Bose | COMPANION 20 | Companion 20 Service Manual

Companion® 20
Multimedia Speaker System
Bose® Triport® OE Headphones
©2011 Bose Corporation
Service Manual
Reference Number 329509-SM Rev. 02
Electronic Copy Only
CONTENTS
Warranty ............................................................................................................................................. 3
Safety Information ............................................................................................................................. 3
Product Description ......................................................................................................................... 3
Date of Manufacture Information .................................................................................................... 3
Serviceability ..................................................................................................................................... 3
Serial Number Information ............................................................................................................... 3
Specifications .................................................................................................................................... 4
Packaging Part List, Companion® 20 (see Figure 1) ..................................................................... 5
Figure 1. Companion 20 Packaged System ........................................................................................5
I/O Label Replacement ..................................................................................................................... 6
Listening Test Procedure ............................................................................................................ 7-8
Service Manual Revision History ................................................................................................... 9
CAUTION: The Companion 20® multimedia speakers system contains no user-serviceable
parts. To prevent warranty infractions, refer servicing to factory service.
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.
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 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. Refer to the
next higher assembly for a replacement part.
5. The part number listed is an assembly part number. The individual parts of the assembly might not
be available separately.
2
WARRANTY
The Companion® 20 multimedia speaker system is covered by a 1-year transferrable, limited
warranty.
SAFETY INFORMATION
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.
Product Description
The Compainion 20 is a two-piece computer speaker system.
-
Acoustic performance that meets or exceeds Wave Music System
An elegant industrial design, form factor, and controls
An industrial design that evolves the Companion family line
Two 3.5 mm inputs and one headphone jack
Includes a control pod similar to Companion 3 and 5
Serviceability
The system is not serviceable, the rear enclosure is attached to the front panel and it is not
possible to repair to board or component level. Left and right speakers, control pod, speaker
grille, power supply and audio cable are available as service parts (see page 5).
Serial Number and Date of Manufacture Information
The date of manufacture (DOM) and the product code are encoded within the serial number
located on the product label.
Serial Number Example 055102Z10630052BE
The first 6 characters identify the product code - 055102
Characters 8 to 11 identify the DOM - 1063
1063 = the 63rd day of 2011
3
SPECIFICATIONS
Mechanical
Dimensions:
Individual Speaker:
8.6“ H x 3.5” W x 4.4” D
(22 x 9 x 15 cm)
Weight:
One speaker:
2.5 lbs (1.1 kg)
Control Pod:
0.5 lbs (.2 kg)
Power Pack Rating:
AC Input:
AC Input Freq:
AC Input Current:
100 VAC to 240VAC
50Hz to 60Hz
1.5A (rms) max. for 115VAC
.8A (rms) max. for 230VAC
Speaker Inputs:
Input Power:
18V, 2.0A
Input Signal:
2.25V Maximum input
Electrical
Driver Complement:
Two 2.75 inch (70mm) high
excursion, wide-range
transducers
4
PACKAGING PART LIST
Companion® 20
Item
1
2
3
4
5
6
7
8
9
10
-
Description
PC SPEAKER ASSY, LEFT
PC SPEAKER ASSY, RIGHT
GRILLE ASSY (includes logo and tape)
CONTROL POD
POWER SUPPLY
Part Number
346248-002S
346248-001S
346310-001S
346309-001S
330733-0020
INPUT CABLE
LINE CORD, US
LINE CORD, EU
LINE CORD, UK
LINE CORD, JP
LINE CORD, AP
CARTON
PACKAGING TRAY, TOP
PACKAGING TRAY, BOTTOM
I/O LABEL
BAG, SPEAKER ASSEMBLY
COMMITMENT LETTER
OWNERS GUIDE, US
OWNERS GUIDE, EU
OWNERS GUIDE, AP
346312-001S
279101-1310
280135-1310
280138-1310
280136-1310
284243-1310
342934-0010
345628-0010
345629-0010
343766-0010
347853-0010
325526-0010
344837-0010
344838-0010
344839-0010
2
Notes
3,
3,
4
5
1
7
3
6
9
10
8
Figure 1. Packaged System
5
I/O LABEL REPLACEMENT
Companion® 20 I/O label replacement
1.3 Once the right top corner is lifted, continue
lifting by hand to remove it fully away from the
assembly.
Equipment Required
-Hot Air Gun
-Small Flat blade screw driver or dental pick
-New I/O Label, P/N 343766-0010
1. I/O label removal
1.1 Using a hot air gun, heat the I/O label
surface for 3 to 5 seconds.
1.4 Remove all glue left on the assembly by
hand, then clean using a duster cloth.
1.2 Use a small flat head screwdriver or dental
pick to lift the top right corner of the label.
2. I/O label replacement
2.1 Use Bose part number 343766-0010 as the
replacement I/O label.
2.2 Place the new label one the assembly
starting from the bottom.
2.3 Once the label is in place, apply an even
amount of pressure for 4 to 6 seconds across
all areas of the label.
6
LISTENING TEST PROCEDURE
Test Equipment required:
Audio Signal Generator
Test Set up
Connect speaker cable from the left speaker to the right speaker.
Connect an audio signal to the audio input cable and connect the cable to the input jack on the left
speaker.
Connect the power adapter to the power input on the right speaker.
NOTE: For all listening tests (air leak and sweep test), listening should be done at a distance of
2 feet (0.6 meters) in a quiet environment. Listening distance must be decreased to 1 foot (0.3
meters) in a noisy environment. All testing is to be performed on each individual speaker of the
pair, with the volume control knob set to the maximum volume setting and both A and B inputs
connected. There should be no audible distortion during any test.
1. Air Leak Test
1.1 Apply a 50 mVrms, 50 Hz audio signal to the input of the right speaker.
1.2 Set the volume control pod to the maximum volume setting.
1.3 Listen carefully for air leaks from the cabinet seams around the transducer and at the input
terminals.
1.4 Replace system if air leaks can be heard.
2. Frequency Sweep test
2.1 Apply a 50 mVrms, 35 Hz audio signal to the input.
2.2 Set the volume knob to the maximum volume setting.
2.3 Listen carefully as you sweep the bass module from 35 Hz to 3 kHz, then from 3 kHz to 35 Hz.
2.4 Listen carefully for buzzes, rattles, or other extraneous noises from the speaker cabinet. A
slight whooshing sound from the port (at approximately 70 Hz) is acceptable.
2.5 Replace system if buzzes or rattles can be heard from the cabinet.
7
Test Procedures
3. Control Pod Functional Test
3.1 With the system completely set up, turn on the system by tapping on the control pod. Confirm
system is on by looking for the white LED.
3.2 Set the volume knob on the control pod to maximum (fully clockwise).
3.3 Touch the center of the control pod . Verify that the LED turns on and off with each touch.
3.4 Lower the volume to minimum (fully counter clockwise) on the control pod and connect an
auido source to the “Audio Input” jack.
3.5 Adjust the volume control to a comfortable listening level and verify that the sound is muted and
un-muted when the LED is off and that there is no audible pop when switching from mute to unmute.
3.6 Rotate the control pod ring, verify that the volume increases and decreases and that the ring
moves smoothly.
3.7 Replace any control pod that is defective.
4. Control Pod AUX and Headphone Test
4.1 With the system off (no LED), connect an audio source to the AUX connector on the control
pod.
4.2 Turn on the system and set the volume to a cmfortable listening level.
4.3 Confirm audio can be heard.
4.4 Connect a headset to the headphone input on the control pod.
4.5 Confirm audio from the speakers are muted when the headphones are connected to the
control pod.
4.6 Confirm audio can be heard from the headphones.
8
SERVICE MANUAL REVISION HISTORY
Date
7/11/11
Revision
Level
00
Description of Change
Document released at revision 00
Change Driven
By
Service Manual
release
Pages
Affected
All
12/02/11 01
Test procedure referred to bass
module and satellites. Updated
procedure with corrected
information.
Errors in
original manual
8
1/31/13
Input power rating corrected.
Error in original
manual
4
02
9
SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE
Bose Corporation
The Mountain
Framingham Massachusetts USA 01701
P/N: 329509-SM Rev. 02 7/2011 (H)
http://serviceops.bose.com
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