Samsung SCX-4200 manual Defective motor operation, No Power

Troubleshooting

6.4.8 Defective motor operation

• Description	Main motor is faulty and paper does not feed into the printer, resulting in Jam 0'
	Check and Cause	Solution
1. The main motor harness or Motor PCB may be faulty.		1. Check the motor harnesses and connectors, replace
		if defective.. If the problem persists replace the main
		PBA.
		Note Check motor operation using EDC Mode.

6.4.9 No Power

	• Description	When system power is turned on the LCD panel does not come on.
		Check and Cause		Solution
1.	Check if the power input and SMPS output are normal.		1.	Replace the power supply cord or SMPS. Check
				power fuse and SMPS fuses replace if necessary.
2.	LCD panel does not come on but normal start up		2.	Replace the OP panel.
	sounds are heard.
3. After replacing SMPS display does not come on and no			3.	Replace the main PBA panel.
	start up sounds are heard.

6-18Service Manual

Samsung Electronics