Samsung ML-6050 Service Manual

Also see for ML-6050: Product guide User guide Service manual User manual

Contents

5-32 Samsung ElectronicsTroubleshootingError code 3-010FaultDescriptionAll the lamps on the operator panel blink and the system stops.Fuser Error Model ML-xxxxCheck1. Fuser2. Engine boardCause1-1. Thermostat, AC wire, or heat lamp may be open.1-2. Thermistor may be open. (DCU error code 60, 62, 68.)2-1. Abnormal heat lamp on/off2-2. Malfunction of the overheat circuitSolution1-1. Check thermostat, AC wire, and heat lamp. If the thermostat is open, check also R37, R47, or Q8.1-2. If thermistor is open, check the wire. If the wire is good, check Q8. Q8 collector should be 0.2V,base 0.7V.2-1. Check Q3 and its related parts in the order shown below.1) Check Q3 C-E, B-E, B-C, and replace if shorted. If the voltage between B and E is below 0.7V,replace the transistor.2) When lamp is on, if the base is 0V, check CPU pin 38.3) When lamp is on, if the collector is 0V with lamp off, check PC151, Q101, and its related parts.2-2. Check the overheat circuit. When U5 pin 7 is below 0.5V, the overheat circuit should activate andthe lamp turns off. In normal mode, pin 6 is approximately 2.6V, pin 5 is over 2.6V, and pin 7 isover 4V. If not, check all related parts.RemarkOthers