Lexicon MPX 500 V2 - UPGRADE Installation Instructions Manual page 7

Bottom View of Unit
Front
Back
2. Carefully remove the side panels by pulling them
out. Begin pulling at the end closest to the front
panel.
MPX 500 Version 2 Software Installation Intructions
3. Remove the screw (Lexicon Part No. 640-02812)
and nut (Lexicon Part No. 643-01732) closest to
the AC receptacle. This is the only screw with a
nut attached.
Screw & Nut
inside unit
4. Remove the nine larger screws (Lexicon Part No.
641-11466) on the back panel.
5. Using a size 0 Phillips head screwdriver, remove
the four smaller screws (Lexicon Part No. 641-
12759) near the MIDI IN & OUT/THRU ports.
4 Smaller Screws
9 Larger Screws
7