Brother International HL-1070 Service Manual - Page 57

Fig. 3.28, Low-voltage Power Supply PCB ASSY, Note 1: When reassembling

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(2) Disconnect the eleven connectors from the PCB. (Three connectors have already been disconnected when removing the scanner unit.) 5 1 Driver PCB ASSY 2 7 4 3 8 9 10 11 12 13 Main frame Fig. 3.28 (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 Note 1: When reassembling, the cable connectors must be inserted securely into the PCB connectors and the PCB must not be stressed by the harnesses. Note 2: The connectors should be inserted by matching the housing color and the number of pins. 3.13 Low-voltage Power Supply PCB ASSY (1) Remove the screw securing the low-voltage power supply PCB ASSY. (2) Disconnect the two connectors for the heater harness and the LV harness from the PCB. Screw LV harness Low-voltage power supply ASSY H r h rn Fig. 3.29 Main cover III-17

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III-17
(2)
Disconnect the eleven connectors from the PCB. (Three connectors have already
been disconnected when removing the scanner unit.)
(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
Fig. 3.28
Note 1: When reassembling, the cable connectors must be inserted securely into the
PCB connectors and the PCB must not be stressed by the harnesses.
Note 2: The connectors should be inserted by matching the housing color and the
number of pins.
3.13
Low-voltage Power Supply PCB ASSY
(1)
Remove the screw securing the low-voltage power supply PCB ASSY.
(2)
Disconnect the two connectors for the heater harness and the LV harness from the
PCB.
Fig. 3.29
1
5
4
3
8
9
10
11
12
13
Driver PCB
ASSY
2
7
Main frame
LV harness
Screw
Low-voltage power supply ASSY
H
r h
rn
Main cover
<200V only>