Philips-FWM-462-Service-Manual电路原理图.pdf

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1、Version 1.0FWM4623141 785 35290280W Mini Hi-Fi System-/55/77/BKPublished by LX 1023 Service Audio Subject to modification Copyright 2010 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or tran

2、smitted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.CONTENTSTechnical specification .1-2Version variation .1-2Service measurement setup.1-3 Service aids .1-4 Instructions on CD playability .2-1.2-2Block diagram .3-1Wiring di

3、agram .4-1 Disassembly diagram. .5-1.5-2Main boardCircuit diagram .6-1 Layout diagram .6-2.6-3AC boardCircuit diagram .7-1 Layout diagram .7-2.7-3Display boardCircuit diagram .8-1 Layout diagram .8-2.8-3AMP & Power BoardCircuit diagram. .9-1Layout diagram .9-2.9-3Tuner boardCircuit diagram .10-1Layo

4、ut diagram .10-2CD BoardCircuit diagram. .11-1Layout diagram .11-2.11-3MCU BoardCircuit diagram. .12-1.12-2Layout diagram .12-3.12-4Exploded view diagram .13-1Sound Total Sound Power (RMS): 280 W Output Power: 3600W PMPO Sound Enhancement: MAX Sound, Dynamic BassBoost 3 steps, Digital Sound Control

5、4 modes,Incredible Surround, Virtual Ambience Control Output power (RMS): 4 x 70W / chLoudspeakers Main Speaker: 2 way, 2“ tweeter, Bass ReflexSpeaker System, 6.5“ woofer Number of Loudspeakers: 2Audio Playback Loader Type: 3 CD Carousel Number of Discs: 3 Playback Media: CD, CD-R, CD-RW, MP3-CD, WM

6、A-CD USB Direct Modes: Delete, Fast Backward/FastForward, Play/Pause, Previous/Next, Repeat,Shuffle, Stop Disc Playback Modes: Repeat/one/disk/program,Shuffle Play, 40-Track ProgrammableAudio Recording Recording Media: USB device USB recording modes: Instant record,Programmed tracks, Schedule radio

7、program,Single disc, Single track USB recording sources: Aux, CD, Tuner,Microphone inTuner/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

8、: FM Antenna, MW Antenna,AM Antenna USB: USB host Audio Connections: RCA Aux in, 3.5mm stereoline in -MP3 linkConvenience Alarms: CD Alarm, USB alarm, Radio Alarm, Sleeptimer Clock: On main display Display Type: LCD Karaoke: MIC volume, Echo controlAccessories Included accessories: FM/MW Antenna, *F

9、lat pinadaptor, Batteries for remote control, AC PowerCord 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 CableDimensions Set dimensions (W x H x D): 265 x 310 x 390 mm Packa

10、ging 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 mmPower Power supply: 100-240VAC, 50/60HzTECHNICAL SPECIFICATION1 - 2Type /Versions:FeaturesBoard in used:FWM462Service policyAC BOARDMAIN BOARD* TIPS : C -

11、 Component Lever Repair.M - Module Lever Repair- Used/55 /00 /7789/39/KB/Feature diffrenceRDSVOLTAGE SELECTORECO STANDBY - DARKType /Versions:FWM462/55 /00 /7789/39/KB/VERSION VARIATIONC/MC/MTUNER BOARDAMP & POWER BOARD49/C/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/MC/M49/DISPLAY BOARDCD BO

12、ARDMCU BOARD1-3LF 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-filte

13、rS/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 at

14、mospheric 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. 7122 707 48001LF Voltmetere.g. PM2534DUTRF Generator e.g. PM5326

15、S/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).

16、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 b

17、e 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

18、?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 set

19、s 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 10secondsBlack dot from 00:50 to 01:10 jump forward/backward (search) within

20、 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 10secondsFingerprint 10secondsBlack dot from 01:05 to 01:25 jump forw

21、ard/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

22、 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 mater

23、ial 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

24、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 th

25、at little particles make scratches onthe lens.INSTRUCTIONS ON CD PLAYABILITY2 - 2BLOCK DIAGRAM3-1 3-1CD SERVOBU9543BX8800128pin QFPINPUTRC5/RC6 CODELCDET8862&KEY PARTMAIN L/RINPUTRCSENSOR16M SDRAM8M SERIALFALSHSST29VF080BPICK UPMOTORADCWM87823CDCDRIVER ICFAN8100NMUX74LVC157AUXTUNERSI4730MICROPHONEUS

26、B/SDMOTOR DRIVERBA5826IICMUL-L/RIICPCMBCK,LRCK,DATEPCMCD L/RTUNER L/RCONTROL DATACD PCM BCK,LRCK,DATEAMPSTK-433-870FUNCTION IC TDA7468D3CD LOADERFLFRWIRING DIAGRAM4-1 4-1DISPLAY BOARDKEY1 BOARDMAIN BOARDAC BOARDAMP BOARDMCU BOARDCD BOARDDISMANTLING INSTRUCTIONS1) Loosen 4 screws to remove the Cover

27、Top of the set.2) Loosen 2 screws to remove the Panel Left and 2 screws toremove the Panel Right of the set.3) Slide out the CDC Tray as shown in the diagram below withthe help of a flat head screw driver.Dismantling of the CDC Module and Front PanelRemove CDC Module4) Remove the Cover Tray CDC as i

28、ndicated.Sliding Out The CDC TrayFront View CDCRemove Cover Tray CDC5) Loosen 2 screws A and 2 screws B to remove the CDCModule as indicated.6) Remove 2 screws at the bottom to separate theFront Panel Assembly from the Plate Bottom.Dismantling of Rear PortionDismantling of the PCB Board1)Remove 2 sc

29、rews 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.CFDE GHIJKL M