JVC KD-AV7005 Service Manual page 58

5.9 The initialization method of a top drive unit
(1) When top drive unit is exchanged.
(2) When exchange or gear is shifted for gear by repair of top drive unit.
(3) When Monitor Does Not Open and Close (when it Moves Manually Forcibly)
Please initialize at the above time.
Initialization procedure
TI button is detached after detaching reset button which pushes reset button, pushing TI button.
* Even if it initializes by 3., when not being repaired, repair of a top drive unit and exchange are required.
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