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Car audio systems and stereo equipment, amplifiers, speakers, subwoofers, cd changer, mp3 player - Pioneer, Alpine, Sony, Kenwood, Clarion, JVC - service manuals and repair guides

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File name:321 Service Manual_Part1.pdf
[preview 321]
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Mfg:Bose
Model:321 🔎
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Descr:Service Manual
Group:Electronics > Automobile > Car Audio
Uploaded:02-01-2011
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File name 321 schematics.pdf

Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 1 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 2 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 3 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 4 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 5 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 6 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 7 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 8 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 9 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 10 of 12 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 11 of 12 Service Manual Part Number 263493 Rev. 0 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Main PCB PCB Part Number 263069-001 Rev. 0 Sheet 12 of 12 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Console Display PCB PCB Part Number 254550-001 Rev. 0 Sheet 1 of 1 Service Manual Part Number 263493 Rev. 0 3-2-1 Home Entertainment System Bass Module PCB Part Number 254574-001 Rev. 1 Sheet 1 of 1
File name 321 Service Manual_Part1.pdf

CONTENTS Accessories ... 2 Safety Information ...3 Electrostatic Discharge Sensitive (ESDS) Device Handling ...3 Warranty ...3 Specifications ... 4-7 Figure 1. 3-2-1 Console Block Diagram ... 8 Disassembly/Assembly Procedures ... 9-13 Test Procedures ... 14-23 Figure 2. Laser voltage test points ... 16 Figure 3. Laser current rating label ... 16 Figure 4. AM Loop Antenna Test Setup ... 17 Part List Notes ... 24 Main Part List, Console Assembly (see Figure 5) ... 24 Figure 5. Console Exploded View ... 25 Main Part List, Bass Module Assembly (see Figure 6) ... 26 Figure 6. Bass Module Assembly Exploded View ... 26 Main Part List, Bass Module PCB Assembly (see Figure 7) ... 27 Figure 7. Bass Module PCB Assembly Exploded View ... 27 Electrical Part Lists ... 28-46 Console Main PCB Assembly ... 28-43 Console LCD Display PCB Assembly ... 43-44 Bass Module PCB Assembly ... 45-46 Packaging Part List, 3-2-1 Home Theater System Syst
File name 321 Service Manual_Part2_Part1.pdf

1 2 3 4 5 6 7 8 9 Preliminary 10 11 12 13 14 14 11 15 Figure 8. 3-2-1 Home Theater System Packaging View 47 ACCESSORY KIT PART LIST 3-2-1 Home Theater System Accessory Kit (see Figure 9) Item Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Description REMOTE CONTROL, DVD IR, GRAPHITE PLAT WHITE CABLE, RCA, 6 FT FM DIPOLE ANTENNA BUMPER, RECESSED, FOOT, .88" FOOT, CLEAR, .312X.085, 4' BATTERY, CARBON, AA SIZE BAG, POLY, 3X3.5 PACKING, TRAY, ACCY, PET 30 CABLE, VIDEO, 6 FT, YL AM ANTENNA ASSY, CD20 LINE CORD, 120V, POL, DETACHABLE, BLK PACKING, INSERT, SCORED SHEET CABLE, ARRAY, 9 PIN, GRAPHITE PLAT WHITE CABLE, BASS MODULE, 15 PIN, GRAPHITE PLAT WHITE CARTON, D/C, ACCY KIT W/ART Part Number 259820-001 259820-002 185931-01 261619-001 142839 178321-04 147538 194392 260454-01 183200 199824-002 260082-001 260096 255123-001 255123-002 255122-001 255122-002 260456-01 Note 3 1 9 10 3 4x 4 12 11 13 14 8 2x 6 7 2 2x 5 15 Figure 9. Accessory Kit Exploded View 48 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary BoseŽ P/N: 177279, TDA 7396 Power Amplifier PIN FUNCTION 1 2 3 4 5 6 7 - 14 A + + D - 13 12 11 10 B + + C - 9 8 Bose P/N: 178352-09, LM78M09 Regulator; Bose P/N: 178352-10, LM78M10 Regulator 49 1. A OUTPUT 2. A -INPUT 3. A +INPUT 4. +Vcc 5. B +INPUT 6. B -INPUT 7. B OUTPUT 8. C OUTPUT 9. C -INPUT 10. C +INPUT 11. -Vcc 12. D +INPUT 13. D -INPUT 14. D OUTPUT Bose P/N: 194024, NJM3403, Quad Op-amp INTEGRATED CIRCUIT DIAGRAMS BoseŽ P/N: 193846-001, 3.0V Regulator 50 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary Bose P/N: 199693, PLL Frequency Synthesizer, MPF-24 51 INTEGRATED CIRCUIT DIAGRAMS BoseŽ P/N: 254107-001, DVD Decoder, CS98000 52 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary BoseŽ P/N: 254107-001, DVD Decoder, CS98000 53 INTEGRATED CIRCUIT DIAGRAMS BoseŽ P/N: 254191, DSP, ADSP21065LKS 54 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary BoseŽ P/N: 254182, SDRAM, 64MBIT Bose P/N: 258495-001, 2.5V Regulator Bose P/N: 254192, CODEC, CS4228A-KS 55 INTEGRATED CIRCUIT DIAGRAMS Bose P/N: 256088-001, Digital Video Encoder, CS4955-CQ 56 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary BoseŽ P/N: 254561-001, AM/FM Tuner, MFP-30S Bose P/N: 259495-001, Audio/Video Switch, 4 Input, 2 Channel, SSOP36 57 INTEGRATED CIRCUIT DIAGRAMS BoseŽ P/N: 256087-001, DAC, CS4340-KS Bose P/N: 256089-003, Flash Memory, 16M, 3.3V, TSSOP 58 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary BoseŽ P/N: 259548-001 Quad Exclusive OR Bose P/N: 263182-001 Quad Buffer Bose P/N: 256088-001, Digital Video Encoder, CS4955-CQ 59 INTEGRATED CIRCUIT DIAGRAMS Bose P/N: 256088-001, Digital Video Encoder, CS4955-CQ 60 Preliminary INTEGRATED CIRCUIT DIAGRAMS Preliminary BoseŽ P/N: 254193-001, SPDIF Receiver, CS8415A 61
File name 321 Service Manual_Part2_Part2.pdf

INTEGRATED CIRCUIT DIAGRAMS BoseŽ P/N: 254541-001, Power Amplifier, 4x30W, HSIP2 Bose P/N: 184044, EEPROM, 24C01A Bose P/N: 258464, 5V Inverter, 74VCHU04 GND 1 Top View 3 Vcc RESET 2 Pin Function 1. GND 2. RESET Output remains low while Vcc is below the reset threshold, and for a period of time after Vcc rises above the reset threshold. 3. Vcc Supply voltage Bose P/N: 191158-01, MAX809 Reset IC 62 Preliminary Composite or S-Video input Video Monitor Audio Signal Generator SPDIF converter dB meter APPENDIX Optical converter +15V Console DC power test cable IBM compatible PC 3-2-1 Console TAP cable DC power supply RF Signal Generator RF input 63 Audio, SPDIF or Optical input Audio output Figure 10. 3-2-1 Console Test Setup Diagram Preliminary APPENDIX Audio signal generator Bass module test cable Distortion meter Bass Module Db meter AC mains cable Figure 11. 3-2-1 Bass Module Test Setup Diagram Array speaker rear Driver 1 + terminal Driver 1 - terminal Driver 2 + terminal Driver 2 - terminal Figure 12. 3-2-1 Speaker Array Wiring Diagram 64 Preliminary APPENDIX Console Main PCB troubleshooting Disassembly Remove the top cover of the console using Console Disassembly/Assembly procedure 1. Use the other disassembly/assembly procedures to remove the CD/DVD mechanism. Once that is out of the way, remove the casting over the main PCB. You will need to remove the clip on the amplifier IC and to pry the amplifier IC slightly away from the heatsink before you can remove the casting. Make sure that the LCD display board is still connected for troubleshooting. You will be able to power up and troubleshoot the board while it is still in the console base with the casting and heatsink removed. Do not connect the 9 pin speaker array cable to J150. Make sure the console volume level is all the way down so that the amplifier IC U150 does not overheat when operated with no heatsink on it. Test Cables Cable Extenders In order to troubleshoot the main PCB in the console with the CD/DVD mechanism connected, you will need an extender 40 pin ATAPI cable and an extender computer power supply cable. Parts needed: 15 pin female subminiature D connector DC power supply 4 ft of red AWG 18 wire 4 ft of black AWG 18 wire 1. Twist the black and red wires together to make a twisted pair. This is to help prevent coupling noise into the console. Strip about 1/4" of insulation from one end of each of the wires. 2. On the rear of the 15 pin D-sub connector, solder the red wire to pin 7 and the black wire to pin 2. Refer to the figure below. 8 7 6 5 4 3 2 1 Both of these parts are readily available at any computer or electronics parts store. Extending these cables will allow you to use the CD/DVD drive to provide a video signal while you signal trace on the main PCB with the casting removed. Plug the one end of the longer ATAPI cable into the main PCB. Plug the other end of the ATAPI cable into the back of the CD/DVD mechanism. Be sure
File name 321 Service Manual_Part2_Part3.pdf

APPENDIX TAP Commands for control of the 3-2-1 media center (continued) Note: In the following tables, (cr) denotes carriage return, (b) denotes space, all other characters are ASCII in the cases shown. Audio Processing Subsystem (continued) Message Function Mute outputs Command from External MUbcbv(cr) 3-2-1 Response ACK>(cr) Comments "c" specifies which channel to mute. The values are L,C,R,LS,RS,B or ALL. "v" is either ON (muted) or OFF (un-muted). All channels can be controlled individually with a comma separated string of values. The assumed order is as above. "v" is a value between ­10 and 6. Displays memory locations. "s" is the Hex starting memory address. "e" is the Hex ending memory address. "n" is the number of polls per second. "mm" is the presentation mode. 4W is 4 axis wide, 2W is two axis wide, 4N is four axis narrow and 2N is two axis narrow. Ooze setting Peek at memory locations Set presentation mode Reset the audio DSP Surround balance control Surround configuration control Set Surround level Source select OObv(cr) PEbs,e,n(cr) ACK>(cr) ACK>(cr) PMbmm(cr) ACK>(cr) Preliminary RE(cr) SBbv(cr) SCbcc(cr) ACK>(cr) ACK>(cr) ACK>(cr) "v" is a value between ­10 and 10. "cc" is the configuration which can be: VF for virtual-Front, RS for Real/Rear/Spitter and RF for Real/Rear/Full-Range "v" is a value between ­10 and 6. "c" is the channel specified. Choices are L,C,R,LS,RS,B. "s" is the source for the channel. Choices are D for digital, A for analog, S for 1kHz sine, DL for digital left, C for center, DR for digital right, LS for left surround, RS for right surround, LFE, AL for analog left and AR for analog right. SLbv(cr) SObcbs(cr) ACK>(cr) ACK>(cr) Request status information Execute a debug test Set Tone controls ST(cr) TNbn(cr) TObc,v(cr) TBDL ACK>(cr) ACK>(cr) "n" is the number of the test to be run. "c" is the control to be changed. The controls are B (bass), T (treble) and FE (film EQ). "v" is the value to set the control to. For B and T, the value is a number between ­128 and 127. For FE, the values can be: ON for Film EQ on, OFF for film EQ off, BON for bass boost from film EQ on, BOFF which turns off the film EQ bass boost, HON for HF cut from film EQ on and HOFF which turns off the film EQ HF cut. "c" is the channel to be modified. The choices are L,C,R,LS,RS,B or ALL. "v" is the attenuation value in dB down from maximum. Set volume VObcbv(cr) ACK>(cr) 77 APPENDIX Console Main PCB Video Troubleshooting and Waveforms Note: Refer the 3-2-1 Console schematics for the following information. The video circuitry will not operate without the 27 MHz video clock signal VDO_CLK. This signal originates at crystal Y7056 [sheet 5, B3], fed out as signal XM27HZ over to inverter U7008 [sheet 5, B1] and output as signal DX27MHZ. This clock signal is then sent over to pin 202 of the DVD decoder IC U3000 [sheet 12, B/C2]. It is fed out of U3000 as the buffered 27 MHz clock signal VDO_CLK at pin 154 [sheet 3, D6]. From there
File name 321 Service Manual_Part2_Part4.pdf

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose Corporation The Mountain Framingham Massachusetts USA 01701 P/N: 263493 Rev. a x/2001 (H) FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-233-4408 http://serviceops.bose.com

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