8 ] Wireless Lan (Wlan); 9 ] Others - Brother MFC640CW Service Manual

[ 8 ] Wireless LAN (WLAN)

Trouble
(1) PC-driven printing via the
wireless LAN is
impossible.

[ 9 ] Others

Trouble
(1) When the power is turned
on (when the power cord is
plugged into an outlet), the
scanner makes a grating
noise.
Check the following:
- The address has not been changed at both the FAX
machine and PC.
- Connection between the WLAN PCB and the main PCB
- WLAN PCB
Check the following components:
- CIS flat cable
- Scanner cover (Scanner unit)
- Main PCB
9 - 3 6
Action to be taken
Action to be taken
Confidential