Kyocera Copystar CS 3011i Service Manual page 370

1-4-4 Electric problems
If the part causing the problem was not supplied, use the unit including the part for replacement.
Troubleshooting to each failure must be in the order of the numbered symptoms.
Problem
(1)
The machine does
not operate when
the main power
switch is turned on.
(2)
Eject motor does
not operate.
(3)
Power source fan
motor does not
operate.
(4)
Eject fan motor
does not operate.
Causes
1. No electricity at the
power outlet.
2. The power cord is
not plugged in prop-
erly.
3. Broken power cord.
4. Defective main
power switch.
5. Defective power
source PWB.
6. Defective main PWB. Replace the main PWB and check for correct operation
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective drive trans-
mission system.
3. Defective motor.
4. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective motor.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective motor.
3. Defective PWB.
Check procedures/corrective measures
Measure the input voltage.
Check the contact between the power plug and the outlet.
Check for continuity. If none, replace the cord.
Check for continuity across the contacts. If none, replace
the power switch.
Replace the power source PWB (see page 1-5-64).
(see page 1-5-54).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Eject motor and engine PWB (YC8)
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
Replace the eject motor.
Replace the engine PWB and check for correct operation
(see page 1-5-59).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Power source fan motor and main PWB (YC10)
Replace the power source fan motor.
Replace the engine PWB and check for correct operation
(see page 1-5-59).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Eject fan motor and engine PWB (YC8)
Replace the eject fan motor.
Replace the engine PWB and check for correct operation
(see page 1-5-59).
1-4-77
2RG/2RH