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C656M-E (4/07) 13
b. For Spectra III systems, set all SW3 switches on the dome to the OFF position.
For Spectra IV systems, set SW2-1 through SW2-8 to the OFF position.
8. Install the dome drive (refer to Figure 11). Line up the blue (A) and red (B) tabs with the blue (A) and
red (B) labels. When pushing the tabs in, insert one side, then the other. Continue pushing on the
ends of the tabs until both tabs click into place.
NOTE: Refer to the installation manual supplied with the Spectra III/Spectra IV dome for instructions
on installing the back box, dome drive, and lower dome.
Figure 11. Spectra III/Spectra IV Dome Drive Installation
9. Install the lower dome.
10. Apply power to the system. The following message appears on the monitor as soon as the
Spectra III/Spectra IV configuration cycle is completed:
TXB-V REV x.xx
NOTE: x.xx represents the current firmware revision.
Figure 9. Spectra III Dome Drive DIP Switches
Figure 10. Spectra IV Dome Drive DIP Switches
SW1
SW3
SW2
1
2
3
4
567
8
1
2
3
4
567
8
1
on
on
SW1
SW2
SW3
SW1 AND SW2