Minolta DI750 - MANUAL SERVICE Service Manual page 269

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Warning
Classification
code
Counter
F53-04
When C (K) (key counter) which has
abnormality
been OFF is turned ON, a trouble
detection signal (blown fuse/24 V off)
is detected.
F53-05
When C (K) (key counter) which has
been OFF is turned ON, a trouble
detection signal (blown fuse) is
detected. A trouble detection signal
(24V off) is not detected.
Power
F53-06
During serial initial communication, a 12
supply
V blow fuse signal (AC drive) is detected.
abnormality
F53-07
During serial initial communication, a 5 V
blow fuse signal (AC drive) is detected.
F53-08
A 12V trouble detection signal is
detected on PRCB (printer control
board).
F53-09
An excessive AC voltage error
signal is detected.
F53-10
During serial initial communication, a 5 V
blow fuse signal (DC drive) is detected.
F53-11
A trouble detection signal (solenoid/
blown motor fuse) is detected at the
time of start. A trouble detection
signal (24V off) is detected.
F53-12
A trouble detection signal (solenoid/
blown motor fuse) is detected at the
time of start. A trouble detection
signal (24V off) is not detected.
Operation
E56-2
Communication between the ICB
panel
(image control board) and OB1
abnormality
(operation board 1) does not start
within 30 seconds after SW1 (main)
is turned ON.
F56-11
When SW1 (main switch) was turned
ON, area which had not been written
by ISW was detected in the operation
section control program (O1).
F56-12
When SW1 (main switch) was turned
ON, area which had not been written
by ISW was detected in the operation
section control program (O2).
F56-13
When SW1 (main switch) was turned
ON, area which had not been written
by ISW was detected in the operation
section control program (O3).
Operation in case of
Causes
warning occurrence
Error code is not dis-
played on operation
panel. It is displayed
only on data collection,
list output. However,
the counter does not
function.
The machine stops
immediately. RL1
(main) is turned OFF.
Error code is not dis-
played on operation
panel. It is displayed
only on data collection,
list output.
The machine stops
immediately. RL1
(main) is turned OFF.
Operation panel does
not display normally.
4 - 65
ERROR CODE LIST
Estimated abnormal
parts
ACDB (AC drive
board)
C (K) (key counter)
PRCB (printer
control board)
Abnormal voltage
input
PRCB (printer
control board)
Solenoids
Motors
ICB (image control
board)
OB1 (operation
board 1)
O1 program
O2 program
O3 program

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