Magazine Unlock/Open Switch, Magazine Security Lock - Overland Data DLT LibraryXpress Series Service Manual

Replacement
Refer to Figure 6-16.
1. Position the sensor over its mounting holes at the rear of the magazine track.
2. Install two M3 x 8 mm screws and sems washers that hold the opto sensor. Do not
over tighten the screws.
3. Guide the Magazine Opto Sensor cable connector through the opening in the
bulkhead. Referring to Figure 6-7 and 6-8, connect it to J19, 'Magazine Sensor' on
the Controller PWB.
4. Position the magazine track over the mounting studs. Route the cable at the sensor
end between the caddy bulkhead and the mounting stud.
5. Install six M3 x 12 mm flat head Phillips screws that hold the magazine track in
place. Note: Apply Loctite 222 to the threads of each screw before inserting.
6. Replace the Power Supply Assembly as described in this chapter.
7. Replace the cover plate as described in this chapter.

Magazine Unlock/Open Switch, Magazine Security Lock

Removal
Refer to Figure 6-17.
1. Remove the cover plate as described in this chapter.
2. Remove the door opener mechanism as described under the heading 'Door
Opener/Magazine Lock Assembly' in this chapter. It is not necessary to remove the
motor bracket.
3. Disconnect the cable from the 4-pin connector marked 'lock switch assy' near the
front of the top edge of the Controller PWB. Refer to Figure 6-7 and 6-8 to locate
the connector.
4. Locate the 2-pin connector set fastened behind the front panel between the Magazine
Security Lock and the Unlock/Open Switch. It is attached to the front panel with
double-sided foam adhesive tape. Lift the connectors clear of the foam.
5. Disconnect the two-pin connector set.
6. If you are replacing the Magazine Security Lock, unscrew the nut on the back of the
lock using an 11 mm open-end wrench, and pull the lock and its cable out the front
of the Front Panel.
7. If you are replacing the Unlock/Open Switch, push forward on the back of the
switch. until it pops out of its mounting hole. Note that the wiring on the LED on
the switch prevents completely removing the switch.
8. Pull the LED out of its mount from the back of the switch.
9. Pull the LED, the 2-pin connector, and the 4-pin connector through the switch
mounting hole.
Chapter 6 - Parts Removal and Replacement 111