Bang & Olufsen Beoplay A9 3rd Generation User manual

BeoPlay A9 3rd generation
Type 3034 – 3038
Service Manual - version 1.0
English
70.1
70.1
90.8
41.1 21.3

CONTENTS
Survey of modules ................................................................... 1.1
How to service ......................................................................... 1.2
Service tips ............................................................................... 2.1
Fault ow chart ........................................................................ 2.5
Final check after repair ............................................................. 3.1
Replacement of modules .......................................................... 4.1
Specication guidelines for service use ..................................... 5.1
Block diagram .......................................................................... 6.1
Wiring diagram ........................................................................ 6.3
Available parts ......................................................................... 7.1
Change log:
Ver. 1.0 ................................................................. Original release

Survey of modules 1.1
BeoPlay A9 3rd generation
PCB02.1 Connector - Ethernet
PCB02.2 Connector - Line In
PCB04 Power Supply
PCB48.1 NTC - Woofer
PCB48.2 NTC - Midrange Right
PCB48.3 NTC - Midrange Left
PCB48.4 NTC - Full Range Left
PCB48.5 NTC - Full Range Right
PCB55 Touch Board
PCB57 Button Board
PCB82.1 Wireless Antenna
PCB82.2 Wireless - Bluetooth Antenna
999Module Chassis incl PCB01, ASE and PCB35,
 Amplier-DSP
04
02.2
57
01
35
82.2
82.1
48.1
02.1
999
55
48.348.2
48.448.5

1.2 How to service
How to service
Strategy
For informations about how to service and list of recommended assisting tools for
service, refer to the specic Service Prole for this product on BeoWise.
Preparations before service
Fault explanation and demonstration
Before troubleshooting is initiated, let the customer demonstrate the fault, if
possible.
Final check after repair
The nal check after repair describes the activities that are needed to ensure the
product will be returned in perfect condition to the customer.
Please refer to ‘Final check after repair’ section on page 3.2
FAQ
For more information about operating the product, see the Frequently Asked
Questions (FAQ) section on www.bang-olufsen.com.

How to service 1.3
Warnings when handling
Static electricity
Static electricity may damage the product.
Static-protectiveeldservicekit
A static-protective eld service kit must always be used when the product is
disassembled or modules are being handled, since the internal electronics are very
sensitive to static electricity.
Follow the instructions in the Service Manual and use the ESD-mat for both old
and new modules.
When mains voltage on the product is required, remove the connection between
the product and the ESD-mat. This is important to avoid getting injured by mains
voltage.
STATIC ELECTRICITY
MAY DESTROY THE
PRODUCT
ESD
ESD-Mat
Waste of Electrical and Electronic Equipment (WEEE)
Electrical and electronic equipment, parts and batteries marked with this symbol
must not be disposed of with normal household wastage; all electrical and
electronic equipment, parts and batteries must be collected and disposed of
separately.

1.4

Repair tips - Fault ow chart 2.1
Repair tips
LED indications ................................................................................. 2.2
Factory reset ..................................................................................... 2.4
Check for newest software ............................................................... 2.4
System info - Service counters ........................................................... 2.5
Log le ............................................................................................. 2.5
Speaker unit test ............................................................................... 2.6
NTC module test ............................................................................... 2.6
Mechanical cracking sound(s) ........................................................... 2.6
Fault ow chart
No function ...................................................................................... 2.7
No operation of touch panel
(Works when operating via Bang & Olufsen App) .............................. 2.7
No light in Product indicator or
No light in Network/Bluetooth Indicator ............................................ 2.8
No adjustment of volume ................................................................. 2.8
No sound or poor sound ................................................................... 2.9
WiFi and/or Bluetooth are not working ........................................... 2.10

2.2 Repair tips
Repair tips
LED indications
The LEDs indicates the state of the product by changing colour (white/orange/red/
blue), ashing or solid. If errors occur during operation, the product will enter an
error state and give LED indications as described in the following.
Product status
Product indicator Network/Bluetooth indicator
Network
Standby – Low (Off
mode)
Off Off
Standby – High
(Network Standby
mode)
Off See Network and BT connectivity LED
On – Powering up
(Boot up duration)
White (pulse) White (pulse)
On – Product On (for
rst 5min)
White (Solid) See Network and BT connectivity LED
On – Product On
(idle after 5min)
(White)Transition to dim Transition to dim
Entering Standby –
Low
Transition to off Transition to off
Network/Bluetooth indicator Product indicator

Fault ow chart 2.3
Network Connectivity
Product indicator Network/Bluetooth indicator
Ethernet
First 5min No change White (Solid)
idle after 5min No change Transition to dim
Wi-Fi setup/connecting
Setup (WAC Open) In progress No Change Amber (Pulse, repeat)
Reconnect In progress No Change Amber (Flash, repeat)
Wi-Fi Connection status (X>25%)
In general (for 5min) No change White (Solid)
In general (idle after 5min) No change White (Transition to dim)
Wi-Fi Connection status (Signal strength: 25
≥ X ≥ 10 %)
In general (for 5min) No change Amber (Solid)
In general (idle after 5min) No change Amber (Transition to dim)
Wi-Fi Connection status (X<10%)
In general (for 5min) No change Amber (Solid)
In general (idle after 5min) No change Amber (Transition to dim)
Wi-Fi Not congured or Wi-Fi Error
In general (for 5min) No change Blue (Solid)
In general (idle after 5min) No change Blue (Transition to dim)
BT Connectivity
Product indicator Network/Bluetooth indicator
Bluetooth parring
In progress (Only when product turn off
“Always Open”)
No change Blue (Flash, repeat)
Successfully No change Blue (Transition, 5sec)
Fail (Apply for Cancel via webpage and
manually trigger timeout)
Red (Transition, 5sec)
BLE pairing
In progress (only when Pairing is manually
triggered)
No Change Blue (Flash, repeat)
Successfully No Change Blue (Transition, 5sec)
Fail (Apply for Cancel via webpage and
manually trigger timeout)
Not required Red (Transition, 5sec)
Audio source
Product indicator Network/Bluetooth indicator
Bluetooth active source
For rst 5min No change Blue – on
Pause BT source No change Blue
Change to other source) No Change Change from Blue to Network
status
Disconnect BT No Change Change from Blue to Network
status
Idle after 5min No Change Blue – dim
Non-BT active source No Change Blue (Transition, 5sec)
Disconnect BT No change No change
Switch to BT source No change Change from Network status to
Blue

2.4 Fault ow chart
< >
< >
Other status
Product indicator Network/Bluetooth indicator
Software Updating Red (Pulse, repeat) Red (Pulse, repeat)
Product/Critical FW Error Red (Quick ash,
repeat)
Transition to off
Hardware Overheated Amber (Pulse, repeat) Not required
Factory Reset (reset afterward) Red (Transition, 5sec) Red (Transition, 5sec)
Short Press/ Single rotate/ Change track/ Slide White (Quick ash,
once)
Not required
Continuous Rotate (Stop indication when
Max/Min volume reached*) (for Volume only)
White (Quick ash,
until release)
Not required
Long Press/ Very Long Press (a ash at the X
duration after pressed to indicate nger can
be released now)
Note: light feedback needs to align with
sound prompt.
White (Quick ash,
once)
Not required
Received command from IR or App command White (Quick ash,
once)
Not required
Factory reset
Before trouble-shooting a faulty product, it may be useful to perform a factory
reset.
You can reset the Beosound A9 3rd gen. by using the Bang & Olufsen App. Open
the App, enter the ‘SETTINGS’ menu and select ‘RESET’, then conrm the reset
to factory settings.
The Beosound A9 3rd gen. can also be reset to factory settings by pressing and
hold the conguration button for 8 seconds. When the Product indicator and the
Network/Bluetooth indicator ash red once, the Beosound A9 3rd gen. will reset.
Check for newest software
Always ensure to have the newest software version installed. Software can be
updated via ServiceTool, The Internet or the Bang & Olufsen App. How to update
software, see page 3.3.

Repair tips 2.5
System info - Service counters
Usage data is logged in the product. These data can be very useful information in
troubleshooting situations. Use the ServiceTool to read out the system info and
the service counters.
Log le
If an error occurs in the product, it is recorded and saved as a log le. The log le
may be helpful in troubleshooting situations. Use the ServiceTool -> Web
interface or the Bang & Olufsen App to upload the log le.
Approach (ServiceTool)
Connect a service PC with ServiceTool to the same router as the Beosound A9 3rd
gen. is connected to.
- Run ServiceTool.
- Be sure that ServiceTool is updated to the latest version. If not, upgrade and
restart ServiceTool.
- Scroll down to BeoSound section.
- Select Beosound A9 3rd gen. and click Launch.
- Click on the PRODUCT tab (if not already shown).
- Click + next to each item to expand the menus.
- Click Connection (the information screen appears).
- Follow the procedure in ServiceTool.
I/O
Internet
ISP Router
WAN/
Internet
LAN/Ethernet
AP

2.6 Repair tips
Speaker unit test
Measure the DC resistance of the speaker unit to determine if the fault is caused
by a defective speaker unit. It is recommended to measure on the terminals on the
speaker unit. The speaker units must be disconnected from the product.
Speaker unit Nominal value Limits
Tweeter 4.9 ohm 4.4 - 5.5 ohm
Midrange 3.5 ohm 3.1 - 3.9 ohm
Full Range 3.0 ohm 2.6 - 3.4 ohm
Woofer 2.0 ohm 1.7 - 2.3 ohm
If the speaker unit is outside the limits, it is defective and must be replaced.
Under normal conditions it is not necessary to replace the gaskets on the speaker
unit, unless they have been damaged by accident.
NTC module test
Measure the resistance of the NTC module to determine if the fault is caused by a
defective speaker unit or a defective NTC module.
It is recommended to measure on the terminals on the NTC module.
The NTC module must be disconnected from the product.
The resistance of the NTC module at 22ºC (72ºF) is approximately 470k ohm.
If the NTC module is not measuring approximately 470k ohm, it is defective and
must be replaced
Mechanical cracking sound(s)
We have heard cracking sounds from the cabinet of some products. Both when
the product is in use and also in standby after use. These mechanical cracking
sounds are caused by temperature deviations, and they can occur very periodically.
Work-around:
Switch on the product and when it is heated up, loosen all screws on the front of
the product. When all screws are loose, retighten like on a car wheel by always
crossing to the opposite side until all screws are tightened. See page 4.3 for
instructions on the order in which the screws must be tightened.

Fault ow chart 2.7
No
Yes
Fault ow chart
Fault symptom:
No function
Possible causes:
Defective PCB04, Power Supply
Defective 999module, chassis
Conrm 5V on
PCB04 CN3 pin 1
OK?
Replace PCB04,
Power Supply
Conrm 5V on
PCB35 J400 pin 1
OK?
Conrm mains
voltage on
PCB04, CN1
OK?
Switch On/repair/
replace
connection or
mains cable
Replace
999module,
Chassis
Replace cable
between PCB04
and PCB35
Is it possible to
connect to the
product via
ServiceTool,
Web interface or
Bang & Olufsen
App?
Update to newest
software. See page
3.3
OK?
Make a factory
reset. See page 2.4
OK?
Check connection
between PCB35
CN402 and PCB55
J900
OK?
Replace
999module,
Chassis
Fault symptom:
No operation of touch panel
(Works when operating via Bang & Olufsen
App)
Possible causes:
Defective PCB55, Touch Board
Defective 999module, chassis
Replace PCB55,
Touch Board
Connect or replace
defective cable

2.8 Fault ow chart
No
Yes
Fault symptom:
No light in Product indicator or
No light in Network/Bluetooth Indicator
(See LED indication table page 2.2)
Possible causes:
Defective PCB55, Touch Board
Defective 999module, Chassis
Survey of plugs and
pins,
see page 2.12
Check connector
and cable between
PCB35 CN402 and
PCB55 J900
OK?
Connect or replace
defective cable
Replace
999module,
Chassis
Replace PCB55,
Touch Board
Fault symptom:
No adjustment of volume
Possible causes:
Defective PCB55, Touch Board
Defective 999module, Chassis
Check connector
and cable between
PCB35 CN402 and
PCB55 J900
OK?
Connect or replace
defective cable
Replace
999module,
Chassis
Replace PCB55,
Touch Board

Fault ow chart 2.9
No
Yes
Fault symptom:
No sound or poor sound
Possible causes:
Defective PCB04, Power Supply
Defective 999module, Chassis
Defective Speaker units
Conrm +14V on
PCB04 CN3 pin 4
and -14V on
pin 6
OK?
Replace PCB04,
Power Supply
Conrm +14V on
PCB35 J400 pin 4
and -14V on
pin 6
OK?
Conrm +36V on
PCB04 CN2 pin 3
and pin 4
Replace defective
cable
Check connection
between PCB04
and PCB35
OK?
Conrm +36V on
PCB35 J401 pin 3
and pin 4
OK?
Replace defective
cable
Check connection
between PCB04
and PCB35
OK?
Replace
999module,
Chassis
Replace PCB04,
Power Supply
Is sound missing or
poor in all
speakers?
Perform test of
speaker units, see
page 2.6
Are speaker units
OK?
Replace defective
speaker unit
Replace defective
999module,
Chassis
Replace defective
cable
Check connection
between PCB35
and the speaker
units
OK?
Replace defective
999module,
Chassis
Replace defective
999module,
Chassis

2.10 Fault ow chart
No
Yes
Fault symptom:
WiFi and/or Bluetooth are not working
Possible causes:
Defective PCB82.1, Wireless - Bluetooth
Antenna
Defective PCB82.2, Wireless - Antenna
Defective 999module, Chassis
Conrm that cable from PCB82.1 and
PCB82.2, Wireless - Bluetooth Antenna is
connected to
PCB01, Audio Streaming Engine
OK?
Connect Wireless
- Bluetooth
Antennas
Check cables
between Wireless -
Bluetooth
Antennas and
PCB01, Audio
Streaming Engine
OK?
Replace defective
cable
Replace defective
999module,
Chassis
Conrm that the customers router and
wireless network is working properly
OK?

Adjustments - Final check after repair 3.1
Adjustments
Information ...................................................................................... 3.2
Woofer, Midrange, Full Range or Tweeter ......................................... 3.2
Software update ............................................................................... 3.3
Final check after repair
Insulation test ................................................................................... 3.4
Software update ............................................................................... 3.4
Check sound .................................................................................... 3.4
Cleaning ........................................................................................... 3.4
Restore setup .................................................................................... 3.4

3.2 Adjustments
Adjustments
Information
Depending on the repair there might be different kinds of adjustments/alignment
to be performed, after maintenance of the product.
Some adjustments has to be done with ServiceTool.
After a repair it is very important that the product is updated to the latest software
version. See page 3.3
If Woofer, midrange full range or tweeter are replaced a speaker calibration must
be performed.
Woofer, Midrange, Full Range or Tweeter
Speaker calibration
Calibration of the speaker is necessary when one of the speakers is replaced. The
aim is to ensure optimal sound.
Connect ServiceTool, launch Beoplay A9 3rd gen. and follow the procedure under
Repair -> Speaker calibration.
The calibration data is located on the new speaker unit.

Adjustments 3.3
Software update
It is very important that the product is updated to the latest software version
before it is returned to the customer. This is to ensure the customer receives the
best possible experience. Software can be updated via the ServiceTool, the internet
or the Bang & Olufsen App.
While the software is being updated, the Product indicator and the Network/
Bluetooth indicator at the of the product, will lit red, pulsing repeatedly. The
update takes a while depending on the Internet connection. Do not disconnect
the product from the mains or the network while software is being updated.
Approach
Connect a service PC with ServiceTool to the same router as the Beoplay A9 is
connected to.
- Run ServiceTool.
- Be sure that ServiceTool is updated to the latest version. If not, upgrade and restart
ServiceTool.
- Scroll down to BeoSound section.
- Select Beoplay A9 3rd gen. and click Launch.
- Click on the PRODUCT tab (if not already shown).
- Click +next to each item to expand the menus.
- Click Software -> Software update.
- Follow the procedure in ServiceTool.
I/O
Internet
ISP Router
WAN/
Internet
LAN/Ethernet
AP

3.4 Final check after repair
Final check after repair
The nal check after repair describes the activities that are needed to ensure the
product will be returned in perfect condition to the customer. Follow the
procedures below:
Insulation test
The product must be insulation tested after having been dismantled. Make the
test when the product has been reassembled and is ready to be returned to the
customer. Flashover must not occur during the test.
Make the insulation test as follows:
- Short-circuit the two pins of the mains plug and connect them to one of the
terminals of the insulation tester.
- Connect the other terminal to ground on the Ethernet socket.
! NOTE
To avoid damaging the product it is essential that both terminals of the insulation
tester have good contact.
During the test the current must not exceed 5 mA.
Slowly increase the voltage on the insulation tester until a voltage of 2.5 kV (AC) is
obtained. Maintain the voltage level for one second, then slowly decrease the
voltage to 0 V (AC).
Software update
It is very important that the product is updated to the latest software version
before it is returned to the customer. This is to ensure the customer receives the
best possible experience. Follow the procedure on page 3.3.
Check sound
Test that all speaker units in the product play and sound correctly.
Cleaning
Wipe dust off the surfaces using a dry, soft cloth. Do not use liquid cleaners or
aerosol cleaners. To remove stains or dirt, use a soft, damp cloth and a solution of
water and mild detergent, such as washing-up liquid.
Restore setup
Before the product is handed over to the customer, connect all relevant cables and
restore the product to the customer setup. Check that all sources are working
correctly.