7 ] The Tape Is Not Cut - Brother TD-4000 Service Manual

[ 7 ] The tape is not cut.

N
Replace the gears.
The tape is not cut.
Is the cutter
unit assembled correctly?
Is the harness assembled
correctly?
Y
Are there any
jammed tape or the like
between the blades?
(Red LED blinking)
N
Does the cutter unit
work normally?
N
Does the DC motor rotate?
Y
Do the gears rotate?
Y
Replace the cutter unit.
N
Assemble the cutter unit
or harness correctly.
Press the POWER, CUT
or FEED button to
Y
reverse the cutter.
Then, remove the
jammed tape.
Y
Replace the cutter unit.
N
Is the DC motor connected?
Y
Is the cable damaged?
N
Are the output
waveforms of pin 1 and
pin 2 of CN7 normal?
Y
Replace the cutter unit.
IV - 9
N
Correct the
connection.
Y
Replace the
cutter unit.
N Replace the
main PCB ASSY.