Dialing Function Does Not Switch Between "Tone" And "Pulse - Brother DCP-9010CN Service Manual

9.6 Dialing Function does not Switch between "Tone" and
"Pulse."
Step
1 Connection
between main
PCB and NCU PCB
2 NCU PCB
3 Main PCB
Cause
Are the main PCB and
NCU PCB connected
properly?
Is the problem solved
after replacing the NCU
PCB ASSY?
Is the problem solved
after replacing the main
PCB ASSY?
Check
Result
No
Yes
Yes
3-99
Remedy
Reconnect the
connector properly.
Replace the NCU PCB
ASSY.
Replace the main PCB
ASSY.
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