Communication Error Occurs - Brother DCP-7080 Service Manual

4.13.4 Communication error occurs

<User Check>
- Check whether there is any noise source near the machine.
Step
Connection failure of modem flat
1
cable
Connection failure of modem FG
2
harness
Line cord breakage
3
Modem PCB failure
4
Main PCB failure
5
Cause
Check the connection of the modem flat
cable, and reconnect it if necessary.
Screw tighten the screws of the modem FG
harness.
Replace the line cord.
Replace the modem PCB ASSY.
Replace the main PCB ASSY.
2-96
Remedy
Confidential