Baby Lock BLMY Service Manual page 216

Failure Investigation for Electronic Parts Error is displayed
Is the SS-VR PCB assy. correctly
connected to the operation U22 PCB
assy. (CN1)?
Is FFC of the operation U22 PCB
assy. correctly connected to the main
NF3D PCB assy. (CN8)?
Replace the main NF3D PCB assy.
"F07" is displayed
Y
Is "F07" still displayed even when
another SS-VR F2 PCB assy. is
connected to the operation U22
PCB assy.?
Y
Y
Connect the SS-VR PCB assy.
N
to CN1 on the operation U22
PCB assy. correctly
N
Replace the SS-VR F2 PCB assy.
N
Connect it properly.
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