39
Main 
code
Sub 
code
Title
LCC communication trouble
U6
20
Phenomenon
Display
Lamp
Message
Details
Communication trouble 
with the LCC.
Follows the 
communication protocol 
specifications.
Communication error, 
timing abnormality of the 
communication data and 
the communication signal 
line
Section
LCC
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
Improper connection or 
disconnection of the 
connector and the 
harness
Desk control PWB trouble
Control PWB (PCU) 
trouble
Malfunction caused by 
noises
Remedy
Canceled by turning ON/
OFF the power.
Check the connector and 
the harness in the 
communication line.
Note 
Main 
code
Sub 
code
Title
LCC transport motor trouble
U6
21
Phenomenon
Display
Lamp
Message
Details
LCC transport motor 
trouble
The lock detection signal 
is detected continuously 
for 1sec after delay of 
1sec from start of the 
motor.
Section
LCC
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
Motor lock
Motor RPM abnormality
Overcurrent to the motor
Desk control PWB trouble
Remedy
Use SIM 4-3 to check the 
transport motor 
operation.
Note 
Main 
code
Sub 
code
Title
LCC 24V power abnormality 
addition
U6
22
Phenomenon
Display
Lamp
Message
Details
LCC 24V power 
abnormality addition
24V power is not supplied 
to the LCC. (the LCC 24V 
power is not detected for 
1 sec or longer after 1 sec 
from power on)
Section
LCC
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
Improper connection or 
disconnection of the 
connector and the 
harness
Remedy
Check the connector and 
the harness of the power 
line.
Note 
Case 2
Trouble 
position/
Cause
LCC control PWB trouble
Power unit trouble
Remedy
Check the 24V power 
with the power unit and 
the LCC control PWB.
Note 
Main 
code
Sub 
code
Title
RIC communication trouble
U7
00
Phenomenon
Display
Lamp
Message
Details
Communication error with 
RIC (By PPC 
communication 
standards)
An error in the 
communication line test 
after turning on the power 
or canceling the 
simulation 
Section
Controller
Operation 
mode
Note 
Case 1
Trouble 
position/
Cause
Improper connection or 
disconnection of the 
connector and the 
harness
RIC control PWB trouble
Control PWB (MFP 
control) trouble
Malfunction caused by 
noises
Remedy
Canceled by turning ON/
OFF the power.
Check the connector and 
the harness in the 
communication line.
Note 
Page of 47
Display

Click on the first or last page to see other AR-M550 (serv.man16) service manuals if exist.