Philips-FWM-153-Service-Manual电路原理图.pdf

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1、Version 1.1FWM153/553141 785 33511MP3 Mini Hi-Fi SystemFWM153X/78Published by LX 0909 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.CONTENTS2-1. noitacificeps lacinhceTService measurement setup.1-3 Service aids .1-4 Instructions on CD playability .2-1.2-2Disassembly diagram. .3-1Block diagram.4-1Wirin

3、g diagram .4-2CD boardCircuit diagram .5-1Layout diagram.5-2.5-3Display boardCircuit diagram .6-1Layout diagram.6-2.6-3AMP boardCircuit diagram .7-1Layout diagram.7-2.7-3Exploded view diagram .8-1Mechanical parts list.8-2Electrical parts list.9-1.9-2 FWM153/77TunerFMTuning Range 87.5 - 108 MHzTuning

4、 grid 50 KHzSensitivity- Mono, 26dB S/N Ratio- Stereo, 46dB S/N Ratio45 dBAMTuning Range 530 - 1700 kHzSpeakersSpeaker Impedance 8ohmGeneral informationAC power 110 - 127V/220 - 240V, 50/60HzDimensions- Main Unit (W x H x D)- Speaker Box (W x H x D)220 x 290 x 271 mm189 x 290 x 175mmWeight- With Pac

5、king- Main Unit- Speaker Box7.9 kg3.8 kg2 x 1.7 kgSupported MP3 disc formatsISO9660, JolietMaximum title number: 511 (dependingon file name length)Maximum album number: 511Directory nesting up to a maximum of 8 levelsAmplifierRated Output Power 2X20W RMSFrequency Response 63 - 16000 Hz, 3dBSignal to

6、 Noise Ratio 62dBDiscLaser Type SemiconductorDisc Diameter 12cm/8cmSupport Disc CD-DA, CD-R,CD-RW, MP3-CD,WMA-CDAudio DAC 24Bits / 44.1kHzTotal HarmonicDistortion 65dBATECHNICAL SPECIFICATION1 - 21-3LF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METERe.g.

7、 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

8、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 Faradays cage.Use a bandpass filter (or at le

9、ast 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 distur

10、bance 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

11、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

12、 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 lo

13、aders (= 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 (600 Black

14、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 (600 Black dot) maximum at 01:15TR 19 (F

15、ingerprint)TR 10 (1000 wedge) playback of all these tracks without audible disturbanceplaying time for: 1000 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 se

16、t 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

17、 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-aggre

18、ssive 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 direct

19、ion 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 - 2DISASSEMBLY DIAGRAM VIEW3 - 1 3 - 1

20、Loosen 8 screws PT312 in both sides. a.Plug in the 220V AC power cord , set the menu to “CD“ function,and press “STANDBY-ON“ button , Press “OPEN/CLOSE“to open CD door.b.Pull out CD doorc.Press “OPEN/CLOSE“ button to close the CD tray, power off the mainset and unplug the AC power cord.4) Remove top cabinet. 5) Loosen 2 screws PWT3 to remove CD tray.6) Loosen 12 screws T38 and 3 screws PT3x8 to remove Main board.CD DOOR123456871234563) Loosen 6 screws PT312 in rear cabinet .12634779121110（ 1）5（ 3）（ 2）SET BLOCK DIAGRAM4 - 1 4 - 1SET WIRING DIAGRAM4 - 2 4- 25 - 15 - 1CIRCUIT DIAGRAM - CD BOARD