Philips FWM462 Manual de usuario

Version 1.0

FWM462

3141 785 35290

280W Mini Hi-Fi System

-/55/77/BK

Published by LX 1023 Service Audio Subject to modification

system or transmitted, in any form or by any means, electronic, mechanical, photocopying,

or otherwise without the prior permission of Philips.

CONTENTS

�

Technical specification ..................................................................1-2

Version variation ...........................................................................1-2

Service measurement setup..........................................................1-3

Service aids .................................................................................1-4

Instructions on CD playability ................................................2-1..2-2

Block diagram................................................................................3-1

Wiring diagram ..............................................................................4-1

Disassembly diagram............ ................................................5-1..5-2

Main board

Circuit diagram .........................................................................6-1

Layout diagram..................................................................6-2..6-3

AC board

Circuit diagram .........................................................................7-1

Layout diagram..................................................................7-2..7-3

Display board

Circuit diagram .........................................................................8-1

Layout diagram..................................................................8-2..8-3

AMP & Power Board

Circuit diagram. ........................................................................9-1

Layout diagram..................................................................9-2..9-3

Tuner board

Circuit diagram .......................................................................10-1

Layout diagram.......................................................................10-2

CD Board

Circuit diagram. ...................................................................... 11-1

Layout diagram.............................................................. 11-2..11-3

MCU Board

Circuit diagram. .............................................................12-1..12-2

Layout diagram..............................................................12-3..12-4

Exploded view diagram ...............................................................13-1

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Sound

• Total Sound Power (RMS): 280 W

• Output Power: 3600W PMPO

• Sound Enhancement: MAX Sound, Dynamic Bass

Boost 3 steps, Digital Sound Control 4 modes,

Incredible Surround, Virtual Ambience Control

• Output power (RMS): 4 x 70W / ch

Loudspeakers

• Main Speaker: 2 way, 2" tweeter, Bass Reflex

Speaker System, 6.5" woofer

• Number of Loudspeakers: 2

Audio Playback

• Loader Type: 3 CD Carousel

• Number of Discs: 3

• Playback Media: CD, CD-R, CD-RW, MP3-CD,

WMA-CD

• USB Direct Modes: Delete, Fast Backward/Fast

Forward, Play/Pause, Previous/Next, Repeat,

Shuffle, Stop

• Disc Playback Modes: Repeat/one/disk/program,

Shuffle Play, 40-Track Programmable

Audio Recording

• Recording Media: USB device

• USB recording modes: Instant record,

Programmed tracks, Schedule radio program,

Single disc, Single track

• USB recording sources: Aux, CD, Tuner,

Microphone in

Tuner/Reception/Transmission

• Auto digital tuning

• Station presets: 40

• Tuner Bands: MW, FM Stereo

• Tuner Enhancements: Auto Store, Easy Set (Plug &

Play)

Connectivity

• Microphone: Dual Microphone sockets

• Other connections: FM Antenna, MW Antenna,

AM Antenna

• USB: USB host

• Audio Connections: RCA Aux in, 3.5mm stereo

line in -MP3 link

Convenience

• Alarms: CD Alarm, USB alarm, Radio Alarm, Sleep

timer

• Clock: On main display

• Display Type: LCD

• Karaoke: MIC volume, Echo control

Accessories

• Included accessories: FM/MW Antenna, *Flat pin

adaptor, Batteries for remote control, AC Power

Cord

• Remote control: 36-key with 2xAAA batteries

• Guarantee booklet: Global version

• User Manual: Spanish, B-Portuguese

• Quick start guide: Spanish, B-Portugues

• Cables: MP3 Line in Cable

Dimensions

• Set dimensions (W x H x D): 265 x 310 x 390 mm

• Packaging dimensions (W x H x D):

900 x 440 x 326 mm

• Weight incl. Packaging: 15.92 kg

• Speaker Depth: 273 mm

• Speaker Height: 358 mm

• Speaker Width: 230 mm

Power

• Power supply: 100-240VAC, 50/60Hz

•

TECHNICAL SPECIFICATION

1 - 2

Type /Versions:

Features

Board in used:

FWM462

Service policy

AC BOARD

MAIN BOARD

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used

/55 /00 /77 89/39/KB/

Feature diffrence

RDS

VOLTAGE SELECTOR

ECO STANDBY - DARK

Type /Versions:

FWM462

/55 /00 /77 89/39/KB/

VERSION VARIATION

C/M

TUNER BOARD

AMP & POWER BOARD

49/

C/M

49/

DISPLAY BOARD

CD BOARD

MCU BOARD

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1-3

LF Generator

e.g. PM5110

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion met

e.g. Sound Technology ST170

DUT

or Universal Test Cassette Fe SBC420 4822 397 30071

LEVEL METER

e.g. Sennheiser UPM550

with FF

filter

S/N and distortion meter

e.g. Sound Technology ST1700B

DUT

Use Audio Signal Disc

(replaces test disc 3)

SBC429 4822 397 30184

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

S/N and distortion meter

e.g. Sound Technology ST1700B

Frame aerial

e.g. 7122 707 89001

Tuner AM (MW,LW)

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.

Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

RF Generator

e.g. PM5326

Ri=50:

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

RF Generator

e.g. PM5326

S/N and distortion meter

e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Ri=50:

Tuner FM

MEASUREMENT SETUP

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1-4

SERVICE AIDS

GB WARNING

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.

ESD

CLASS 1

LASER PRODUCT

Safety regulations require that the set be restored to its original

condition and that parts which are identical with those specified,

be used

Safety components are marked by the symbol !.

Lead free

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Set remains closed!

Play a CD

for at least 10 minutes

playability

ok ?

playability

ok ?

add Info for customer

"SET OK"

check playability

playability

ok ?

check playability

return set

Customer complaint

"CD related problem"

"fast" lens cleaning

3For flap loaders (= access to CD drive possible)

cleaning method 4is recommended

INSTRUCTIONS ON CD PLAYABILITY

2 - 1

Exchange CDM

1-4For description - see following pages

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PLAYABILITY CHECK

For sets which are compatible with CD-RW discs

use CD-RW Printed Audio Disc....................7104 099 96611

TR 3 (Fingerprint)

TR 8 (600µ Black dot) maximum at 01:00

• playback of these two tracks without audible disturbance

playing time for: Fingerprint 10seconds

Black dot from 00:50 to 01:10

• jump forward/backward (search) within a reasonable time

For all other sets

use CD-DA SBC 444A..................................4822 397 30245

TR 14 (600µ Black dot) maximum at 01:15

TR 19 (Fingerprint)

TR 10 (1000µ wedge)

• playback of all these tracks without audible disturbance

playing time for: 1000µ wedge 10seconds

Fingerprint 10seconds

Black dot from 01:05 to 01:25

• jump forward/backward (search) within a reasonable time

CUSTOMER INFORMATION

It is proposed to add an addendum sheet to the set which

informs the customer that the set has been checked

carefully - but no fault was found.

The problem was obviously caused by a scratched, dirty or

copy-protected CD. In case problems remain, the customer

is requested to contact the workshop directly.

The lens cleaning (method 3) should be mentioned in the

addendum sheet.

The final wording in national language as well as the printing

is under responsibility of the Regional Service Organizations.

LIQUID LENS CLEANING

Because the material of the lens is synthetic and coated

with a special anti-reflectivity layer, cleaning must be done

with a non-aggressive cleaning fluid. It is advised to use

“Cleaning Solvent

The actuator is a very precise mechanical component and

may not be damaged in order to guarantee its full function.

Clean the lens gently (don’t press too hard) with a soft and

clean cotton bud moistened with the special lens cleaner.

The direction of cleaning must be in the way as indicated in

the picture below.

Before touching the lens it is advised to clean the

surface of the lens by blowing clean air over it.

This to avoid that little particles make scratches on

the lens.

INSTRUCTIONS ON CD PLAYABILITY

2 - 2

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BLOCK DIAGRAM

3-1 3-1

CD SERVO

BU9543

BX8800

128pin QFP

INPUT

RC5/RC6 CODE

LCD

ET8862&

KEY PART

MAIN L/R

INPUT

SENSOR

16M SDRAM

8M SERIAL

FALSH

SST29VF080B

PICK UP

MOTOR

ADC

WM8782

3CDC

DRIVER IC

FAN8100N

MUX

74LVC157

AUX

TUNER

SI4730

MICRO

PHONE

USB/SD

MOTOR DRIVER

BA5826

IIC

MUL-L/R

IIC

PCM

BCK,LRCK

,DATE

PCM

CD L/R

TUNER L/R

CONTROL DATA

CD PCM

BCK,LRCK,

DATE

AMP

STK-433-

870

FUNCTION IC

TDA7468D

3CD LOADER

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WIRING DIAGRAM

4-1 4-1

DISPLAY BOARD

KEY1 BOARD

MAIN BOARD

AC BOARD AMP BOARD

MCU BOARD

CD BOARD

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DISMANTLING INSTRUCTIONS

1) Loosen 4 screws to remove the Cover Top of the set.

2) Loosen 2 screws to remove the Panel Left and 2 screws to

remove the Panel Right of the set.

3) Slide out the CDC Tray as shown in the diagram below with

the help of a flat head screw driver.

Dismantling of the CDC Module and Front Panel

Remove CDC Module

4) Remove the Cover Tray CDC as indicated.

Sliding Out The CDC Tray

Front View CDC

Remove Cover Tray CDC

5) Loosen 2 screws A and 2 screws B to remove the CDC

Module as indicated.

6) Remove 2 screws at the bottom to separate the

Front Panel Assembly from the Plate Bottom.

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Dismantling of Rear Portion

Dismantling of the PCB Board

1)Remove 2 screws C as indicated to loosen the Tuner Board.

3)Remove 6 screws E&I as indicated to loosen the Power Board.

4)Remove 3 screws F as indicated to loosen the Bottom Cabinet.

5)Remove 2 screws G as indicated to loosen the Front Cabinet.

2)Remove 4 screws D&H as indicated to loosen the Main Board.

3)Remove 2 screws M as indicated to loosen the USB Board.

2)Remove 27 screws K&L as indicated to loosen the KEY1&2 Board.

1)Remove 4 screws J as indicated to loosen the AMP Board.

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