2 ] The Tape Is Not Detected Correctly - Brother P-touch QL-1050 Service Manual

[ 2 ] The tape is not detected correctly.

Do not recognize a tape type correctly.
Is a tape loaded correctly?
The main PCB ASSY is defective.
Replace the main PCB ASSY.
N
Y
N
Is the main PCB ASSY
installed correctly?
Y
Y
Is input signal normal?
N
IV- 4
Load a tape correctly.
Install the main
PCB ASSY correctly.
The sensor is defective.
Replace the main PCB
ASSY.