Page 1
CLASS
FM
DWG NO.
REVISIONS
REV DESCRIPTION ENG DATE
00 INITIAL RELEASE PETE CORTESE/
4/09
JIM SLOWEY
SIGNATURES REQUIRED
PRINT NAME SIGNATURE
TSG REPRESENTATIVE JIM SLOWEY
CELL LEAD MANEL THOMPSON
REPAIR SUPERVISOR
KEVIN KING
OTHER(________________)
TSG TECHNICIAN
Pete
DATE
4/09
FRAMINGHAM, MA 01701-9168
Cortese
APPLICABLE DOCUMENTS: DESCRIPTION
SERVICE MANUAL: 264563-SM
Lifestyle AV-28 Media Center
Troubleshooting Tips
SIZE
A
FSCM
32108
CLASS
FM
DWG NO.
264563-TT
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Page 2
Troubleshooting Tips
Lifestyle AV-28 Media Center
Refer to the Lifestyle AV-28 Media Center service manual, reference number 264563-SM for
schematics, PCB layouts and parts lists located on service web site.
Preventative Repair Measures
Note: Perform the following on all units returned for repair.
Product Check Action
AV28 Media Center C839 on main pcb On all units with a date code before 2200 that come
in for repair, inspect the orientation of C839 located
on the main PCB. The negative (marked) lead of the
capacitor should face toward J102 and away from
Y700. If it doesn't, remove surface mount electrolytic
capacitor C839 and install a new part (part number
256772-331A) in the direction indicated. Refer to
service bulletin 264563-B3.
AV28 Media Center J104 on tuner pcb Check for solder fractures.
AV28 Media Center Software revision Update to latest revision
AV28 Media Center CD/DVD power cable Replace on all units. Part # 304996-265. Refer to
service bulletin 271000-B4.
AV28 Media Center DVD drive part number.
Refer to service bulletin
264563-B5.
USA units built between 6/3/02 and 9/12/02 should
be checked for the presence of DVD drive part
number 266439-001 (DOM range 2190 - 2255). If a
DVD drive part number 266439-001 is found in an
AV28 media center, the drive must be replaced.
Troubleshooting Tips
Product Symptom Check Action
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
No Power Solder fracture on
J104 on tuner pcb
No Power FB1 on tuner pcb,
refer to service
bulletin 264563-B2.
No Power Check for 12V, 5V
and 3.3V at switching
power supply IC’s
U302 (tuner pcb),
U802 and U803
(main pcb).
No Power C301 and C310 on
tuner pcb
Unit has power,
but will not boot
up
CD/DVD drive Occasionally a software issue with the
Repair fractured solder joint.
If the resistance measurement is greater
than 1.00 ohm or there is any sign of
physical damage to the part, replace FB1
part number 256116-181.
Check the power supply for the 12V, 5V, and
3.3V at switching power supply IC's U802,
U803 and U302 pins 2 and 3. If any of the
voltages are not present first check to see
that the input voltage 33VDC is present at
pins 8 and 9. If the input voltage is there
replace the corresponding IC with part #
193486-001.
Check for solder fractures.
CD/DVD drive will cause the unit not to boot
up. Attempt to power the unit on with a test
drive, replace if defective.
Framingham, MA 01701-9168
SIZE
A
FSCM
32108
CLASS
FM
DWG NO.
264563-TT
SHEET
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Page 3
Troubleshooting Tips, continued
Product Symptom Check Action
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
AV28 Media
Center
No Display Q101 Check for shorted transistor Q101 on main
pcb. Part # 260354-001.
No dialogue
from left and
right channels
when in 5
speaker mode.
Unit has power,
but will not boot
up
No audio, no
remote
response
No Video Check for 8Vdc at
No audio from
Zone 1.
No audio from
Zone 1.
Flash IC U2 on main
pcb
Flash IC U2 on main
pcb,
Check for 10V at
U302 pin2 on tuner
pcb.
VR1 pin 4 on main
pcb
Check Zone 1
protocol setting on
display menu.
R342, R341, R340
and T301 on main
pcb.
If resetting the console and the bass module
does not correct this issue, replace flash IC
U2. Part # 307513.
If all power supply voltages are present and
a test CD/DVD drive does not work, flash IC
U2 may be defective. Replace IC part #
307513 if defective.
If the +10V is not present U201 on main pcb
may be internally shorted to ground through
pin 3. Lift the pin to see if the 10V comes
back. If U201 is not shorted, the following
components on the main board also use the
10V supply: U204, U205, U305, U405 and
U504.
If the 8V supply is missing, check for shorted
cap C627 on bottom side of main pcb.
If Zone 1 protocol is set to legacy, there will
be no audio from Zone 1.
Using an oscilloscope, check for a SPDIF
signal at pins 1 and 2 of din connector J301.
If the signal is not present check U306 pin
26. If the signal is coming out of U306 check
the following components for open: R342,
R341, R340 and T301.
AV28 Media
Center
Framingham, MA 01701-9168
SIZE
A
FSCM
32108
CLASS
FM
9-Pin Din, Pin Location
To measure T301, check for continuity
between pins 1 and 4, and pins 5 and 8.
DWG NO.
264563-TT
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