File name Philips-MMX450 rec.pdfDIGITALE A/V SURROUND RECEIVER
MMX450/37 MFX450/17
Service Manual
TABLE OF CONTENTS
Page Location Boards / System info ... 1-2 Technical Specification ... 1-3 Service Tool / Measurement setup / Safety ... 1-4 Warning / Handling Chip components ... 1-5 Abbreviations ... 2 Block diagram ... 3 Dismantling hints / Service positions ... 4-1 Wiring diagram ... 4-3 Service Test program ... 5 Front Board ... 6 ECO 5 Tuner diagram ... 7 Multi-Channel Decoding Module ... 8 Mains Board ... 9 Mono Board ... 10 Exploded view ... 11 Exploded view partslist ... 12 Electrical partslist Mono Board ... 13
Safety regulations require that the set be restored to its original condition and that parts which are indentical with those specified be used. 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 system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by MD 0309 Service Audio Printed in the Netherlands Subject to modification
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1-2
LOCATION OF PRINTED CIRCUIT BOARDS
Screw Terminal Mains Board P50 & Subw. & Video Selector Board
Tuner Board MDM Board
Secondary Trafo Board
Mono Board
Headphone Board
Front Board
1-3
SPECIFICATION
General
Mains voltage Mains frequency Power concumption Dimension. wxhxd Remote control : 120V : 60Hz : 2W at stby : 435x138x350 mm : Multibrand/Universal
Tone controle
Loudness (volume -30dB Ref: 1kHz=0dB) : 100Hz : 10kHz +6 dB +2,5 dB +9dB +9dB 10kHz 0 +4 -2 +2 +6
Tone control (Ref: 1kHz=0dB) : Bass 100Hz -9dB : Treble 10kHz -9dB DSC settings Personal Movie Speech Music Multimedia 100Hz 0 +4 - 4 +4 +7 1kHz 0 +2 +1 -1 +3
Amplifier
Output power Stereo mode (L+R) Surround mode L+R Center Surround Left+Right Distortion (5W) 1kHz 40Hz - 20kHz Headphone Output level : 2x50W FTC (40Hz-20kHz, 0,7%THD, 6) : 2x60W (1kHz, 0,7%THD, 6) : |