MA Lighting Technology GmbH . Dachdeckerstr. 16 . D-97297 Waldbüttelbrunn . Fax: + 49 9 31 4 97 94 29 . www.malighting.de
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8. Opening the Dimmer (Service)
The software of the internal computer is stored in an EPROM inside of the unit. To update the software,
the housing must be opened carefully.
Please follow this instructions carefully to avoid damaging the unit.
1.
Pull power plug before starting to open the dimmer.
!! Very dangerous !!
2. Remove only those screws, which are really necessary to open the dimmer (see drawing).
Do not remove the 4 silver coloured slot screws at the side.
3. Do not forget to remove the knob and the small screw (M3) at the front panel.
4. Turn the dimmer on its side to make work easier.
5. Pull forward cover with front panel 3 cm to the front, then tilt the cover to the top (see
drawing). This is very important, because otherwise the encoder can be damaged!
6. When the EPROM is changed, all pins must fit into the socket before the EPROM is pressed into
the socket. Do not use too much force!
7. When the cover is mounted again, please be careful not to damage the encoder. Furthermore
make sure the buttons can be moved easily.
Don´t remove these two silver
screws (2 pcs. on every side)!
pull 3 cm to the front
Tilt to the top and pull
afterwards to the front.
remove encoder knob and the small screw.
remove black Phillips screws (on
every side 7 pcs., at the bottom 2 pcs.,
at rear 8 pcs.)
1.
2.
3.