Bose LT 9702, LT 4402, LT MB24 III, LT 9402TM manual Service Information

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Service Information

To Replace the t1.4hp High-frequency Compression Driver in the Panaray® LT 3202®-III, LT 4402®-III, LT 9402TM-III or LT 9702®-III Loudspeakers

CAUTION: The rear of the Panaray LT loudspeakers can become extremely HOT during normal use. Do not attempt to service the loudspeakers until they have cooled to room temperature.

1.Turn off the ampliﬁer power.

2.Disconnect the loudspeaker input connection.

3.Remove the 12 screws from the rear cover of the loudspeaker and slide the rear cover up and remove it from the cab- inet.

4.Disconnect the blue wire from the positive (+) terminal and the black wire from the negative (-)terminal of the t1.4hp driver.

Note: On some models, the connectors may be lightly soldered to the terminals on the compression driver so removing the connectors may require a soldering iron.

5.Remove the four screws holding the compression driver assembly to the cabinet.

6.Remove the four countersunk screws that connect the mounting plate to the compression driver.

7.Connect the new compression driver to the mounting plate using the four countersunk screws.

8.Insert the compression driver assembly into the rear of the loudspeaker cabinet and secure with four screws.

9.Reconnect the blue wire to the positive (+) terminal and the black wire to the negative (-) terminal.

10.Replace the rear cover and secure it with the 12 screws.

11.Reconnect the loudspeaker input signal to the Speakon™ connectors.

12.Turn on the ampliﬁer.

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Contents Bose Panaray LT Series III Loudspeakers Declaration of Conformity Declaration of ConformityContents Read the instructions Safety InformationMounting Guidelines How to Use This Reference Guide LT 3202-III Loudspeaker Mechanical SpecificationsLT 4402 -III Loudspeaker LT 9402-III Loudspeaker LT 9702-III Loudspeaker LT MB24-III Modular Bass Loudspeaker Internal Conﬁgurations Acoustical Specifications and WiringRecommended Wire Gauges Acoustical Speciﬁcations and Wiring To reconﬁgure your LT 3202-III loudspeaker only To reconﬁgure your LT MB24-III modular bass loudspeaker LT 3202-III Acoustical Speciﬁcations LT 3202-III Loudspeaker Product DescriptionLT 3202-III Loudspeaker Active Equalization Curves LT 3202-III Loudspeaker ConﬁgurationsLT 4402-III Acoustical Speciﬁcations LT 4402-III Loudspeaker Product DescriptionLT 4402-III Loudspeaker Active Equalization Curves LT 4402-III Loudspeaker ConﬁgurationsLT 9402-III Acoustical Speciﬁcations LT 9402-III Loudspeaker Product DescriptionLT 9402-III Loudspeaker Active Equalization Curves LT 9402-III Loudspeaker ConﬁgurationsLT 9702-III Acoustical Speciﬁcations LT 9702-III Loudspeaker Product DescriptionLT 9702-III Loudspeaker Active Equalization Curves LT 9702-III Loudspeaker ConﬁgurationsLT MB24-III Acoustical Speciﬁcations LT MB24 Loudspeaker Product DescriptionLT MB24-III Loudspeaker Active Equalization Curve LT MB24-III Loudspeaker Conﬁgurations Other methods of providing active equalization Active Equalization LT Series III Mid/High Loudspeakers LT MB24 Modular Bass LoudspeakerPanaray LT Replacement Parts Service InformationPainting Information Service Information Remove the replacement diaphragm from its carton Service Information To Replace the V-2 Mid-frequency Driver in the Panaray LT Service Information Service Information LT 3202-III Loudspeaker Driver and Electronics AssemblyLT 4402-III Loudspeaker 10 11 12 13 14 15 24 23 22 LT 9402TM-III LoudspeakerLT 9702-III Loudspeaker LT MB24-III Loudspeaker