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Contents
CAUTION: The Bose ® Panaray LT 6403 and LT 9403 Full Range loudspeakers
and LT 6400 and LT 9400 Mid/High Frequency Loudspeakers
contain no user-serviceable parts. To prevent warranty infractions,
refer servicing to warranty service stations or factory service.
Warranty Information
The Bose Panaray LT 6403, LT 9403, LT 6400 and LT 9400
Loudspeakers are covered by a 5-year transferable limited warranty.
PROPRIETARY INFORMATION
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF
BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR
THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT
BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF
THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR
USED FOR ANY OTHER PURPOSE.
Warranty Information............................................................................................................................... 1
Specifications....................................................................................................................................... 2-5
Product Descriptions.............................................................................................................................. 6
Part List Notes .......................................................................................................................................... 6
Packing List, Panaray
® LT 6403 Full-Range Loudspeaker................................................................. 7
Figure 1. Panaray LT 6403 Packaging View .......................................................................................... 7
Packing List, Panaray LT 6400 Mid/High Frequency Loudspeaker.................................................. 8
Figure 2. Panaray LT 6400 Packaging View .......................................................................................... 8
Packing List, Panaray LT 9403 Full-Range Loudspeaker.................................................................. 9
Figure 3. Panaray LT 9403 Packaging View .......................................................................................... 9
Packing List, Panaray LT 9400 Mid/High Frequency Loudspeaker................................................ 10
Figure 4. Panaray LT 9400 Packaging View ........................................................................................10
Main Part List, Panaray LT 6403 Full-Range Loudspeaker (see Figure 5) ................................... 11
Figure 5. Panaray LT 6403 Loudspeaker Exploded View .................................................................... 12
Main Part List, Panaray LT 6400 Mid/High Frequency Loudspeaker (see Figure 6) .................. 13
Figure 6. Panaray LT 6400 Loudspeaker Exploded View .................................................................... 14
Main Part List, Panaray LT 9403 Full-Range Loudspeaker (see Figure 7) ................................... 15
Figure 7. Panaray LT 9403 Loudspeaker Exploded View .................................................................... 16
Main Part List, Panaray LT 9400 Mid/High Frequency Loudspeaker (see Figure 8) .................. 17
Figure 8. Panaray LT 9400 Loudspeaker Exploded View .................................................................... 18
Disassembly Procedures...............................................................................................................19-21
Test Procedures.............................................................................................................................. 21-22
Figure 9. Input Board Layout Diagram................................................................................................. 23
LT 6403 and LT 9403 Crossover Board Layout Diagram .................................................................. 24
LT 6400 and LT 9400 Crossover Board Layout Diagram .................................................................. 25
LT 6403 and LT 9403 Crossover Wiring Diagrams ............................................................................ 26
LT 6400 Mid/High Loudspeaker Crossover Wiring Diagram .......................................................... 27
LT 9400 Mid/High Loudspeaker Crossover Wiring Diagram .......................................................... 27
LT 6403 and LT 9403 Passive or Bi-amp Loudspeaker Configuration ........................................... 28
Rotating the Waveguide....................................................................................................................... 29
High Frequency Compression Driver Replacement Procedure................................................... 30
High Frequency Compression Driver Diaphragm Replacement Procedure.........................30-31
Accessories Used With the Panaray LT Loudspeakers.................................................................. 32
Service Manual Revision History....................................................................................................... 33
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Specifications
Top/Bottom LT 6403 Full Range Loudspeake r
Rear
FrontFront (with Grille)
Top/Bottom LT 9403 Full Range Loudspeake r
Front
SideFront (with grille)
RearSide
Dimensions:
22.2" D x 24.10" W x 34.4" H
(612mm x 564mm x 873mm)
Weight:
Unpacked: 135lb (61kg)
Packaged: 160lb (73kg)
Dimensions:
22.2" D x 24.10" W x 34.4" H
(612mm x 564mm x 873mm)
Weight:
Unpacked: 135lb (61kg)
Packaged: 160lb (73kg)
