Bang & Olufsen BeoLab 17 Bedienungsanleitung

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

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

Ver. 1.1 .......... Replacement of modules, Available parts updated with

new grounding plate and Specication 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 Amplier

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

82.1

82.3

82.4

82.2

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-protectiveeldservice

- White gloves

- Shoe covers

- Soft lint-free cloth for cleaning

- Wi-Spy (Wi-Spy DBx + Chanalyzer Pro)

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 3.7.

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-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.

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

homogeneousmaterialsofthepartexceededtheMCVlimitsspeciedinthe

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 conrm 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.

Andere Handbücher für BeoLab 17

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