Brother DCP7010 Service Manual page 246

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F-3
FAX can't be received.
User Check
(1) Verify that the telephone cord is securely inserted.
Possible cause
Receive mode
setting
NCU PCB
Main PCB
F-4
No bell ring.
Possible cause
Ring delay
Ring volume
Harness between
main PCB and
scanner unit
Connection
between main
PCB and NCU
PCB
Harness between
main PCB and
NCU PCB
Speaker
NCU PCB
Main PCB
Check
Step
1
Receive mode is set to
automatic receive mode.
2
Replacement of NCU
PCB solves the problem.
3
Replacement of main
PCB solves the problem.
Check
Step
1
Ring delay is set to "0".
2
Ring volume is set to
"OFF".
3
Harness is damaged.
4
Main PCB and NCU
PCB are properly
connected.
5
Harness is damaged.
6
Replacement of speaker
solves the problem.
7
Replacement of NCU
PCB solves the problem.
8
Replacement of main
PCB solves the problem.
Result
No
Set the receive mode to
automatic receive mode.
Yes
Replace the NCU PCB with a
normal part.
Yes
Replace the main PCB with a
normal part.
Result
Yes
Set the ring delay to other than
"0".
Yes
Set the ring volume to other
than "OFF".
Yes
Replace the harness with a
normal part.
No
Fix the connection properly.
Yes
Replace the harness with a
normal part.
Yes
Replace the speaker with a
normal part.
Yes
Replace the NCU PCB with a
normal part.
Yes
Replace the main PCB with a
normal part.
9 -5 8
Remedy
Remedy
Confidential

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