The Tape Is Not Detected Correctly - Brother P-touch QL-700 Service Manual

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The tape is not detected correctly.

Do not recognize a tape type correctly.
Is a tape loaded correctly?
Is the output signal of the
media PCB correct?
Replace the main PCB ASSY.
Y
Is the media type
detect sensor installed
correctly?
Y
Is the sensor harness
damaged?
N
Y
N
Load a tape correctly.
N
Install the sensor correctly.
Y
Replace the media PCB ASSY.
N The sensor is defective.
Replace the media PCB ASSY.
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