Brother International DCP-1400 Service Manual - Page 107

1.24 Inner Insulation Film, High-voltage Power Supply PCB, Engine PCB, and 2nd Cassette Relay PCB* (*Provided on models available with a 2nd paper cassette) (1) Remove screw "a" and take off the inner insulation film. (2) Remove three screws (two "b" and one "c") from the high-voltage power supply PCB and engine PCB. (3) Slightly lift up the high-voltage power supply PCB and disconnect it from the engine PCB. (4) Pull the spring up and out. (5) Slightly hold up the engine PCB and disconnect the following harnesses: • Toner sensor (light-receiver) harness (3-pin, P1) • Main-LV-engine harness (2-pin, P15) • 2nd cassette relay harness* (8-pin, P8) • Heater thermistor harness (2-pin, P6), if the heat-fixing unit has not been removed • Fan harness (2-pin, P7), if the fan has not been removed • Toner sensor (LED) harness (4-pin, P10) • Main motor harness (6-pin, P9) • Polygon motor harness (5-pin, P12) • Solenoid harness (2-pin, P13) Inner insulation Opening provided film in the left-hand plate of the main chassis Tab Inserting the tab of the "a" "a," "b," and "c": Taptite, bind B M4x12 inner insulation film into the opening C- 1 Engine PCB Tab Heater thermistor connector Fan connector Engine PCB • Solenoid harness Polygon motor harness Main motor harness Toner sensor (LED) harness 2nd cassette relay harness* j Main-LV-engine harness Toner sensor (light-receiver) harness Main chassis IV - 63 "b" 11. ! High-voltage power supply PCB Engine-main harness Spring C CC $` 2nd cassette relay PCB* (Rear)