Kyocera Mita DC-1560, Руководство по обслуживанию

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1AF
3-6-30
Measure the input voltage.
Check the contact between the power plug
and the outlet.
Check the front cover.
Check for continuity. If none, replace the
cord.
Check for continuity across the contacts. If
none, replace the main switch.
Check for continuity. If none, remove the
cause of blowing and replace the fuse.
Check for continuity across the contacts of
safety switch 1. If none, replace the switch.
With AC present, check for 24 V DC at
CN2-2 on the composite PCB and 5 V DC at
CN2-3. If none, replace the composite PCB.
Check for continuity across the connector
terminals. If none, replace them.
Run simulation 10 and check if CN15-3 on
the main PCB goes low. If not, replace the
main PCB.
Check visually and replace the drive motor if
necessary.
Check for continuity across the coil. If none,
replace the scanner motor.
Check for continuity across the connector
terminals. If none, replace them.
Run simulation 21 and check if the motor
drive coil energization pulse signals are out-
put at CN8-1, -3, -4 and -6 on the main PCB.
If not, replace the main PCB.
(1)
The machine
does not op-
erate when
the main
switch is
turned on.
(2)
The drive mo-
tor does not
operate
(C20).
(3)
The scanner
motor does
not operate
(C30).
No electricity at
the power outlet.
The power cord is
not plugged in
properly.
The front cover is
not closed com-
pletely.
Broken power
cord.
Defective main
switch.
Blown fuse in the
composite PCB.
Defective safety
switch 1.
Defective compos-
ite PCB.
Poor contact in the
drive motor con-
nector terminals.
Defective main
PCB.
Broken drive motor
gear.
Broken scanner
motor coil.
Poor contact in the
scanner motor
connector termi-
nals.
Defective main
PCB.
3-6-4 Electrical problems
Problem Causes Check procedures/corrective measures