Minolta Di551 Service Manual page 518

Warning
Classification
Code
Fan abnor- F52-01 FM13 (power supply cooling) EM sig-
mality nal was abnormal 2 seconds after
turning ON FM13. 2 seconds after
turning FM13 OFF and ON again, the
signal is still abnormal.
F52-02 The MAINFAN_EM signal was
abnormal 2 seconds after turning ON
FM1 (main body cooling /1). 2 sec-
onds after turning OFF and ON
again, the signal is still abnormal.
Motor abnor- F53-01 5 seconds or later after turning ON
mality M4 (fixing), an abnormal
MAINM_EM signal has been
detected for 1 consecutive second.
Operation E56-02 Communication between the ICB
panel abnor- (image control board) and OB1
mality (operation board 1) does not start
within 30 seconds after SW2 (sub
power) turns ON.
Fan Abnor- F62-01 FM301 (original conveyance motor
mality cooling) EM signal was abnormal 2
seconds after turning ON FM301. 2
seconds after turning FM301 OFF
and ON again, an abnormal detec-
tion signal is detected.
FN-113 SC77-01 The Shift Home Position Sensor
abnormality (PC10) does not go HIGH even after
the lapse of a given period of time
after M8 has been energized (to start
returning the Elevator Tray to its
home position).
The Shift Home Position Sensor
(PC10) does not go LOW even after
the lapse of a given period of time
after M8 has been energized (to start
moving the Elevator Tray for job off-
set).
SC77-02 The Elevator Tray Upper Limit Sen-
sor PQ (PWB-F) does not go LOW
even after the lapse of a given period
of time after M7 has been energized
(to start raising the Elevator Tray).
The Elevator Tray Upper Limit Switch
(S2) or Elevator Tray Lower Limit
Switch (S3) remains actuated for a
given period of time after M7 has
been energized.
Cause Machine response
The machine stops
immediately. RL1
(main) is turned OFF.
Operation panel does
not display normally.
The machine stops
immediately and RL1
(main) is turned OFF.
4-49
ELECTRIC PARTS LIST
Estimated
abnormal parts
FM13 (power supply cooling)
DCPS (DC power supply unit)
FM1 (main body cooling /1)
PRCB (printer control board)
M4 (fixing)
PRCB (printer control board)
ICB (image control board)
OB1 (operation board 1)
SCDB (scanner drive board)
FM301 (original conveyance
motor cooling)
PC10 (Shift Home Position
Sensor)
PC11 (Shift Motor Pulse Sen-
sor)
M8 (Shift Motor)
PWB-A (Control Board)
PWB-F (Elevator Tray Upper
Limit Sensor PQ)
S2 (Elevator Tray Upper Limit
Switch)
S3 (Elevator Tray Lower Limit
Switch)
M7 (Elevator Motor)
PWB-A (Control Board)