Mitsubishi Electric NP180 Series Setup Manual page 40

 The blue marks move up and down along with
the magnetic plates. The marks get visible as
the plates move away from the surface.
 Take a measure not to drop the tool when
working in high places.
4. Gently put the detachment tool on the LED
module to be removed, considering the
location of the 2 screws behind the module.
Detachment tool
5. Rotate the inner nuts anti-clockwise till they
stop. The tool will attach to the LED module by
magnetic attraction.
Inner nuts
 The magnetic plates don't touch the LED
module directly and they don't scratch the
surface of it.
6. Rotate the outer knobs anti-clockwise, which
loosen the screws behind the module.
Outer knobs
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NP180/160 Series Setup Manual
7. Detach the module.
8. Disconnect 2 connectors on the back of the
module.
9. Leave the spacers as they will be used to attach
the new LED module as well.
4x spacers
10. Prior to attaching a new module on the LED
unit, put the detachment tool on the module in
the same manner as the step 3 to 5.