Mctl Pwb - Brother HL-3450CN Service Manual

CHAPTER 7 DISASSEMBLY & RE-ASSEMBLY
4.3.2

MCTL PWB

Remove the Main (Video Controller) PWB before starting this disassembly.
(1) Remove the set screw ST3x6 (1 pc.) from shield cover 'B'. Slide the cover upwards and
remove it.
(2) Disconnect all the harness connectors (7 pcs.) connected to the MCTL PWB.
(3) Remove the set screws ST3x6 (4 pcs.) from the MCTL PWB.
(4) Remove the MCTL PWB.
N
Read the internal RAM counter information from the MCTL PWB prior to replacing the
MCTL PWB.
N
When handling the MCTL PWB, ensure that no damage is caused due to electrostatic
charges.
Shield cover 'B'
CAUTION
PRECAUTION
MCTL PWB
Fig. 7-48
7-34