Philips-MC-150-Service-Manual.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 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 as the mass of the set

6、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 leur manipulation. Lors d

7、e 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 Halbleiter sind empfindlich

8、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 Bauteile und Hilfsmittel ebenfa

9、lls 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 weerstand verbonden bent

10、 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 di non osservazione della

11、 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 anche a questo potenziale.

12、 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 originali e che siano utilizzati

13、 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 Veiligheidsonderdelen zijn aa

14、ngeduid 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 suojalukituksen ohitettaessa

15、 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 beachten. Der Originalzustan

16、d 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 celles spcifies. Les comp

17、osants 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. The leakage current must

18、 not exceed 0.5mA. AVOID DIRECT EXPOSURE TO BEAM. HANDLING CHIP COMPONENTS 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 test disc SBC 444.4822 397 30245 Test disc 5(disc

19、 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 30071 anti-static table matlarge 1200 x650 x1.25mm4

20、822 466 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, to connect table mat to connection box)4822 320

21、 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 SPECIFICATIONS GENERAL Mains voltage -/21 -/22/25 : 110 - 1

22、27 / 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 : 2 x 5 W RMS Speaker impedance: 2 x 3 ohm Freq

23、uency 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 - 10000 Hz (8dB) Wow opens the tape compartment

24、. 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 function. sets the clock function. views the clock ti

25、me. 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 opens/closes the CD door. $MUTE switches playbac

26、k 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 the desired function (for example,). PREPARATIONS

27、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, A.S.T.A. or BSI approved type. 3Refit the fuse

28、 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 the distribution board should not be greater than

29、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 = live (L). As these colours may not correspond w

30、ith 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 earth terminal in the plug, marked E (or e) or colo

31、ured 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 Copyright Act 1956 and The Performers Protectio

32、n 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 elektrisk stt, skal apparatet ikke utsettes for

33、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 5616 JB Eindhoven, The Netherlands CAUTION Use o

34、f 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 steilylle tai muille vaarallisille toiminnoille. 3-4

35、 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 the points listed below before taking the system f

36、or 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 condensation at the lens has cleared. Replace or clean

37、 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 and your TV or VCR. TAPE OPERATION / RECORDING R

38、ecording 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 power plug and are pressed.switch on the system ag

39、ain. 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 connections and location. reversed. The remote control d

40、oes 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. Replace the batteries. Point the remote control di

41、rectly 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 the power cord has been disconnected. Reset the

42、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/ODESCRIPTION LFPOWER1Ilaser power supply EXFILTER2O10 nF