Philips-MC-127-Service-Manual(1) 电路图 维修手册.pdf

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1、Version 1.0 MC127 3141 785 36420 CD playback Compact design Micro Hi-Fi System -/05/12 Published by SW 1125 Service Audio Subject to modification Copyright 2011 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in

2、a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. CONTENTS Technical specification and disassembly diagrams.1 Service and safety instructions.2 Block diagram .3-1 Wiring diagram .4-1 DISPLAY+ MA

3、IN+ TUNER+ LINE IN board Circuit diagram.5-1.5-3 Layout diagram .5-4 Power board Circuit diagram .6-1 Layout diagram .6-2 Exploded view diagram .7-1 Revision list .8-1 RadioFans.CN 收音机爱 好者资料库 SET SPECIFICATION 2011-04-01 1 CDSM WITH 2 MC127 3 General description: MC127- PORTABLE CD SOUNDMACHINE TUNE

4、R 1 LIFETIME : 5 YEARS (ACC. TO UAN-D1611) 2 PERFORMANCE CLASSES : TUNER SUPPLY, AMPLIFIER SPEAKER BOXES RECORDER CLOCK CD DCC TELEPHONE REC. PLAYER I x x x 3 II x 4 III 5 SAFETY REQUIREMENTS: IEC 60065:2001(SEVENTH EDITION)+AI:2005-SAFETY 6 RADIATION, IMMUNITY REQUIREMENTS: (EMC) EN55013:2001+A1:20

5、03+A2:2006;EN55020:2007 EN61000-3-2:2006+A2:2009;EN61000-3-3:2008 EN61000-4-5:2006; EN61000-4-11:2004 7 CLIMATIC REQUIREMENTS: (acc. to UAN-D1590) All climates: -10 C till +50 C (Functional); Set has to be pre-conditioned for 2 hour, except CD function 8 For all measurements: 25 C 9 POWER SUPPLY: MA

6、INS (AC) operation DC (int. or ext.) operation / Backup Buffer Voltage selection: Battery type: 10 Selection: See table below 11 Frequency: External DC: No 12 POWER CONSUMPTION: Standby: Less than 1W Standby: 13 Maximum: 12W Maximum: 14 General: Q and R according to production division rules : Q 1%

7、(Major), Q 4% (Minor) Measured according to: R 3% (CE52) DERIVED VERSIONS: APPROBATION 15 Versio n Voltage on typeplate Tolerance Frequency Tuner 93 240V, 50Hz 10% (216V 264V); 50Hz FM, UK REMARKS: 16 TUNER PART TECHNICAL description: RadioFans.CN 收音机爱 好者资料库 SET SPECIFICATION 2011-04-01 1 CDSM WITH

8、2 MC127 3 (circuitry) FM (active components) FM RF SI4704 SI4704 1 IF SI4704 SI4704 2 Detector QD 3 Decoder SI4704 4 GENERAL part: WAVE RANGE TOLERANCES TUNING 5 FM 87.5MHz - 0.3 MHz 1MHz6 108MHz + 0.5 MHz 1MHz7 8 9 10 AERIAL: FM telescope - 540 mm 12 FM wire : N/A Execution - Rotational 180 13 INDI

9、CATORS: Pointer stroke: Execution pointer: 14 Knob indication over: Field Strength: 15 ELECTRICAL DATA: AM: nom. limit FM: nom. limit 16 -3dB limiting point 20 26 dBf 17 Amplification reserve 0 -4 dB 18 AFC holding range - 19 Distortion (RF 1mV, f 67.5kHz) 1 7 % 20 Stereo -46dB quieting 48 52 21 22

10、Cross-talk (RF 1mV, f 40kHz, 1kHz) 25 20 dB 23 IF 24 wave range Sensitivity for 50mW noise limited sensitivity (26dB) Image rejectio n IF rejectio n large signal FM nom. 18 24 55 122dB f 25 lim. 22 20 50 111dB f 26 27 28 29 30 31 unit V/m V dBf dBV/m dBf dB dB dB mV/m REMARKS: SUPPLY, AF-AMPLIFIER S

11、hort circuit YES 8 Public address No 9 INDICATORS: Output power or VU-meter No 11 Frequency response No 12 Low power (battery) No 13 14 ELECTRICAL DATA: TONE/EQUALIZER/DBB DSC Balance control No 15 Mechanical noise (ISO 1996) 16 Noise overall (ISO) 17 Channel difference at -46dB Type: 3 dB 18 Hum (v

12、ol.max.-20dB to vol.min.) Limit: 2mV 19 Residual noise(volume min) Limit: 2mV 20 DBB on (Vol.max.-20dB): 100Hz, +6dB (2dB) w.r.t. 1kHz at DBB on DBB has no dynamic, fixed to 6dB 21 DBB off (Vol.max.-20dB): 100Hz, -2dB (2dB) w.r.t. 1kHz at DBB on 22 Input sens.:Nom. 500 mV 23 for 50mW Limit: 600 mV 2

13、4 Line outp.: Nom. mV 25 voltage Limit: mV 26 OUTPUT POWER: Mains operation: D=10% 2 X 1W 8 Limit: -1dB 27 28 Music power (MPO) / (PMPO): (acc. to DIN45324) 29 Short term maximum output power: - (acc. to IEC 60268-15) 30 Long term maximum output power: - (acc. to IEC 60268-15) 31 Headphone output vo

14、ltage/power: n.a. 32 Bandwidth FTC 1dB at: n.a. (acc. to FTC/16/1/D/432) 33 Bandwidth DIN 3dB at: - (acc. to IEC 60268-15) 34 Frequency response at Vol. max 20dB: typ. 60Hz to 20kHz (3dB) 35 LOUDSPEAKER (output): Low pass crossover frequency: - kHz tolerance: Hz36 High pass crossover frequency: - kH

15、z tolerance: Hz37 Short term maximum output power: - W (acc. to IEC 60268-15) 38 Long term maximum output power: - W (acc. to IEC 60268-15) 39 Frequency response at: - Hz kHz 41 REMARKS: 27 : Measured in Tuner mode; 28: CD or Tape mode. 42 SET SPECIFICATION 2011-04-01 1 CDSM WITH 2 MC127 3 TAPE func

16、tion: (ECO-MTF-PA-SD-MS (FE) Module) General description: 1 2 3 4 5 6 7 8 Mechanical specification: 9 10 11 12 13 14 15 16 17 18 19 20 Indicators: Recording level No 21 Play back level No 22 Tape counter No 23 Electrical data: Bias system FM/AM 24 RIF switch No 25 Erase system FM/AM 26 Erasing dampi

17、ng 27 Channel separation (IEC1) 28 Track separation (IEC1) 29 Frequency response (PB) 30 SNR 250nWb/m 31 Signal/hiss 250nWb/m 32 Signal/hum 250nWb/m 33 Channel difference (PB) 34 Distortion 250nWb/m 35 ALC attack time 36 ALC release time 37 Crosstalk Between forward to reverse track 38 REMARKS: 31:

18、* not according to PQR clause 18.5 class I 31: * Chromium performance not fulfilled Amplification Reserve for Tape = 1dB 2dB For details, please see specification SH-190 of ECO-MTF-PA-SD (3140 117 14890). 39 CD-PART: ( CD MECHAISM-DA11B3VF)(SANYO) 5 Technical description: Input Output Motor/control

19、Logic control 1 SET SPECIFICATION 2011-04-01 1 CDSM WITH 2 MC127 3 Active components MMSA9258(Mitsu mi) SC9640 2 Passive components 3 Signal processing HF-preamplifier Servoprocessor 4 Active components SC9614 SC9614 SC9640 5 Passive components 6 Indicators/Display/Keys: Display: Digits LCD for Trac

20、k No. display 7 Keys: one 4-position slider switch, 6 tact switches on unit, 6 for CD -: Play, Stop, Previous/Search down, Next/Search up, Program/Program review, CD-modes (Repeat/Shuffle) 8 Playability: (acc. To AR 30-05-239) Limit Typical Testdisc 9 Wedge 500 m 700 m TNO 7,9 of SBC 444A (7104 099

21、24990) 10 Eccentric 150 m 200 m TNO 1,24 of 200m disc (7104 099 24960) 11 Fingerprint No audible defect TNO 11of Subchassis 8A 12 Black dot 500 m 600 m TNO 13 of SBC 444A (7104 099 24990) 13 Skew 0.6mm No audible defect TNO 1,6 of 0.6mm skew (7104 099 28260) 14 Bad HF track No audible defect TNO 8 o

22、f Subchassis 8A 15 Heavy fingerprint No track jumps/plops TNO 10 of Subchassis 8A 16 Playback position Horizontal, Normal position (Set is located on a flat surface, floor) 17 - Playback of above mentioned tracks possible without track loss or audible defects. 18 - Double black dot, max. diameter, t

23、hin/thick disk is according to PQR or AR 30-05-239) - This unit can playback (only) CD-R or CD-RW discs. For performance specification, please refer to module specification of CD99 (3103 308 52190) Shock resistance: (acc. to AR 13-A6-CD-068) Z axis 5 G 19 X or Y axis 5 G m 20 Acoustical noise: Mode:

24、 Play/Pause 35 dBA max. (45 dbA in Search mode) 21 Mode: Jump (Next) 45 dBA max. 22 AUDIO part: (Measured with Audio Signals Disc-1, 7104 078 04911 on Speakers or Headphone socket with nom. load) Typ. Limit 23 Output level (TNO1) 24 SNR unwtd. 60 dB 48 dB 25 SNR wtd. dBA 65 dBA 57 dBA 26 Crosstalk (

25、1kHz) 40 dB 26 dB 27 Crosstalk (10kHz) 30 dB 16 dB 28 Frequency response Vol.max.20dB (DBB on) +9dB +3dB 2dB at 100Hz 2dB at 10kHz 29 THD (1kHz, -6 dB) 0.2 % 2 % 30 THD (10 kHz, -20 dB) 1 % 3 % 31 Channel difference 2 dB 3 dB 32 Frequency accuracy - +/-0.5 % 33 De-emphasis 15s / 50s Switchable via S

26、ubcode information 34 REMARKS: - Amplification reserve for CD = +2dB (2dB); Ref. Level for CD is a 0dB track instead of a 6dB track. 35 Feature Specification of MP3 CD CODEC / COMPRESSION Format Compatibility SET SPECIFICATION 2011-04-01 1 CDSM WITH 2 MC127 3 MP3 X 35 MPEG 2.5 X 36 MP3 Pro X 37 WMA

27、X 38 AAC X 39 Playback CAPACITY Maximum number of tracks per CD X 40 Maximum number of albums per CD X 41 DISC TYPE CD-RW 42 CD-R 43 8 cm 44 12 cm 45 DISC SIZE (MB) 185 46 225 47 650 48 680 49 700 50 ISO-9660 + Joliet X 51 Joliet X 52 UDF (Direct CD from X 53 ID3 X 54 Packet writing X 55 Multi-sessi

28、on CDDA X 56 Multi-session MP3 X 57 Closed session 58 Open session 59 Finalized disc 60 Unfinalized disc 61 CDDA + MP3/WMAX 62 MP3/WMA + CDDAX 63 MP3/WMA + CDDA + MP3/WMA X 64 CDDA + MP3/WMA + CDDA X 65 Video + CDDA X 66 CDDA + Data X 67 MP3/WMA + Data X 68 SET SPECIFICATION 2011-04-01 1 CDSM WITH 2

29、 MC127 3 BITRATE (kbps) 64 -192 X 70 8 320 X 71 Variable X 72 Sampling RATE (kHz) 8 X 73 11.025 X 74 12 X 75 16 X 76 22.05 X 77 24 X 78 32 X 79 44.1 X 80 48 X 81 96 X 82 UPGRADE ABILITY MP3 X 83 MP3 Pro X 84 WMA X 85 AAC X 86 SOUND Single Channel 87 Dual Channel 88 Stereo fr Reparaturen sind Origina

30、l-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test from all exp

31、osed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GBWarning ! Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkoppl

32、ad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DKAdvarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. Caution: These servicing instructio

33、ns are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. 2-4 When?the?power?supply?is?being?turned?on,?you?may?not?remove?this?laser?cautions?label.

34、?If?it?removes,?radiation?of?laser may?be?received. 2.1 ESD PROTECTION PREPARATION?OF?SERVICING Pickup?Head?consists?of?a?laser?diode?that?is?very?susceptible?to?external?static?electrocity. Although?it?operates?properly?after?replacement,?if?it?was?subject?to?electrostatic?discharge?during?replacem

35、ent, its?life?might?be?shortened.?When?replacing,?use?a?conductive?mat,?soldering?iron?with?ground?wire,etc.?to protect?the?laser?diode?form?damage?by?static?electricity. And?also,?the?LSI?and?IC?are?same?as?above. Soldering?iron with?ground?wire or?ceramic?type Ground?conductive wrist?strap?for?bod

36、y. Conductive?mat The?ground?resistance between?the?ground?line and?the?ground?is?less?than?10 1M 2-5 SAFTY NOTICE Plug the AC line cord directly into a 120V AC outlet (do not use an isolation transformer for this check). Use an AC voltmeter, having 5000 per volt or more sensitivity. Connect a 1500

37、10W resistor,paralleled by a 0.15uF 150V AC capacitor between a knomn good earth ground (water pipe, conduit, etc.) and all exposed metal parts of cabinet (antennas, handle bracket, metal cabinet screwheads, metal overlays, control shafts, etc.). SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Measure the A

38、C voltage across the 1500 resistor. The test must be conducted with the AC switch on and then repeated with the AC switch off. The AC voltage indicated by the meter may not exceed 0.3V.A reading exceeding 0.3V indicates that a dangerous potential exists, the fault must be located and corrected. Repe

39、at the above test with the DVD VIDEO PLAYER power plug reversed. NEVER RETURN A DVD VIDEO PLAYER TO THE CUSTOMER WITHOUT TAKING NECESSARY CORRECTIVE ACTION. READING SHOULD NOT EXCEED 0.3V DVD VIDEO PLAYER AC OUTLET AC VOLTMETER Test all exposed metal. Voltmeter Hook-up for Leakage Current Check 0.15

40、uF 150V AC 1500 10W (5000 per volt or more sensitivity) Good earth ground such as a water pipe, conduit, etc. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that m

41、ay be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 2-6 2.2 SA

42、FETY INSTRUCTIONS Battery Handling Guideline Since the battery is packed in soft package, to ensure its better performance, its very important to carefully handle the battery 2.2.1 Soft Aluminium foil The soft aluminum packing foil is very easily damaged by sharp edge parts such as Ni-tabs, pins and needles. Dont strike battery with any sharp edge parts Trim your nail or wear glove before taking battery Clean worktable to make sure no any sharp particle 2.2.2 Sealed edge Sealing edge is very flimsy Dont bend o