Philips-FWM-603-Service-Manual电路原理图.pdf

Version 1.0FWM603X/783141 785 33940MP3 Mini Hi-Fi SystemFWM603/55Published by LX 0914 Service Audio Subject to modification© Copyright 2009 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transmitted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.CONTENTSTechnical specification .1-2 Service measurement setup.1-3 Service aids .1-4 Instructions on CD playability .2-1.2-2Block diagram .3-1Wiring diagram .4-1Disassembly diagram. .5-1.5-2Main boardCircuit diagram .6-1.6-2 Layout diagram .6-3.6-4CD boardCircuit diagram .7-1 Layout diagram .7-2.7-3MCU boardCircuit diagram .8-1Layout diagram .8-2.8-3Display boardCircuit diagram .9-1 Layout diagram .9-2.9-3AMP Board Circuit diagram. .10-1Layout diagram .10-2.10-3Tuner BoardCircuit diagram. .11-1Layout diagram .11-2Exploded view diagram .12-1Mechanical parts list .12-2.12-3Electrical parts list.13-1.13-3SpeakersSpeaker Impedance 6ohmWoofer 2 x 5.25”Tweeter 2 x 1.75”Dimensions(W x H x D)230 x 345 x 279mmWeight 3.58kg eachSubwooferSpeaker impedance 6ohmSpeaker driver 8”Output power 160WDimensions(W x H x D)270 x 345 x 396mmWeight 6.28kgGeneral informationAC power 110 - 127/220 - 240V, 50/60HzOperation powerconsumption100WStandby powerconsumption67dB A (IEC)Aux input 1500mV/2000mVDiscLaser type SemiconductorDisc diameter 12cm/8cmSupport disc CD-DA, CD-R, CD-RW,MP3-CD, WMA-CDAudio DAC 24Bits / 44.1kHzTotal harmonicdistortion75dBATunerTuning range FM: 87.5 - 108MHz;AM: 531 - 1602kHz (9KHz);530 - 1700KHz (10KHz)Tuning grid 50KHz (FM);9KHz/10KHz (AM)Number of presets40 (FM + AM)FM 75ohm wireAM loop antennaTECHNICAL SPECIFICATION1 - 21-3LF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metee.g. Sound Technology ST170LRDUTor Universal Test Cassette Fe SBC420 4822 397 30071LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BLRDUTCDUse Audio Signal Disc(replaces test disc 3)SBC429 4822 397 30184Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTS/N and distortion metere.g. Sound Technology ST1700BFrame aeriale.g. 7122 707 89001Tuner 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. PM5326Ri=50:Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTRF Generator e.g. PM5326S/N and distortion metere.g. Sound Technology ST1700BUse a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).Ri=50:Tuner FMMEASUREMENT SETUP1-4SERVICE AIDSGB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with resistance.Keep components and tools also at thispotential.ESDCLASS 1LASER PRODUCTGBSafety regulations require that the set be restored to its originalcondition and that parts which are identical with those specified,be usedSafety components are marked by the symbol!.Lead freeSet remains closed!NYPlay a CD for at least 10 minutesYplayabilityok ?Nplayabilityok ?add Info for customer“SET OK“check playabilityNYplayabilityok ?check playabilitycheck playabilityreturn setCustomer complaint“CD related problem“fast“ lens cleaning123For flap loaders (= access to CD drive possible)cleaning method 4 is recommendedINSTRUCTIONS ON CD PLAYABILITY2 - 1Exchange CDM1 - 4 For description - see following pages1PLAYABILITY CHECKFor sets which are compatible with CD-RW discsuse CD-RW Printed Audio Disc.7104 099 96611TR 3 (Fingerprint)TR 8 (600µ Black dot) maximum at 01:00 playback of these two tracks without audible disturbanceplaying time for: Fingerprint 10secondsBlack dot from 00:50 to 01:10 jump forward/backward (search) within a reasonable timeFor all other sets use CD-DA SBC 444A.4822 397 30245TR 14 (600µ Black dot) maximum at 01:15TR 19 (Fingerprint)TR 10 (1000µ wedge) playback of all these tracks without audible disturbanceplaying time for: 1000µ wedge 10secondsFingerprint 10secondsBlack dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time2CUSTOMER INFORMATIONIt is proposed to add an addendum sheet to the set whichinforms the customer that the set has been checkedcarefully - but no fault was found.The problem was obviously caused by a scratched, dirty orcopy-protected CD. In case problems remain, the customeris requested to contact the workshop directly. The lens cleaning (method 3) should be mentioned in theaddendum sheet.The final wording in national language as well as the printingis under responsibility of the Regional Service Organizations.4LIQUID LENS CLEANINGBecause the material of the lens is synthetic and coatedwith a special anti-reflectivity layer, cleaning must be donewith a non-aggressive cleaning fluid. It is advised to use“Cleaning Solvent The actuator is a very precise mechanical component andmay not be damaged in order to guarantee its full function.Clean the lens gently (dont press too hard) with a soft andclean cotton bud moistened with the special lens cleaner.The direction of cleaning must be in the way as indicated inthe picture below.Before touching the lens it is advised to clean thesurface of the lens by blowing clean air over it.This to avoid that little particles make scratches onthe lens.INSTRUCTIONS ON CD PLAYABILITY2 - 2SET BLOCK DIAGRAM3-13CDC CD Loader PICK-UP MECHA SANYO : DA-11VF 4 CH MOTOR DRIVER (BA5826) ROHM RF AMP+SSP+DSP (BU9543) PLL Tuner Si4730/4731 MCS LOGIC BX8805 MP3/WMA En/De + MCU +USB/CARD SOUND CONTROL SW+VOL+EQ (TDA7468 ) Mid power amp TDA8920×1AUX DISPLAY VFD USB/SDMMC NOR FLASH SI636165 SDRAM 16Mbit Port Expander74HC4094×2VFD DRIVER ET8862 Spectrum analyzers LED controller for Light Box (May use) MUX 74VC157 ADC WMA8781 Karaoke(CD3699) High powerAMP TDA8920×1LRLRSUBWOFFER amp TDA8920×1TIME/CLOCK(HT1381) RECORD TIME(74LVC2G04) SET WIRING DIAGRAM4-1Remove CDC ModuleSliding Out The CDC TrayFront View CDCRemove Cover Tray CDCDISASSEMBLY DIAGRAMDismantling of the CDC Module and Front Panel1) Loosen 17 screws to remove the Cover Top of the set.2) Slide out the CDC Tray as shown in the diagram below with the help of a flat head screw driver.3) Remove the Cover Tray CDC as indicated.4) Loosen 2 screws A and 2 screws B to remove the CDC Module as indicated.5) Remove 2 screws at the bottom to separate the Front Panel Assembly from the plate bottom.5-1 5-1HCD EF1)Remove 3 screws C as indicated to loosen the Tuner Module.2)Remove 9 screws D&G as indicated to loosen the Main Board.3)Remove 8 screws E&H as indicated to loosen the AMP Board.4)Remove 3 screws F as indicated to loosen the Bottom Cabinet.5-2 5-21) Remove 14 screws I as indicated to loosen the Display Board.2) Remove 11 screws J as indicated to loosen the Key Board.3) Remove 2 screws K as indicated to loosen the USB jack Board.Dismantling of the PCB BoardDismantling of Rear PortionHGJKI