Bang & Olufsen BeoLab 17 Manual de usuario
BeoLab 17
Type 6602 - 6603, 6606 - 6609, 6612 - 6614
BeoLab 17 MK II
Type 6619, 6622 - 6628
Before serial no. 25010056
Service Manual - version 1.2
English
CONTENTS
Survey of modules ........................................................................ 1.1
How to service .............................................................................. 1.2
Troubleshooting - Fault ow chart ................................................. 2.1
Adjustments .................................................................................. 3.1
Replacement of modules ............................................................... 4.1
Specication 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
Ver. 1.1 .......... Replacement of modules, Available parts updated with
new grounding plate and Specication updated with MK II
Ver. 1.2 .......... New spare part numbers of End caps in Available parts
Survey of modules 1.1
Survey of modules
Modules:
PCB02 Connector
PCB04 Power Supply
PCB30 Digital Sound Engine
PCB35 Amplier
PCB47 LED Indicator
PCB48 NTC
PCB89 Wireless Power Link Rx
Antennas:
82.1 Wireless Antenna
82.2 Wireless Antenna
82.3 Wireless Antenna
82.4 Wireless Antenna
Speaker units:
Tweeter
Woofer
04
02
30
35
89
82.1
82.3
82.4
82.2
47
48
1.2 How to service
How to service
Strategy
This product is to be serviced in the customer’s home.
The repair involves replacement of the module(s), which are supplied in the back-
up suitcase. The replaced modules must be returned for repair at the Bang &
Olufsen Module Repair department. Error codes as well as an adequate fault
description must be returned with each replaced part. For this purpose, use the
the Exchange Module section in the Retail Order System. To help the Bang &
Olufsen Module Repair department it is very important to answer the following
questions:
1. Which software versions are used in the product?
2. What happens in the actual situation?
3. Error code, the error code contains data that may be used for repairing the
module(s) and must be returned with the defective module(s).
Handling the error code (error log).
a. Make a note of the error code/codes on the Exchange Module section and print it.
b. Use the error code when troubleshooting.
c. Return the error code in the Retail Order System.
d. Before returning the product to the customer, clear the error code (error log).
Preparations before service
Fault explanation and demonstration
Before troubleshooting is initiated, let the customer demonstrate the fault, if
possible.
Recommended tools for service
- Bang & Olufsen ServiceTool
- Static-protectiveeldservice
- White gloves
- Shoe covers
- Soft lint-free cloth for cleaning
- Wi-Spy (Wi-Spy DBx + Chanalyzer Pro)
Final check after repair
Thenalcheckafterrepairdescribestheactivitiesthatareneededtoensurethe
product will be returned in perfect condition to the customer.
Please refer to ‘Final check after repair’ section on page 3.7.
How to service 1.3
Warnings when handling
Static electricity
Static electricity may damage the product. The integrated circuits operates with
very low voltages, and that makes the product extremely sensetive to static
electricity.
Static-protectiveeldservicekit
Astatic-protectiveeldservicekitmustalwaysbeusedwhentheproductis
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.
ESD
ESD-Mat
STATIC ELECTRICITY
MAY DESTROY THE
PRODUCT
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.
Management methods for controlling pollution caused by Electronic Information Products
Component
name:
Hazardous substance
Pb Hg Cd Cr(VI) PBB PBDE
Aluminum parts ×ooooo
PCBA ×ooooo
Symbols used in the charts:
o Indicates all homogeneous materials’ hazardous substances content are below the
ST/T 11363–2006 MCV limit.
× Indicates that the hazardous substance content contained in any one of the
homogeneousmaterialsofthepartexceededtheMCVlimitsspeciedinthe
standard SJ/T 11363-2006.
1.4
Troubleshooting - Fault ow chart 2.1
Troubleshooting
LED indicator ................................................................................... 2.2
Description of LED indications .......................................................... 2.2
Product Information - Usage data .................................................... 2.3
Error Log ......................................................................................... 2.3
Speaker unit test .............................................................................. 2.4
NTC module test .............................................................................. 2.4
Sound test ....................................................................................... 2.5
Fault ow chart
No function and no LED indication ................................................... 2.6
LED indicator is ashing slowly orange ............................................. 2.7
LED indicator is ashing quickly orange ............................................ 2.8
No sound from speaker in a wired setup .......................................... 2.9
No sound from speaker in a wireless setup ..................................... 2.10
The signal for wireless connection is low ........................................ 2.11
Distorted sound from speaker ....................................................... 2.12
Survey of plugs and pins ................................................................ 2.13
2.2 Troubleshooting
Troubleshooting
LED indicator
The LED at the front of the speaker indicates the state of the product by changing
colour (red/orange/green), ashing or solid. If errors occur during operation, the
product will enter an error state and the LED will start ashing quickly orange.
Description of LED indications
- Green
Solid (10 seconds duration):
The product switches on.
Flashing slowly:
Software update is on-going.
Flashing quickly:
Associate mode (ready for pairing).
- Orange
Solid:
The signal strenght for wireless connection is low.
Flashing slowly:
The product is close to overheating and will shut down temporarily. The product
will eventually revert to normal operation.
Flashing quickly:
The product is failing. The product will not revert to normal operation. In some
cases it can be resolved by disconnecting/connecting the mains.
This could be:
- NTC is defective or disconnected.
- Digital Sound Engine is overheating.
- Calibration failed or has not been done (ashing quickly orange/green).
- Red
Solid (10 seconds duration):
The product is connected to mains, the product is switching off or the product
restarts after a reset.
Troubleshooting 2.3
Product Information - Usage data
Usage data is logged in the product which can be very useful information in
troubleshooting situations. Use the ServiceTool to read out the usage data.
Error Log
If an error occurs in the product, it is recorded and saved in the error log. The error
log may be helpful in troubleshooting situations. Use the ServiceTool to read out
the error log.
Approach (ServiceTool)
Connect a service PC with ServiceTool. Follow the procedure below:
- Connect the ServiceTool to the SERVICE connector on the product as shown:
Use ServiceTool cable (see Available parts) together with Standard Ethernet cable.
- Run ServiceTool.
- Be sure that ServiceTool is updated to the latest version. If not, upgrade and restart
ServiceTool.
- Scroll down to BeoLab section.
- Select BeoLab 17 and click Launch.
- Click on the PRODUCT tab (if not already shown).
- Click + next to each item to expand the menus.
- Click System Info -> Product ID (the information screen appears).
- Click the Read button and conrm that product data is read out on the screen.
This indicates successful communication between the product and the service PC.
I/O
2.4 Troubleshooting
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 6.3 ohm 5.7 - 6.9 ohm
Woofer 6.7 ohm 6.0 - 7.4 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.
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