Sharp AL-1611 Service Manual page 52

Main Sub
code code
E1 13 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
Check and Replace the E-Sort PWB.
remedy 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 Replace the E-Sort PWB.
remedy 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 Replace the E-Sort PWB.
remedy 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 Replace the E-Sort PWB. Replace the
remedy SIMM.
Check grounding of the machine.
17 Content E-Sort PWB image rotating RAM error
Detail E-Sort PWB image rotating RAM abnor-
mality
Cause An 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 Replace the E-Sort PWB.
remedy 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
Check and Check the connectors and harness of
remedy 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)
Detail of trouble
AL-1611/AL-1622 TROUBLE CODE LIST
10 – 2
Main Sub
code code
E1 81 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 Check the connectors and harness of
remedy 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 Check the connectors and harness of
remedy 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 Check the connectors and harness of
remedy the E-Sort PWB and the MCU PWB.
Check grounding of the machine.
Check the ROM of the E-Sort PWB.
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 and MCU PWB harness fail-
ure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data failure
Check and Check the connectors and harness of
remedy 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
times within 20msec).
Cause LSU connector disconnection or LSU's
inside harness disconnection or break-
age
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
Detail of trouble
10