Minolta Di620 Troubleshooting Manual page 70

<Metric Areas>
C0920, C0924
Step Check Item
1 Does M24 start turning when the 1st
Drawer is slid out and back in?
2 Does the voltage across PJ4F-1 on PWB-F
and GND change from DC0V to DC24V
when step 1 is performed again?
3 Check PC25 for operation.
Does the voltage across PJ4A-12 on PWB-
A and GND alternate between DC0V and
DC5V when step 1 is performed again?
4 Is PC40 fully operational?
Make the input port check using "I/O
Check."
<Inch Areas>
C0920, C0921, C0924
Step Check Item
1 Does M24 start turning when the 1st
Drawer is slid into the copier and UN7
turned ON?
2 Does the voltage across PJ6F-1 on PWB-F
and GND change from DC0V to DC24V
when step 1 is performed again?
3 Is PC40 fully operational?
Make the input port check using "I/O
Check."
4 Check PC25 for operation.
Does the voltage across PJ4A-12 on PWB-
A and GND alternate between DC0V and
DC5V when step 1 is performed again?
5 Is PC18 fully operational?
Make the input port check using "I/O
Check."
Result
NO Check for overloads and then check step
3 and onward.
YES Check gears for overload and, if they are
okay, change M24.
NO Change PWB-A or PWB-F.
NO Check the PC25 pulse disk and, if it is
okay, change PC25.
YES Change PWB-A or PWB-F.
NO Check the PC40 actuator and, if it is okay,
change PC40.
Result
NO Check for overloads and then check step
3 and onward.
YES Check gears for overload and, if they are
okay, change PWB-M1 or M24.
NO Change PWB-A or PWB-F.
NO Check the PC40 actuator and, if it is okay,
change PC40.
NO Check the PC25 pulse disk and, if it is
okay, change PC25.
YES Change PWB-A, PWB-F, or PWB-M1.
NO Check the PC18 actuator and, if it is okay,
change PC18.
T-65
Action
Action