Bose LT 6400 Manual Download

Page: 11 / 35

Main Part List

Panaray

LT 6403 Full-Range

Loudspeaker (see Figure 5)

Item

Number

Description Part

Number

for Product

Code 037830

and 037831

Part Number

for Product

Code 040180

and 040181

Qty. Note

GRILLE ASSY, LTFR, BLACK
GRILLE ASSY, LTFR, WHITE
(INCLUDES SCREWS, TAPE,
LOGO, FASTENER & SPRING)

286533
291903

297530
298590

SCREWS, GRILLE, BLACK
SCREWS, GRILLE, WHITE

276847
291904

3 GASKET,

INPUT

PANEL

1 4

INPUT PANEL ASSY, BLACK
INPUT PANEL ASSY, WHITE

286534
291906

297531
299313

SCREW, INPUT PANEL

6 CROSSOVER

BOARD

ASSY

286536

297508 1

7 TRANSFORMER,

AUDIO

285256

298547 1

1 INCH COMPRESSION DRIVER

286543

V2 SPEAKER ASSY, BLACK
V2 SPEAKER ASSY, SILVER

276850
292117

298172
298559

WOOFER, 15 INCH, LTFR

286542

11 SCREW,

WOOFER

286538

297532

8 4

LOGO ASSY, LT FR, BLACK
LOGO ASSY, LT FR, WHITE
(INCLUDES LOGO, TAPE,
FASTENER & SPRING)

276848
291905

KIT, DIAPHRAGM, 1 INCH
COMPRESSION DRIVER, LTFR

286544 286544

SCREW, 3/8 X 16, LT-III

289971

Note:

Product codes 040180 and 040181 are RoHS compliant versions of the Model

6403 loudspeaker. Only the RoHS compliant parts listed in the above table can be used.
The Model 6403 loudspeaker, product codes 037830 and 037831 can use both part
numbers listed above.

Summary of Contents for LT 6400

Page 1: ...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 Ra...

Page 2: ...op Bottom LT 9403 Full Range Loudspeaker Front Side Front with grille Rear Side 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 ...

Page 3: ...sions 22 6 D x 24 10 W x 25 2 H 574mm x 612mm x 640mm Weight Unpacked 80 lb 36 29 kg Packaged 102 lb 46 27 kg LT 9400 Mid High Frequency Loudspeaker Dimensions 22 6 D x 24 10 W x 25 2 H 574mm x 612mm x 640mm Weight Unpacked 80 lb 36 29 kg Packaged 102 lb 46 27 kg ...

Page 4: ...L Maximum SPL pink noise 1M rated power 121 dB SPL 127 dB SPL peak 118 dB SPL 124 dB SPL peak 120 dB SPL 126 dB SPL peak Low Frequency HPF 50 Hz 4th order or better LPF 300Hz 2nd order or better Recommended Crossover Internal Crossover Low Frequency 300Hz Mid High 1 8kHz Mid High Frequency HPF 300Hz 2nd order or better Frequency Range 3 dB 50 Hz 16 kHz Beamwidth 6dB point average 800 5 kHz 6403 Sp...

Page 5: ...W Impedance 8 Ohms 8 Ohms Sensitivity 1W 1M 100 dB SPL 101 dB SPL Maximum SPL pink noise 1M rated power 120 dB SPL 126 dB SPL peak 121 dB SPL 127 dB SPL peak Internal Crossover Mid High Frequency 1 8kHz Mid High Frequency 1 8kHz Frequency Range 3 dB 200 Hz 16 kHz 200 Hz 16 kHz Beamwidth 6dB point average 800 5 kHz Horizontal 65 degrees Vertical 52 degrees Horizontal 93 degrees Vertical 52 degrees ...

Page 6: ...rossover network is utilized and a single amplified signal is connected to the loudspeaker In bi amplified mode the low frequency and mid high frequency drivers are accessed through separate pins on the NL4 connectors Panaray LT 6400 and LT 9400 Mid High Frequency Loudspeakers The Panaray LT 6400 and LT 9400 Mid High Frequency Loudspeakers are essentially the same as the LT 6403 and LT 9403 full r...

Page 7: ...Item Number Description Bose Part Number Vendor Part Number Qty 1 KIT CARTON 6403FR CONSISTS OF EPE COVER 286539 LT6403 5 111 2 2 CUSHIONING MATERIAL LT6403 5 106 1 3 PE BAG LT9702 III 5 108 1 4 OWNER S MANUAL 286541 BOSE LT6403 1 5 PE BAG LT6403 5 109 1 6 TRIANGLE PAPER LT6403 5 103 4 7 CARTON LT6403 LT6403 5 107 1 ...

Page 8: ...e Part Number Vendor Part Number Qty 1 PAPER LT6400 674X712X120MM LT6400 5 101 2 2 CUSHIONING MATERIAL LT6400 674X712X120MM LT6400 5 102 2 3 PE BAG 1425X1100X0 04MM LT6400 5 103 1 4 TRIANGLE PAPER LT6403 618X575X0 3MM LT6400 5 2 5 USER MANUAL 276859 1 6 PE BAG 310X220X0 04MM LT6400 5 1 7 CARTON LT6400 698X726X774MM LT6400 5 104 1 ...

Page 9: ...Item Number Description Bose Part Number Vendor Part Number Qty 1 KIT CARTON 9403FR CONSISTS OF EPE COVER 286540 LT6403 5 111 2 2 CUSHIONING MATERIAL LT6403 5 106 1 3 PE BAG LT9702 III 5 108 1 4 OWNER S MANUAL 286541 BOSE LT9403 1 5 PE BAG LT6403 5 109 1 6 TRIANGLE PAPER LT6403 5 103 4 7 CARTON LT6403 LT6403 5 107 1 ...

Page 10: ...e Part Number Vendor Part Number Qty 1 PAPER LT6400 674X712X120MM LT6400 5 101 2 2 CUSHIONING MATERIAL LT6400 674X712X120MM LT6400 5 102 2 3 PE BAG 1425X1100X0 04MM LT6400 5 103 1 4 TRIANGLE PAPER LT6403 618X575X0 3MM LT6400 5 2 5 USER MANUAL 276859 1 6 PE BAG 310X220X0 04MM LT6400 5 1 7 CARTON LT6400 698X726X774MM LT6400 5 104 1 ...

Page 11: ...R BOARD ASSY 286536 297508 1 7 TRANSFORMER AUDIO 285256 298547 1 8 1 INCH COMPRESSION DRIVER 286543 286543 1 9 V2 SPEAKER ASSY BLACK V2 SPEAKER ASSY SILVER 276850 292117 298172 298559 1 10 WOOFER 15 INCH LTFR 286542 286542 1 11 SCREW WOOFER 286538 297532 8 4 LOGO ASSY LT FR BLACK LOGO ASSY LT FR WHITE INCLUDES LOGO TAPE FASTENER SPRING 276848 291905 276848 291905 1 KIT DIAPHRAGM 1 INCH COMPRESSION...

Page 12: ...12 11 10 8 9 2 3 4 5 6 7 1 Figure 5 Panaray LT 6403 Loudspeaker Exploded View ...

Page 13: ...T PANEL 1 10 INPUT PANEL ASSEMBLY BLACK INPUT PANEL ASSEMBLY WHITE 291910 001 291910 002 297509 001 297509 002 1 11 SCREW 4X18MM BLACK 6 4 12 WASHER NYLON 7 4 13 CROSSOVER PCB ASSEMBLY 299314 1 14 SCREW 4X15MM BLACK 7 4 15 1 INCH COMP DRIVER LTFR 286543 286543 1 16 VEE TWO SPEAKER ASSY BLK VEE TWO SPEAKER ASSY WHT 276850 292117 298172 298559 1 17 SCREW 4X12MM BLACK 3 4 18 SCREW 6X40MM BLACK 12 4 1...

Page 14: ...14 Figure 6 Panaray LT 6400 Loudspeaker Exploded View ...

Page 15: ...RD ASSY 9403 286537 297534 1 7 TRANSFORMER AUDIO 285256 298547 1 8 1 INCH COMPRESSION DRIVER 286543 286543 1 9 V2 SPEAKER ASSY BLACK V2 SPEAKER ASSY SILVER 276850 292117 298172 298559 1 10 WOOFER 15 INCH LTFR 286542 286542 1 11 SCREW WOOFER 286538 297532 8 4 LOGO ASSY LT FR BLACK LOGO ASSY LT FR WHITE INCLUDES LOGO WITH TAPE FASTENER SPRING 276848 291905 276848 291905 1 KIT DIAPHRAGM 1 INCH COMPRE...

Page 16: ...16 Figure 7 Panaray LT 9403 Loudspeaker Exploded View 1 3 4 5 6 7 2 10 11 8 9 ...

Page 17: ...T PANEL 1 10 INPUT PANEL ASSEMBLY BLACK INPUT PANEL ASSEMBLY WHITE 291910 001 291910 002 297506 001 297506 002 1 11 SCREW 4X18MM BLACK 6 4 12 WASHER NYLON 7 4 13 CROSSOVER PCB ASSEMBLY 299315 1 14 SCREW 4X15MM BLACK 7 4 15 1 INCH COMP DRIVER LTFR 286543 286543 1 16 VEE TWO SPEAKER ASSY BLK VEE TWO SPEAKER ASSY WHT 276850 292117 298172 298559 1 17 SCREW 4X12MM BLACK 3 4 18 SCREW 6X40MM BLACK 12 4 1...

Page 18: ...18 Figure 8 Panaray LT 9400 Loudspeaker Exploded View ...

Page 19: ... rear panel Lift off the crossover PCB assembly 5 Audio Transformer Removal 5 1 Remove the sixteen screws that secure the rear panel to the cabinet Lift off the rear panel Unplug the cable harness at X1 5 2 Remove the two screws that secure the audio transformer to the rear panel Lift off the audio transformer 6 High Frequency Compression Driver Removal 6 1 Remove the sixteen screws that secure th...

Page 20: ...ove 2 2 On the back of the grille carefully re move the slotted washer that retains the spring and spacer against the back of the grille Note the direction the spacer faces Slide the spring and spacer off of the logo post 3 Input Panel Assembly Removal 3 1 Remove the six screws 11 that secure the input panel assembly 10 to the cabinet Disconnect the cables that plug into the PCB Lift out the assem...

Page 21: ...e screws are located at the four corners of the V2 assem bly Do not remove the other screws around the casting Carefully lift the assembly out of the cabinet Disassembly Test Procedures Test Procedures Test Cable for the Panaray LT 6403 LT 6400 LT 9403 and LT 9400 Loudspeakers You will need to make up a test cable in order to be able to perform the tests below Parts Required 1 Neutrik Speakon NL4F...

Page 22: ...m 10 Hz to 2 kHz 3 3 Lower the applied input to 3 Vrms and sweep the input frequency from 2 kHz to 5 kHz 3 4 Listen for any buzzes rattles or other extraneous noises from the loudspeaker 4 High Frequency Power Sweep Test 4 1 Apply a 3 Vrms 1 0 kHz signal to the speaker input terminals 4 2 Sweep the input frequency from 1 0 kHz to 5 kHz 4 3 Listen for any buzzes rattles or other extraneous noises f...

Page 23: ...23 Figure 9 Input Board Layout Diagram ...

Page 24: ...F 250V 40uF 250V C2 10uF 200V 4 7uF 200V C3 40uF 200V 40uF 200V C4 60uF 200V Jumper C5 4 7uF 100V 4 7uF 100V C6 3 9uF 100V 3 9uF 100V C7 20uF 100V 20uF 100V C8 20uF 100V 20uF 200V C9 5uF 100V 5uF 200V Inductors L1 6mh 0 8 Ohms 6mh 0 8 Ohms L2 9mh 1 1 Ohms 32mh 1 6 Ohms L3 68mh 0 7 Ohms 68mh 0 7 Ohms L4 27mh 0 4 Ohms 27mh 0 4 Ohms L5 1 2mh 0 3 Ohms Jumper L6 68mh 0 6 Ohms 68mh 0 6 Ohms L7 82mh 0 7 ...

Page 25: ...ot used Not used C2 Not used Not used C3 40uF 200V 40uF 200V C4 Not used Not used C5 4 7uF 100V 4 7uF 100V C6 3 9uF 100V 3 9uF 100V C7 20uF 100V 20uF 100V C8 20uF 100V 20uF 200V C9 5uF 100V 5uF 200V Inductors L1 Not used Not used L2 Not used Not used L3 68mh 0 7 Ohms 68mh 0 7 Ohms L4 27mh 0 4 Ohms 27mh 0 4 Ohms L5 Not used Not used L6 68mh 0 6 Ohms 68mh 0 6 Ohms L7 82mh 0 7 Ohms 82mh 0 7 Ohms L8 5...

Page 26: ...26 LT 6403 and LT 9403 Crossover Wiring Diagrams ...

Page 27: ...27 LT 6400 Mid High Loudspeaker Crossover Wiring Diagram LT 9400 Mid High Loudspeaker Crossover Wiring Diagram ...

Page 28: ...osition Note The procedure below does not apply to the Panaray LT 6400 and LT 9400 speakers The LT 6403 and LT 9403 loudspeaker s configuration can be changed internally to operate in either passive or bi amped mode by changing the position of a jumpered plug on the input panel PCB You simply move the jumpered plug from one board connector to another Refer to the steps below ...

Page 29: ... be rotated 90 degrees to allow the speaker to be mounted either vertically or horizontally Refer to the steps below Note The LT 6400 and LT 9400 do not have woofer chambers as shown in the diagrams below 1 Remove the grille 2 Remove the waveguide 3 Rotate the waveguide 4 Re install the grille 5 Rotate the logo ...

Page 30: ...he rear of the loudspeaker cabinet and secure with 4 screws 9 Reconnect the BLUE wire to the positive terminal and the BLACK wire to the negative terminal 10 Re assemble the loudspeaker 11 Reconnect the loudspeaker input connections 12 Turn on the amplifier High Frequency Compression Driver Diaphragm Replacement Procedure To remove the compression driver from the loudspeaker cabinet 1 Select a cle...

Page 31: ... its carton 10 Grasp the diaphragm assembly around its edges and gently place it onto the front of the compression driver assembly Do not press down on the diaphragm assembly as this could cause the coil on the underside of the diaphragm assembly to be crushed against the front of the compression driver assembly 11 Slowly and gently rotate the diaphragm assembly so that the coil is worked into the...

Page 32: ...esets for each Panaray speaker and combination of speakers Note There are no discrete EQ cards available for the Panaray LT 6403 LT 9403 or LT 6400 LT 9400 Loudspeakers You would use either a Panaray Digital Controller or a parametric equal izer with the appropriate high pass and low pass filters Refer to the EQ curves in the specifica tions section of this manual Speaker Product Code Panaray LT 3...

Page 33: ...ges Affected 6 05 00 Document released at revision 00 Service manual release All 4 06 01 Added LT 6400 and LT 9400 loudspeaker information Added LT 6403 and LT 9403 white variant information New product release Various 9 06 02 Added RoHS compliant parts information RoHS initiative Main part lists ...

Page 34: ... 2006 Bose Corporation Reference Number 285327 SM Rev 02 Service Manual Panaray LT 6403 and LT 9403 Full Range Loudspeakers Panaray LT 6400 and LT 9400 Mid High Frequency Loudspeakers ...

Page 35: ...SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose Corporation The Mountain Framingham Massachusetts USA 01701 Reference Number 285327 SM Rev 02 9 2006 P http serviceops bose com ...

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