Philips-MC-150-Service-Manual(1) 电路图 维修手册.pdf

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1、MC150/21/22/25 3141 785 30050 ? Micro System Published by SL 0430 Service Audio Printed in The Netherlands Subject to modification Copyright 2003 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval sys

2、tem or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Handling chip components .1-1 Technical specification.2-1 Service tools.2-1 Service measurement setup.2-2 Connections and controls.3-1.3-2 Disassembly diagram

3、.4-1 Pin description of ICs.4-2.4-4 Set block diagram.5-1 Set wiring diagram.5-2 LCD BOARD circuit diagram .6-1 layout diagram.6-2 HEADPHONE BOARD circuit diagram .6-1 layout diagram.6-2 KEY BOARD circuit diagram .6-1 layout diagram.6-2 POWER BOARD circuit diagram .6-1 layout diagram.6-3 CD BOARD ci

4、rcuit diagram .7-1 layout diagram.7-2 MAIN BOARD circuit diagram - power amplifier.8-1 circuit diagram - tuner.8-2 layout diagram - component side.8-3 layout diagram - SMD side .8-4 Exploded view (main set).9-1 Mechanical partslist.10-1 Electrical partslist.10-1 TABLE OF CONTENTS CLASS 1 LASER PRODU

5、CT Version 1.0 RadioFans.CN 收音机爱 好者资料库 1 - 1 HANDLING CHIP COMPONENTS WARNING All ICs and many other semiconductors 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

6、 as the mass of the set via a wristband with resistance. Keep components and tools at this potential. f ATTENTION Tous les IC et beaucoup dautres semi-conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvite pourrait tre considrablement courte par le fait quaucune prcaution nst prise l

7、eur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil et enfileer le bracelet serti dune rsistance de scurit. Veiller ce que les composants ainsi que les outils que lon utilise soient galement ce potentiel. d WARNUNG Alle ICs und viele andere Halb

8、leiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparaturfall kann die Lebensdauer drastisch reduzieren. Sorgen Sie dafr, da Sie im Reparaturfall ber ein Puls- armband mit Widerstand mit dem Massepotential des Gertes verbunden sind. Halten Sie Bauteil

9、e und Hilfsmittel ebenfalls auf diesem Potential. WAARSCHUWING Alle ICs en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie via een polsband met

10、weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal. i AVVERTIMENTO Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevit potrebbe essere fortemente ridatta in caso d

11、i non osservazione della pi grande cauzione alla loro manipolazione. Durante le riparationi occorre quindi essere collegato allo stesso potenziale che quello della massa delpparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano an

12、che a questo potenziale. 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 i Le norme di sicurezza estigono che lapparecchio venga rimesso nelle condizioni original

13、i e che siano utilizzati i pezzi di ricambiago identici a quelli specificati. Componenty di sicurezza sono marcati con Veiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkeliijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. De Veili

14、gheidsonderdelen zijn aangeduid met het symbool s Varning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. Advarsel ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. Varoitus ! Avatussa laitteessa ja suoj

15、alukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen ! f Pour votre scurite, ces documents doivent tre utiliss par des spcialistes agrs, seuls habilits rparer votre appareil en panne. ESD SAFETY d Bei jeder Reparatur sind die geltenden Sicherheitsvor- schriften zu beac

16、hten. Der Originalzustand des Gertes darf nicht verndert werden. Fr Reparaturen sind Original- ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol markiert. f Les normes de scurit exigent que lappareil soit remis ltat dorigine et que soient utilises les pices de rechange identiques c

17、elles spcifies. Les composants de scurit sont marqus CLASS 1 LASER PRODUCT DANGER: Invisible laser radiation when open. After servicing and before returning the set to customer perform a leakage current measurement test from all exposed metal parts to earth ground, to assure no shock hazard exists.

18、The leakage current must not exceed 0.5mA. AVOID DIRECT EXPOSURE TO BEAM. HANDLING CHIP COMPONENTS RadioFans.CN 收音机爱 好者资料库 2 - 1 SERVICE TOOLS TORX T10 screwdriver with shaftlength 150mm.4822 395 50423 TORX screwdriver set SBC 163.4822 295 50145 Audio signal disc SBC 429.4822 397 30184 Playability t

19、est disc SBC 444.4822 397 30245 Test disc 5(disc without errors ) + Test disc 5A (disc with dropout errors, black spots and fingerprints) SBC 426/426A.4822 397 30096 Burn in test disc (65 min. 1kHz signal at -30 dB level without “pause”).4822 397 30155 Universal test cassette Fe SBC 420.4822 397 300

20、71 anti-static table matlarge 1200 x650 x1.25mm4822 466 10953 small 600 x650 x1.25mm4822 466 10958 anti-static wristband4822 395 10223 connection box (3 press stud connections, 1M)4822 320 11307 4822 320 11305extendible cable (2m, 2M, to connect wristband to connection box) connecting cable (3m, 2M,

21、 to connect table mat to connection box)4822 320 11306 earth cable (1M, to connect any product to mat or to connection box) 4822 320 11308 KIT ESD3 (combining all 6 prior products - small table mat)4822 310 10671 wristband tester4822 344 13999 AVAILABLE ESD PROTECTION EQUIPMENT TECHNICAL SPECIFICATI

22、ONS GENERAL Mains voltage -/21 -/22/25 : 110 - 127 / 220 - 240V 230V 10% Mains frequency -/22/25 : 50 / 60 Hz Switchable 50 Hz Batteryremote : 3 V (R6 x 2) Power consumptionnormal : Standby : 3 W Dimension (W x H x D): 156 x 222 x 216 mm Weight (without speakers): 2.95 Kg AMPLIFIER Output powermains

23、 : 2 x 5 W RMS Speaker impedance: 2 x 3 ohm Frequency response within 3dB : 60 Hz - 14 kHz TUNER - FM SECTION : 87.5 - 108 MHz IF frequency: 10.7 MHz 0.02 MHz Sensitivity: 20 dB Distortion at RF1mV, Dev. 75kHz : 24 dB Distortion at RF=50mV, M=80%: 20 dB AUDIO CASSETTE RECORDER Frequency response: 80

24、 - 10000 Hz (8dB) Wow opens the tape compartment. PAUSE.pauses recording or playback. 7VOLUME 3 / 4 (VOL 3 / 4 ) adjusts volume level. adjusts the hours and minutes for clock/ timer functions. 8iR SENSOR infrared sensor for remote control. 9TIMER / CLOCK activates/deactivates or sets the timer funct

25、ion. sets the clock function. views the clock time. 0REPEAT / SHUFFLE repeats a track/CD program/ entire CD. plays CD tracks in random order. !PROGRAM (PROG) for CD .programs tracks and reviews the program. for Tuner .programs tuner stations manually or automatically. connect headphones. #OPENCLOSE

26、opens/closes the CD door. $MUTE switches playback sound off and on. %SLEEP activates/deactivates or selects the sleeper time. Notes for remote control: First select the source you wish to control by pressing one of the source select keys on the remote control (for example CD , TUNER). Then select th

27、e desired function (for example,). PREPARATIONS AND CONTROLS 3-3 Important notes for users in the U.K. Mains plug This apparatus is fitted with an approved 13 Amp plug. To change a fuse in this type of plug proceed as follows: 1Remove fuse cover and fuse. 2Fix new fuse which should be a BS1362 5 Amp

28、, A.S.T.A. or BSI approved type. 3Refit the fuse cover. If the fitted plug is not suitable for your socket outlets, it should be cut off and an appropriate plug fitted in its place. If the mains plug contains a fuse, this should have a value of 5 Amp. If a plug without a fuse is used, the fuse at th

29、e distribution board should not be greater than 5 Amp. Note: The severed plug must be disposed of to avoid a possible shock hazard should it be inserted into a 13 Amp socket elsewhere. How to connect a plug The wires in the mains lead are coloured with the following code: blue = neutral (N), brown =

30、 live (L). As these colours may not correspond with the colour markings identifying the terminals in your plug, proceed as follows: Connect the blue wire to the terminal marked N or coloured black. Connect the brown wire to the terminal marked L or coloured red. Do not connect either wire to the ear

31、th terminal in the plug, marked E (or e) or coloured green (or green and yellow). Before replacing the plug cover, make certain that the cord grip is clamped over the sheath of the lead - not simply over the two wires. Copyright in the U.K. Recording and playback of material may require consent. See

32、 Copyright Act 1956 and The Performers Protection Acts 1958 to 1972. Norge Typeskilt finnes p apparatens underside. Observer: Nettbryteren er sekundert innkoplet. Den innebygde netdelen er derfor ikke frakoplet nettet s lenge apparatet er tilsluttet nettkontakten. For redusere faren for brann eller

33、elektrisk stt, skal apparatet ikke utsettes for regn eller fuktighet. Italia DICHIARAZIONE DI CONFORMITA Si dichiara che lapparecchio MC230, MC235 Philips risponde alle prescrizioni dellart. 2 comma 1 del D.M. 28 Agosto 1995 n. 548. Fatto a Eindhoven Philips Consumer Electronics Philips, Glaslaan 2

34、5616 JB Eindhoven, The Netherlands CAUTION Use of controls or adjustments or performance of procedures other than herein may result in hazardous radiation exposure or other unsafe operation. VAROITUS Muiden kuin tss esitettyjen toimintojen sdn tai asetusten muutto saattaa altistaa vaaralliselle stei

35、lylle tai muille vaarallisille toiminnoille. 3-4 PREPARATIONS AND CONTROLS Troubleshooting WARNING Under no circumstances should you try to repair the system yourself, as this will invalidate the warranty. Do not open the system as there is a risk of electric shock. If a fault occurs, first check th

36、e points listed below before taking the system for repair. If you are unable to remedy a problem by following these hints, consult your dealer or service centre. ProblemSolution CD OPERATION “no cd” is displayed.Insert a disc. Check if the disc is inserted upside down. Wait until the moisture conden

37、sation at the lens has cleared. Replace or clean the disc, see “Maintenance”. Use a finalised CD-RW or CD-R. RADIO RECEPTION Radio reception is poor.If the signal is too weak, adjust the antenna or connect an external antenna for better reception. Increase the distance between the Micro HiFi System

38、and your TV or VCR. TAPE OPERATION / RECORDING Recording or playback cannot be made.Clean deck parts, see “Maintenance”. Use only normal (IEC I) tape for recording. Apply a piece of adhesive tape over the missing tab space. GENERAL The system does not react when buttonsRemove and reconnect the AC po

39、wer plug and are pressed.switch on the system again. Sound cannot be heard or is of poorAdjust the volume. quality.Disconnect the headphones. Check that the speakers are connected correctly. Check if the stripped speaker wire is clamped. The left and right sound outputs areCheck the speaker connecti

40、ons and location. reversed. The remote control does not functionSelect the source (CD or TUNER, for example) properly.before pressing the function button (,). Reduce the distance between the remote control and the system. Insert the batteries with their polarities (+/ signs) aligned as indicated. Re

41、place the batteries. Point the remote control directly toward IR sensor on the front of the system. The timer is not working.Set the clock correctly. PressTIMER to switch on the timer. If a recording is in progress, stop the recording. The Clock/Timer setting is erased.Power has been interrupted or

42、the power cord has been disconnected. Reset the clock/timer. Troubleshooting 4-14-1 DISASSEMBLY DIAGRAM A. To remove Rear Cabinet B. To remove CD Tray C. To remove Main Board D. To remove CD Board E. To remove Tape Deck F. To remove LCD Board G. To remove Cassette Key Plate H. To remove Transformer Holder 2 2 2 2 4 4 3 3 2 2 2 2 2 2 2 2 2 25 3 4 5 5 4 3 4 3 Abbreviations and Pin-description of ICs SERVO PROCESSOR SAA7379HL 4-24-2 SYMBOLPINI/ODESCRIPT