Philips MCM8 CD Shelf System Owners Manuals, User Guides, Instructional Help Documents & Operating Information - Philips-MCM8%3A25service.pdf
Citation
Micro System
MCM8/21/22/25
Service Service Service
Service Manual TABLE OF CONTENTS Page Location of pc boards & Version variations ................ 1-2 Technical Specifications ............................................. 1-3 Measurement setup .................................................... 1-4 Service Aids, Safety Instruction, etc. .......................... 1-5 Disassembly Instructions & Service positions .............. 2 Service Test Program ................................................. 3-1 Set Block diagram ...................................................... 4-1 Set Wiring diagram ..................................................... 5-1 Front Board .................................................................... 6 ECO6 Tuner Board : Systems Non-Cenelec ............. 7A Systems Cenelec ..................... 7B ETF8 Tape Module ........................................................ 9 Universal Loader ......................................................... 10 Power 2003 Module (75-150W Class D) ..................... 11 Set Mechanical Exploded view & parts list ................. 12 Revision List ................................................................ 13
©
Copyright 2004 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
CLASS 1 LASER PRODUCT
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 BB 0412 Service Audio
Version 1.1
Printed in The Netherlands
Subject to modification
GB
3139 785 30621
1-2
LOCATION OF PC BOARDS ETF8 SD Board
Tuner Board
Display Board
Eeprom Board
Mains Board
CD Board MP3 CD03 Board
Top Key Board
Control Board
Combi Board
Tray Motor Board
VERSION VARIATIONS: Type /Versions:
MCM8
Features & Board in used:
/21
/22
/25
Aux in / CDR in Line Out
x
x
x
x
x
Video Out Surround Out Subwoofer Out Digital Out Digital in Matrix Surround RDS/NEWS Dolby Pro Logic (DPL) Incredible Surround Karaoke Features
x
x
x
Voltage Selector ECO Power Standby (Clock Display Off)
x x
x
x
ECO6 Tuner Board - Systems Non-Cenelec ECO6 Tuner Board - Systems Cenelec
x x
x
1-3 SPECIFICATIONS
Input sensitivity
GENERAL:
Aux in (at 1kHz) : 500mV at 600 ohm
Mains voltage : 110-127V/220-240V Switchable for /21/21M 120V for /37 220V for /33 220-230V for /22/25 Mains frequency
230-240V for /30 : 50/60Hz
Power consumption
: 60W at 1/8 Prated 65W at 1/8 Prated /21/21M
< 1.0W at ECO Standby /21/21M : < 4 seconds per day
Dimension centre unit : 175 x 252 x 350mm
CASSETTE RECORDER: Number of track
: 2 tracks (stereo)
Tape speed Wow and flutter
: 4.76 cm/sec ± 2% : < 0.4% DIN
Fast-wind/Rewind time C60 Bias system
: 130 sec : 78kHz ± 10kHz
Rec/Pb frequency response within 8dB : 80Hz - 10kHz Signal to Noise Ratio (Type I) : > 48dBA
TUNER: FM
Signal to Noise Ratio (Type II)
Tuning range Grid
: 87.5-108MHz : 50kHz
IF frequency
100kHz for /37 : 10.7MHz ± 25kHz
Aerial input
: 75 ohm coaxial 300 ohm click fit for /37
Sensitivity at 26dB S/N Selectivity at 600kHz bandwidth
: < 7uV : > 25dB
Image rejection Distortion at RF=1mV, dev. 75kHz
: > 25dB [> 75dB] : < 3%
-3dB Limiting point Crosstalk at RF=1mV, dev. 40kHz
: < 8uV : > 18dB
Tuning range
: 531-1602kHz 530-1700kHz for /21/21M/37
Grid
: 9kHz 10kHz for /21/21M/37
IF frequency Aerial input
: 450kHz ± 1kHz : Frame aerial
Sensitivity at 26dB S/N Selectivity at 18kHz bandwidth
: < 4.4mV/M : > 18dB
IF rejection Image rejection
: > 45dB : > 28dB
Distortion at RF=50mV, M=80%
: < 5%
AMPLIFIER: Output power (6 ohm, 1kHz, 10% THD) : 2 x 75W RMS
Frequency response within -3dB : 50Hz-16kHz Bass : 60Hz ± 3 Steps Treble Incredible Surround
: 12kHz ± 3 Steps : On / Off
: > 52dBA
COMPACT DISC: Measurement done directly at the connector on the board. Output Resistance Output Voltage (0dB, 1kHz)
: < 100 ohm : 0.5Vrms ± 1dB (unloaded)
Channel Unbalance Channel Separation (1kHz)
: < ±1dB : >