Bose 2150 Manuale utente

Service Manual

Model 2150

Commercial Power Amplifier

CONTENTS

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.

CAUTION: The Bose®Model 2150 amplifier contains no

user-serviceable parts. To prevent warranty infractions,

refer servicing to warranty service stations or factory service.

Safety Information.............................................................................................................................3

Electrostatic Discharge Sensitive (ESDS) Device Handling.......................................................3

Warranty .............................................................................................................................................3

Specifications................................................................................................................................ 4-5

Amplifier/Driver Board Version Information...................................................................................6

Packaging Part List, Model 2150 Amplifier .....................................................................................6

Part List Notes ..................................................................................................................................7

Main Part List, Model 2150 Amplifier (items not shown on a part drawing) ................................7

Main Part List (Continued), Model 2150 Amplifier (see Figure 1) ................................................8

Figure 1. Model 2150AmplifierTop Cover Removal Exploded View....................................................8

Main Part List (Continued), Model 2150 Amplifier (see Figure 2) ................................................9

Figure 2. Model 2150Amplifier InternalAssemblies Exploded View ..................................................10

Main Part List (Continued), Model 2150 Amplifier (see Figure 3) ..............................................11

Figure3. Model2150Amplifier ModuleExploded View......................................................................11

Electrical Part Lists .................................................................................................................. 12-45

Input ModuleAssembly ............................................................................................................ 12-14

Barrier PCB Assembly (part of Input Module Assembly) ............................................................15

Amplifier PCBAssembly (board part number 6000.0435)...................................................... 16-20

Amplifier PCBAssembly (board part number 8005.0587)...................................................... 21-26

Power Supply PCBAssembly .................................................................................................. 27-29

Switch PCBAssembly............................................................................................................... 30-31

AC Input/Output PCBAssembly.....................................................................................................32

Interface PCB Assembly........................................................................................................... 33-34

Digital Signal Processor (DSP) PCB Assembly ..................................................................... 35-43

Display PCBAssembly .............................................................................................................. 44-45

Disassembly Procedures ......................................................................................................... 46-49

Test Procedures ....................................................................................................................... 50-54

Figure 4. Model 2150 amplifier rear panel .........................................................................................50

Figure 5. Test Setup Diagram ...........................................................................................................50

Figure 6. Model 2150Amplifier Signal Flow Block Diagram ..............................................................55

Theory of Operation ................................................................................................................. 56-65

Circuit Board Layout Diagrams ............................................................................................... 66-73

Integrated Circuit Diagrams .................................................................................................... 74-78

Troubleshooting .............................................................................................................................79

Service Manual Revision History .................................................................................................80

SAFETY INFORMATION

ELECTROSTATIC DISCHARGE SENSITIVE (ESDS)

DEVICE HANDLING

This unit contains ESDS devices. We recommend the following precautions when repairing,

replacing or transporting ESDS devices:

•Perform work at an electrically grounded work station.

•Wear wrist straps that connect to the station or heel straps that connect to conductive

floor mats.

•Avoid touching the leads or contacts of ESDS devices or PC boards even if properly

grounded. Handle boards by the edges only.

•Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert

unprotected devices into materials such as plastic, polystyrene foam, clear plastic bags,

bubble wrap or plastic trays.

The Bose®Model 2150 amplifier is covered by a five-year, transferable, limited warranty.

WARRANTY

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 characteristics

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-With the unit completely reassembled, plug the AC line cord

directly into a 120VAC outlet. (Do not use an isolation transformer during this test.) Use a leak-

age current tester or a metering system that complies with American National Standards Institute

(ANSI) C101.1 "Leakage Current forAppliances" and Underwriters Laboratories (UL) UL6500 /

UL60065 / IEC 60065 paragraph 9.1.1. With the unitAC switch first in the ON position and then in

OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all ex-

posed metal parts of the unit (antennas, handle bracket, metal cabinet, 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 WITHINTHE LIMITS

SPECIFIEDHEREIN INDICATEAPOTENTIALSHOCK HAZARDTHATMUSTBE 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) Measure

the resistance with an ohmmeter between the jumperedAC 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 connectors should be between 4 and infinite MOhms. When testing 2 wire products,

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 rechecked before it is returned to the customer.

SPECIFICATIONS

Power Output, continuous average output power, both channels driven:

150W per channel into 4 or 8 Ohms at 1kHz with 0.5% or less THD

150W per channel at 100V into a 67 Ohm load at 1 kHz with 0.5% or less THD

150W per channel at 70V into a 33 Ohm load at 1 kHz with 0.5% or less THD

Power Output, bridged-mono operation:

300W at 8 or 16 Ohms with 0.5% or less THD

300W at 100V into a 33 Ohm load with 0.5% or less THD

300W at 70V into a 16 Ohm load with 0.5% or less THD

Power Consumption:

60W or less at idle, no input, maximum gain

125W with musical program at 1/8 rated power

250W with musical program at 1/3 rated power

300W at 70V into a 41 Ohm load with 0.5% or less THD

600W at 4 Ohms with a sinewave test tone, rated continuous power at maximum gain

575W at 8 Ohms with a sinewave test tone, rated continuous power at maximum gain

560W at 70V or 100V with a sinewave test tone, rated continuous power at maximum gain

Power Requirements: 120 VAC, 60 Hz +/-20% (US and Canada)

230 VAC, 50 Hz +/-20% (Europe/UK)

240 VAC, 50 Hz +/-20% (Australia)

Output Configurations: Audio output transfomer taps per channel:

100V, 70V, 50V, 35V, 25V, 8 Ohms, 4 Ohms

Frequency Response: 30 Hz to 20 kHz (-3 dB)

Signal to Noise Ratio: > 95 dB,A-Weighted below full bandwidth power

Channel Separation: > 80 dB at 1 kHz

CMRR: > 80 dB at 1 kHz (without Bose®input module)

Slew Rate: > 10V/uSec

Sensitivity: 0.775 Vrms for rated power at 1 kHz

Input Impedance: 50k Ohms balanced, 25k Ohms unbalanced

Maximum Input: +20 dBu (7.75V)

Fusing/Protection: Mains internally fused.Amplifier thermal and

short circuit protection

Dynamic Headroom: 1.2 dB

Full Power Bandwidth: 30 Hz to 20 kHz at 0.5% THD

IM Distortion: 0.2%

THD: < 0.5% rated power, < 0.2% 1/8 rated power

Features:

• Convection Cooling

• 5-segment LED level display, per channel, including signal present and clip indicators

• 3 LED display, per channel, of power, protect and thermal overload

• Standby LED indicates the amplifier is in standby mode

• Data LED (used with the Bose®ACM-1 amplifier control module)

• Level controls can be covered with caps (supplied) to prevent tampering

• Remote control of output level via Euro style connectors

• Standard Dual Input Module with line level inputs via Euro style connectors and XLR jacks,

connected in parallel

• 26 Hz High Pass Filter

• Switched 80 Hz / 120 Hz (12 dB / Octave cut) High Pass Filters

• Switched Clip Limiters

• Terminals for Sequencing Power ON/OFF

• Speaker Output via large gauge Euro style connectors (accepts 12 gauge wire)

• Power Switch, 3 positions, On, Off and Standby

• AC Line Cord (Detachable IEC Type)

• Optional Accessories:

- Computer Control and Monitoring via BoseACM-1 amplifier control module

Physical Characteristics:

CoolingMethod: Convection

Operating Environment: -10 deg C up to 55 deg C, up to 85% RH

StorageEnvironment: -45 deg C up to 70 deg C, up to 85% RH

Dimensions: 3.5" H (2U) x 19.0" W x 16" D

8.9cm x 48.3cm x 40.6cm

Net Weight: 43 lbs. / 19.5 kgs.

Shipping Weight: 48 lbs. / 21.8 kgs.

Regulatory Information: UnitedStates:UL6500,Canada: CAN/CSA

E60065, Europe: EN 60065,Australia/New

Zealand:AS/NZS 3250, Eastern Europe, Far

East, Pacific Rim, Americas and others: IEC

60065 + CB Scheme Certification (Worldwide)

SPECIFICATIONS

MODEL 2150 AMPLIFIER VERSIONS

Description Product Code Voltage

Model 2150 Amplifier, Japan 025985 100V

Model 2150 Amplifier, US/Canada 025986 120V

Model 2150 Amplifier, Euro 025987 220V

Model 2150 Amplifier, UK 025988 230V

Model 2150 Amplifier, Aus 025989 240V

PACKAGING PART LIST

Model2150Amplifier

Item

Number

Description Vendor Part

Number Bose

®®

Part

Number

Qty. Note

- Bag, Plastic, 24x30

Pack amp in bag for shipment 8300.0024 1

- Bag, Poly, 10x16x4mil 8300.0023 1

- Bag, Poly, 4x6x4mil 8300.0046 1

- Foam, Corner, 2U 8700.0060 262193 4

- Carton, 2U, 23 1/4x7 1/2x20 1/8 862003 262119 1

- Manual, Owners, DK/DE/IT/ND/SW

Model 2060/2150 8100.0218 262210 1 EURO

- Manual, Owners, EN/ FR/ SP, Model

2060/2150 8100.0219 262194 1 US/CSA

/EURO/

UK/AUS

- Declaration of Conformity, Bose 2150

amplifier 8110.0012A 262318 1 EURO

- Line Cord, 120V, S250AH 4150.0009 262099 1 US/CSA

- Line Cord, MOD, 3x1.0mm, 10A,

250V 4150.0015 262117 1 AUS

- Line Cord, MOD, 3x1.0mm, 13A,

250V 4150.0016 262118 1 UK

- Line Cord, MOD, 3x1.0mm, 10A,

250V 4150.0017 262083 1 EURO

- Plug, .500, Black (covers level control

shafts after knob removal) 5815.0002 262319 2

- Foot, Rubber, BLK, .81 sq x .3 h 5740.0006 199779 4

AMPLIFIER/DRIVER BOARD VERSION INFORMATION

Units built before June 2005 have the original version of the amplifier PCB assembly. Units built

after that date have a different version of the amplifiier PCB assembly. Units built before June

2005 use amplifier bare board part number 6000.0435. Units built after that date use bare board

part number 8005.0587. The amplifier driver modules for these boards are different as well. The

original version used the black TAO103 module. Newer versions use a PCB assembly with a

heatsink visible on the top of the board. See below.

CAUTION: The driver modules and the amplifier boards used with them are NOT compatible

with the other versions. Any attempts to use an incorrect driver module on an incompatible

amplifier board will result in damage to both. Be sure to use the appropriate schematic, board

layout diagram and parts list for the amplifier PCB assembly in your unit.

Original Version Driver Module, used with

the 6000.0435 Amplifier PCB Newer Version Driver Module, used with the

8005.0587Amplifier PCB

PART LIST NOTES

1. This part is not normally available from Customer Service.Approval from the Field Service

Manager is required before ordering.

2. The individual parts located on the PCBs are listed in the Electrical Part List.

3. This part is critical for safety purposes. Failure to use a substitute replacement with the

same safety characteristics as the recommended replacement part might create shock, fire

and/or other hazards.

4. This part is referenced for informational purposes only. It is not stocked as a repair part.

MAIN PART LIST

Model 2150Amplifier (items not shown on a part drawing)

Item

Number

Description Vendor Part

Number Bose

®®

Part

Number

Qty. Note

- Fuse, MDA, 8A, 250V, US/CSA

(F100 mains fuse) 315-13003-00 262208 1 3

- Fuse, MDA, 4A, 250V,

EURO/UK/AUS (F100 mains fuse) 4605.0001 262209 1 3

- Conn, Plug, Term Block, 4 Pos, Blk

(ch1, ch2 EFX loop, remote level

connectors)

4227.0002 262104 3

- Conn, Plug, Term Block, 3 Pos, Blk

(ch1, ch2 euroblock signal input,

power sequence connectors)

4227.0008 262105 3

- Conn, Term Plug, Cbl Mt, 8 Pos

(ch1, ch2 speaker output connectors) 4227.0026 262106 2

- Conn, .100 CTR, 2-Pin 160-20013-00 262317 1

- Cable, IDC, PLG/HDR, 20 Conductor,

16 inch (signal processor J101) 4148.0017 262182 1

- Harness, 2P, 22 AWG, Blind Mate

(input module power cable) 550-10087-01 182920 1

- Screw, SEMS, PHP, 6-32x1/4, BO,

WAX (attach barrier pcb to input

module plate)

151-30169-01 262115 2 4

Model 2150Amplifier (see Figure 1)

Figure 1. Model 2150 Amplifier Top Cover Removal Exploded View

MAIN PART LIST (CONTINUED)

Item

Number

Description Vendor Part

Number Bose

®®

Part

Number

Qty. Note

1 Knob, Control, 1.18 OD x .5 DP Stem 5710.0001 262101 2

2 Rack Ear, 2U, Carver, Gray 700362.30 262120 2

3 Screw, SEMS, BLK OX, PHP, 10-

32x3/8 151-30170-01 262109 6 4

4 Screw, TF, 6-32x1/4, FHP, UC, ST,

BZ 5113.0037 262113 2 4

5 Screw, TF, 4-40x1/4, FHP, UC, ST,

BZ 5112.0026 199771 12 4

6 Cover, 2U, Bose 2060/2150 700487.30 262102 1

7 Amplifier Chassis Assembly

(refer to Figure 2) 1

Model 2150Amplifier (see Figure 2)

MAIN PART LIST (CONTINUED)

Item

Number

Description Vendor Part

Number Bose

®®

Part

Number

Qty. Note

1 Screw, TF, 6-32x1/4, FHP, UC, ST,

BZ 5113.0037 262113 4 4

2 Amplifier Assembly (refer to Figure 6) 1

3 Nut, Mini STZ, 4-40 152-50004-00 182729 4 4

4 Screw, Mach, BLK OX, PHP, 4-40x1/2

151-20010-05 182717 6 4

5 Slide, Chassis, Input Module Card 159-60003-01 182731 2

6 Shield, Input Module, CV 700490 262103 1

7 Screw, TF, 4-40x1/4, FHP, UC, ST,

BZ 5112.0026 199771 14 4

8 Screw, Sht Mtl, BLK OX, PHP, SERR,

6x1/4 151-30107-01 262108 4 4

9 Panel, I/O, SS, Gray, 1800V 700191.3001 199786 1 4

10 Input PCB Assembly 602-00603-02 262316 1 2

10 Barrier PCB Assembly

(part of input module) 602-00533-02 182774 1 2

11 Screw, MA, 6-32x1/4, PHP, WSHR,

STZ 5113.0006 262112 18 4

12 Interface PCB Assembly, CV, Dual 9000.0445.02 262086 1 2

13 AC Input/Output PCB Assembly 9000.0440.01 262085 1 2

14 Standoff, HX, M/F, 6-32x1-3/4x1/4, AL

5533.0046 262107 6 4

15 Switch PCB Assembly 9000.0439.02 262084 1 2

16 Nut, 6-32, Hex, Kep, STZ 5223.0001 199774 12 4

17 Transformer, Output, 150W, CV 4554.0041 262096 2 3

18 Receptacle, IEC AC Power, Panel-

Mount 4202.0003 262093 1 3

19 Line Filter, 16A/20A 615-00003-00 182763 1 3

20 Screw, Machine, 6-32x5/16, FHP,

BLK 2 4

21 Transformer, Power, CV, 43V/5.4A,

120V (US/CSA) 4554.0044 262097 1 3

21 Transformer, Power, CV, 43V/5.4A,

230V (EURO/UK/AUS) 4554.0042 262098 1 3

22 Screw, SEMS, MA, 8-32x1/4, PHP,

STBZ 5114.0012 262114 4 4

23 Chassis, 2U, 2060/2150 700488.3001 262089 1 4

24 Switch, Rocker, Power, SPDT

ON-OFF-ON (S100) 4360.0006 262095 1 3

25 Power Supply PCB Assembly 9000.0437.03 262082 1 2

26 Display PCB Assembly, Dual 9000.0448.02 262088 1 2

27 Nut, 4-40, Hex, Kep, STZ 5222.0001 262116 3 4

Figure 2. Model 2150 Amplifier Internal Assemblies Exploded View

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