Aros Syncro 800 Manuel De L'utilisateur page 34

1) Remove the screw fixing the little panel at
the bottom of unit
2) Pull down to the limits, then pull forward
5) First rotate to small angle,then pull down.
You can disassemble the panel
6) Remove screw and remove the battery
cover
Model: Syncro 2000
3)
4)
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Disassemble the little panel
Remove the screw
7) Remove the wire, then you can replace
the batteries