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MC138/

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TABLE OF CONTENTS

 Page

Handling chip components ...........................................1-1

Technical Specifications ...............................................2-1

Service Tool ..................................................................2-1

Measurement setup .....................................................2-2

Connections and Controls ................................... 3-1.. 3-2

Disassembly diagram ...................................................4-1

Pin description of ICs ...........................................4-2 ..4-4

Set Block diagram ........................................................5-1

Set Wiring diagram .......................................................5-2

Combi board - Circuit diagram

   LCD/HP/KEY/POWER board ....................................6-1

   Tuner board ...............................................................6-2

   Main board ................................................................6-3

Combi borad - Layout diagram ...........................6-4 .. 6-5

CD board - Circuit diagram ..........................................7-1

CD board - Layout diagram ..........................................7-2 

Cassette board - Circuit diagram .................................8-1

Cassette board - Layout diagram .................................8-2

Set Mechanical Exploded view  ...................................9-1

Service parts list ............................................... 10-1..10-2

Revision list ................................................................11-1

©

 Copyright 2005 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 YM 0519 Service Audio 

Printed in The Netherlands 

Subject to modification

Micro System

Version 1.1

©

 3141 785 30321

Summary of Contents for MC138 series

Page 1: ...m 7 1 CD board Layout diagram 7 2 Cassette board Circuit diagram 8 1 Cassette board Layout diagram 8 2 Set Mechanical Exploded view 9 1 Service parts list 10 1 10 2 Revision list 11 1 Copyright 2005 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 elec...

Page 2: ...llo stesso potenziale che quello della massa delápparecchio tramite un braccialetto a resistenza Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used Safety components are marked by the symbol i Le norme di si...

Page 3: ...2 1 ...

Page 4: ... 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250kHz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50 L R LEVEL METER e g Sennheiser UPM550 with FF filter S N and distortion meter e g Sound Technology ST1700B DUT CD RECORDER Use Audio Signal Disc SBC429 48...

Page 5: ...3 1 1 2 6 3 4 5 9 0 7 8 CD CD R CD RW COMPATIBLE 0 1 2 3 5 7 CONTROLS AND CONTROLS ...

Page 6: ... reception C Speakers Connection Front Speakers Connect the speaker wires to the SPEAKERS terminals right speaker to RIGHT and left speaker to LEFT coloured marked wire to and black unmarked wire to Fully insert the stripped portion of the speaker wire into the terminal as shown Notes For optimal sound performance use the supplied speakers Do not connect more than one speaker to any one pair of sp...

Page 7: ...DISASSEMBLY DIAGRAM 4 1 4 1 ...

Page 8: ...4 2 4 2 ...

Page 9: ...4 3 4 3 ...

Page 10: ...4 4 4 4 ...

Page 11: ...5 1 5 1 SET BLOCK DIAGRAM ...

Page 12: ...5 2 5 2 SET WIRING DIAGRAM YD7312 D8227 ...

Page 13: ...CIRCUIT DIAGRAM COMBI BOARD LCD KEY HP POWER PART 6 1 6 1 ...

Page 14: ...CIRCUIT DIAGRAM COMBI BOARD TUNER PART 6 2 6 2 ...

Page 15: ...CIRCUIT DIAGRAM COMBI BOARD MAIN BOARD PART 6 3 6 3 ...

Page 16: ...LAYOUT DIAGRAM COMBI BOARD COMPONET SIDE 6 4 6 4 ...

Page 17: ...LAYOUT DIAGRAM COMBI BOARD COPPER SIDE 6 5 6 5 ...

Page 18: ...CIRCUIT DIAGRAM CD BOARD 7 1 7 1 ...

Page 19: ...LAYOUT DIAGRAM CD BOARD COMPONENT SIDE COPPER SIDE 7 2 7 2 ...

Page 20: ...CIRCUIT DIAGRAM CASSETTE BOARD 8 1 8 1 ...

Page 21: ... 2 2727 D 2 2728 C 5 2729 C 5 2730 D 1 2731 C 1 2732 B 1 2733 C 1 2734 A 1 2735 A 1 2738 D 4 2739 C 4 2740 C 4 2750 B 3 2751 C 2 2760 A 2 3701 A 2 3703 B 4 3704 B 4 3706 B 3 3707 B 2 3710 A 3 3711 C 3 3712 D 1 3713 C 3 3714 C 4 3716 C 3 3719 C 2 3720 D 2 3721 D 3 3722 D 5 3723 C 5 3724 A 5 3726 A 3 3727 A 3 3728 A 4 3730 B 1 3731 B 1 3732 B 1 3733 B 2 3734 D 5 3735 D 3 3736 B 5 3737 C 5 3738 C 5 3...

Page 22: ...9 1 9 1 SET EXPLODED VIEW DIAGRAM DESCRIPTION QUANTITY SCREW LIST 4 8 7 6 27 13 1 9 12 26 26 24 17 24 11 14 16 21 19 22 23 18 22 ITEM 28 13 6 29 ...

Page 23: ...1 9940 000 00404 CASSETTE KEY RECORD 13 2 9940 000 00405 CASSETTE KEY PLAY 13 3 9940 000 00406 CASSETTE KEY REVERSE 13 4 9940 000 00407 CASSETTE KEY FORWARD 13 5 9940 000 00408 CASSETTE KEY STOP OPEN 13 6 9940 000 00409 CASSETTE KEY PAUSE 14 9940 000 01493 CASS DECK CS 21SC 820S 16 POWER TRANSFORMER AC120V 17 9940 000 00381 CD MECHANISM DA11B3N 18 9940 000 00392 REAR CABINET 19 9940 000 00502 CD D...

Page 24: ...00568 TACT SWITCH S304 9940 000 00568 TACT SWITCH S305 9940 000 00568 TACT SWITCH S306 9940 000 00568 TACT SWITCH S307 9940 000 00568 TACT SWITCH S308 9940 000 00568 TACT SWITCH S309 9940 000 00568 TACT SWITCH S310 9940 000 00568 TACT SWITCH S311 9940 000 00568 TACT SWITCH S312 9940 000 00568 TACT SWITCH S314 9940 000 00568 TACT SWITCH S315 9940 000 00568 TACT SWITCH HP800 9940 000 00386 HP JACK M...

Page 25: ... 1 REVISION LIST Version 1 0 3140 785 30320 Initial Release MC138 37 Version 1 1 3140 785 30321 Introduction of MC138 21 25 77 Page 2 1 Technical Specification adapted Page 10 1 Service Parts List adapted ...

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