LAWO mc256 MKII, Technical Manual

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mc²56 MKII Technical Manual V5.10.2/1 288
Chapter 4: Service/Maintenance
Control Surface
Some D-Subs are unlocked by loosening the two connector screws. Others unlock by moving the sliding lock
mechanism (use a small flat-bladed screwdriver to slide the mechanism carefully to the left or right).
D-Sub Unlocked/Locked by Screws D-Sub Sliding Lock Mechanism
There are two versions of the I/O carrier in the field, using different directions for the sliding lock mechanism.
You can verify the direction by looking at the position of the screws; when open, the screws are not covered by
the sliding part:
Version 1: To open, slide to the right Version 2: To open, slide to the left
4. Once all the cables have been disconnected and carefully stowed, loosen the local I/O carrier from the
console frame. There are two nuts, one at the front (near the console arm rest), and one at the rear (below the
Overbridge).
The front nut should be removed completely and placed to one side. The front of the carrier unit can now be
lifted over the bolt, and if the rear nut is loose, the unit will slide forwards.
If the rear nut has been tightened, then you may need to loosen it by opening the Overbridge (see Replacing a
TFT display for how to gain access).
Front Nut Rear Nut