Troubleshooting For Fax/Phone Problems; Fax Cannot Be Sent; Fax Cannot Be Received - Brother DCP-1510 Service Manual

4.12 Troubleshooting for FAX/Phone Problems

4.12.1 Fax cannot be sent

<User Check>
- Check that the line cord is inserted into the socket correctly.
- Check that the dial function setting (tone/pulse) is correct.
- Check that the telephone line is connected correctly.
- Check that the document is set in the document scanner unit or ADF unit correctly.
- Check that the handset cord is connected correctly.
- Check that the dial numbers are saved in the phone book correctly.
- Check that the remote terminal's equipment is working normally or equipped with
required function.
- Check if there is any irregular background noise around the machine by moving it to
another place.
- Check that the handset is placed in the handset holder correctly.
Step
Connection failure of the modem
1
PCB flat cable
Connection failure of the CIS flat
2
cable
3 Rubber key failure
4 Hook PCB failure
5 Panel PCB failure
6 Modem PCB failure
7 CIS unit failure
8 Main PCB failure

4.12.2 Fax cannot be received

<User Check>
- Check that the line cord is inserted into the socket correctly.
- Check that the receiving mode setting is correct.
- Check that the handset is placed in the handset holder correctly.
- Check if there is any irregular background noise around the machine by moving it to
another place.
Step
Connection failure of the modem
1
PCB flat cable
2 Modem PCB failure
3 Main PCB failure
Cause
Reconnect the modem PCB flat cable.
Reconnect the CIS flat cable.
Replace the rubber key.
Replace the hook PCB ASSY.
Replace the panel PCB ASSY.
Replace the modem PCB ASSY.
Replace the CIS unit.
Replace the main PCB ASSY.
Cause
Reconnect the modem PCB flat cable.
Replace the modem PCB ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
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