Philips-MCM-275-Service-Manual电路原理图.pdf

GBCLASS 1LASER PRODUCTCOMPACTDIGITAL AUDIOServiceServiceServiceServiceServiceMCM275TABLE OF CONTENTS©Copyright 2008 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system ortransmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwisewithout the prior permission of Philips.Published by SL 0819 Service Audio Printed in The Netherlands Subject to modificationMicro System3141 785 30336Version 1.6Service Manualall versionsFrom week 714 onwards, the CD Mechanism was changed to Dayang M93. New CD für Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.“After servicing and before returning set to customer perform aleakage current measurement test from all exposed metal parts toearth ground to assure no shock hazard exist. The leakage currentmust not exceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !Invisible laser radiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrålning när apparaten är öppnad och spärrenär urkopplad. Betrakta ej strålen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinanäkymättömälle laserisäteilylle. Älä katso säteeseen!DK Advarse !Usynlig laserstråling ved åbning når sikkerhedsafbrydere erude af funktion. Undgå udsaettelse for stråling.1-7INFORMATION ABOUT LEAD-FREE SOLDERING Philips CE is producing lead-free sets from 1.1.2005 onwards. IDENTIFICATION: Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules: Example S/N: Bottom line of typeplate gives a 14-digit S/N. Digit 5In standby or Eco Power mode:press andhold to toggle between Standby and ECOPOWER mode (power-saving mode)Red indicator:lights up red when the set isswitched to ECO POWER mode2SOURCEselects sound source CD,USB,TUNERorAUXIn standby or Eco Power mode:switches theseton and selects sound source CD,USB,TUNERor AUX3IRsensor for the infrared remote controlHelpful hints:Always point the remote controltowards this sensor.4PUSH OPENpush to unfold or fold the control panel5CD OPEN CLOSE0opens/closes the CD door6CD door7VOLUMEadjusts the volume levelClock/Timer:adjusts the hours and minutes8nnnnn3.5 mm headphone socketHelpful hints: Adjust the volume to a moderate levelbefore you plug in the headphones.Connecting headphones will switch off thespeakers.9ALBUM/ PRESET +/-CD/USB:selects albums (for MP3/WMA only)TUNER:selects a preset radio station4 /¢CD/USB:skips or searches CD tracks/titlesbackwards/forwardsTuner:tunes to radio stations6CD/USB:starts or pauses playback0DBB(Dynamic Bass Boost)turns the bass enhancement on/off!DSC(Digital Sound Control)selects predefined sound settings:ROCK,JAZZ,POP,CLASSICPROGRAMCD/USB:programs tracks Tuner:programs preset radio stations#STOPCD/USB:stops playback;erase a program$AUX-INconnects to the AUDIO OUT jack on theexternal appliance% jack for the external USB mass storage deviceRemote control7 81% $ ! 90#2 4 5 63USB/AUXselects the audio input from an additional connected applianceIn standby or Eco Power mode:switches theset on and selects the audio input from an additional connected appliance3VOLUME+/-adjusts the volume levelClock/Timer:adjusts the hours and minutes4TIMERdisplays the timer settingswitches the timer on/offenters the timer setting mode (press and holdfor more than 2 seconds)5SLEEPset the sleep timer6MUTEswitches the sound off temporarily7RDS/NEWSTuner:selects RDS (RadioDataSystem)informationCD/USB/AUX:activates/deactivates news8SHUFFLEselects random playback9REPEATselects continuous playback0DSC(Digital Sound Control)selects predefined sound settings:ROCK,JAZZ,POP,CLASSIC!DBB(Dynamic Bass Boost)turns the bass enhancement on/offPROGRAMCD/USB:programs tracksTuner:programs preset radio stations#DISPLAY/CLOCKClock:- displays the set time -In standby mode:enters the clocksetting mode (press and hold for more than 2 seconds)TUNER/Audio CD:switches between clockdisplay and playbackdisplayMP3/WMA files:displays disc informationduring playbackNotes for remote control:First select the source you wish tocontrol by pressing one of the source selectkeys on the remote control (for exampleCD,TUNER).Then select the desired function (forexampleÉÅ,í,ë).1BBBBBpress briefly to switch the set on or off (standby/ECO POWER);In standby or Eco Power mode:press andhold to toggle between Standby and ECOPOWER mode (power-saving mode)2Source buttonsUSBselectsUSBsourceIn standby or Eco Power mode:switches theset on and selects USBsource.CDselectsCDsourceIn standby or Eco Power mode:switches theset on and selects CDsource.TUNERselectsTUNERsource and toggles between thewavebands:FM and MWIn standby or Eco Power mode:switches theset on and selects TUNERsourceControls1-10CONTROLS erase a program%OPEN CLOSEçopens/closes the CD doorControls InstallationPlacing MCM275 With the detachable stand and by-packed wallmounting kit ,MCM275 allows you to place it intwo ways:on desktops with standor onwalls without stand.Mounting stand onto the setMCM275 is equipped with a stand.To mountthe stand onto the set,1Put MCM275 on a flat and firm surface,rear sidefacing up2As shown,align the stand to the slots at setsbottom,4 FRONT facing downPRESSFRONTFRONTPRESS3Push the stand down into the slotsWhen the stand is in place, you will hear aclick SeeAppendix:How to mount yourMCM275 onto walls to learn more aboutwall mounting.Mounting MCM275 onto wallsInstallationMW loop antennaSpeaker (left)Speaker (right)FM wire antennaACpower cordRear connections Warning:Never make or change connections withthe mains supply switched on. Install your set near the AC outlet andwhere the AC power plug can be reachedeasily.ASpeaker connectionsUse the supplied speakers only.Using otherspeakers can damage the set or the soundquality will be negatively affected.Connect the cable of the left speaker to LEFT(red and black) and the cable of the rightspeaker to RIGHT(red and black) as follows:a.Press the clip of the red terminal and fullyinsert the stripped portion of the colored (ormarked) speaker cable into the socket,thenrelease the clip b.Press the clip of the black terminal and fullyinsert the stripped portion of the black (orunmarked) speaker cable into the socket,thenrelease the clipBAntenna connections MW antenna1Assemble the loop antenna as shown: