Electric Failure - Kyocera ECOSYS P2235dn Service Manual

7-4 Electric failure

Failure status
(1)The machine 1. Power is not sup-
does not operate at
all when turning
2. Power plug connec-
the power on.
3. Top cover isn't
4. Broken power cord.
5. Connected to the
6. Fuse melt-down on
7. The interlock switch
8. Low voltage power
9. Main/Engine PWB is
(2)The right cooling 1. Right cooling motor
fan motor does not
rotate.
2. Wire or connector
3. Main/Engine PWB is
(3)The left cooling 1. Left cooling motor
fan motor does not
rotate.
2. Wire or connector
3. Main/Engine PWB is
Cause of failure
Check input voltage.
plied to the outlet.
Check the contact between the power plug and outlet is
tion is defective. secure.
Close the top cover firmly.
securely closed.
Check the continuity and replace if there is no continuity.
Check the continuity between the low voltage power supply
power switch. PWB and replace it if there is no continuity. (see page 4-76)
Replace the low voltage PWB after investigating the cause
the low voltage of melt-down. (see page 4-76)
power PWB.
Check the continuity between the interlock switch contacts.
is defective. Replace the low voltage power supply PWB if there is no
continuity. (see page 4-76)
Replace the low voltage power supply PWB. (see page 4-
supply PWB is 76)
defective.
Replace the main/engine PWB. (see page 4-63)
defective.
Check the continuity of the right cooling fan and replace if
coil is broken. there is no continuity.
If the connector is not inserted enough, reinsert it. Or check
failure between the the wire's continuity, and repair or replace the wire if there
right cooling fan and is no continuity. (see page 4-63)
main/engine PWB
(YC7).
Replace the main/engine PWB. (see page 4-63)
defective.
Check the continuity of the left cooling fan and replace if
coil is broken. there is no continuity.
If the connector is not inserted enough, reinsert it. Or check
failure between the the wire's continuity, and repair or replace the wire if there
left cooling fan and is no continuity. (see page 4-76)
main/engine PWB
(YC1).
Replace the main/engine PWB. (see page 4-63)
defective.
Check procedures/corrective measures
7-48
2RV/2RW/2RX/2RY/3RA-1