Bose Lifestyle 5 Owners Manual

							20
DISASSEMBLY/ ASSEMBLY PROCEDURES
5.5 Slide the violet (14) and gray (15)
grommets away from the slots in each
corner of the mechanism.
5.6 Remove the two screws (13) that
secure the cover (12) to the mechanism.
Unsnap the cover from the mechanism.
6. CD Mechanism Replacement
6.1 Snap the cover (12) into position. Align
the screw holes and replace the two screws
(13) that secure the cover to the mecha-
nism (11).
6.2 Slide the violet (14) and gray (15)
grommets into their respective slots on
each corner of the mechanism. See Figure
3 for their proper locations.
6.3 Connect the 6 pin connector to the PCB
that is connected to the motors and the 5
pin (with black cable) and 8 pin
connectors to the APC PCB.
6.4 Remove the solder from the shorted
points shown in Figure  4.
Note: Make sure that four nylon washers
(23) are mounted on the posts before
installing the mechanism (later models
only).
Note: The CD mechanism wires must be
routed correctly (see Figure 7) for proper
CD operation. A sign of improper routing is
a clicking noise when playing tracks at the
outermost edge of the CD. Perform the CD
Final Verification tests on page 31 to
ensure proper operation.
6.5 Place the mechanism on the four metal
posts located in the base (19). Position as
shown in Figure 3.
6.6 Replace the door/right cover assembly
(Procedure 4) and left cover assembly
(Procedure 2).
 7. Digital PCB Removal
Note: Refer to Figures 3 and 7 for Proce-
dures 7 and 8.7.1 Remove the left cover assembly (Pro-
cedure 1) and the right cover/door assem-
bly (Procedure 3).
7.2 Lift up the CD mechanism (11) and
move it aside. Keep the mechanism con-
nected to the PCB unless removal is
required. See Procedure 5 for removal
procedure.
7.3 There are four black plastic tabs that
hold the PCB (10) in position. See Figure 3.
Flex them carefully outward and pull the
PCB up and out.
7.4 Remove any connections required to
troubleshoot the PCB.
8. Digital PCB Replacement
8.1 Replace any connections that were
disconnected during troubleshooting.
8.2 Slide the PCB (10) into position. There
are notches in the PCB which mate with
notches in the base (19). See Figure 7.
8.3 Snap the PCB carefully down under the
four locking tabs.
8.4 Push the CD mechanism (11) down
onto the four metal posts.
8.5 Replace the right cover/door assembly
(Procedure 4) and the left cover assembly
(Procedure 2).
9. Audio PCB Removal
Note: Refer to Figures 3 and 7 for Proce-
dures 9 and 10.
9.1 Remove the left cover assembly (Pro-
cedure 1), the door/right cover assembly
(Procedure 3), and the Digital PCB (Proce-
dure 7).
9.2 There are four locking tabs (three on
the PCB edges and one in the middle of the
PCB) that secure the PCB (10) to the base
(19). Flex the tabs carefully away from the
PCB and disengage the PCB. 
						

							21
DISASSEMBLY/ASSEMBLY PROCEDURES
9.3 Slide the PCB clear of the connector
panel, and pull it away from the base.
9.4 Remove any connections required to
troubleshoot the PCB.
10. Audio PCB Replacement
Note: Make sure that the connections to
the Headphone Jack PCB (10) are routed
through the guiding notch on the side of the
console (see Figure 7).
10.1 Restore any connections that were
disconnected during troubleshooting.
10.2 Slide the PCBs connectors through
the holes in the rear of the base (19).
10.3 Snap the PCB (10) carefully down
under the four locking tabs. Make sure that
the CD mechanism connections are routed
properly. See Figure 7 and procedure 6
note.
10.4 Replace the Digital PCB (Procedure
8), the door/right cover assembly (Proce-
dure 4), and the left cover assembly (Pro-
cedure 2).
11. Headphone Jack PCB Removal
Note: Refer to Figures 3 and 7 for Proce-
dures 11 and 12.
11.1 Remove the left cover assembly
(Procedure 1) and door/right cover assem-
bly (Procedure 3).
11.2 There are two black plastic snaps that
secure the PCB (10). Flex the snaps
outward and carefully pull the PCB away
from the unit.12. Headphone Jack PCB Replacement
12.1 Snap the PCB (10) into place by
engaging the two locking tabs.
Note: Make sure that the connector wires
are routed through the guiding notch on the
side of the base (19).
12.2 Replace the door/right cover assembly
(Procedure 4) and the left cover assembly
(Procedure 2). 
						

							22 Figure 5. Back Panel with Tab Locations
Hooks onto front
of console.
Figure 6. Right Cover Assembly (side view)
Figure 7. Base Assembly (top view with covers removed)
Tab that fits into cutouts
on back panel 
						

							23
RC5 DISASSEMBLY/ASSEMBLY PROCEDURES
1. Enclosure Disassembly
1.1 Slide off the battery compartment door
(5) and remove the batteries.
1.2 While holding the top cover (4) with one
hand, place your fingers from your other
hand in the battery compartment and grasp
the lower part of the bottom cover (3) with
your fingers.
1.3 With your finger tips in the battery
compartment, first pull parallel to the unit
and then pull perpendicular.
1.4 With the catches released at the bottom,
work your fingers up the sides to release
the rest of the catches.
2. Enclosure Assembly
2.1 Lower the bottom cover (3) onto the top
cover (4) so that the bottom covers lip fits
over the top cover.
Figure 8. Remote Control Assembly Exploded View
5
10
6
7
9
8
1
2
3
4
2.2 Press the top cover and the bottom
cover together until they snap into place.
3. PCB Removal
3.1 Lift the PCB (1) straight up. The springs
will come up with the PCB.
4. PCB Replacement
4.1 Lower the PCB (1) into the top cover (4)
so that the springs are in the battery com-
partment.
5. Pad Removal
5.1 The pad (2) is not secured. Grasp a
corner of the pad and lift it out.
6. Pad Replacement
6.1 Lower the pad (2) into the top cover (4)
so that the buttons line up with the holes in
the top cover. 
						

							24
TEST PROCEDURES
GENERAL TEST SETUP
Load the outputs as follows:
Headphone output-33W, 1% load.
Audio (A, B, Fixed) outputs-10kW load.
 Note: The remote control or console
buttons can be used to select sources in
these procedures.
1. AUX Gain Test
1.1 Select AUX.
1.2 Apply a 500mVrms, 1kHz signal to the
left (right) AUX input. Adjust the volume to
maximum. Reference a dB meter to the
applied signal.
1.3 Ground the TAPE, VIDEO  and the right
AUX inputs.
1.4 Measure the outputs according to the
following table.
1.5 Repeat this test for the right channel.
Note: This test is the same for the VIDEO
input. Apply a 500mVrms, 1kHz signal to
the left (right) VIDEO input and repeat this
test.
2. AUX Separation Test
2.1 Select AUX.
2.2 Apply a 500mVrms, 1kHz signal to the
left (right) AUX input. Adjust the volume to
maximum. Reference a dB meter to the
applied signal.
2.3 Ground the TAPE, VIDEO, and right
AUX inputs.2.4 Measure the outputs according to the
following table.
2.5 Repeat this test for the right channel.
Note: This test is the same for the VIDEO
input. Apply a 500mVrms, 1kHz signal to
the left (right) VIDEO input and repeat this
test.
3. TAPE Gain Test
3.1  Select TAPE.
3.2 Apply a 500mVrms, 1kHz signal to the
left (right) TAPE input. Adjust the volume to
maximum. Reference a dB meter to the
applied signal.
3.3 Ground the AUX, VIDEO and the right
TAPE inputs.
3.4 Measure the FIXED level output. It
should be 8.9 to 9.9dB.
3.5 Repeat this test for the right channel.
4. Volume Control Mute
4.1 Select the AUX input.
4.2 Apply a 500mVrms, 1kHz signal to the
left (right) AUX input.
4.3 Set the volume to minimum at the
speaker A output.
4.4 Measure the gain at the A output
(relative to maximum volume). It should be
³ -75dB.
OutputSeparation (dB)
Speaker A (L,R)³50
Speaker B (L,R)³50
Tape (L,R)³50
Fixed (L,R)³50
Headphone (L,R)³50
OutputMin  
(dB)Max
(dB)
Speaker A (L,R) 4.2 5.4
Speaker B (L,R) 4.2 5.4
Tape (L,R) 3.3 4.5
Fixed (L,R) 4.2 5.4
Headphone (L,R) 5.4 7.4 
						

							25
TEST PROCEDURES
5. Headphone Mute
5.1 Select the AUX input.
5.2 Apply a 500mVrms, 1kHz signal to the
L/R AUX input.
5.3 Insert a mini-jack into the headphone
output. The A output should mute.
FM ALIGNMENT TESTS AND
ADJUSTMENTS
Unless otherwise noted, set an RF genera-
tor to 98.1MHz, 40dBf, 1kHz, mono modu-
lation, pilot off, 100% (75kHz deviation).
1. Front End Mixer Coil Adjustment
1.1 Adjust the FM front end (TUNER) mixer
coil until a maximum DC voltage is mea-
sured at U301 pin 25. Adjust the coil until
the voltage comes within +0, -20mV of the
peak voltage.
2. FM Detector Zero Adjust and Distortion
Adjustment
2.1 Set the RF generator to 65dBf.
2.2 Adjust  T305 until the voltage reads
0Vdc ± 110mVdc across C317+ (AFC test
point) and C322+ (VREG test point).
2.3 Adjust T304 for minimum distortion. The
distortion should be < 0.4%.
2.4 Repeat this procedure until optimal
results are obtained.
3. FM Stop Level Adjustment
3.1 Set the RF generator to 31dBf.
3.2 Rotate R334 counterclockwise until the
voltage at U301 pin 21 drops below 2.5Vdc.
Then rotate R334 clockwise until the
voltage goes above 2.5Vdc.
Note: The correct adjustment is at the point
just after the voltage switches high.3.3 Adjust the generators output to 35dBf.
Verify that U301 pin 21 is < 2.5Vdc.
4. Stereo Separation
4.1 Set the RF generator to 65 dBf, pilot on,
left modulation, 1kHz, 100% (75kHz devia-
tion).
4.2 Reference a dB meter to left FIXED
output.
4.3 Measure the right FIXED output. It
should be £ -25dB.
Note:  If the unit fails this test, perform the
following procedure.
1. Change R354 to a 560W, 5%, 1/10.
2. Remove W302.
3. Add R355 (a 1kW, 10%, 1/2 W potenti-
ometer). Adjust R355 for maximum separa-
tion. This option is listed on note 9 of the
schematic.
5. FM Sensitivity
5.1 Set the RF generator to 42dBf, L= -R
modulation, pilot on.
5.2 Reference a dB meter to the left FIXED
output.
5.3 Measure the noise (with modulation off
and pilot on) at the right FIXED output. The
SNR should be > 50dB for the 120V ver-
sion and > 45dB for the 220V version.
Note: If the unit fails this test, the FM front
end should be replaced. 
						

							26
AM ALIGNMENT PROCEDURES
Test setup: Connect the generator to a
standard radiating loop. Unless otherwise
noted, set an RF generator to 70dBu field
strength, 400Hz, 30% modulation.
See Figure 9.
Figure 9. AM Test Setup
The equivalent field intensity is 26dB less
than the generator output level or 1/20
th of
the output voltage.
1. AM  Sensitivity Alignment
1.1 Set the RF generator so that the field
strength at the units antenna is 70dBm
(70dBm V/M).
STANDARD
SIGNAL
GENERATOR
STANDARD
SIGNAL
GENERATOR
60cmTEST
LOOP
(PLAN VIEW)
(SIDE VIEW)
Figure 10. Audio PCB Test Section
TEST PROCEDURES
1.2 Reference a dB meter to the Fixed level
output.
1.3 Shut off the modulation and measure
the noise. The SNR should be > 30dB.
2. AM Stop Level Adjustment
2.1 Set the RF generator so that the field
strength at the units antenna is 59dBm
(59dBm V/M).
2.2 Rotate R339 counterclockwise until the
voltage measured at U301 pin 21 goes
below 2.5Vdc. Then, rotate R339 clockwise
until the voltage goes above 2.5Vdc.
Note: The correct adjustment is at the point
just after the voltage switches high.
2.3 Adjust the field strength to 64 dBm
(64 dBm V/M). Verify that the voltage at
U301 pin 21 is < 2.5Vdc. 
						

							27
button until TO lights up). The meter should
read approximately 90mVdc.
2.4 Simulate a closed CD door by placing
an object between S501s two black posts
(the CD door latch can be used). Select CD
(S413).
2.5 After the focusing operation is com-
pleted, press ERASE (S403). The meter
should change from its previous reading in
step 2.3 (it will drop). If not, remove power
and repeat the test.
2.6 Adjust R511 until the meter reads
between -7 to 17mVdc.
3. E/F Balance (E/F)
3.1 Advance the alignment fixture (ADV
button) to the E/F setting and set the
voltmeter to read DC voltage.
3.2 Simulate a closed CD door by placing
an object between S501s two black posts
(the CD door latch can be used). Load the
YEDS-18 test disc, select CD (S413), and
play track 2.
3.3 Press STORE (S411). This puts the unit
in the E/F balance mode. The time display
will stop.
3.4 Adjust R506 until the meter reads
between - 10 to + 50mVdc.
4. Tracking Gain (TG)
4.1 Shut the unit off.
4.2 Advance the fixture to the TG setting
and set the voltmeter to read AC voltage.
4.3 Simulate a closed CD door by placing
an object between S501s two black posts
(the CD door latch can be used). Load the
YEDS-18 test disc, select CD (S413), and
play track 2.
4.4 Adjust R510 until the meter reads
between 440 to 500mVrms.CD ALIGNMENT PROCEDURES
(WITH FIXTURE)
Note: Some of these procedures require
the use of a CD alignment fixture (P/N
176318). Alternate procedures that do not
require a fixture begin on page 30. Refer to
Figure 11, CD Alignment Fixture Test
Setup. The fixture is required unless other-
wise specified. Refer to Figure 13 for
adjustment locations.
Test Equipment Needed
Digital Voltmeter
Frequency Counter
Sony Disc YEDS-18
Bose
¨ CD Alignment Fixture (176318)
1. PLL Free Run Frequency (VCO)
Note: This test does not require a test disk
or the alignment fixture.
1.1 Connect the frequency counter to PCK
and ground.
1.2 Simulate a closed CD door by placing
an object between S501s two black posts
(the CD door latch can be used). Select CD
(S413).
1.3 Adjust R558 until the frequency counter
reads 4.320MHz ± 20kHz. (If the adjust-
ment is not done within 4 seconds, then CD
must be selected again).
2. Tracking Offset (TO)
Note: Remove any previously loaded test
disc. This test will not work with a disc
loaded.
2.1 Connect the cable from the test fixture
to connector P504 on the unit.
2.2 Connect a DC voltmeter to the positive
(+) and negative (-) terminals on the test
fixture.
2.3 Select TO on the fixture (press the ADV
CD TEST PROCEDURES 
						

							28
Figure 11. CD Alignment Fixture and Test Setup
5. Focus Gain (FG)
5.1 Advance the fixture to FG and set the
voltmeter to read AC voltage.
5.2 Simulate a closed CD door by placing
an object between S501s two black posts
(the CD door latch can be used). Load the
test disc, select CD (S413), and play track
2.
5.3 Adjust R527 until the meter reads
between 380 to 420mVrms.
6. Tracking Offset Readjustment
6.1 Refer to procedure 2 and readjust if
necessary.
CD TEST PROCEDURES
ADV.TO E/F
TG FG
P504 Front Panel
Back Panel12 VAC
 IN To
CD5
To
DVM
+-
2 cable connects to 
“12 VAC ~ IN on CD5 
back panel. Both ends
of the cable are terminated
exactly the same way as 
the power pack.This RJ-45
connection only fits
one way. The other 
end plugs directly into
P504 on the Digital PCB.
Power 
Pack 
						

							29 Figure 12. Passive Filter Network and Test Setup