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Brother HL-4140CN Service Manual page 271

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(3) Disconnect the two Connectors (CN1, CN2) from the High-voltage power supply PCB
ASSY.
High-voltage power supply
PCB ASSY
(4) Remove the two Taptite cup S M3x6 SR screws.
CN7
CN6
Fig. 3-168
High-voltage power supply PCB ASSY
Fig. 3-169
3-123
CN1
CN2
CN4
CN5
CN8
Taptite cup S
M3x6 SR
Confidential
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