Philips-FWM-998-Service-Manual电路原理图.pdf

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1、Version 1.0FWM9983141 785 35430Mini Hi-Fi System-/55/BKPublished by LX 1030 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 transmitted,

2、 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 diagram .4

3、-1 Disassembly diagram. .5-1.5-2Main boardCircuit diagram .6-1 Layout diagram .6-2.6-3Display boardCircuit diagram .7-1.7-2 Layout diagram .7-3.7-4USB/SD boardCircuit diagram .8-1 Layout diagram .8-2AMP BoardCircuit diagram. .9-1.9-2Layout diagram .9-3.9-4CD boardCircuit diagram .10-1Layout diagram

4、.10-2.10-3MCU BoardCircuit diagram. .11-1Layout diagram .11-2.11-3Exploded view diagram .12-1Sound Output Power: 14000W PMPO Total Sound Power (RMS): 1300 W Sound Enhancement: MAX Sound, Dynamic BassBoost 3 steps, Incredible Surround, Digital SoundControl 4 modes, Virtual Ambience ControlLoudspeaker

5、s Main Speaker: Bass Reflex Speaker System, 2 way,2“ tweeter Subwoofer type: Passive Subwoofer driver: 10“ woofer Number of Loudspeakers: 6Audio Playback Loader Type: 3 CD Carousel Number of Discs: 3 Playback Media: CD, CD-R, CD-RW, MP3-CD, WMA-CD, SD Card, USB flash drive Disc Playback Modes: 40-Tr

6、ack Programmable,Repeat/one/disk/program, Shuffle Play USB Direct / SD Modes: Fast Backward/FastForward, Play/Pause, Previous/Next, Repeat,ShuffleAudio Recording Recording Media: USB device, SD/MMC card USB recording sources: CD, Tuner, Aux, Microphone in, SD Card SD card recording sources: Aux, CD,

7、 Microphonein, Tuner, USB device USB / SD card recording modes: Delete, Instantrecord, Progammed tracks, Schedule radioprogram, Single disc, Single trackTuner/Reception/Transmission Auto digital tuning Station presets: 40 Tuner Bands: FM, MW Tuner Enhancements: Auto Store, Easy Set (Plug &Play)Conne

8、ctivity Audio Connections: RCA Aux in, 3.5mm stereoline in -MP3 link USB: USB host Microphone: Dual Microphone sockets Other connections: FM Antenna, MW AntennaConvenience Alarms: CD Alarm, Radio Alarm, USB alarm, Sleeptimer Clock: On main display Display Type: FTD Karaoke: MIC volume, Echo controlA

9、ccessories Remote control: 36-key with 2xAAA batteries User Manual: Spanish, B-Portuguese Guarantee booklet: Global version Included accessories: FM/MW Antenna, Batteriesfor remote control, *Flat pin adaptor Quick start guide: Spanish, B-Portuguese Cables: MP3 Line in cableDimensions Set dimensions

10、(W x H x D): 265 x 359 x 353 mm Main speaker dimensions (W x H x D):263 x 447 x 360 mm Subwoofer dimensions (W x H x D):337 x 491 x 360 mm Surround Speaker dimensions (W x H x D):208 x 359 x 301 mm Weight incl. Packaging: 51.57 kg Packaging dimensions (W x H x D):1085 x 562 x 786 mmPower Power suppl

11、y: 100-240VAC, 50/60HzTECHNICAL SPECIFICATION1 - 2Type /Versions:FeaturesBoard in used:FWM998Service policyMAIN BOARD* TIPS : C - Component Lever Repair.M - Module Lever Repair- Used/55 /0089/39/KB/Feature diffrenceRDSVOLTAGE SELECTORECO STANDBY - DARKType /Versions:FWM998/55 /00 /7789/39/KB/VERSION

12、 VARIATIONAMP BOARD49/C/MC/MC/MC/MC/MCC/MC/MC/MC/MC/MC/M49/DISPLAY BOARDCD BOARDMCU BOARDUSB BOARDSD BOARD C/M C/M1-3LF 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 ST170

13、LRDUTor 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 d

14、istortion 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 least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).RF Generator e.g

15、. 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

16、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 compone

17、nts 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

18、 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

19、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 dot) maximum at 01:00 playback of these two tracks without audible disturbanceplay

20、ing 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 (Fingerprint)TR 10 (1000 wedge) playback of all these tracks without audible disturb

21、anceplaying 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 set whichinforms the customer that the set has been checkedcarefully - but no fault

22、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 printi

23、ngis 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

24、 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 touchin

25、g 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 - 2BLOCK DIAGRAM3-1 3-1CD SERVO BU9543MLC3895 144pin QFPINPUTRC5/RC6 CODEVFDPT6315& KEY PARTINPUTSENSOR16M SDRAM8M SERIA

26、L FALSH SST29VF080BPICK UPMOTORADC WM87823CDCDRIVER ICTDA7073AMUX74LVC157AUXTUENRPACK MICROPHONEUSB/SDMOTOR DRIVER BA5826IICMUL-L/RIICPCMBCK,LRCK,DATEPCMCD L/RTUNER L/RCONTROL DATACD PCM BCK,LRCK,DATEFUNCTION IC TDA7468D3CD LOADERRLRRTDA8954MAIN L/RTDA8954FRSUB/LTDA8954SUB/RFL2*250W2*150W2*250WKEY C

27、ONTROL BOARDSOUND KEY CONTROL BOARDVOLUME CONTROL BOARDVFD BOARDMCU BOARDCD BOARDAMP BOARDMAIN BOARDCLOSE/OPEN-MOTOR BOARDMOTOR BOARDPOWER SUPPLYPOWER CONNECTWIRING DIAGRAM4-1 4-1Dismantling of Rear Portion1)Remove 9 screws A and 14 screws B/C as indicated to loosen the outer plate.2)Remove 3 screws

28、 D as indicated to loosen the Rear portion .5-1 5-1A B CD1)Slide out the CDC Tray as shown in the diagram below with the help of a flat head screw driver.Dismantling of the CDC Module2)Remove the Cover Tray CDC as indicated.3)Loosen 2 screws E and 2 screws F to remove the CDC Module as indicated.Sli

29、ding Out The CDC TrayRemove Cover Tray CDCFRear PortionEDISASSEMBLY INSTRUCTIONSDismantling of the PCB Board1)Remove 2 screws A and 3 screws E&F as indicated to loosen the Main Board.2)Remove 2 screws B as indicated to loosen the Tuner Module.3)Remove 8 screws C and 4 screws G as indicated to loosen the Amp Board.4)Remove 4 screws D as indicated to loosen the AC Board.AB C EFDGH5)Remove 6 screws H and 3 PCB Spacer I as indicated to loosen the Switch Power Board.6)Remove 9 screws J as indicated to loosen the Display Board.7)Remove 12 screws K as indicated to loosen the Volume Board.JIK5-2 5-2