Philips-MCM-2050-Service-Manual(1) 电路图 维修手册.pdf

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1、Version 1.0 3142 785 36560 Micro music system Published by LZ1129 Service Audio Subject to modification Copyright 2011 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

2、form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. CONTENTS 5-1 . . 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .no i tac i f i ceps l a c i nhceT Version Varia

3、tion.2-1 Block diagram.3-1 Wiring diagram .3-2 LCD + DC + MP3 + KEY board Layout diagram.4-2 4-3 MAIN board Circuit diagram .5-1 Layout diagram.5-2.5-3 Exploded view diagram .6-1 Circuit diagram .4-1 MCM2050/05/12 RadioFans.CN 收音机爱 好者资料库 TECHNICAL SPECIFICATION 1-1 6 GENERAL DESCRIPTION Micro Hi-Fi

4、System with PLL Tuner , CD-MP3, USB 10W * 2 MP3 LINK , Remote Control X 7 LIFETIME : 7 Years ClassTunerSupply + AmplifierLoudspeaker BoxesClock MP3 LINKCDUSB XX IX X III IIXX 810 SAFETY requirements VersionSafetyEMC Page94,54 /12/05/ 79EN55013IEC60065 RADIATION / IMMUNITY requirments ( EMC ) ALL cli

5、mates: + 5 Dregree till + 35 Degree MODERATE climates: + N.A till N.A Degree CLIMATIC requirements PERFORMANCE CLASSES POWER SUPPLY MAINS ( A.C. )100/240 Vac(AC/DC Adaptor) Version/12/05/79 Voltage SelectionNO Frequency60/50Hz POWER CONSUMER MCM2050/12/05/79 ( DEMO mode OFF ) , NOM. A, INPUT Stadby

6、: 1/8 Prated , NOM. A, INPUT Maximum :/ Q and R according to Product Division Rules Quality : 0.4 % ( Major ) 1.5 % ( Mirror ) Reliability : 2.0 % ( C 42 ) ECO Power mode :/ Tested according to General Test Instruction refer to PHILIPS standary ( UAN -D1591 ) Measured according to PHILIPS standary (

7、 UAN - L1059 ) unless other wise stated All not mentioned date, please refer to PHILIPS standary ( XUW - 0010 - jun 2001) RadioFans.CN 收音机爱 好者资料库 1-2 TECHNICAL SPECIFICATION : : : : : TECHNIAL DESCRIPTION Total power 20W, matching LOUDSPEAKER of 2 x6 R. TWO INPUT SOURCE, ( Digital Sound Control ) GE

8、NERAL PART Standby Mode Indicator : LCD display Clock active, LED backlight turn ON OUTPUT stage Protection : Yes Temperature : YES Shorcircuit : Yes LoudSpeaker D.C. Protection : Yes. INDICATORS Hum ( Volume Minimun - )= 60dBA ( A - weighted ) ( 100 - 16,000 Hz )= 55dBA ( A - weighted ) Frequency R

9、esponse ( 5dB+/- 3dB ), reference 1kHz100Hz - 16kHz THD + Noise ( 0dB, 1Khz )= 35 dB ( 0 dB, 1 KHz )= 40 dB Output Resistance = 1.5 kOhm Output Voltage RL = 33 k ohm ( )dB, 1 Khz )830mVrms +/- 1.5dB Channel Unbalance = +/- 3 dB GENERAL PART Measurement are directly done at the connector on CDC board

10、 DescriptionSpecification TECHNIAL DESCRIPTION USB See also SH 190 USB Audio Module (300605) Measurment are directly done at the coonector on the board TECHNIAL DESCRIPTION CD + MP3 - Part Specifications CD mechnism refer to Philips standard specification Measurement are directly done at the connect

11、or on CDC board GENERAL PART DescriptionExternNomLimUnit Ohms Output Voltage - Unloaded ( 0dB , 1 kHz )No0.5 1Vrms Output ResistanceNo 100 dB Frequency Response ( 125 Hz - 16 kHz )No5 3dB Channel UnbalanceNo 2 dB Signal to Noise Ratio ( A - weighted )Yes6555dBA Signal to Noise Ratio ( Unweighted )Ye

12、s6050 dB Crosstalk ( 125Hz to 16kHz ) No3630dB Crosstalk ( 1kHz )Yes6555 nW Emphasis -/ Hum 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 sp

13、ecificati. 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 radiati

14、on when 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

15、 ved bning 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

16、you are qualified to do so. 2-2 SET BLOCK DIAGRAM 3 - 13 - 1 WIRE CONNECT DIAGRAM 3-23-2 4 - 14 - 1 CIRCUIT DIAGRAM - LCD + DC + MP3 + KEY BOARD 4 - 24 - 2 LAYOUT DIAGARM - LCD + DC + MP3 + KEY BOARD TOP SIDE VIEW LAYOUT DIAGARM - LCD + DC + MP3 + KEY BOARD BOTTOM SIDE VIEW 4 - 34 - 3 CIRCUIT DIAGARM -MAIN BOARD 5-15-1 LAYOUT DIAGARM -MAIN BOARD TOP SIDE VIEW 5-25-2 LAYOUT DIAGARM - MAIN BOARD BOTTOM SIDE VIEW 5-35-3 EXPLODED VIEW DIAGRAM 6-16-1 11 10 12 9 6 5 7 84 15 SPK PCBA1 13 PCBA3 PCBA5 29 31 30 18 PCBA4 20 21 19 2 22 3 23 24 26 25 28 PCBA2 17