Philips-FWM-416-X-Service-Manual电路原理图.pdf

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1、Version 1.0FWM416X/783141 785 34050MP3 Mini Hi-Fi SystemFWM416/55Published by LX 0917 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 tr

2、ansmitted, 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 .2-1.2-2Wiring diagram .3-1Block diagram .4-1Disassemb

3、ly diagram. .5-1.5-2Main boardCircuit diagram .6-1 Layout diagram .6-2.6-3AMP/Power boardCircuit diagram .7-1 Layout diagram .7-2.7-3CD boardCircuit diagram .8-1Layout diagram .8-2.8-3USB boardCircuit diagram .9-1 Layout diagram .9-2Front/MCU Board Circuit diagram. .10-1Layout diagram .10-2.10-3Powe

4、r BoardCircuit diagram. .11-1Layout diagram .11-2Exploded view diagram .12-1Mechanical parts list .12-1.12-2Electrical parts list.13-1.13-4TunerTuning range FM: 87.5 - 108MHzAM: 531 - 1602kHz (9kHZ);530 - 1700kHz (10kHZ)Tuning grid 50KHz/100KHz (FM);9KHz/10KHz (AM)Number of presets40 (FM + AM)FM 75o

5、hm wireAM Loop antennaSpeakersSpeaker Impedance 6ohmWoofer 1 x 5Tweeter 1 x 1.5Dimensions (W x H x D)207 x 309 x 214mmWeight 2.8kg eachGenaralAC power 110 - 127/220 - 240V, 50/60HzOperation powerconsumption110WStandby powerconsumption20WDimensionsMain Unit (W x H x D)265 x 310 x 403mmWeight (without

6、 speakers) 5.9kgAmplifierTotal output power 200W RMSSignal-to-noise ratio 60dB A (IEC)Frequency response 50 - 16000HzAUX input 2000mVDiscLaser type SemiconductorDisc diameter 12cm/8cmSupport disc CD-DA, CD-R, CD-RW, MP3-CD, WMA-CDAudio DAC 24Bits / 44.1kHzTotal harmonicdistortion0.6%Frequencyrespons

7、e50Hz -16kHz (44.1kHz)Signal-to-noiseratio60dBATECHNICAL 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 SBC4

8、20 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 ST

9、1700BFrame aeriale.g. 7122 707 89001Tuner AM (MW,LW)To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays 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. 7

10、122 707 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 se

11、mi-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.ESD

12、CLASS 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

13、?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

14、 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 (600 Black dot) maximum at 01:00 playback of these two tracks without audible disturbanceplaying time for: Fingerprint 10secondsBlac

15、k 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 (600 Black dot) maximum at 01:15TR 19 (Fingerprint)TR 10 (1000 wedge) playback of all these tracks without audible disturbanceplaying time for: 1000 wedge 10seco

16、ndsFingerprint 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 cau

17、sed 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 Region

18、al 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 no

19、t 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 thesu

20、rface of the lens by blowing clean air over it.This to avoid that little particles make scratches onthe lens.INSTRUCTIONS ON CD PLAYABILITY2 - 2SET WIRING DIAGRAM3-1LINE INSET BLOCK DIAGRAM4-15 - 1 5 - 15-2 5-2DEFGIJK L1)Remove 2 screws C as indicated to loosen the Front Cabinet.2)Remove 2 screws D

21、as indicated to loosen the Tuner Module.3)Remove 9 screws E&I as indicated to loosen the Main Board.4)Remove 8 screws G&H as indicated to loosen the AMP Board.5)Remove 3 screws F as indicated to loosen the Bottom Cabinet.C H1)Remove 14 screws J as indicated to loosen the Front 1 Board.2)Remove 8 screws K as indicated to loosen the Front2 Board.3)Remove 2 screws L as indicated to loosen the USB Jack Board.Dismantling of Rear portionDismantling of the PCB Board