Philips MCB279/05 Service Manual
Philips MCB279/05 Service Manual

Philips MCB279/05 Service Manual

Dab micro system
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DAB Micro System
©
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 prior permission of Philips.
Published by SL 0821 Service Audio
Version 1.0
TABLE OF CONTENTS
PCBs Location & Version Variations ..................................... 1-2
Specifi cations ....................................................................... 1-3
Measurement Setup ............................................................. 1-4
Service Aids, Safety Instruction, etc ...........................1-5 to 1-7
Software Version Checking ..................................................... 2
Set Block Diagram ................................................................... 3
Set Wiring Diagram ................................................................. 4
Main Board .............................................................................. 5
MCU Board .............................................................................. 6
Key Board ................................................................................ 7
Power AMP Board ................................................................... 8
CD Board ................................................................................. 9
Headphone & Motor & Door Switch Board ............................ 10
Set Mechanical Exploded View & Parts List .......................... 11
Printed in The Netherlands
Subject to modification
MCB279
Page
CLASS 1
LASER PRODUCT
© 3141 785 32860
/05

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Summary of Contents for Philips MCB279/05

  • Page 1 LASER PRODUCT © 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 prior permission of Philips.
  • Page 2: Pcbs Location

    1 - 2 PCBS LOCATION MOTOR BOARD POWER AMP BOARD HEADPHONE BOARD MCU BOARD CD BOARD MAIN BOARD KEY BOARD VERSION VARIATIONS Type /Versions: MCB279 Service policy Board in used: MAIN BOARD CD BOARD POWER AMP BOARD KEY BOARD HEADPHONE BOARD DAB MODULE MOTOR BOARD MCU BOARD...
  • Page 3: Specifications

    1 - 3 SPECIFICATIONS AMPLIFIER USB PLAYER Output power ..........30 W RMS USB ................. V2.0/ V1.1 Signal-to-noise ratio ........65 dBA ......... support MP3 and WMA files Frequency response ..... 100 – 18kHz, ± 3 dB Number of albums/ folders ..... maximum 999 Input sensitivity AUX .......
  • Page 4: Measurement Setup

    1 - 4 MEASUREMENT SETUP Tuner FM Bandpass LF Voltmeter 250Hz-15kHz e.g. PM2534 e.g. 7122 707 48001 RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Tuner AM (MW,LW) Bandpass LF Voltmeter...
  • Page 5: Service Aids

    1 - 5 SERVICE AIDS WARNING All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance.
  • Page 6: Instructions On Cd Playability

    1 - 6 INSTRUCTIONS ON CD PLAYABILITY Customer complaint "CD related problem" Set remains closed! check playability playability ok ? For flap loaders (= access to CD drive possible) "fast" lens cleaning cleaning method is recommended check playability playability ok ? Play a CD for at least 10 minutes check playability...
  • Page 7 1 - 7 INSTRUCTIONS ON CD PLAYABILITY PLAYABILITY CHECK LIQUID LENS CLEANING Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. For sets which are compatible with CD-RW discs This to avoid that little particles make scratches on use CD-RW Printed Audio Disc ....7104 099 96611 the lens.
  • Page 8: Software Version Checking

    2 - 1 2 - 1 SOFTWARE VERSION CHECKING Software checking: 1) MCU version : at standby mode, press and hold "SOURCE" & "PLAY" buttons at the same time. e.g. V2.01 JT3...
  • Page 9: Set Block Diagram

    3 - 1 3 - 1 SET BLOCK DIAGRAM...
  • Page 10: Set Wiring Diagram

    4 - 1 4 - 1 SET WIRING DIAGRAM...
  • Page 11: Main Board

    5 - 1 5 - 1 CIRCUIT DIAGRAM - MAIN BOARD DAB PART...
  • Page 12 5 - 2 5 - 2 CIRCUIT DIAGRAM - MAIN BOARD SUB MCU PART...
  • Page 13 5 - 3 5 - 3 CIRCUIT DIAGRAM - MAIN BOARD TUNER PART...
  • Page 14 5 - 4 5 - 4 CIRCUIT DIAGRAM - MAIN BOARD INTERFACE PART...
  • Page 15 5 - 5 5 - 5 LAYOUT DIAGRAM - MAIN BOARD TOP VIEW...
  • Page 16 5 - 6 5 - 6 LAYOUT DIAGRAM - MAIN BOARD BOTTOM VIEW...
  • Page 17 6 - 1 6 - 1 CIRCUIT DIAGARM - KEY BOARD...
  • Page 18 6 - 2 6 - 2 LAYOUT DIAGARM - KEY BOARD TOP VIEW...
  • Page 19 6 - 3 6 - 3 LAYOUT DIAGARM - KEY BOARD BOTTOM VIEW...
  • Page 20: Mcu Board

    7 - 1 7 - 1 CIRCUIT DIAGARM - MCU BOARD PART 1...
  • Page 21 7 - 2 7 - 2 CIRCUIT DIAGARM - MCU BOARD MEMORY PART...
  • Page 22 7 - 3 7 - 3 LAYOUT DIAGARM - MCU BOARD TOP VIEW...
  • Page 23 7 - 4 7 - 4 LAYOUT DIAGARM - MCU BOARD BOTTOM VIEW...
  • Page 24: Power Amp Board

    8 - 1 8 - 1 CIRCUIT DIAGARM - POWER AMP BOARD PART 1...
  • Page 25 8 - 2 8 - 2 CIRCUIT DIAGARM - POWER AMP BOARD PART 2...
  • Page 26 8 - 3 8 - 3 LAYOUT DIAGARM - POWER AMP BOARD TOP VIEW...
  • Page 27 8 - 4 8 - 4 LAYOUT DIAGARM - POWER AMP BOARD BOTTOM VIEW...
  • Page 28: Cd Board

    9 - 1 9 - 1 CIRCUIT DIAGRAM - CD BOARD PART 1...
  • Page 29 9 - 2 9 - 2 CIRCUIT DIAGRAM - CD BOARD HP AMP PART...
  • Page 30 9 - 3 9 - 3 CIRCUIT DIAGRAM - CD BOARD LCD PART...
  • Page 31 9 - 4 9 - 4 LAYOUT DIAGRAM - CD BOARD TOP VIEW...
  • Page 32 9 - 5 9 - 5 LAYOUT DIAGRAM - CD BOARD BOTTOM VIEW...
  • Page 33 10 - 1 10 - 1 LAYOUT DIAGRAM - HEADPHONE BOARD LAYOUT DIAGRAM - HEADPHONE BOARD TOP VIEW BOTTOM VIEW CIRCUIT DIAGRAM - HEADPHONE BOARD...
  • Page 34 10 - 2 10 - 2 CIRCUIT DIAGRAM - MOTOR BOARD CIRCUIT DIAGRAM - MOTOR BOARD TOP VIEW BOTTOM VIEW CIRCUIT DIAGRAM - MOTOR BOARD...
  • Page 35 10 - 3 10 - 3 CIRCUIT DIAGRAM - DOOR SWITCH BOARD CIRCUIT DIAGRAM - DOOR SWITCH BOARD TOP VIEW BOTTOM VIEW CIRCUIT DIAGRAM - DOOR SWITCH BOARD...
  • Page 36 11 - 1 11 - 1 SET MECHANICAL EXPLODED VIEW 23-26 15 16...
  • Page 37 11 - 2 MECHANICAL & ACCESSORIES PARTS LIST 996510016420 LIGHT GUIDE DISPLAY LENS 5: 996510016415 20P FFC CABLE L200MM P1.0MM 996510016421 CABINET REAR 5: 996510016414 18P FFC CABLE L200MM P1.0MM 996510016422 STAND BASE ANT2 5: 996510016413 16P FFC CABLE 60MM P1.0MM 996510016423 WOODEN SPEAKER (L+R) 996510001906...
  • Page 38: Electrical Parts List

    11 - 3 ELECTRICAL PARTS LIST C812 996510016408 E. CAP. 3300UF 35V 16X36MM Q801 996510010777 TRANSISTOR BC847C FREE CN552 996510003885 USB SOCKET Q802 996510010777 TRANSISTOR BC847C FREE D460 996510010774 DIODE 1N4148 FDLL4148 Q803 996510010777 TRANSISTOR BC847C FREE D461 996510010774 DIODE 1N4148 FDLL4148 Q806 996510016407 TRANSISTOR BC817-40 SOT23...
  • Page 39 11 - 4 ELECTRICAL PARTS LIST 996510003735 X'TAL 24.000MHZ 20PF +/-20PPM ZD601 996510016410 DIODE BZX79-C3V3 SOD27 ZD804 994000005744 ZENER DIODE 5V1 1/2W ZD805 996510012835 ZENER DIODE 5V6 1/2W (TC5V6) Note: Only these parts mentioned in the list are normal service parts.

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