Philips BT-2500-BW-00 Service Manual

wireless portable speaker

BT2500B/W-00

TABLE OF CONTENTS

TECHNICAL SPECIFICATION ..........................................1-22

version variation ..................................................................... 1

Safety Instruction .................................................................. 2

BLOCK DIAGRAM .................................................................. 1

WIRING DIAGRAM................................................................ 2

Circuit Diagram ......................................................................1-2

TOP BOARD LAYOUT............................................................ 1

BOTTOM BOARD LAYOUT ................................................... 2

Exploded drawing .................................................................... 1

© Copyright 2013 WOOX Innovations Limited.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of WOOX Innovations. Philips and the Philips’Shield Emblem are
registered trademarks of Koninklijke Philips N.V. and are used by WOOX Innovations Limited

under license from Koninklijke Philips N.V.

Published by Raymond wk 1401 Subject to modification

Page

CLASS 1

LASER PRODUCT

3142 038 61040

Version 1.0

TECHNICAL SPECIFICATION

1-1

Set Type

Number

BT2500 /37 USA

BT2500

BT2500

BT2500 00

Prepared: Cheeked:

( ODM ) (ODM )

Stroke

Versions

/12 Europe

/05 England

Region/Countries

Finalized : Approved :

( Philips EPL) ( Philips PJM)

TECHNICAL SPECIFICATION

1-2

No.

1 PICK UP BUTTON

2 SOURCE

3 AUDIO IN

4 MICRO USB

5 MIC

6 SPEAKER GRILL

7 Vol KNOB

8 BOTTOM COVER

TECHNICAL SPECIFICATION

Cabinet

1-3

Dimensions with Boxes ( WxHxD)

W151xH181 xD55

Dimensions without Boxes ( WxHxD)

101(L)X101(W)X33(H)(mm)

Weight : 0.16KG Units in Master carton : 4sets

Weight ( including packing and

accessories ) :0.23KG

Material : ABS

Finishing : BLACK HIGH GLOSS

Units in Dealer carton : N/A

TECHNICAL SPECIFICATION

1-4

Table of contents

DOCUMENT HISTORY ................................ ............................................................................ 5

1. INTRODUC TION ................................................................................................................. 6

1.1 Purpose and Scope of Document .......................................................................... 6

1.2 References ........................................................................................................... 6

2. GENERAL INFORMATION AND REQUIREMENT .............................................................. 7

2.1 Product Family Features ....................................................................................... 7

2.2 Mechanical General Information ............................................................................ 8

2.3 Safety Standards .................................................................................................. 8

2.4 EMC Requirements ............................................................................................... 8

2.5 Other approbation ................................................................................................. 8

2.6 ESD Requirements ............................................................................................... 9

2.7 Environmental Condition ....................................................................................... 9

2.8 Quality .................................................................................................................. 9

3. TECHNICAL SPECIFICATIONS ........................................................................................ 10

3.1 Power Supply ...................................................................................................... 10

3.2 Technical Description .......................................................................................... 12

3.3 Audio Signal Processing ..................................................................................... 20

3.4 CLOCK ( N/A) ..................................................................................................... 20

4. MECHAN ICAL .................................................................................................................. 2 1

1-5

TECHNICAL SPECIFICATION

Document History

Date Person Ver Description

24/10/2013 0.1  First Draft(AA)

25/10/2013 0.2  Add Rechargable battery part.

dd/mm/year 1.1  Revised(before PV)










1-6

TECHNICAL SPECIFICATION

1. Introduction

Purpose and Scope of Document

1.1

The sheet 190 is the leading specification and is the response of development to the HAV as requested by

Product Management. Whenever the specification cannot be met, Product Management is to be informed as

early as possible in order to make sure the marketing can respond in time.

This sheet 190 does not cover software specifications. Software is described in the URS documents

and in the version matrix owned by Product Management. Product Management is responsible for

maintaining, distributing and updating the version matrix.

Sheet 190 will be part of the Philips official documentation from stage 2 onwards. All changes to sheet 190

have to be submitted via Change Proposals. Changes have to be marked in bold and/ or colours in the

document for easy recognition in at least the update right after the change. Deletion of text is done by strike

through in order to make changes obvious in at least the update after the change took place.

References

1.2

Reference Document

[CRS] Title

Author

Version

TECHNICAL SPECIFICATION

1. General Information and Requirement

Product Fa mily Featur e s

2.1

1.

2.

3.

2.1.1 External I/O Connections

1-7

Model

Stroke Version /37 /12 /05

Region USA Europe

USB charging

`

cables √ √ √

BT2500

/00

England

2.1.2 Controls, Local Display and LED Indications

1. Display N/A

2. LED Blue / RED LED

1-8

TECHNICAL SPECIFICATION

Mech anical Genera l Inf ormatio n

2.2

The productappearances and functions are defined in their respective MUS. Product management

approves the MUS and it is a leading document where product appearance is applicable.

Please refer to Sh560 for mechanical information.

Safety Standards

2.3

Where ap p l i c ab l e Standard

/12 (EU), /05 (UK), /51 (Russia) EN/IEC 60065 7th Edition

/37 (US, Canada) UL 60065

/55 (LATAM), /78 (Brazil) IEC 60065 7th Edition

/98 (AP), /69 (Singapore), /75 (Australia) IEC 60065 7th Edition

/93 (China) GB 8898 (IEC 60065 7th Edition)

/61 (Korea) K 60065 6th Edition

/96 (Taiwan) CNS 14408 (IEC 60065 7th Edition)

EMC Requirements

2.4

Where ap p l i c ab l e Standard

/12 (EU), /05 (UK), /51 (Russia) EN55013: 2001, EN55020: 2002

/37 (US, Canada) FCC15

/55 (LATAM), /78 (Brazil) CISPR13

/98 (AP), /69 (Singapore), /75 (Australia) CISPR13

/93 (China) CISPR13/20

/61 (Korea) GB 13837 (CISPR13)

/96 (Taiwan) CNS 13439 (CISPR13)

Other approbation

2.5

Function Requirement or Not

Bluetooth YES

1-9

Level

1

2

3

4

5

Level

1

2

3

4

5

TECHNICAL SPECIFICATION

ESD Requirements

2.6

The product shall withstand electro static discharges on all user accessible parts of the product.

Reference: IEC61000-4-2.

For contact discharges:

General (kV) USA (kV) Requirement

0-2 0-3 No deviations allowed.

>2-4 >3-4 Short perceptible deviations allowed.

>4-5 >4-5 Normal recallable functions function changes allowed.

>5-7 >5-7 Control recallable functions function changes allowed.

- >7-8 No loss of stored data allowed.

For air discharge:

General (kV) USA (kV) Requirement

0-4 0-6 No deviations allowed.

>4-8 >6-8 Short perceptible deviations allowed.

>8-10 >8-10 Normal recallable functions function changes allowed.

>10-15 >10-15 Control recallable functions function changes allowed.

>15 >15-18 No loss of stored data allowed.

General requirement:

1. 10 arcs for positive and negative polarity for unit “on” and “off” for 1kV incremental steps.

2. Component or mechanical damage is not allowed. No loss of fixed stored data (stored in EEPROMs).

3. Hang-ups and malfunctions are allowed, as long as the customer can “recover” from the hang-up by

pressing the Standby or ON/OFF button of the set.

4. Failures that disappear only by unplugging the AC mains cord and/or power sources are not acceptable.

Environment al Condition

2.7

The environmental condition requirements and test method is according to UAN-D1590.

Ambient temperature : max. 40 ° C - all climates

Apparatus acc. to spec. : +5 to + 35 ° C

Vibration test (acc. IEC 60 068/2/6) : operational vibration test to be proceeded in operating position of the

set.

PQR-class: class 2 according toBLC V&MA PQR handbook V2.1 (2006-10-02)

Lifetime: 7 years

Tested According to: General Test Instruction UAN-D 1591

Measured According to: UAN_L 1059 unless otherwise stated

2.8

Quality

1-10

TECHNICAL SPECIFICATION

3. Technical Specifications

Power Supply

3.1

USB 5V 500MA Li- Polymer 3.7V 750MAH

3.1.1 Type and versions ( NA)

Wall mounting external AC/DC adaptor will be used for all models and stroke versions.

AC/DC adaptor 9V/0.33A, No load power dissipation<0.3W. Average Efficiency>62.97%

Versions Region/Country Adaptor

12 / 05 EUROPE / UK

37 NAFTA

55 LATAM

98 APAC

94 India

All requirements per defined for each country should be met with sufficient testing.

3.1.2 Surge Immunity (Lightning Test) ( NA)

The product shall withstand mains interference’s of:

Differential mode:

 2kV/2 ohm criteria C for Europe.

 6kV/12 ohm criteria C for NAFTA.

1) 100 ~240Vac nom. (wide range from 90V~264Vac limit) used in all

versions except India.

Frequency: 47~63Hz.

2) 100 ~310Vac limit (India compatible with up cost) used only for India.

Frequency: 47~63Hz.

Parameters:

 Bi-wave

 Open circuit voltage: 2/50us

 Short circuit current: 8/20us

 From +/1kV to +/-2kV (for Europe) or +/-6kV (for Nafta) in steps of 1kV.

 10 shots per combination.

 One shot per minute.

 Serial impedance: 2 Ohm for Europe, 12Ohm for Nafta.

 Polarity and phase: Positive (phase 90º) & Negative (phase 270º)

Common mode:

 6kV/2 ohm criteria C for Europe.

 6kV/12 ohm criteria C for Nafta.

1-11

TECHNICAL SPECIFICATION

Parameters:

 Ring-wave (100kHz)

 From +/3kV to +/-6kV in steps of 1 kV.

 10 shots per combination.

 One shot per minute.

 Serial impedance: 2 Ohm for Europe, 12Ohm for Nafta

 Polarity and phase: Positive (phase 90º) & Negative (phase 270º)

Reference: IEC61000-4-5 and for USA: 3135 019 8029 Reliability evaluation.

Requirements:

 Apparatus should fulfil the leakage current requirements of IEC60065 point 9.1.1 (UAN-D1631)

 Defects or permanent deviations are not allowed.

3.1.3 Mains Drop-out Immunity ( NA)

The product shall withstand mains failures of:

 Variation 0%(=100% dip) at T-event = 50 mSec. Performance criterion B

 Variation 40%(=60% dip) at T-event = 100 mSec. Performance criterion B

 Variation 0%(=100% dip) at T-event = 5 Sec. Performance criterion C

Additional for USA apparatus: See 3135 019 8029 Reliability evaluation.

 Variation 0%(=100% dip) at T-event = 100 mSec in standby mode. Performancecriterion B

Requirement:

No misoperation and no interference of user in order to guarantee continuation of performed function.

Reference: IEC61000-4-11 For measuring method refer to UAN-D1724, as far as applicable.

Performance criterions according to IEC61000-4-4 Amendment 1

Performance Requirement

Criterion A - No any degradation of specification.

Criterion B - Temporary degradation / self recoverable.

Criterion C - No damage, resolvable hang-up.

Criterion D - Not recoverable loss of function.

3.1.4 Power Consumption ( NA)

Power consumption at nominal AC input:

1. 1/8 P-rated output power : ≤3

2. Low Power Standby Mode: ≤ 0.5

W

W

TECHNICAL SPECIFICATION

Techni ca l Des cript ion

3.2

3.2.1 TUNER ( N/A)

General Part

Tuner Range Version Tolerance Tuning Grid

FM 87.5 - 108.0 MHz /12 Quartz Precision 50Khz

FM 87.5 - 108.0 MHz /37 Quartz Precision 100Khz

AM /12 Quartz Precision 50Khz

AM /37 Quartz Precision 100Khz

AERIAL

AM: N/A

1-12

FM: Pig tail 75 ohm

1-13

TECHNICAL SPECIFICATION

FM Electronic Data( N/A)

General measuring conditions:
(if not otherwise indicated)
Aerial input : 75 Ohm, 71 dBf
Aerial voltage : EMF
Deviation : 22.5 kHz
Modulation : 1 kHz

Item Nom Limit unit Remark

Tuner range

Low 87.5 - MHz

High 108.0 - MHz

88Mhz 18 22 dBf

-26dB Noise Limited Sensivity

98Mhz 18 22 dBf

107Mhz 18 22 dBf

-3dB liming point 17.5 23.5 dBf

S/N Rao 60 55 dB

88Mhz 30 25 dB

Selecvity 300 kHz

98Mhz 30 25 dB

107Mhz 30 25 dB

AM suppression 35 30 dB

88Mhz 65 60 dB

IF Rejecon

98Mhz 65 60 dB

107Mhz 65 60 dB

88Mhz 30 25 dB

Image Rejecon

98Mhz 30 25 dB

107Mhz 30 25 dB

Overall Frequency Response(63Hz~12.5KHz) ±3 dB According acousc spec.

Distoron ( RF 1mV, Frq Dev.75 kHz ) 2 3 %

88Mhz 116 108 dBf

Large Signal Handling

98Mhz 116 108 dBf

107Mhz 116 108 dBf

400Hz 26 20 dB N.A for AJ6000

Channel separaon

1000Hz 30 26 dB N.A for AJ6000

5000Hz 20 18 dB N.A for AJ6000

Channel unbalance 1000Hz 2 dB N.A for AJ6000

Modulaon Hum 50 45 dBf

Search tuning sensivity(at stereo mode) 28 35 dBf

Search me digital tuning system 60 S

FM Self pollutio n

Susceptibility to unwanted

signals(CPU,SMPS,AMP,DSP …)

Limited(dB) Normal(dB) Remark

-15dB -20dB Refer to selfpollution curve

1-14

TECHNICAL SPECIFICATION

AM Electronic Data( N/A)

General measuring conditions:

(if not otherwise indicated)

Modulation : 30 %

Modulation frequency : MW & SW : 1000 Hz;

Band-pass filter : 300 – 15,000 Hz

Item Nom Limit unit Remark

Tuner range

Low 531/530 - kHz

High 1602/1700 - kHz

603/600kHz 1300 3250 uV/m

-26dB Noise Limited Sensivity

999/1000kHz 1300 3250 uV/m

1404/1400kHz 1300 3250 uV/m

603/600kHz 30 25 dB

Automatic Gain Control(AGC)

999/1000kHz 30 25 dB

1404/1400kHz 30 25 dB

603/600kHz 25 20 dB

Selecvity 9/10K kHz

999/1000kHz 25 20 dB

1404/1400kHz 25 20 dB

IF Rejecon 531/530kHz 28 24 dB

Image Rejecon 1602/1700 32 28 dB

Spurious response rejection

ratio.

603/600kHz 32 28 dB

1404/1400kHz 32 28 dB

According acousc

Overall Frequency Response(60Hz~1.6KHz) ±3 dB

spec.

Distoron ( RF 50mV/m,Mod=80%Frq=1KHz ) 3 5 %

603/600kHz 1 0.5 V/m

Large Signal Handling

999/1000kHz 1 0.5 V/m

1404/1400kHz 1 0.5 V/m

S/N Rao 45 40 dB

Channel unbalance 1000Hz 2 dB

Modulaon Hum 50 45 dB

Search tuning sensivity

α

dB ± 10 dB

Search me digital tuning system 60 S

1-15

TECHNICAL SPECIFICATION

3.2.2 Audio in( Speaker impendence 8 ohm)

Item Nom Limit unit Remark

Output power 3 ±1dB W 10% THD

Input sensivity 250 ±100 mV

Frequency response(63Hz-20Khz) ±1 ±3 dB According acousc spec.

Channel separaon 35 30 dB N.A for BT2500

Channel difference

±1 dB N.A for BT2500

Signal to Noise Rao(A-weighted): 67 62 dB

Crosstalk between inputs /sources

60 50

250 – 10,000 Hz

Hum (Volmin --- Volmax -20dB) 200 nW

Residual Noise(Volume Minimum) 40 - nW

THD, Maxmium 0.8 1.0 %

Balance between inputs /sources

±3 dB

Source input condition:

Audio Input Sensitivity(±3dB) rated output power at 1kHz

Tuner N/A

CD/MP3 N/A

Bluetooth -3dB 1KHz sine wave( 2.0HS)

MP3_link(Aux in) 250mV±50mV; Rin ≥ 22kΩ

1-16

TECHNICAL SPECIFICATION

3.2.3 CD/MP3/iPhone ( N/A)

item Nom Limit unit Remark

Signal to Noise Rao(A-weighted): 67 62 dB

Signal to Noise Rao(Un-weighted): 62 57 dB

Frequency response(63Hz-20Khz) ±1 ±3 dB According acousc spec.

Channel separaon 35 30 dB N.A for AJ6000

Channel difference

±1 dB N.A for AJ6000

THD 0.8 1.0 %

Dynamic range

75 dB

Playability: (acc. to AR 30-05-239)

Limit Typical Test disc

Wedge 600 m 900 m TNO 7,9 of SBC 444A (7104 099 24990)

Eccentric 150 m 200 m TNO 1,24 of 200m disc (7104 099

24960)

Fingerprint No audible defect TNO 11of Subchassis 8A

Black dot 500 m 800 m TNO 13 of SBC 444A (7104 099 24990)

Skew 0.6mm No audible defect TNO 1,6 of 0.6mm skew (7104 099

28260)

Bad HF track No audible defect TNO 8 of Subchassis 8A

Heavy fingerprint No track

jumps/plops

Playback position Horizontal, Normal position (Set is located on a flat surface, floor)

- Playback of above mentioned tracks possible without track loss or audible defects.

- Double black dot, max. diameter, thin/thick disk is according to PQR or AR 30-05-239)

- Detail result, refer to Playability KOP report

TNO 10 of Subchassis 8A

1-17

TECHNICAL SPECIFICATION

3.2.4 Tape ( N/A)

General part

Item Specification Unit Item

Tape Speed 4.76 CM / S Auto Stop (SEMI ) Yes

Speed Control

WOW and Flutter 0.4 ( JIS) % Auto Replay No

Fast Wind / Rewind C 60 130 S Cue / Review No

No. of Tracks 2 Tracks ( Stereo ) Mono: REC/PB No

Mech. Noise ISO Normal Speed : < 38 dB ( A ) Stereo: REC/PB Yes

Tape ( PB ) IEC I ECM No

Tape ( Recording ) IEC 1 Pitch control No

Tape Select Auto Mixing No

Recording Level ALC(Auto) Monitoring No

Remote Controlled No

High Speed Dubbing No

Indicator

±

2 % Auto Reverse No

Noise Reduction

System No

Sound improvement

system No

Recording level No

Play back level No

Tape counter No

Electronic data

Item Nom Limit unit Remark

Bias system FM/AM 73 ±1 KHz AC

RIF switch N/A

Erase system FM/AM Permanent Magnet

Erasing damping 62 55 dB IEC1 ,1Khz

Channel separation 24 18 dB IEC1 ,1Khz

Track separation 60 55 dB IEC1 ,1Khz

Frequency response (PB)

6 8 dB

SNR 250nWb/m 46 43 dB

Channel difference (PB) 0 3 dB

Distortion 250nWb/m 3 5 %

125Hz~8Khz : 8dB

250Hz~4Khz : 6dB

ALC attack time 150 500 mS

ALC release time 15 5 Sec

Recording level 0 -3 dB

1-18

TECHNICAL SPECIFICATION

3.2.5 Bluetooth test

Item Specification Remark

Bluetooth version 3.0

RF Output Power -6 to +4 dBm

Sensitivity at 0.1% BER

Operating Frequency Band 2.4GHz ~ 2.48GHz

Receive HSP N/A

AUX INPUT N/A

MICROPHONE N/A

Remote Controlled No

Noise Reduction System No

Electronic data

Item Nom Limit unit Remark

Signal to Noise Ratio(A-weighted): 67 62 dB

Signal to Noise Ratio(Un-weighted): 62 57 dB

Frequency response(63Hz-20Khz) ±1 ±3 dB According acoustic spec.

Channel separation 35 30 dB

Channel difference ±1 dB

≤-70 dBm

THD 0.8 1.0 %

Connected distance 10 m Open site

1-19

TECHNICAL SPECIFICATION

3.2.6 Digital output (N/A)

Item Specification Remark

CDDA/LPCM (including MPEG1) IEC60958

MPEG2, Dolby Digital (AC-3)

DTS, 96kHz 24 bit

Electronic data

Item Nom Limit unit Remark

Output signal amplitude 0.5Vpp ±20% V

Output Impedance 75 ±20% ohm

DC output voltage <0.05 V

Clock accuracy 100 1000 ppm

Jitter < 15ns ns

Rise/fall times:

data bit logical “1”

data bit logical “0” twice continuously 0.2UI

Duty Cycle Ratio:

data bit logical “1” 40~60%

IEC61937



0.4UI

data bit logical “0” twice continuously 45-55%

1-20

TECHNICAL SPECIFICATION

3.2.7 Rechargable battery

Can charge at 5V/500mA input.

Electronic data

Item Nom Limit unit Remark

Output Resistance N/A Ohms

Charge voltage 4.2 1% V

Nominal voltage 3.7 1% V

Standard Charge current 250 1% mA

Max. charge current 400 1% mA

Typical Capacity 750 1% mAH

Charging time 3 4 Hour

Charging Voltage 4.2 ±0.1 V

Discharging time

BT Playback (1/8 rated power) 8 6 Hour

Discharge cut-off voltage 3.1 ±0.1 v

Leakage current before protection---Power

off 60 ±6 uA

Leakage Current after protection---Power off 5 ±5 uA

Audio Signal Processing

3.3

Attached volume & EQ setting table.

CLOCK ( N/A)

3.4

Technical description

Software implemented clock/timer function with 32.768khz quartz oscillator

1-21

TECHNICAL SPECIFICATION

Item Specification

Timer Setting Clock and Timer

Timer Wakeup Mode Buzzer, Radio

Remarks Time Setting /12 version for 24hrs /37 version for 12hrs

Volume at Wakeup 12 level Volume

No of Alarm Timer Settings 2 Alarm timer, select 7days/5days/2days

Alarm setting 9minutes Repeat alarm, 30minutes Max. alarm duration

Nom : 0.5 sec/day Limit :

Clock Accuracy

Battery Backup “AA” size battery x 2 Battery Backup “AA” size battery x 2

INDICATORS

Display Type LED

1 sec/day

4. MECHANICAL

4.1.1 Shock Sensitivity

Refer to Quality plan for the details of the test discs and testing method.

Requirement:

No muting, plop sounds, picture freeze/jerk or audible/visible interference when impacting with force of -

 In the X and Y directions: F 3g / 3ms, V = 0.06m/s

.2g / 3ms, V = 0.04m/s

 In the . Z direction: F

Where g = acceleration due to gravity.

4.1.2 Thermal Performance

Refer to Quality plan for the details of the testing method.

1-22

TECHNICAL SPECIFICATION

Requirements:

1. Set should function normally

2. Temperature rise of accessible parts such as metallic enclosures (casing) shall not exceed 40˚C

above the ambient temperature.

3. Temperature rise of PCB prints shall not exceed 85˚C

4. Temperature readings of all mechanical / electrical components and modules shall not exceed their

specification limits. The calculated junction temperature of semiconductors shall also not exceed

spec limits.

4.1.3 Noise Specifications

Test Conditions:

Measurements are to be made inside an Anechoic Chamber (echo-free environment) with ambient noise of

less than 16dBA.

Measurements are to be taken at the following positions: -

(a) Top-Surface and at center of Front-Cabinet

(b) Front-Surface and at center of Front-Cabinet.

The microphone is to be positioned 10cm from above mentioned surfaces.

Set Functional State Requirement
Normal
Idle Stat e

Tray Open/Close

CDDA & SACD
(Stereo & Multichannel)

Standby Mode < 20 dBA

Set On and "No Disc" mode < 20 dBA

Start/End peak noise < 65 dBA

Tray running noise (RMS) < 50 dBA

Stop to Play peak noise < 35 dBA

Play (first & last tracks) <30 dBA

Search Forward & Backward (all speeds) <33 dBA

Pause (first & last tracks) < 28 dBA

Jump Forward (first to last track) <38dBA

Commercial Disc

Jump Backwards (last to first track) <38dBA

Stop to Play peak noise < 35 dBA

Play (inner & outermost title, Layer 0) < 30dBA

Search Forward & Backward (all speeds) < 35 dBA

Pause (inner & outermost title, Layer 0) < 30 dBA

Jump Forward (inner to outermost title) < 40 dBA

Jump Backwards (outer to innermost title) < 40 dBA

Layer Jump (layer 0 to layer 1) < 40 dBA

version variation

2-1

Type /Versions:

Board in used:

Main BOARD

VR Board

Features

RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used

Service policy

Type /Versions:

Feature diffrence

BT2500B/W

/00/37

M
M

BT2500

/00/37

Safety Instruction

WARNING

GB

All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.

F

ATTENTION

Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.

2-2

ESD

D

WARNUNG

Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.

WAARSCHUWING

NL

Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
Zorg ervoor dat u tijdens reparatie via een
polsband met weerstand verbonden bent met
hetzelfde potentiaal als de massa van het
apparaat.
Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.

I

AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.

GB

Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.

NL

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.

F

Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.

D

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.

I

Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.

“Pour votre sécurité, ces documents
doivent être utilisés par des spécia­listes agréés, seuls habilités à réparer
votre appareil en panne”.

CLASS 1

LASER PRODUCT

GB

Warning !

Invisible laser radiation when open.
Avoid direct exposure to beam.

S

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.

Varoitus !

SF

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!

3122 110 03420

"After servicing and before returning set to customer perform a

DK Advarse !

leakage current measurement test from all exposed metal parts to
earth ground to assure no shock hazard exist. The leakage current
must not exceed 0.5mA."

Caution: These servicing instructions are for use by qualified service personnel only.
To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.

Block Diagram

3-1

BLOCK DIAGRAM

AUDIOIN

KEY

SLIDESWITCH

luetooth

B

37

FW

17

hi

g

h

PA

SSfilt

e

r

TDA74

91

4558

AudioLimiter

AMPLIFLER

VR

D2761

STEP-UP

KA

BLUETOOTH_ LED

low power LED

KA

charging LED

SW

ITCHIN

G

REGULATOR

4 ohm 4W

SPEAKER

ME2149

USB

Da

ta

LDO

7533_3.3V

Sig

nal

charging

AT6009

Power

Li batteries

3.7V/750mA

WIRING DIAGRAM

3-2

Circuit Diagram

4-1

BT speaker

VDD-IO

P16

C

E

MIC+

21

+

MIC

-

MIC-

TC-1312I

8050

Q3

P02

SW1

R61

10K

C76

NC

RST-N

B

BT_AUDIO

12

34

BT/AUX

R46
10K

R45

10K

R34

NC

C31

106

R30

2K

C26

473

R28

1K

C33

220P

R27

2K

C22

475

C24

334

C86

22P

R29

C29

GND3

B

1K

473

RX

TX

P20

ADAP

BK-OUT

BAT_BT

R68

2K

C75
104

C23

475

Q11
8050

Firmware update

R78
5K1

B

C

NC

R69

E

LN6206

U7

RST-N

inout

1

3

FW3717

BT1

30
31
32
33
34
35
36
37
38
39
40
41
42

4148

2

C

E

D3

NFC
BUZZER
EAN
AOHPM
SPKR
SPKL
MIC_P
MIC_N
MIC_BIAS
AIR
AIL
GND4
RSTN

C21
106

PHONE1

EJ325D6U0BB3-69T

Q14

8050

C

E

MONO_ANT

25RF26

27

GND3

LINE_IN-DET

DC IN:5V/1.2A

POWER

R79
15K

R2

100K

B

22V+23

24

P03

GND2

UART-RX
UART-TX

P20

ADAP-IN-IC

BK-0UT

BAT_IN

8050

Q2

+5V

P20

P00

28

29

USB_ID

SLIDE_DET

CODEC_VIN

VDD_IO3SCL4SDA5ADAP_IN6GND17BAT_IN8SYS_PWR

1

2

VDD-IO

ADAP-IN-IC

USB1

DM

DP

ID

GND

C44

105

PA_EN

LED2
LED1

ON/OFF

C70

106

R17

R57

RXD
TXD

REV

FWD

P02
P24

SK1

V-

BK

6
5
4
3
2
1

1

2

FB4

3
4
5

FB5

R16

15K

10K

10R

21
20
19
18
17
16
15
14
13
12
11
10
9

SYS-POWER

C55

104

USB_VDD

FB120

FB120

VDD-IO

R41

C54

470uF/10V

P00

DET

FB3

USB_GND

STBY

MUTE

AUX

DET

UART-TX

BK-0UT

10R

0R

FB1

FB2

0R

0R

GND

R76

NC

FUSE

12

C13

106

Q13

E

8050

C

R33

680R

UART-RX

P02

P16

MFB

SYS-POWER

SYS-POWER

R31

10K

BAT_IN

R32

NC

R

R19

R20

L

USB_VDD

R54

1K

B

1K

1K

R21

22K

C42

104

Q16

8550

R55

R95

47K

R81

10K

E

B

C

R97

0R

IT7536

U6

2

outin

1

Q4
8550

B

E

Q5

2302

G

SD

C17

C18

102

1K

3

BAT_IN

R47

100K

104

R44

D2

1K

BT_AUDIO

0R

R35

1K

4148

C

100K

R89

C87

22P

R40

1K

R38

R39

PROG

GND

1.2K

R86

BAT

2.7K

R43

R15

22K

1K

2

5

LED1

LED2

1K

R87

C

E

MFB

C27

C93

102

22P

ATD6009

U4

6

CHRG2

7

CHRG1

1

NC.

8

NC

C

Q17
8050

E

R42

R37

4

VCC

GND.

3

9

B

1.2K

R14

10K

R83

E

B

8050

C

Q7

Q6

2301

S

D

G

C34

225

C14

OFF

106

AUX

BT

100K

Q18

8050

B

7

6

8

C88

22P

BT+

AUX_INA

SW2-B

BAT1

3.7V/750mA

100K

5

R85

IN

C92

22P

SS24

D1

D10

SS24

C85

22P

IN''

AUDIO

R70

S

1M

G

Q15
ST2341

D

C91

12

C12

C65

104

226

C64

226

100UF

BT-

106

C66

104

C28

C25

106

GND1

C84

22P

100K

R50

L1

4.7UH

R10

180K

Q9

8050

SS24

R11

CON1

NPC3

1

2

3

C

E

75K

0UT'

100K

R48

B

D4

U3

7

LX

8

LX.

5

VDD

6

VDD.

3

CE

CON2

NPC3

1

2

3

C

E

C68

106

ME2149S

NC

FB

GND

2

OUT

8050

1

4

Q10

B

GND2

2

R12

27K_1%

R13

6.2k_1%

1

VR1

3

IN'

C69

106

C11

104

VR PCB

D9

C94

226

Q8

2301

100K

R49

Q12

E

C67

100uF/16V

+6V8

4148

S

G

8050

POWER

VCC

100K

D6

1

R51

100K

47K

B

R52

4148

D

AUX

C

R88

100K

R53
100K

R36

C72

105

4

2

3

VCC

SW2-A

OFF

BT

AUX

1K

R75

100K

+5V

R64

100K

+5V

Q20

BAT54C

1

2

3

R90

BT/AUX

AUX_IN

1K

BT speaker

4-2

Circuit Diagram

IC3

AUX_INA

AUX_IN

R26

0R

1/2VCC

C60

226

R24

C73

NC

NC

1/2VCC

C59

226

R91

NC

334

4558_VCC

C20

NC

R22
NC

22K

C51

C52

R23

NC

C10

104

C1

R63

R65
R62

R66

C2

R67

104

104

39K

C56

20R

R58

104

0R

NC
100K

NC

105

100K

106

C39

104

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

VSS

SVCC

VREF

INNB

INPB

GAIN1

GAIN0

SVR

DIAG

SGND

VDDS

SYNCLK

ROSC

INNA

INPA

MUTE

STBY

VDDPW

C77

22P

C38

474

U2

UTC4558

8

+VCC

7

OUT2

C19

NC

6

2IN-

NC

R25

10

GND

9

OUTB

8

INB

4558_VCC

C82

22P

U1

D2761

R9

10K

5

2IN+

A

10K

R8

C9

104

V+

OUTA

INA

OUT1

1IN-

1IN+

-VCC

1

2

3

334

1

2

3

R18

NC

4

C61

226

22P

C79

C46

R93

OR

106

1K

R4

NC

C6

C62

226

C58
104

334

C71

C4

473

C5

224

334

C7

R77

R71

C80

NC

C53

VCC

820R

R5

NC

R6

56K

VCC

C57
226

6.8K

C81

22P

C50

C8

NC

R3

C74

NC

R92

NC

100R

R7

100R

333

AM_IN

AUDIO

VCC

10K

R1

Q1

8050

10K

R56

C63

226

A

B

R74

10K

22P

C41
C

E

MUTE

STBY

C40
474

22P

C78

R82

56K_1%

C16

104

C3

C15

R59

104

C30

TDA7491P

SSOP-36

SUB_GND

GAIN0

0V

3.3V

OUTPB

OUTPB

PGNDB

PGNDB

PVCCB

PVCCB

OUTNB

OUTNB

OUTNA

OUTNA

PVCCA

PVCCA

PGNDA

PGNDA

OUTPA

OUTPA

PGND

C32
224

C45

224

C89

106

Mode

Standby

Standby

Mute

Play

SP+SP-

CN1

VCC

C90

106

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

22P

C83

Nominal gainGAIN1

20dB0V

26dB3.3V0V

30dB0V3.3V

32dB3.3V

C48
10P

C36

330P

R60

22R

L2

15UH

L3

15UH

STBY

0V

0V

3.3V

3.3V

C37
104

C43
474

C35

470uF/16V

MUTE

0V

3.3V

0V

3.3V

R73

10K

R72

20K_1%

7

6

SW

SENSE

INT

VREF

683

224

R94

C47

NC

C49

4

5

TOP BOARD LAYOUT

5-1

BOTTOM BOARD LAYOUT

5-2

Exploded drawing

6

9

6-1

7

8

4

SPK

5

1

2

7

3