Read Sharp AR-P350 / AR-P450 (serv.man8) Service Manual online
AR-P350 TROUBLE CODES-7
U1
01
Content
Battery abnormality
Detail
Backup SRAM battery voltage fall
Cause
Battery life
Battery circuit abnormality
Battery circuit abnormality
Check and
remedy
remedy
Check that the battery voltage is about 2.5V
or above.
Check the battery circuit.
or above.
Check the battery circuit.
U2
00
Content
EEPROM read/write error (Controller)
Detail
EEPROM write error
Cause
EEPROM trouble
EEPROM is not initialized.
Controller PWB EEPROM access circuit
trouble
EEPROM is not initialized.
Controller PWB EEPROM access circuit
trouble
Check and
remedy
remedy
Check that EEPROM is properly inserted.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
11
Content
Counter check sum error (Controller)
Detail
Counter data area check sum error
Cause
EEPROM trouble
Control circuit trouble by noise
Controller PWB EEPROM access circuit
trouble
Control circuit trouble by noise
Controller PWB EEPROM access circuit
trouble
Check and
remedy
remedy
Check that EEPROM is properly inserted.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
12
Content
Adjustment value check sum error
(Controller)
(Controller)
Detail
Adjustment data area check sum error
Cause
EEPROM trouble
Control circuit trouble by noise
Controller PWB EEPROM access circuit
trouble
Control circuit trouble by noise
Controller PWB EEPROM access circuit
trouble
Check and
remedy
remedy
Check that EEPROM is properly inserted.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
90
Content
EEPROM read/write error (Controller)
Detail
PCU EEPROM write error
Cause
EEPROM trouble
EEPROM is not initialized.
PCU PWB EEPROM access circuit trouble
EEPROM is not initialized.
PCU PWB EEPROM access circuit trouble
Check and
remedy
remedy
Check that EEPROM is properly inserted.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
91
Content
Memory check sum error (PCU)
Detail
PCU memory check sum error
Cause
EEPROM trouble
EEPROM is not initialized.
PCU PWB EEPROM access circuit trouble
Uninitialized E2PROM installed.
EEPROM is not initialized.
PCU PWB EEPROM access circuit trouble
Uninitialized E2PROM installed.
Check and
remedy
remedy
Check that EEPROM is properly inserted.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
Save the counter/adjustment values with the
DIAG simulation.
Use DIAG (SIM16) to cancel U2 trouble.
Replace the Controller PWB.
MAIN
SUB
U7
00
Content
RIC communication trouble
Detail
RIC communication trouble
Communication cable test error after turning
on the power or exiting DIAG.
Communication cable test error after turning
on the power or exiting DIAG.
Cause
Disconnection of connector and harness
RTC control PWB trouble
Control PWB (Controller) trouble
Malfunction by noise
RTC control PWB trouble
Control PWB (Controller) trouble
Malfunction by noise
Check and
remedy
remedy
Canceled by turning OFF/ON the power.
Check connector and harness in the
communication line.
Check connector and harness in the
communication line.
PF
00
Content
RIC copy inhibit signal is received.
Detail
Copy inhibit command from RIM (host) is
received.
received.
Cause
Judged by the host.
Check and
remedy
remedy
Inform to the host.
MAIN
SUB
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