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Appendix A:
Installing The
OC-1 Option Card
NOTE: The OC-1 option card can be purchased
and installed ONLY through an authorized Bose
®
Service Center or dealer. It is not user-installable.
A.1 Installing The Internal
Protection Circuit Harness
1. Unplug the systems controller. Disconnect all
audio connections. Turn it so the rear panel
faces you (Figure 23).
2. Remove the four Phillips head screws from the
cover (Figure 23). Set them safely aside.
3. Slide the cover toward you. Then lift it off.
4. Find the plastic plug in the controller rear panel
(Figure 24). Pinch the top lock tab and push the
plug partially out (Figure 24b). Release the tab
and pull the plug the rest of the way out.
Figure 24
Remove the plastic plug covering the internal protection circuit harness opening.
24b
Figure 23
Remove the four Phillips head screws.