Test Procedures ....................................................................................................................... 45-48
IC Diagrams ............................................................................................................................... 49-50
Service Manual Revision History .................................................................................................51
2
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 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 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 Appliances" and Underwriters Laboratories (UL)
6500 / IEC 60056 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 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 WITHIN THE
LIMITS 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) Measure
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 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.
CAUTION: The Bose® L1® Compact 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 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.
W arranty
The Bose L1 Compact Power Stand is covered by a limited 2-year transferable warranty.
The L1 Compact Array and the Power Stand woofer are covered by a 5-year limited warranty.
3
Specifications
Mechanical
PartDimensionsWeight
L1 Compact Power Stand with16.5” H x 13.25” W x 16.75” D24.6 lbs (11.2 kg)
Loudpseaker Array(41.8 cm x 33.9 cm x 42.6 cm)
L1 Compact Loudpseaker Array 16” H x 2.75” W x 2.75” D3.0 lbs (1.35 kg)
(40.8 cm x 7 cm x 7.1 cm)
L1 Compact Extensions (2)32.5” H x 2.75” W x 2.75” D2.3 lbs (1.05 kg) each
Collapsed Position16.5” H x 13.25” W x 16.75” D24.6 lbs (11.2 kg)
(assembled)(41.8 cm x 33.9 cm x 42.6 cm)
Extended Position78.5” H x 13.25” W x 16.75” D29.2 lbs (13.3 kg)
(assembled)(199.5 cm x 33.9 cm x 42.6 cm)
Shipping CartonsWeight
L1 Compact System (no extensions)30.4 lbs (13.8 kg)
L1 Compact Extensions7.5 lbs (3.4 kg)
Electrical
AC Power Rating
100 - 240 VAC ~ 50/60 Hz, 200W max
Peak Inrush Current
230V: 18.2 Amps
120V: 9.7 Amps
4
Electrostatic Discharge Sensitive (ESDS)
Description Bose®
Vendor Part
Description Bose® Part Number
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.
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. Refer
to the next higher assembly for a replacement part.
L1 Compact Power Stand, 120V (US) 318882-1100
L1 Compact Power Stand, 220V (China) 318882-2100
L1 Compact Power Stand, 100V (Japan) 318882-3100
L1 Compact Power Stand, 230V (Euro) 318882-4100
L1 Compact Power Stand, 240V (UK) 318882-5100
5
Product Description
Loudspeaker
Array
Whether you are a musician amplifying your instruments, a mobile DJ entertaining an audience,
or the host of your own special event, the Bose® L1® Compact Portable Line Array System will
provide quality sound for audiences of approximately 100 people.
Features Include
• Carry it in one trip – The entire system is light enough to be carried in a single trip.
• Set it up in one minute – The interlocking components of the L1 Compact system allow system
setup in less than a minute. There are no external speaker wires required. An integrated bass
enclosure with an intuitive user interface eliminates the need for separate components.
• Fill the room with one loudspeaker – Whether you’re performing live or playing back prerecorded music, whether you’re performing in a coffeehouse or a 100-seat room, Bose Spatial
Dispersion™ loudspeaker technology provides nearly 180º of tonally balanced sound coverage
so there are no dead spots.
• PA and monitor combined – Audience members enjoy a more consistent and intimate listening
experience because the system sets up behind the performer and serves as both the monitor for
the stage and amplification system for the audience. The performer alone controls the sound.
• Versatility – In addition to musical performances, the L1 Compact provides quality sound for a
wide variety of general-purpose uses including presentations, celebrations, speeches, and
music playback for about 100 people.
• Integrated ToneMatch® signal processing – Provides a high level of tone customization on your
microphone or acoustic guitar to provide a listening experience that most musicians only achieve
using a recording studio.
• Two setup options – The L1 Compact system can be used in either the collapsed position for
smaller audiences or extended positions for larger audiences.
The L1 Compact Portable Line Array
System is shipped in two cartons.
The L1 Compact system consists of:
• L1 Compact Power Stand
• L1 Compact Loudspeaker Array
• L1 Compact Extensions
The L1 Compact system comes with
a slipcover for the Power Stand and
a padded carry bag for the L1 Compact Extensions.
Power stand cartonExtensions carton
L1®Compact Power Stand
with Loudspeaker Array
AC power cord
Power Stand slipcover
L1®Compact Extensions
Extensions carry bag
6
Product Description
Smaller audiences
• Intimate acoustic performances
• Music playback
• Presentations
• Speeches
Larger audiences
•Musical pe
rformances
–
auditorium/coeehouse
• DJ events
• Announcements
–
larger spaces
Collapsed position
Loudspeaker
Power
Extended position
Power Stand
Array
Extension
Extension
Stand
Ta b l e t o p
Array
Loudspeaker
2
3
System configurations
You can set up the L1
®
Compact system in two unique positions. The examples below will help
you quickly identify the position that can
work best for you.
The L1 Compact Extensions are not required when using the L1 Compact Portable
Line Array System in the collapsed position.
They are included for situations where you
need to elevate the Loudspeaker Array to
project sound to larger audiences.
Extending the Loudspeaker Array
Once you have set the system in place:
1.Slide the Loudspeaker Array up and
out of the Power Stand and temporarily lay it aside.
Note: The two L1 Compact Extensions are identical to each other.
1
2
2.Align the plug on the bottom of the
Extension with the socket on the
Power Stand, then slide the extension
into the power stand.
3.Align the remaining Extension and
push it firmly in place.
4.Align the Loudspeaker Array and
push it firmly in place.
Connecting power to the system
1.Make sure the power switch is off
(down position).
2.Plug one end of the power cord into
the connector on the power stand.
3.Plug the other end into a live electrical receptacle.
4.Before turning the system on,
connect your sound sources.
4
3
1
7
Product Description
Channel 1
Channel 2
1
2
3
4
5
6
7
8
9
10
11
12
Connections and controls
The power stand control panel provides all the necessary connectors, controls, and indicators
for operation.
(Microphone input)
The channel 1 input is for use only with a
microphone. Integrated ToneMatch
®
signal
processing provides a high level of tone
customization to provide a listening experience
that most musicians can only achieve using a
recording studio.
1. S igna l/Clip indic ator – Displays the input
signal status in color.
• Green: Input signal present
• Red: Input signal clipping
2. V olume contr ol – Adjusts the volume of your
microphone.
3. Treble control – Adjusts the amount of treble
on your microphone.
4. B ass c ontr ol – Adjusts the amount bass on
your microphone.
5. Microphone input – Analog input for
connecting a balanced XLR microphone cable. A
ToneMatch microphone preset is built in.
(Utilit y cha nne l – multip le input)
6. S igna l/Clip indicator – Displays the input
signal status in color.
• Green: Input signal present
• Red: Input signal clipping
7.V olume contr ol – Adjusts the overall volume of
all input sources connected to Channel 2.
8. 1/8-inch stereo input – Stereo analog input
for connecting audio sources such as portable
mp3 players, satellite radio, laptop computers,
video projectors, and smart boards. Left and right
inputs are summed by the power stand.
9. RCA stereo input – Analog input for
connecting audio sources such as DVD players,
VCR players, video game consoles, DJ mixers,
Keyboards and other instruments. For best
results, connect both the left and right signals.
Left and right inputs are summed by the power
stand.
10. 1/4-inch input – Balanced analog input for
connecting guitars and other instruments.
Accepts either 1/4-inch TRS balanced or TS
unbalanced cables.
11. ToneMatch switch – When connecting an
acoustic guitar to the 1/4-inch input, move the
switch to the position to enable a ToneMatch
preset. When connecting anything other than an
acoustic guitar to the 1/4-inch input, move the
switch down to the Line Level position.
12. Power LED – Indicates power status.
Blue: Power on
8
Packaging Part List
L1 Compact Power Stand (includes Array) (see Figure 1)