Altec Lansing CD912 CEILING SPEAKER VOICE COIL - REPAIR Instructions Manual page 10

25. Replace the Tweeter
correctly with the High Frequency Voice Coil Assembly's keys. Note Figure
15 shows a White mark on the Tweeter Frame aligning with the White mark
on the edge of the Tweeter Magnet.
26. Using a Philips Screw Diver tighten the three (3) Philips Screws to securely
fasten the Tweeter
Figure 15
Face Plate taking care to insure its key recesses align
Figure 16
Face Plate to the Tweeter Magnet.
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