Samsung ProXpress M453x series Service Manual page 169

7) If the connection is OK, enter SVC mode. Execute the motor test.
a) If the motor is not operational,
i) Check the motor signal(3.3V). If the signal is abnormal, replace the main
/ JC92–02801A(M4530NX)).
ii) Check the power(24V). If the power is abnormal, check the SMPS board. If the SMPS
(220V) / JC44-00091C
iii) If the motor signal and power is normal, replace the main(feed/fuser) motor(JC31–00144B).
b) If the motor is operational, replace the main board.
8) Check the pick up clutch connection. If the pick up clutch(JC47-00033E) is defective, replace it.
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(110V)) is defective, replace it.
4. Troubleshooting
board(JC92–02802A(M4530ND)
board(JC44-00092C
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