DOWNLOAD Sharp DM-2000 (serv.man7) Service Manual ↓ Size: 272.12 KB | Pages: 15 in PDF or view online for FREE

Model
DM-2000 (serv.man7)
Pages
15
Size
272.12 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / DM2000 Service Manual-Trouble Code List User Setup
File
dm-2000-sm7.pdf
Date

Sharp DM-2000 (serv.man7) Service Manual ▷ View online

2. Details of trouble codes
Main 
code
Sub
code
Detail of trouble
E1
00
Content
E1-
∗∗
 Communication trouble
between MCU and E-Sort.
Detail
Communication setup error,
framing, parity, protocol error
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
10
Content
E-Sort PWB trouble
Detail
Communication trouble between
MCU and E-Sort
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
11
Content
E-Sort PWB ASIC error
Detail
E-Sort PWB ASIC abnormality
Cause
An ASIC abnormality is detected
in the E-Sort PWB.
Control circuit hung up due to
noises
ASIC peripheral circuit error
Check and
remedy
Replace the E-Sort PWB.
Check grounding of the machine.
12
Content
E-Sort PWB CODEC error
Detail
E-Sort PWB CODEC error
Cause
A CODEC error is detected in the
E-Sort PWB.
Control circuit hung up due to
noises
CODEC peripheral circuit error
Check and
remedy
Replace the E-Sort PWB.
Check grounding of the machine.
13
Content
E-Sort PWB Flash ROM error
Detail
E-Sort PWB Flash ROM
abnormality
Cause
A Flash ROM abnormality is
detected in the E-Sort PWB.
Control circuit hung up due to
noises
Flash ROM peripheral circuit error
E1
13
Check and
remedy
Replace the E-Sort PWB.
Rewrite the flash ROM data.
Check grounding of the machine.
14
Content
E-Sort PWB Work RAM error
Detail
E-Sort PWB Work RAM abnormality
Cause
A Work RAM abnormality is
detected in the E-Sort PWB.
Control circuit hung up due to
noises
RAM peripheral circuit error
Check and
remedy
Replace the E-Sort PWB.
Check grounding of the machine.
15
Content
E-Sort PWB Page Memory error
Detail
E-Sort PWB Page Memory
abnormality
Cause
A Page Memory abnormality is
detected in the E-Sort PWB.
Control circuit hung up due to
noises
Page Memory peripheral circuit
error
Check and
remedy
Replace the E-Sort PWB.
Check grounding of the machine.
16
Content
E-Sort PWB SIMM error
Detail
E-Sort PWB SIMM abnormality
Cause
A SIMM abnormality is detected in
the E-Sort PWB.
Control circuit hung up due to
noises
SIMM peripheral circuit error
Check and
remedy
Replace the E-Sort PWB.
Replace the SIMM.
Check grounding of the machine.
17
Content
E-Sort PWB image rotating RAM
error
Detail
E-Sort PWB image rotating RAM
abnormality
Cause
A image rotating RAM abnormality
is detected in the E-Sort PWB.
Control circuit hung up due to
noises
Image rotating RAM peripheral
circuit error
Check and
remedy
Replace the E-Sort PWB.
Check grounding of the machine.
80
Content
E-Sort PWB communication
trouble (protocol)
Detail
Communication trouble between
MCU and printer PWB (Protocol
error)
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
DM-2000
9  –  2
E1
80
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
81
Content
E-Sort PWB communication
trouble (Parity)
Detail
Communication trouble between
MCU and printer E-Sort (Parity
error)
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
82
Content
E-Sort PWB communication
trouble (Overrun)
Detail
Communication trouble between
MCU and E-Sort PWB (Overrun
error)
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
84
Content
E-Sort PWB communication
trouble (Framing)
Detail
Communication trouble between
MCU and E-Sort PWB (Framing
error)
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
E1
88
Content
E-Sort PWB communication
trouble (Time-out)
Detail
Communication trouble between
MCU and E-Sort PWB (Time-out
error)
Cause
E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure
Check and
remedy
Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.
E7
03
Content
LSU trouble
Detail
After the polygon motor becomes
active, BD signal (HSYNC) from
the LSU is not detected at the
specified times (41 
± 10 times
within 20msec).
Cause
LSU connector disconnection or
LSU’s inside harness
disconnection or breakage
Polygon motor rotation abnormality
Improper positioning of the laser
home position sensor in the LSU.
Laser power voltage failure
Laser emitting diode abnormality
MCU PWB abnormality
Check and
remedy
Improper connection of the LSU
connector
Check the polygon motor
operation with SIM 25-10.
Check printing with SIM64-1.
Check laser emission of laser
emitting diode.
Check the LSU unit.
Check the MCU PWB.
04
Content
CCD white level trouble
Detail
CCD white reference level which
is read during the copy lamp
lighting is abnormal.
Cause
Flat cable installation failure to
CCD unit
Dirt on the mirror, lens, and
reference white plate
Copy lamp lighting failure
CCD unit installation failure
CCD unit abnormality
MCU PWB abnormality
Check and
remedy
Clean the mirror, the lens, and the
reference white plate. 
Check the copy lamp (SIM 5-3)
ON.
CCD unit check
MCU PWB check
05
Content
CCD black level trouble
Detail
CCD black level which is read
while the copy lamp is off is
abnormal.
DM-2000
9  –  3
E7
05
Cause
Flat cable installation failure
CCD unit abnormality
MCU PWB abnormality
Check and
remedy
Check flat cable installation to the
CCD unit.
CCD unit check
MCU PWB check
H2
00
Content
Thermistor open detection
Detail
Fusing thermistor open
Cause
Thermistor defect
MCU PWB defect
Fusing section connector contact
failure
Power failure
Fusing unit not installed
Check and
remedy
Check the harness and the
connector of the thermistor and
the MCU.
Clear the self diag display with
SIM 14.
H3
00
Content
Heat roller abnormally high
temperature
Detail
Fusing temperature of 220 
240˚C.
Cause
Thermistor defect
MCU PWB defect
Fusing connector connection failure
Power failure
Check and
remedy
Check the heater lamp blinking
with SIM 5-2.
When the lamp blinks normally:
Check the thermistor and the
harness. Check the MCU PWB
thermistor input circuit.
When the lamp lights up instead
of blinking:
Check the lamp control circuit of
the power PWB and the MCU
PWB.
Clear the trouble with SIM 14.
H4
00
Content
Heat roller abnormally low
temperature
Detail
When the temperature does not
reach 155˚C within 55 sec after
turning on the power, or when it
falls under 145˚C during printing,
or when it falls under 100˚C
during pre-heating.
Cause
Thermistor failure
Heater lamp failure
MCU PWB failure
Thermostat failure
Power failure
Interlock switch failure
Check and
remedy
Check blinking of the heater lamp
with SIM 5-2.
When the lamp blinks normally:
Check the thermistor and the
harness.
Check the MCU PWB thermistor
input circuit.
H4
00
Check and
remedy
When the lamp does not light:
Check for heater lamp
disconnection or thermostat
disconnection.
Check the interlock switch.
Check the power PWB and MCU
PWB lamp control circuit.
Clear the trouble with SIM 14.
L1
00
Content
Mirror base feed trouble
Detail
The mirror home position (MHPS)
does not turn off though the feed
operation is completed during
mirror initial operation after turning
on the power.
The mirror home position (MHPS)
does not turn off during shading
operation.
The mirror home position (MHPS)
does not turn on when the mirror
base is returned for the specified
time after copy feed is started and
SPF scanning position shift is
performed.
Cause
Mirror unit defect
Mirror home position sensor defect
MCU PWB defect
Scanner wire disconnection
Check and
remedy
Check the scanning operation with
SIM 1-1.
L3
00
Content
Mirror base return trouble
Detail
The mirror home position (MHPS)
does not turn on though the mirror
base returning is completed during
mirror initial operation after turning
on the power.
The mirror home position does not
turn on when the mirror is
returned to the home position
during shading.
The mirror home position (MHPS)
does not turn on when the mirror
base returning is completed for
the specified time (about 6 sec)
after copy return start.
Cause
Mirror unit
Mirror home position sensor defect
MCU PWB defect
Scanner wire disconnection
Check and
remedy
Check the scanning operation with
SIM 1-1.
L4
01
Content
Main motor lock
Detail
The main motor encoder pulse is
not detected for 400msec.
Cause
Main motor defect
Harness disconnection between
the MCU PWB and the main
motor.
Control circuit failure
Check and
remedy
Check the main motor operation
with SIM 25-1.
Check the harness and the
connector between the MCU PWB
and the main motor.
DM-2000
9 – 4
L6
10
Content
Polygon motor lock
Detail
The lock signal (the specified
rotation speed signal) is not
supplied within the specified time
(about 6 sec)after starting the
polygon motor rotation.
Cause
LSU connector disconnection or
harness disconnection in the LSU.
Check and
remedy
Check the operation of the
polygon motor with SIM 25-10.
Check the harness and the
connector connection.
LSU replacement
L8
01
Content
Zero cross pulse (FW) trouble
Detail
Zero cross pulse width is shifted
by 55Hz 
± 10% or more.
Cause
MCU PWB defect
Power unit breakdown
Check and
remedy
Check the harness and the
connector.
MCU PWB replacement
Power unit replacement
U2
04
Content
EEPROM serial communication
error
Detail
Error in communication with
EEPROM
Cause
EEPROM failure
Installation of uninitialized EEPROM
MCU PWB EERPOM access
circuit failure
Check and
remedy
Check that the EEPROM is
properly set.
To prevent against loss of
counter/adjustment values, record
the values with simulation.
U2 trouble cancel with SIM 16
MCU PWB replacement
11
Content
Counter check sum error
Detail
Counter check sum value stored
in the EEPROM is abnormal.
Cause
EEPROM failure
Control circuit hung up by noises
MCU PWB EEPROM access
circuit defect
Check and
remedy
Check that the EEPROM is
properly set. 
To prevent against loss of
counter/adjustment values, record
the values with simulation.
U2 trouble cancel with SIM 16
MCU PWB replacement
12
Content
Adjustment value check sum error
(EEPROM)
Detail
Adjustment value data area check
sum error
Cause
EEPROM failure
Control circuit hung up by noises
MCU PWB EEPROM access
circuit failure
U2
12
Check and
remedy
Check that the EEPROM is
properly set.
To prevent against loss of
counter/adjustment values, record
the values with simulation.
U2 trouble cancel with SIM 16
MCU PWB replacement
U3
29
Content
Mirror base home position error
Detail
Home position is not detected
when starting mirror base shift.
Cause
Mirror unit defect
Mirror home position sensor defect
MCU PWB defect
Scanner wire disconnection
Check and
remedy
Check the scanning operation with
SIM 1-1.
U9
00
Content
U9-
∗∗
 Communication trouble
between MCU and OPE (OPE
detection)
Detail
Communication setup error,
framing, parity, protocol error
Cause
Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure
Check and
remedy
Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.
Check the ROM of the operation
control PWB.
80
Content
Operation control PWB
communication trouble (Protocol)
Detail
Communication trouble between
MCU and the operation control
PWB (Protocol error)
Cause
Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure
Check and
remedy
Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.
81
Content
Operation control PWB
communication trouble (Parity)
Detail
Communication trouble between
MCU and the operation control
PWB (Parity error)
Cause
Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure
Check and
remedy
Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.
82
Content
Operation control PWB
communication trouble (Overrun)
Detail
Communication trouble between
MCU and the operation control
PWB (Overrun error)
DM-2000
9  –  5
Page of 15
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  • DOWNLOAD Sharp DM-2000 (serv.man7) Service Manual ↓ Size: 272.12 KB | Pages: 15 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp DM-2000 (serv.man7) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp DM-2000 (serv.man7) Copying Equipment. Information contained in Sharp DM-2000 (serv.man7) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.