Brother HL-3040CN Service Manual page 310

(9) Remove the Taptite pan (washer) B M4x12DA screw, and then remove the Low-voltage
power supply PCB ASSY from the LVPS cover.
Taptite pan (washer)
B M4x12DA
LVPS cover
(10) Disconnect the three Connectors (CN101, CN102, CN103) from the Low-voltage power
supply PCB ASSY.
CN102
CN101
Harness routing: Refer to
Low-voltage power supply PCB ASSY
Fig. 5-178
CN103
Fig. 5-179
" Low-voltage Power Supply PCB ASSY."
5-136
Low-voltagpower supply PCB ASSY
Confidential