Philips-MCM-760-Service-Manual(1) 电路图 维修手册.pdf

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1、MCM760 All Versions Copyright 2008 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the

2、 prior permission of Philips. Published by SL 0828 Service Audio Printed in The Netherlands Subject to modification Micro System Version 1.1 CLASS 1 LASER PRODUCT 3141 785 31012 TABLE OF CONTENTS Page Location of PC Boards fr Reparaturen sind Original-Ersatzteile zu verwenden. Sicherheitsbauteile si

3、nd durch das Symbol ! markiert. 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. Componenty di sicurezza sono marcati con ! GB After servicing and before returning set to customer perfo

4、rm 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. 1 - 7 INFORMATION ABOUT LEAD-FREE SOLDERING Philips CE is producing lead-free sets from 1.1.2005 onwards. IDENTIFICATION: Regardless of speci

5、al 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 5&6 is the year, digit 7&8 is the week number, so in this case 2005 wk12 So from 0501 onwards = from 1 Jan 2005 onwards Important no

6、te: In fact also products of year 2004 must be treated in this way as long as you avoid mixing solder-alloys (leaded/ lead-free). So best to always use SAC305 and the higher temperatures belong to this. Due to lead-free technology some rules have to be respected by the workshop during a repair: Use

7、only lead-free solder alloy Philips SAC305 with order code 0622 149 00106. If lead-free solder-paste is required, please contact the manufacturer of your solder-equipment. In general use of solder-paste within workshops should be avoided because paste is not easy to store and to handle. Use only ade

8、quate solder tools applicable for lead-free solder alloy. The solder tool must be able oTo reach at least a solder-temperature of 40 oTo stabilize the adjusted temperature at the solder-tip oTo exchange solder-tips for different applications. Adjust your solder tool so that a temperature around is r

9、eached and stabilized at the solder joint. Heating-time of the solder-joint should not exceed 4 sec. Avoid temperatures above 400otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat. Mix of lead-free

10、 solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free). If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder with ne

11、w solder alloy (SAC305). Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities) has to be purchased at external companies. Special information for BGA-ICs: - always use the 12nc-recognizable soldering temperature profile of the specific BGA (for de-so

12、ldering always use the lead-free temperature profile, in case of doubt) - lead free BGA-ICs will be delivered in so-called dry-packaging (sealed pack including a silica gel pack) to protect the IC against moisture. After opening, dependent of MSL-level seen on indicator-label in the bag, the BGA-IC

13、possibly still has to be baked dry. (MSL=Moisture Sensitivity Level). This will be communicated via AYS-website. Do not re-use BGAs at all. For sets produced before 1.1.2005 (except products of 2004), containing leaded solder-alloy and components, all needed spare-parts will be available till the en

14、d of the service-period. For repair of such sets nothing changes. On our website www.atyourservice.ce.P you find more information to: BGA-de-/soldering (+ baking instructions) Heating-profiles of BGAs and other ICs used in Philips-sets You will find this and more technical information within the mag

15、azine, chapter workshop news. For additional questions please contact your local repair-helpdesk. SERVICE INSTRUCTION 1. Unplug the AC Power cord and connect a wire between the two pins of the AC Power plug. 2. Set the AC Power switch to the on position (keep the AC Power cord unplugged!). 3. Measur

16、e the resistance value between the pins of the AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be larger than 4.5 Mohm (For U.S. it should be between 4.2 Mohm and 12 Mohm). 4. Switch off the set, and remove the wire between the two pins of t

17、he AC Power plug. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: Route the wire trees correctly and fix them with the mounted cable clamps. Check the insulation of the AC Power lead for external

18、 damage. Check the strain relief of the AC Power cord for proper function. Check the electrical DC resistance between the AC Power Plug and the secondary side (only for sets which have a AC Power isolated power supply): Check the cabinet for defects, to avoid touching of any inner parts by the custo

19、mer. 1 - 8 ? ? Warning: ? Never make or change connections with the mains supply switched on. ? Install your set near theAC outlet and where theAC power plug can be reached easily. A? Use the supplied speakers only. Using other speakers can damage the set or the sound quality will be negatively affe

20、cted. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? B? ? 1? ? 2? ? 3? ? ? ? ? ? ? ? 1? ? Note:? ? ? 1? ? ? ? ? ? ? for the devices with USB cable: ? ? ? ? ? for the memory card: ? ? ? ? ? 2? ? ? 3? ? ? ? ? ? ? ? ? 1? ? ? ? 2? ? ? ? CDTUNER USB iR VOLUME BASS TREBLE PLAY/PAUSE TAPE/AUX PRESET AM ANTENNA ?

21、? INSTALLATION 1 - 9 ? ? 1? ? 2? ? ?AUTO INSTALL?PRESS PLAY ? ? ? ? ? ? Helpful hints: ? ? ?Tuner: Clock setting via RDS? ? ?INSTALL?TIME? ?SEARCH RDS TIME ? ?RDS TIME? ? ? ? ?NO RDS TIME ? ? ? CAUTION Visible and invisible laser radiation. If the cover is open, do not look at the beam. High voltage

22、! Do not open.You run the risk of getting an electric shock. The machine does not contain any user- serviceable parts. Modification of the product could result in hazardous radiation of EMC or other unsafe operation. If you disconnect the product from the mains, make sure to take the plug out of the

23、 wall socket completely. Children could seriously injure themselves as the free end of the cable may still be live if only the connector is removed from the MAINS socket at the back of the unit. 3? ? Helpful hints: ? ? ? ? ?To disconnect the system from the power supply completely, remove the power

24、plug from the wall socket. The type plate is located on the rear of the set. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Helpful hints: ? ? ? ? ? ? ? ? ?Tuner: Clock setting via RDS? ? ? Always point the remote control directly towards IR area. Notes for remote control: First select the so

25、urce 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,). ? ? ? ? ? ?+?-? ? ? 1 3 2 ? ? ? ? ? ? ? ? ? ? ? CDTUNER REPEATPROGRAM TAPE A/BDISPLAY/CLOCK SHUFFLE TAPEAUX STANDBY TAPE RECUSB RECUSB DEL

26、SNOOZE PRESET ALBUM VOL INSTALLATION & PREPARATION 1 - 10 STANDBY-ON ECO POWER TAPE RECORDESOLC/NEPODROCERBSURD S/NEWS OPEN CLOSE WMA-MP3-CD/CD-R/CD-RW COMPATIBLE iR ALBUMSTOP/DEMO VOLUME BASS TREBLE PLAY/PAUSEPRESET USB DIRECT 2 3 4 5 ! 0 9 8 7 6 1 % $ # ? 1? ? ? ? ? ?Red indicator:? ? 2? ? 3? ?Tun

27、er:? ? ? ? ?CD/USB/TAPE/AUX:? ? 4? ? 5? ? 6? ? ? ? ?In standby or Eco Power mode: ? ? ? ? ? ? ?In standby or Eco Power mode: ? ? ? ? ? ?In standby or Eco Power mode: ? ? ? ? ? ? ?In standby or Eco Power mode: ? ? ? 7? ? 8? ? 9nnnnn ? Helpful hints: ? ? ? ? ? ? 0? ? !? ? ? #? ? ?CD/USB:? ?TUNER:? ?TA

28、PE:? ? ?CD/USB:? ?CD:? ?TUNER:? ?TAPE:? ?CLOCK:? ? ?CD/USB:? ?TAPE:? ?CLOCK:? ? ? ? ? ?CD/USB:? ? ?TUNER: ? ? ?TAPE:? ?In standby or Eco Power mode:? ? $ ? %? ? Helpful hints: ? ? CONTROLS 1 - 11 ? ? ? ? ?In standby or Eco Power mode: ? ? ? 3? ?CD/USB:? ?Tuner:? 4? ?Clock:? ? ? ? ?TUNER/Audio CD: ? ? ? ?MP3/WMA files: ? ?