Minolta Di 620 Manual page 252

C0000
Step
1 Check M3 for operation.
Does the voltage across PJ7A-1A on PWB-
A and GND change from DC5V to DC0V
when the Start key is pressed?
2 Does the voltage across PJ7A-8A on PWB-
A and GND change from DC5V to DC0V
when the Start key is pressed?
3 Is the voltage across PJ7C-6B on PWB-C
and GND DC24V?
C0010
Step
1 Check M2 for operation.
Does the voltage across PJ7A-2A on PWB-
A and GND change from DC5V to DC0V
when the Start key is pressed?
2 Does the voltage across PJ7A-9A on PWB-
A and GND change from DC5V to DC0V
when the Start key is pressed?
3 Is the voltage across PJ4C-5A on PWB-C
and GND DC5V? Is the voltage across
PJ7C-5B on PWB-C and GND DC24V?
Check Item
Check Item
Result
NO Change PWB-A.
NO Check gears for overload and, if they are
okay, change M3.
YES Change PWB-A or M3.
NO Change PWB-C.
Result
NO Change PWB-A.
NO Check gears for overload and, if they are
okay, change M2.
YES Change PWB-A or M2.
NO Change PWB-C.
T-37
Action
Action