(d) Inferior head:
Replace the head carriage Ass'y according to item 3-5-1.
( e ) Inferior PCBA
MFD
control:
Replace the PCBA
MFD
control according to item 3-5-7.
( 1 3 ) Eject the level disk and release the Invert and A d d modes of the
oscilloscope.
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