Brother International HL 1850 Service Manual - Page 151
voltage, Power, Supply
UPC - 012502603900
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CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (16) Remove the gear 60 P/R and gear 72 MP from the conductor bearing 5, and remove the middle roller gear from the conductor bearing H. (17) Remove the two conductor bearing 5. (18) Turn the knob of the conductor bearing H as the figure shown below, and remove the conductor bearing H from the main frame L. Gear 72 MP Gear 60 P/R Conductor bearing 5 Conductor bearing H Middle roller gear Conductor bearing 5 I r (knob) Fig. 4-81 ttt li Conductor bearing H 3.16 Low-voltage Power Supply PCB ASSY (1) Remove the eight cup S tite 3x6 screws and the pan M3.5x6 screw with washer and the lead wire FG, and then disconnect the engine PCB connector. (2) Remove the PS PCB ASSY from the main frame. 2 UJ IVJJ PS PCB PS PCB ASSY -0. N 'I - Main frame Screw, cup S tite 3x6 Screw, cup S tite 3x6 Screw, pan M3.5x6 with washer k4-- Lead wire FG Screw, cup S tite 3x6 Screw, cup S tite 3x6 4-52