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Philips MCB279 Service Manual
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Philips MCB279 Service Manual

Dab micro sytstem
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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
All manuals and user guides at all-guides.com
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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  • 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

    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...

  • Page 3: Specifications

    All manuals and user guides at all-guides.com 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 .....

  • Page 4: Measurement Setup

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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...

  • Page 7: Customer Information

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 3 - 1 3 - 1 SET BLOCK DIAGRAM...

  • Page 10: Set Wiring Diagram

    All manuals and user guides at all-guides.com 4 - 1 4 - 1 SET WIRING DIAGRAM...
  • Page 11 All manuals and user guides at all-guides.com 5 - 1 5 - 1 CIRCUIT DIAGRAM - MAIN BOARD DAB PART...
  • Page 12 All manuals and user guides at all-guides.com 5 - 2 5 - 2 CIRCUIT DIAGRAM - MAIN BOARD SUB MCU PART...
  • Page 13 All manuals and user guides at all-guides.com 5 - 3 5 - 3 CIRCUIT DIAGRAM - MAIN BOARD TUNER PART...
  • Page 14 All manuals and user guides at all-guides.com 5 - 4 5 - 4 CIRCUIT DIAGRAM - MAIN BOARD INTERFACE PART...
  • Page 15 All manuals and user guides at all-guides.com 5 - 5 5 - 5 LAYOUT DIAGRAM - MAIN BOARD TOP VIEW...
  • Page 16 All manuals and user guides at all-guides.com 5 - 6 5 - 6 LAYOUT DIAGRAM - MAIN BOARD BOTTOM VIEW...
  • Page 17 All manuals and user guides at all-guides.com 6 - 1 6 - 1 CIRCUIT DIAGARM - KEY BOARD...
  • Page 18 All manuals and user guides at all-guides.com 6 - 2 6 - 2 LAYOUT DIAGARM - KEY BOARD TOP VIEW...
  • Page 19 All manuals and user guides at all-guides.com 6 - 3 6 - 3 LAYOUT DIAGARM - KEY BOARD BOTTOM VIEW...
  • Page 20 All manuals and user guides at all-guides.com 7 - 1 7 - 1 CIRCUIT DIAGARM - MCU BOARD PART 1...
  • Page 21 All manuals and user guides at all-guides.com 7 - 2 7 - 2 CIRCUIT DIAGARM - MCU BOARD MEMORY PART...
  • Page 22 All manuals and user guides at all-guides.com 7 - 3 7 - 3 LAYOUT DIAGARM - MCU BOARD TOP VIEW...
  • Page 23 All manuals and user guides at all-guides.com 7 - 4 7 - 4 LAYOUT DIAGARM - MCU BOARD BOTTOM VIEW...
  • Page 24 All manuals and user guides at all-guides.com 8 - 1 8 - 1 CIRCUIT DIAGARM - POWER AMP BOARD PART 1...
  • Page 25 All manuals and user guides at all-guides.com 8 - 2 8 - 2 CIRCUIT DIAGARM - POWER AMP BOARD PART 2...
  • Page 26 All manuals and user guides at all-guides.com 8 - 3 8 - 3 LAYOUT DIAGARM - POWER AMP BOARD TOP VIEW...
  • Page 27 All manuals and user guides at all-guides.com 8 - 4 8 - 4 LAYOUT DIAGARM - POWER AMP BOARD BOTTOM VIEW...
  • Page 28 All manuals and user guides at all-guides.com 9 - 1 9 - 1 CIRCUIT DIAGRAM - CD BOARD PART 1...
  • Page 29 All manuals and user guides at all-guides.com 9 - 2 9 - 2 CIRCUIT DIAGRAM - CD BOARD HP AMP PART...
  • Page 30 All manuals and user guides at all-guides.com 9 - 3 9 - 3 CIRCUIT DIAGRAM - CD BOARD LCD PART...
  • Page 31 All manuals and user guides at all-guides.com 9 - 4 9 - 4 LAYOUT DIAGRAM - CD BOARD TOP VIEW...
  • Page 32 All manuals and user guides at all-guides.com 9 - 5 9 - 5 LAYOUT DIAGRAM - CD BOARD BOTTOM VIEW...
  • Page 33 All manuals and user guides at all-guides.com 10 - 1 10 - 1 LAYOUT DIAGRAM - HEADPHONE BOARD LAYOUT DIAGRAM - HEADPHONE BOARD TOP VIEW BOTTOM VIEW CIRCUIT DIAGRAM - HEADPHONE BOARD...
  • Page 34 All manuals and user guides at all-guides.com 10 - 2 10 - 2 CIRCUIT DIAGRAM - MOTOR BOARD CIRCUIT DIAGRAM - MOTOR BOARD TOP VIEW BOTTOM VIEW CIRCUIT DIAGRAM - MOTOR BOARD...
  • Page 35 All manuals and user guides at all-guides.com 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: Set Mechanical Exploded View

    All manuals and user guides at all-guides.com 11 - 1 11 - 1 SET MECHANICAL EXPLODED VIEW 23-26 15 16...

  • Page 37: Remote Control

    All manuals and user guides at all-guides.com 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...
  • Page 38 6.5MM DC JACK (DJ32-2) Q816 996500039268 TRANSISTOR KTC-8050C 994000001456 STEREO HEADPHONE JACK SW551 996500039269 TACT SWITCH IC460 996510016411 IC PROGRAMMED FOR MCB279 SW552 996500039269 TACT SWITCH IC461 996510003845 IC LP2950ACZ-3.3 TO-92 SW553 996500039269 TACT SWITCH IC531 996510016296 IC YD7000 SW554 996500039269...
  • Page 39 All manuals and user guides at all-guides.com 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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