Pcu Pwb Error; Details - Sharp AR-BC260 Service Manual

Main Sub
code code
L3 00 Mirror return trouble
L4 02 Paper feed motor lock trouble
06 Transfer belt lift motor trouble
07 Transfer belt motor trouble
11 Shift motor trouble
L8 01 Full wave signal not provided
02 Full wave signal width abnormality
04 Main power switch abnormality detection
PF 00 RIC copy inhibit signal reception
U0 00 ICU-OPE communication trouble (ICU/OPE
detection)
U1 01 FAX battery abnormality
02 RTC read trouble
U2 00 EEPROM read/write error (ICU detection)
11 EEPROM check sum error (ICU detection)
22 FAX backup SRAM memory check sum error
Production No. data discrepancy (ICU ⇔ ICU)
30
80 EEPROM read/write error (SCN)
81 Adjustment value check sum error (SCN)
90 EEPROM read/write error (PCU)
91 Adjustment value check sum error (PCU)
U4 02 ADU alignment plate operation abnormality
U6 00 Desk communication trouble
01 Desk tray 1 lift motor trouble
02 Desk tray 2 lift motor trouble
03 Desk tray 3 lift motor trouble
09 LCC lift motor trouble
10 Desk transport motor trouble
20 LCC communication trouble
21 LCC transport motor trouble
22 LCC 24V power abnormality
50 Desk incompatibility trouble
51 LCC incompatibility trouble
U7 00 RIC communication trouble
UC 02 CPT-ASIC trouble (MFP PWB trouble)

6. Details

Main Sub
Title

PCU PWB error

code code
A0 00 Display Lamp/Message
Phenomenon Detail
Section PCU PWB
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Content
When the power is turned
on, conformity of the PCU
PWB and the PCU ROM is
checked to be found that
there is no conformity.
PCU PWB trouble
Replace the PCU PWB.
PCU PWB mistaken
Replace the PCU PWB.
AR-BC260 TROUBLESHOOTING 11 - 3
Main Sub
Title Transfer charger trouble (Black)
code code
C2 10 Display Lamp/Message
Phenomenon Detail
Section Transfer
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Case 3 Cause
Check &
Remedy
Case 4 Cause
Check &
Remedy
Case 5 Cause
Check &
Remedy
Main Sub
Title Image data memory trouble
code code
E7 01 Display Lamp/Message
Phenomenon Detail
Section ICU PWB
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Case 3 Cause
Check &
Remedy
The difference between the
belt surface output and the
K-color patch density output
does not reach the specified
level. (Judged when
installing a new developing
unit.)
TC-K output abnormality
TC-K analog input/output
abnormality.
Replace the TC PWB.
MC output abnormality
Replace the MC PWB.
Transfer unit trouble
Replace the transfer unit.
PCU PWB trouble
Replace the PCU PWB.
Connector, harness trouble
(PCU PWB, TC PWB, MC
PWB, transfer unit)
Check contact. Replace the
harness. Replace the PWB.
The ICU image data
memory (SDRAM) cannot
be detected as 256MB or
more. The required SDRAM
capacity for the model is not
provided.
The SDRAM of ICU PWB is
not installed. The SDRAM
of ICU PWB is improperly
installed.
Check installation of the
SDRAM of ICU ASIC PWB.
The SDRAM of ICU PWB
does not operate properly.
Use SIM 22-10 to check the
capacity of the SDRAM.
Replace the SDRAM of ICU
PWB.
ICU PWB abnormality
Replace the ICU PWB.