Baby Lock BLMY Service Manual page 215

Failure Investigation for Electronic Parts Error is displayed
Is the NP F2 PCB assembly correctly
connected to the main NF3D PCB
assy. (CN2)?
When the NP F2 PCB assembly is
replaced with a new one, does it work
correctly?
5 - 24
The error message "F05" or "F06"
is displayed on the screen.
Y
Y
Replace the NP F2 PCB assy.
Correctly connect the NP F2
N
PCB assy. to the main NF3D
PCB assy. (CN2).
N
Replace main NF3D PCB assy.