Brother MFC-9560CDW - FAX Cannot be Received; No Bell Ring; Speaker Is Silent During On-Hook Dialing

2-137
Confidential
3.12.3 FAX cannot be received.
<User Check>
- Verify that the telephone cord is securely inserted into the right socket.
3.12.4 No bell ring
<User Check>
- Set a value other than "0" to the number of bell rings.
- Set a value other than "OFF" to the bell volume.
3.12.5 Speaker is silent during On-hook dialing
Step Cause Remedy
1 Connection between main
PCB and NCU PCB
Connect the connector between the main
PCB ASSY and NCU PCB ASSY correctly.
2 NCU PCB failure Replace the NCU PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1 Harness connection failure of
speaker
Check the harness connection of the speaker
and reconnect it.
2 Connection between main
PCB and NCU PCB
Connect the connector between the main
PCB ASSY and NCU PCB ASSY correctly.
3 Speaker failure Replace the speaker unit.
4 NCU PCB failure Replace the NCU PCB ASSY.
5 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1 Harness connection failure of
speaker
Check the harness connection of the speaker
and reconnect it.
2 Speaker failure Replace the speaker unit.
3 Connection between main
PCB and NCU PCB
Connect the connector between the main
PCB ASSY and NCU PCB ASSY correctly.
4 Connection between main
PCB and panel PCB
Connect the connector between the main
PCB ASSY and panel PCB ASSY correctly.
5 NCU PCB failure Replace the NCU PCB ASSY.
6 Main PCB failure Replace the main PCB ASSY.