Philips-CED-228-CED-228-X-Service-Manual电路原理图.pdf

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1、Version 1.4CED228/98/583141 785 34304Car Entertainment SystemCED228X/78Published by LX 1118 Service Audio Subject to modificationCopyright 2010 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem

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

3、ly diagram.5-1Main boardCircuit diagram .6-1.6-3Layout diagram.6-4.6-5Key boardCircuit diagram .7-1Layout diagram.7-2.7-3SK & SD & Moto boardCircuit diagram .8-1Layout diagram.8-2.8-4Exploded view diagram .9-1Mechanical parts list.9-2Electrical parts list.10-1.10-2Revision list.11-1TunerFrequencyran

4、ge-FM87.5 - 108.0 M H zsearch and 50kHz perFrequencyrange522 - 1620 KHzUsable sensitivity-FM 8 uVUsable sensitivity50uVLCDScreen sizeDisplay resolution 320 x 234 dotsContrast ratio 350Brightness 220 cd/m 2GeneralPower supplynegative groundFuse 15 ASuitable speakerimpedance4 - 8 Maximum poweroutput50

5、 W x 4 channelsContinuous poweroutput24 W x 4 channelsPre-Amp outputvoltage 1 kH z,0 dB,10 kSubwooferoutputvoltageAux-in level 500 m V188 x 58 x 193m mWeight 1.7 kgSystem D VD / CD audio / MP3 systemFrequency response 20 Hz - 20kHzSingal/noise ratio 75dBTotal harmonicdistortionLessthan 1%Channel sep

6、aration 55dBVideosignalformat N TSC/PAL/AU TOVideooutput 1 +/-0.2VTECHNICAL SPECIFICATION1 - 2Type /Versions:FeaturesBoard in used:CED228Service policySK BOARDMAIN BOARD* TIPS : C - Component Lever Repair.M - Module Lever Repair - Used78/Feature diffrenceRDS & DABVOLTAGE SELECTORECO STANDBY - DARK T

7、ype /Versions:/5889/78/VERSION VARIATION89/C/MC/MMOTO BOARDPANEL BOARDC/MC/MC/MCED228MMMMMC/MC/MC/MC/MC/M/58SD BOARDDisc player1-3LF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metee.g. Sound Tec

8、hnology 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. PM253

9、4DUTS/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 least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).RF

10、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 SET

11、UP1-4SERVICE 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

12、.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 fo

13、r 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 recommended

14、INSTRUCTIONS 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 di

15、sturbanceplaying 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 au

16、dible 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 set whichinforms the customer that the set has been checkedcarefully -

17、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

18、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 actua

19、tor 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.B

20、efore 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 - 2MAIN BOARDSK BOARDKEY BOARD J204J502J501J302J303J201J301J206SD BOARDJ701MOTO BOARDSP+1SP-1SL+1SL-1LIMIT1

21、GND1LOAD+1LOAD-1WHITEREDBLACKREDORANGEBROWNGREENYELLOWORANGEYELLOWSP MOTOSLMOTODET SWDVD DECK DL-C86D1WIRING DIAGRAM3 -1MOTO DRIVER SA5888OPTICAL PICKUPDL-C86D1DVD-DSPSPHE8202TQEEPROM24C02FLASH 32M(bit)SDROM2M*16Bit*4BanksSD/MMC CORDUSB PORTSD/USD DETMCUSTM8AH6189KEY/RCA/DTFT DRIVERAV268DT30C17 TFT

22、DISPLAYSPIA/DDISC IN/OUT/DETDISCPWMAM/FM TUNER MODULCF111LVD-150MRDS DECORDSC6579ANTVOL/EQTDA7419VIDEO SWITCHBA7654MP3-LINKINAUDIOVIDEO/INVIDEO AMP.BAT623LINE OUTVIDEO-OUT1VIDEO-OUT2FL-OUTFR-OUTRL-OUTRR-OUTPOWERTDA7386FLFRRLRRPOWERSUPPLYTPS5433114.4V14.4V+5VSET BLOCK DIAGRAM4-1 5-1 5-1DISASSEMBLY IN

23、STRUCTIONSDismantling of the car audio system and the front panel 1)Press to open the panel,then push the right side panel toward the left side to disengage it from the chassis.2)Remove 1 screw A and 1 screw B as indicated. 3)Remove the top and bottom lid as showin in the picture below with the help

24、 of a flat head screw driver.4)Remove 2 screws C and 2 screws D as indicated to loosen the DVD mechanism.5)Remove 4 screws E as indicated to loosen the main board. ABFLAT HEAD SCREW DRIVECDE6)Remove 6 screws F as indicated to loosen the front panel. CAR AUDIO SYSTEMFBACK PANELFRONT PLATE + KEY BOARDFRONT PANELTRIM PLATE6-1 6-1CIRCUIT DIAGRAM - MAIN BOARDPART 1