Philips-MCM-166-Service-Manual(1) 电路图 维修手册.pdf

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1、Version 1.4 MCM166 3141 785 33134 Micro Hi-Fi System -/12/55/05/77 Published by LX 1206 Service Audio Subject to modification Copyright 2010 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system o

2、r transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. CONTENTS Technical specification .1-2 Version variations .1-2 Service measurement setup.1-3 Service aids .1-4 Instructions on CD playability .2-1.2-2 Disassembly di

3、agram. .3-1 Block diagram .4-1 Wiring diagram .4-2 MCU board Circuit diagram .5-1 Layout diagram .5-2.5-3 Main board Circuit diagram .6-1.6-3 Layout diagram .6-4.6-5 USB board Circuit diagram .7-1 Layout diagram .7-2 Exploded view diagram .8-1 This service manual is only for MCM166/12/55/05/77 This

4、is previous generation models. The serial number is: before LM011039227020(only for/12) before LM001039092086(only for /55/77) RadioFans.CN 收音机爱 好者资料库 Tuner Tuning RangeFM: 87.5 - 108MHz; MW: 531 - 1602kHz Tuning grid50KHz Sensitivity - Mono, 26dB S/N Ratio - Stereo, 46dB S/N Ratio 43 dBf Search Sel

5、ectivity28dBf Total Harmonic Distortion 55dB Speakers Speaker Impedance 4ohm Speaker Driver3.5”woofer+0.8” tweeter Sensitivity82dB/m/W General information AC power220 - 230V, 50Hz Operation Power Consumption 20W Standby Power Consumption 4W Eco Standby Power Consumption 65dB Aux Input0.5V RMS 20kohm

6、 Disc LaserTypeSemiconductor Disc Diameter12cm/8cm Support DiscCD-DA, CD-R, CD-RW, MP3-CD,WMA-CD Audio DAC24Bits / 44.1kHz Total Harmonic Distortion 65dBA TECHNICAL SPECIFICATION 1 - 2 Type /Versions: Features Board in used: MCM166(for first generation) Service policy MCU BOARD MAIN BOARD * TIPS : C

7、 - Component Lever Repair. M - Module Lever Repair - Used /05/12/55 89/16/37/ Feature diffrence RDS VOLTAGE SELECTOR ECO STANDBY - DARK C C Type /Versions: MCM166(for first generation) /05/12/55 89/16/37/ VERSION VARIATION 39/ 39/ USB BOARDC C C C C C C RadioFans.CN 收音机爱 好者资料库 1-3 LF Generator e.g.

8、PM5110 Recorder Use Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion mete e.g. Sound Technology ST170 L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion

9、meter e.g. Sound Technology ST1700B L R DUT CD Use Audio Signal Disc (replaces test disc 3) SBC429 4822 397 30184 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT S/N and distortion meter e.g. Sound Technology ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid at

10、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. PM5326 Ri=50? Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator e

11、.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50? Tuner FM MEASUREMENT SETUP RadioFans.CN 收音机爱 好者资料库 1-4 SERVICE AIDS GBWARNING All ICs and many other semi-conductors are su

12、sceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential. ESD CLASS 1 LA

13、SER PRODUCT GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used Safety components are marked by the symbol !. Lead free Set remains closed! N Y Play a CD for at least 10 minutes Y playability ok ? N playabi

14、lity ok ? add Info for customer SET OK check playability N Y playability ok ? check playability check playability return set Customer complaint CD related problem fast lens cleaning 1 2 3 For flap loaders (= access to CD drive possible) cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILITY

15、 2 - 1 Exchange CDM 1- 4 For description - see following pages 1 PLAYABILITY CHECK For sets which are compatible with CD-RW discs use CD-RW Printed Audio Disc.7104 099 96611 TR 3 (Fingerprint) TR 8 (600 Black dot) maximum at 01:00 playback of these two tracks without audible disturbance playing time

16、 for: Fingerprint10seconds Black dot from 00:50 to 01:10 jump forward/backward (search) within a reasonable time For all other sets use CD-DA SBC 444A.4822 397 30245 TR 14 (600 Black dot) maximum at 01:15 TR 19 (Fingerprint) TR 10 (1000 wedge) playback of all these tracks without audible disturbance

17、 playing time for: 1000 wedge10seconds Fingerprint10seconds Black dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time 2 CUSTOMER INFORMATION It is proposed to add an addendum sheet to the set which informs the customer that the set has been checked carefully - but no faul

18、t was found. The problem was obviously caused by a scratched, dirty or copy-protected CD. In case problems remain, the customer is requested to contact the workshop directly. The lens cleaning (method 3) should be mentioned in the addendum sheet. The final wording in national language as well as the

19、 printing is under responsibility of the Regional Service Organizations. 4 LIQUID LENS CLEANING Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent The actu

20、ator is a very precise mechanical component and may not be damaged in order to guarantee its full function. Clean the lens gently (dont press too hard) with a soft and clean cotton bud moistened with the special lens cleaner. The direction of cleaning must be in the way as indicated in the picture b

21、elow. Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens. INSTRUCTIONS ON CD PLAYABILITY 2 - 2 DISASSEMBLY DIAGRAM VIEW 3 - 13 - 1 SET BLOCK DIAGRAM 4 - 14 - 1 SET WIRING DIAGRAM 4 - 24-

22、 2 5 - 15 - 1 CIRCUIT DIAGRAM - MCU BOARD 5 - 25 - 2 LAYOUT DIAGARM - MCU BOARD COMPONENT SIDE VIEW 5 - 3 LAYOUT DIAGARM - MCU BOARD COPPER SIDE VIEW 5 - 3 CIRCUIT DIAGRAM - MAIN BOARD AF MW: 531 - 1602kHz Tuning grid50KHz Sensitivity - Mono, 26dB S/N Ratio - Stereo, 46dB S/N Ratio 43 dBf Search Sel

23、ectivity28dBf Total Harmonic Distortion 55dB Speakers Speaker Impedance 4ohm Speaker Driver3.5”woofer+0.8” tweeter Sensitivity82dB/m/W General information AC power220 - 230V, 50Hz Operation Power Consumption 20W Standby Power Consumption 4W Eco Standby Power Consumption 65dB Aux Input0.5V RMS 20kohm

24、 Disc LaserTypeSemiconductor Disc Diameter12cm/8cm Support DiscCD-DA, CD-R, CD-RW, MP3-CD,WMA-CD Audio DAC24Bits / 44.1kHz Total Harmonic Distortion 65dBA TECHNICAL SPECIFICATION 1 - 2 Type /Versions: Features Board in used: MCM166( 3rd g eneration) Service policy DISPLAY BOARD MAIN BOARD * TIPS : C

25、 - Component Lever Repair. M - Module Lever Repair - Used /05/12/55 89/16/37/ Feature diffrence RDS VOLTAGE SELECTOR ECO STANDBY - DARK C C Type /Versions: MCM166 ( 3rd g eneration) /05/12/55 89/16/37/ VERSION VARIATION 39/ 39/ 2.0 SAFTETY INSTRUCTIONS GBWARNING All ICs and many other semi-conductor

26、s are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential. F ATTE

27、NTION Tous les IC et beaucoup dautres semi-conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvit pourrait tre considrablement courte par le fait quaucune prcaution nest prise leur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil e

28、t enfiler le bracelet serti dune rsistance de scurit. Veiller ce que les composants ainsi que les outils que lon utilise soient galement ce potentiel. ESD DWARNUNG Alle ICs und viele andere Halbleiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparatur

29、fall kan die Lebensdauer drastisch reduzieren. Veranlassen Sie, dass Sie im Reparaturfall ber ein Pulsarmband mit Widerstand verbunden sind mit dem gleichen Potential wie die Masse des Gertes. Bauteile und Hilfsmittel auch auf dieses gleiche Potential halten. NLWAARSCHUWING Alle ICs en vele andere h

30、alfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd c

31、omponenten en hulpmiddelen ook op ditzelfde potentiaal. IAVVERTIMENTO Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevit potrebbe essere fortemente ridatta in caso di non osservazione della pi grande cauzione alla loro manipolazione. Durante le riparazi

32、oni occorre quindi essere collegato allo stesso potenziale che quello della massa dellapparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale. “Pour votre scurit, ces documents doivent tre utiliss par des

33、 spcia- listes agrs, seuls habilits rparer votre appareil en panne”. GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used. NL Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronke

34、lijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. F Les normes de scurit exigent que lappareil soit remis ltat dorigine et que soient utiliss les pices de rechange identiques celles spcifies. D Bei jeder Reparatur sind die geltenden Sicherheitsv

35、orschriften zu beachten. Der Original zustand des Gerts darf nicht verndert werden; fr Reparaturen sind Original-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 specificat

36、i. After servicing and before returning set to customer perform a leakage current measurement test from all exposed 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

37、open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DKAdvarse ! Usynlig laserstrling ved bni

38、ng nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. Caution: These servicing instructions 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

39、qualified to do so. 2-1 When?the?power?supply?is?being?turned?on,?you?may?not?remove?this?laser?cautions?label.?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

40、. Although?it?operates?properly?after?replacement,?if?it?was?subject?to?electrostatic?discharge?during?replacement, 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?

41、and?IC?are?same?as?above. Soldering?iron with?ground?wire or?ceramic?type Ground?conductive wrist?strap?for?body. Conductive?mat The?ground?resistance between?the?ground?line and?the?ground?is?less?than?10 1M 2-2 SAFTY NOTICE Plug the AC line cord directly into a 120V AC outlet (do not use an isolat

42、ion transformer for this check). Use an AC voltmeter, having 5000 per volt or more sensitivity. Connect a 1500 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 c

43、abinet screwheads, metal overlays, control shafts, etc.). SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Measure the AC 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 re

44、ading exceeding 0.3V indicates that a dangerous potential exists, the fault must be located and corrected. Repeat 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 D

45、VD VIDEO PLAYER AC OUTLET AC VOLTMETER Test all exposed metal. Voltmeter Hook-up for Leakage Current Check 0.15uF 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 i

46、ntended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may 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) instructio