Bose-321-Service-Manual 电路图 维修手册.pdf

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1、2012 Bose Corporation Reference Number 273029- SM Rev. 12 Service Manual 321, 321GS and 321GSX Series II Home Entertainment Systems (US and non-US Standard and Premium Versions) Electronic Copy Only 321 Series II System 321GS Series II System RadioFans.CN 收音机爱 好者资料库 2 CONTENTS Safety Information .3

2、Warranty .3 Product Description .4 Accessories .4 Specifications:. 5-8 Electrostatic Discharge Sensitive (ESDS) Device Handling .9 Part List Notes.9 Packaging Part List, 321 Series II Home Entertainment System (see Figure 1). 10-11 Figure 1. 3 2 1 Series II Home Entertainment System Packaging View .

3、11 Packaging Part List, 321 Series II System Accessory Kit (see Figure 2) .12 Figure 2. Accessory Kit Exploded View.12 Main Part List, 321 II and 321GS II Console Assembly (see Figure 3) .13 Figure 3. 3 2 1 Series II Standard Console Exploded View .14 Main Part List, 321GSX Console Assembly (see Fig

4、ure 4) .15 Figure 4. 3 2 1GSX Series II Premium Console Exploded View.16 Main Part List, Bass Module (see Figure 5).17 Figure 5a. Bass Module Exploded View (units built before 4/27/09) .17 Figure 5b. Bass Module Exploded View (units built after 4/27/09) .18 Main Part List, Standard 321 Array Assembl

5、y (see Figure 6) .19 Figure 6. Standard 3 2 1 Array Assembly Exploded View .19 Main Part List, 321 GS Array Assembly (see Figure 7) .20 Figure 7. 3 2 1 GS Array Assembly Exploded View .20 Electrical Part Lists . 21-46 Console Main PCB Assembly . 21-34 Console Tuner PCB Assembly . 35-38 Bass Module D

6、SP/Amplifier PCB Assembly . 39-45 Bass Module Input/Output PCB Assembly .46 Disassembly Procedures . 47-53 Console Procedures . 47-50 Bass Module Procedures . 51-52 Disassembly Procedures .53 Standard Satellite Array Procedures.53 Gemstone Satellite Array Procedures .53 Test Procedures . 54-63 Conso

7、le Procedures . 54-61 Bass Module Procedures .62 Satellite Array Procedures .63 Figure 8. 3 2 1 Series II Console Test Setup Diagram.65 Figure 9. 3 2 1 Series II Bass Module Test Setup Diagram .66 Computer Setup Procedure . 67-68 TAP Cable Construction.69 Bass Module Test Cable Construction .70 Cons

8、ole Test Cable Construction.71 Putting the Console into TAP mode.72 Console TAP Commands. 72-75 Changing the Region Code .76 Obtaining System Information from the Media Center Display . 77-78 DVD Lock options .79 321 Series II System Date of Manufacture Information.80 IC Diagrams. 81-90 Troubleshoot

9、ing . 91-92 Glossary of Terms.93 Service Manual Revision History .94 RadioFans.CN 收音机爱 好者资料库 3 SAFETY INFORMATION 1. Parts that have special safety characteristics are identified by the symbol on schematics or by special notes on the parts list. Use only replacement parts that have critical characte

10、ristics recommended by the manufacturer. 2. Make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit before returning the unit to the customer. Use the following checks to perform these measurements: A. Leakage Current Hot Check

11、- With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliance

12、s and Underwriters Laboratories (UL) UL6500 / UL60065 / IEC 60065 paragraph 9.1.1. With the unit AC switch first in the ON position and then in OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal parts of the unit (antennas, handle bracket, metal cab

13、inet, screwheads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the unit power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE LIMIT

14、S SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER. B. Insulation Resistance Test Cold Check- (1) Unplug the power supply and connect a jumper wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Me

15、asure the resistance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the unit. When testing 3 wire products, the resistance measured to the product enclosure should be between 2 and infinite MOhms. Also, the resistance measured to exposed input/output connecto

16、rs should be between 4 and infinite MOhms. When testing 2 wire prod- ucts, the resistance measured to exposed input/output connectors should be between 4 and infinite MOhms. If it is not within the limits specified, there is the possibility of a shock hazard, and the unit must be repaired and rechec

17、ked before it is returned to the customer. CAUTION: The Bose 321 Series II Home Entertainment System contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service. PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORM

18、ATION 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. The Bose 3 2 1 and 3 2 1GS Series II Home Entertainment Syste

19、ms are covered by a limited 1- year transferable warranty. WARRANTY RadioFans.CN 收音机爱 好者资料库 4 Overview: The 3 2 1 Series II Home Entertainment Systems are the replacements for the 3 2 1 and 3 2 1GS Series I Home Entertainment Systems. They use the same system concept of a console with a dedicated ba

20、ss module with TrueSpaceTM signal processed surround sound from 2 satellite arrays. The 3 2 1 Series II product line consists of three total systems, the 3 2 1 Series II and 3 2 1GS Series II systems, and the 3 2 1GSX system. There are a few differences between these systems. The 3 2 1 Series II and

21、 the 3 2 1GS Series II system consoles do not contain a hard disc drive. The 3 2 1GSX console contains a hard disc drive with uMusic functionality. Refer to the system components listing below. The 3 2 1 Series II system uses the standard, non- hard drive version of the console with graph- ite cloth

22、 covered full size array speakers. The 3 2 1GS Series II systems use the standard non- hard drive console with either graphite or silver metal grille array speakers with a silver or graphite array cable. These arrays are smaller than the non- GS arrays. Both the standard and premium consoles will pl

23、ay video DVDs, DVD- R and DVD+R discs, audio CDs, Video CDs, CD- R and CD- RWs, and MP3 CDs. MP3 disc tracks must be burned in a single closed session. The MP3 disc format must be ISO9660 and each file must have an “.mp3” extension and have no other periods in the filename. The 3 2 1GSX system premi

24、um console will also play stored music in the form of MP3 files stored on the hard disc drive. There is only one version of the bass module. The bass module electronics house some signal processing, power supplies and amplification for the console. The console and bass module are not compatible with

25、 the 3 2 1 Series I console and bass module. They cannot be used to re- place the other Series components. The speaker arrays are the same as currently used on the 3 2 1 and 3 2 1GS systems. The systems includes an enhanced universal type IR remote control similar to that used on the 3 2 1GS Series

26、I system. The uMusic remote used with the 321GSX has buttons to control the uMusic funtionality of the hard disc drive in the premium console. These remotes are non- repairable. System Components: 321 Series IIStandard Console Standard Graphite (cloth grilled) Arrays Bass Module Standard Remote Cont

27、rol 321GS Series IIStandard Console GS Arrays, silver or graphite, and color matching array cable Bass Module Standard Remote Control 321GSXPremium Console with HDD GS Arrays, silver or graphite, and color matching array cable Bass Module uMusic Remote Control PRODUCT DESCRIPTION ACCESSORIES The Bos

28、e 3 2 1 and 3 2 1GS Series II Home Entertainment Systems shelf speakers are com- patible with Bose mounting accessories, including the UB- 20 wall brackets, UFS- 20 floor stands and UTS- 20 table stands. 5 SPECIFICATIONS System Specifications: Power Rating: US/Canada:120VAC, 60 Hz, 300W Europe/UK/Au

29、s:220- 240VAC, 50/60 Hz, 300W Japan:100VAC, 50/60 Hz, 300W Dual Voltage:115/230VAC, 50/60 Hz, 300W Console Inputs:VIDEO, CAB/SAT, AUX Video Outputs:Composite Video, S- Video, Component Video External Antennas:FM, 75 Ohm F- Connector (PAL, Europe) AM Loop, 2.5 mm mono connector Maximum Ambient Temper

30、ature:45 degrees C Low Frequency Cut-off (typical): Arrays:3 2 1 Array Cube: 180 Hz 3 2 1GS Array Cube: 212 Hz Bass Module:45 Hz Woofer Impedance:1.5 Ohms nominal DC resistance single woofer Weights: 3 2 1 Series II Packed System:47.9 lb (21.7 kg) 3 2 1GS Series II Packed System:44.1 lb (20.0 kg) Co

31、nsole:6.8 lb (3.08 kg) Bass Module:24.9 lb (11.77 kg) 3 2 1 Arrays, each:3.0 lb (1.40 kg) 3 2 1GS Arrays, each:1.1 lb (0.50 kg) IR Remote Control (batteries installed):0.44 lb (0.20 kg) Dimensions: Console:13.8 x 10.0 x 3.2 inches (34.9 x 25.3 x 8.2 cm) Bass Module:14 x 7.5 x 20.1 inches (35.6 x 18.

32、4 x 51.1 cm) Bass Module internal volume:1205 cubic inches (19.7 liters) 3 2 1 Arrays:7.9 x 5.3 x 3.4 inches (200 x 134 x 86 mm) 3 2 1GS Arrays:5.6 x 2.6 x 4.2 inches (142 x 65 x 106 mm) IR Remote:9.0 x 2.6 x 1.2 inches (229.6 x 64.8 x 31.2 mm) Distortion and Noise:- 78 dB THD+N, unweighted, 22- 22

33、kHz for a 1 kHz signal at - 1 dB - 90 dB THD+N, unweighted, 22- 22 kHz for a 1 kHz signal at - 10 dB Dynamic Range:- 90 dB THD+N, unweighted, 22- 22 kHz for a 1 kHz signal at - 60 dB Distortion: 0.1% 0.5 W Output Noise: 400 mVrms, A- weighted 6 System Specifications (continued): Noise when Muted: 400 uVrms, A- weighted DC Offset: 40 dB 1 kHz, 30 dB 10 kHz, stereo mode Console Specifications: Compression Formats Supported