Brother FAX-270MC, Service Manual

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Reassembling Notes
• Make sure that the power supply PCB is completely fitted in the resin PCB supports of the
main frame. If it is loosely mounted so that it comes into contact with the bottom plate, a
short circuit may occur.
• For the FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC: After putting the
scanner frame ASSY back onto the main frame, route the harnesses and arrange the
cores as follows, referring to the illustration given on the previous page.
- Hook the power supply harness core on boss “C.”
- Check that the cutter HP sensor harness runs through a core, and then hook the core
on boss “D.”
- Push the CIS harness core and the recording head harness core to the left of rib “E”
and behind relay “F.”
- Route all these harnesses under boss “D.”
If any of these harnesses and cores are out of the specified position, the scanner frame
ASSY or ROM cover may not be put back into place.
• For the FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC: After connecting these
harnesses, check that neither the electrolytic capacitor nor resistors are tilted towards the
PE sensor actuator. If tilted, they may interfere with normal operation of the sensor
actuator.