Low-Voltage Power Supply Pcb Assy - Brother HL-1070 Service Manual

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1
Driver PCB
ASSY
2
7
Main frame
Note 1: When reassembling, the cable connectors must be inserted securely into the
Note 2: The connectors should be inserted by matching the housing color and the
3.13

Low-voltage Power Supply PCB ASSY

(1)
(2)
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Disconnect the eleven connectors from the PCB. (Three connectors have already
been disconnected when removing the scanner unit.)
4
3
5
9
8
PCB connectors and the PCB must not be stressed by the harnesses.
number of pins.
Remove the screw securing the low-voltage power supply PCB ASSY.
Disconnect the two connectors for the heater harness and the LV harness from the
PCB.
Screw
11 12
10
13
Fig. 3.28
Fig. 3.29
III-17
(Name of the harnesses)
1. SW panel harness
2. Scan motor harness
3. Toner harness
4. Laser harness
5. Fan motor harness
7. Main connector
8. High-voltage flat cable
9. Erase lamp harness
10. SR harness
11. Solenoid harness
12. Main motor harness
13. Low-voltage harness
LV harness
Low-voltage power supply ASSY
H r h rn
<200V only>
Main cover