Philips MCM2050/05 Service Manual
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Micro music system
CONTENTS
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Version Variation.............................................................................2-1
Block diagram................................................................................3-1
Wiring diagram ..............................................................................3-2
LCD + DC + MP3 + KEY board
Circuit diagram ..........................................................................4-1
Layout diagram..................................................................4-2 4-3
MAIN board
Circuit diagram .........................................................................5-1
Layout diagram..................................................................5-2..5-3
©
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 form or by any means, electronic, mechanical, photocopying,
or otherwise without the prior permission of Philips.
Published by LZ1129 Service Audio
Version 1.0
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Subject to modification
Exploded view diagram .................................................................6-1
. 1
1 .
5 -
MCM2050/05/12
3142 785 36560

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Summary of Contents for Philips MCM2050/05

  • Page 1 Layout diagram..............5-2..5-3 © 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 form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
  • Page 2: Technical Specification

    Tested according to General Test Instruction refer to PHILIPS standary ( UAN -D1591 ) Measured according to PHILIPS standary ( UAN - L1059 ) unless other wise stated All not mentioned date, please refer to PHILIPS standary ( XUW - 0010 - jun 2001)
  • Page 3 TECHNICAL SPECIFICATION TECHNIAL DESCRIPTION Total power 20W, matching LOUDSPEAKER of 2 x6 R. TWO INPUT SOURCE, ( Digital Sound Control ) GENERAL PART OUTPUT stage Protection : Yes Temperature : YES Shorcircuit : Yes LoudSpeaker D.C. Protection : Yes. INDICATORS Standby Mode Indicator : LCD display Clock active, LED backlight turn ON ECO Mode Indiicator...
  • Page 4: Audio Signal Processing

    TECHNICAL SPECIFICATION AUDIO SIGNAL PROCESSING Micro Hi-Fi System with PLL Tuner ,USB, CD-MP3, 10W/ TWO channel Universal Class D Power Amplifier DSC ( Digital Sound Control ) Input sinewave 500mV at 1kHz to R/L channel of MP3 Link socket Set DSC to Flat mode Adjust volume to obtain 500mW across 6 ohm load at R/L speaker ouput The 500mW will be used as 0dB reference Tabel 1a ( Tolerance ±...
  • Page 5 TECHNICAL SPECIFICATION TECHNIAL DESCRIPTION CD + MP3 - Part Specifications CD mechnism refer to Philips standard specification GENERAL PART Measurement are directly done at the connector on CDC board Description Extern Unit Output Resistance < 100 Ohms Output Voltage - Unloaded ( 0dB , 1 kHz ) ±...
  • Page 6 TECHNICAL SPECIFICATION TECHNIAL DESCRIPTION TUNER using SI4705 GENERAL PART WAVE RANGE TOLERANCE TUNING GRID 87.5 - 108.00 MHz (12/05/79) Quartz Precision 50KHZ AERIAL 75 OHM ANT INDICATORS LCD DISPLAY ELECTRICAL DATA Limit Unit F.M. Limit Unit 23.5 - 3 dB Limiting Point Amplification Reverse Amplification Reverse AGC Figure of Merit...
  • Page 7: Version Variation

    2 - 1 VERSION VARIATION MCM2050 Type /Versions: Service policy Board in used: LCD BOARD Main BOARD KEY BOARD PHONE_MP3 BOARD DC BOARD REMOTE BOARD Type /Versions: MCM2050 Features Feature diffrence VOLTAGE SELECTOR ECO STANDBY - DARK * TIPS : C -- Component Lever Repair. M -- Module Lever Repair -- Used...
  • Page 8: Class 1 Laser Product

    2.0 SAFTETY INSTRUCTIONS WAARSCHUWING WARNING Alle IC’s en vele andere halfgeleiders zijn All ICs and many other semi-conductors are gevoelig voor electrostatische ontladingen susceptible to electrostatic discharges (ESD). (ESD). Careless handling during repair can reduce life Onzorgvuldig behandelen tijdens reparatie kan drastically.
  • Page 9 3 - 1 3 - 1 SET BLOCK DIAGRAM...
  • Page 10 WIRE CONNECT DIAGRAM...
  • Page 11 4 - 1 4 - 1 CIRCUIT DIAGRAM - LCD + DC + MP3 + KEY BOARD...
  • Page 12 4 - 2 4 - 2 LAYOUT DIAGARM - LCD + DC + MP3 + KEY BOARD TOP SIDE VIEW...
  • Page 13 4 - 3 4 - 3 LAYOUT DIAGARM - LCD + DC + MP3 + KEY BOARD BOTTOM SIDE VIEW...
  • Page 14 CIRCUIT DIAGARM -MAIN BOARD...
  • Page 15 LAYOUT DIAGARM -MAIN BOARD TOP SIDE VIEW...
  • Page 16 LAYOUT DIAGARM - MAIN BOARD BOTTOM SIDE VIEW...
  • Page 17 EXPLODED VIEW DIAGRAM PCBA5 PCBA3 PCBA1 PCBA2 PCBA4...

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Mcm2050/12

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