Philips-MC-138-Service-Manual.pdf

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1、MC138/all 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 dia

2、gram 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 . 1

3、0-1.10-2 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 wi

4、thout 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 1 - 1 HANDLING CHIP COMPONENTS WARNING All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careles

5、s 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 wristband with resistance. Keep components and tools at this potential. f ATTENTION Tous les IC et beaucoup dautres semi-conducteurs sont sensib

6、les aux dcharges statiques (ESD). Leur longvite pourrait tre considrablement courte par le fait quaucune prcaution nst prise leur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil et enfileer le bracelet serti dune rsistance de scurit. Veiller ce

7、que les composants ainsi que les outils que lon utilise soient galement ce potentiel. d WARNUNG Alle ICs und viele andere Halbleiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparaturfall kann die Lebensdauer drastisch reduzieren. Sorgen Sie dafr, da

8、Sie im Reparaturfall ber ein Puls- armband mit Widerstand mit dem Massepotential des Gertes verbunden sind. Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem Potential. WAARSCHUWING Alle ICs en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behan

9、delen tijdens reparatie kan de levensduur drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal. i AVVERTIMENTO Tutti IC e parec

10、chi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevit potrebbe essere fortemente ridatta in caso di non osservazione della pi grande cauzione alla loro manipolazione. Durante le riparationi occorre quindi essere collegato allo stesso potenziale che quello della massa delp

11、parecchio 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

12、 components are marked by the symbol i Le norme di sicurezza estigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambiago identici a quelli specificati. Componenty di sicurezza sono marcati con Veiligheidsbepalingen vereisen, dat het apparaat in zij

13、n oorspronkeliijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. De Veiligheidsonderdelen zijn aangeduid met het symbool s Varning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. Advarsel ! Usynlig laserstr

14、ling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. Varoitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen ! f Pour votre scurite, ces documents doivent tre utiliss par des spcialistes agrs, seuls

15、habilits rparer votre appareil en panne. ESD SAFETY d Bei jeder Reparatur sind die geltenden Sicherheitsvor- schriften zu beachten. Der Originalzustand des Gertes darf nicht verndert werden. Fr Reparaturen sind Original- ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol markiert. f

16、 Les normes de scurit exigent que lappareil soit remis ltat dorigine et que soient utilises les pices de rechange identiques celles spcifies. Les composants de scurit sont marqus CLASS 1 LASER PRODUCT DANGER: Invisible laser radiation when open. After servicing and before returning the set to custom

17、er perform a leakage current measurement test from all exposed metal parts to earth ground, to assure no shock hazard exists. The leakage current must not exceed 0.5mA. AVOID DIRECT EXPOSURE TO BEAM. HANDLING CHIP COMPONENTS 2 - 1 2 - 2 SERVICE MEASUREMENT Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF

18、 Voltmeter e.g. PM2534 DUT RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Tuner FW Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT S/N

19、and distortion meter e.g. Sound Technology ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage. Use a bandpass filter (or at least a high pass filter with 250kHz) to eliminate hum (50Hz, 100Hz). RF

20、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 CDRECORDER Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3) Use Universal Test Cassette Fe SBC420 4822 397 30071 L R LEVEL METER e.g. Sennhei

21、ser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B DUT LF Generator e.g. PM5110 Ri=50 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 3 - 2 Preparations BAntennas Connection Connect the supplied AM loop antenna and FM anten

22、na to the respective terminals. Adjust the position of the antenna for optimal reception. AM Antenna Position the antenna as far as possible from a TV, VCR or other radiation source. Rear connections The type plate is located at the rear of the system. For users in the U.K.: please follow the instru

23、ctions on page 2. APower Before connecting the AC power cord to the wall outlet, ensure that all other connections have been made. WARNING! For optimal performance, use only the original power cable. Never make or change any connections with the power switched on. To avoid overheating of the system,

24、 a safety circuit has been built in. Therefore, your system may switch to Standby mode automatically under extreme conditions. If this happens, let the system cool down before reusing it (not available for all versions). Preparations FM Antenna Extend coil antenna at the back of the unit fully for o

25、ptimum reception. CSpeakers 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. N

26、otes: For optimal sound performance, use the supplied speakers. Do not connect more than one speaker to any one pair of +/- speaker terminals. Do not connect speakers with an impedance lower than the speakers supplied. Please refer to the SPECIFICATIONS section of this manual. Before using the remot

27、e control 1Pull out the plastic protective sheet. 2Select the source you wish to control by pressing one of the source select keys on the remote control (for example CD, TUNER). 3Then select the desired function (for example 2 , , ). A B REPEATSHUFFLESLEEP VOL Replacing battery (lithium CR2025) into

28、 the remote control 1Pull out the knob A slightly to the right. 2Pull out the battery compartment B . 3Replace a new battery and fully insert the battery compartment back to the original position. CAUTION! Batteries contain chemical substances, so they should be disposed off properly. PUSH PULL CONT

29、ROLS AND CONTROLS DISASSEMBLY DIAGRAM 4 - 14 - 1 4 - 2 4 - 2 4 - 34 - 3 4 - 44 - 4 5 - 15 - 1 SET BLOCK DIAGRAM 5 - 25 - 2 SET WIRING DIAGRAM (YD7312) D8227 CIRCUIT DIAGRAM - COMBI BOARD - LCD/KEY/HP/POWER PART 6 - 16 - 1 CIRCUIT DIAGRAM - COMBI BOARD - TUNER PART 6 - 26 - 2 CIRCUIT DIAGRAM - COMBI

30、BOARD - MAIN BOARD PART 6 - 36 - 3 LAYOUT DIAGRAM - COMBI BOARD COMPONET SIDE 6 - 46 - 4 LAYOUT DIAGRAM - COMBI BOARD COPPER SIDE 6 - 56 - 5 CIRCUIT DIAGRAM - CD BOARD 7 - 17 - 1 LAYOUT DIAGRAM - CD BOARD COMPONENT SIDE COPPER SIDE 7 - 27 - 2 CIRCUIT DIAGRAM - CASSETTE BOARD 8 - 18 - 1 8 - 2 LAYOUT

31、DIAGRAM - CASSETTE BOARD ECO- MTF- SD R- 1 98- 12- 15 98- 12- 15 3140 113 31231 ECO- MTF- SD A R P 3140 113 31231 9758 98- 12- 15 C 2730 7702 9754 9755 9762 2703 2710 2711 2731 2732 2733 3732 3747 5701 2734 2760 3742 71 74 37203721 3735 9757 1707 9751 2727 9756 9701 9702 9703 9705 9707 3733 3744 376

32、1 3762 6704 7705 3712 3713 3716 3719 3730 3731 2723 2726 2750 2751 3706 3707 3711 2713 2715 2716 2720 2721 2722 2700 2707 2708 2709 2712 3726 3727 3743 6715 7703 7704 9760 2704 2706 2719 2735 3701 3710 27383734 72 9706 9752 9753 9759 9761 3740 3748 3749 3750 7701 3703 3704 3714 3722 3723 3736 3737 3

33、738 27012714 2728 2729 2739 2740 1702 1709 17211722 1725 1701 3724 3728 3739 73 RSH +M RW 2717 2718 - M YSH 12345 12345 D C B A D C B A 71 A 1 72 D 5 73 A 5 74 A 1 1701 A 5 1702 B 5 1707 D 3 1709 C 5 1721 B 5 1722 B 5 1725 C 5 2700 B 4 2701 B 5 2703 C 2 2704 A 3 2706 A 3 2707 B 2 2708 B 4 2709 C 3 2

34、710 B 1 2711 B 2 2712 D 1 2713 B 3 2714 B 4 2715 B 3 2716 B 3 2717 C 3 2718 B 3 2719 A 3 2720 C 3 2721 C 4 2722 C 2 2723 C 2 2726 C 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

35、 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 3739 A 5 3740 B 4 3742 B 1 3743 A 2 3744 B 2 3747 B 1 3748 D 4 3749 C

36、5 3750 D 4 3761 C 2 3762 B 3 5701 C 1 6704 B 2 6715 A 2 7701 B 4 7702 B 1 7703 A 4 7704 A 4 7705 B 3 9701 D 2 9702 D 3 9703 D 3 9705 C 4 9706 D 5 9707 C 2 9751 D 3 9752 D 5 9753 D 5 9754 C 1 9755 D 1 9756 C 3 9757 D 3 9759 D 4 9760 A 2 9761 B 5 9762 D 1 T701 C 5 T702 C 5 T705 B 5 T706 B 5 T709 A 5 T

37、710 C 1 T711 B 5 T712 C 2 T713 A 5 T714 D 5 T715 D 5 T716 D 1 T719 B 1 T720 A 5 T721 C 5 T722 C 2 T725 D 2 T7707 A 4 T7708 A 4 CASSETTE ADJUSTMENT AdjustmentCassetteSK .Deck 1MeasureReadAdjustAdjust ononwithto Left hand Azimuth 10 kHz SBC420* SBC420* TapePlayH/P JackmV meterScrewmax. R/P head 3150 k

38、Hz Wow and TapePlayH/P Jackflutter Preset in motor *a meter *a The maximum permissible speed deviation is 3%. * SBC420 : 4822 397 30071 Morever, the wow and flutter value can be read. Motor Speed 8 - 2 9 - 19 - 1 SET EXPLODED VIEW DIAGRAM DESCRIPTIONQUANTITY SCREW LIST 4 8 7 6 27 13 -1 9 12 26 26 24

39、 17 24 11 14 16 21 19 22 23 18 22 ITEM 28 13 -6 29 10 - 1 MECHANICAIL & ACCESSORIES PARTSLIST 19940 000 01497COSMETIC PANEL9940 000 01344SPEAKER BOX 3W MC138 W/MID 29940 000 00397LENS9940 000 01345REMOTE CONTROL UNIT MC138 39940 000 01496LCD CHAMFER9940 000 00509AM LOOP ANT 49940 000 00395KEYSET TOP

40、 69940 000 01498CASSETTE PANEL 79940 000 00402CASSETTE DOOR 89940 000 01494FRONT CABINET 99940 000 00399KNOB PLAY 119940 000 00401KNOB VOLUME 129940 000 01488LCD PWB ASSEMBLY MC138 13-19940 000 00404CASSETTE KEY RECORD 13-29940 000 00405CASSETTE KEY PLAY 13-39940 000 00406CASSETTE KEY REVERSE 13-499

41、40 000 00407CASSETTE KEY FORWARD 13-59940 000 00408CASSETTE KEY STOP/OPEN 13-69940 000 00409CASSETTE KEY PAUSE 149940 000 01493CASS DECK CS-21SC-820S 16POWER TRANSFORMER AC120V 179940 000 00381CD MECHANISM DA11B3N 189940 000 00392REAR CABINET 199940 000 00502CD DOOR SPRING 219940 000 01495CD DOOR 22

42、9940 000 00501DAMPER GEAR ASSEMBLY 239940 000 00394CD TRAY 249940 000 00505CD DAMPER 658 TA 30 269940 000 00506CD DAMPER 658 TB 40 279940 000 00503CASSETTE DOOR SPRING 289940 000 00379CD DOOR SW DLS-02-W-1 10 - 2 ELECTRICAL PARTSLIST VC4029940 000 00378TRIMMER CAP 10pF +50%-0% VC4039940 000 00378TRI

43、MMER CAP 10pF +50%-0% D4079940 000 00376VARIABLE CAP DIODE, BB804 D4089940 000 00376VARIABLE CAP DIODE, BB804 U4029940 000 00375VARIABLE CAP DIODE U1009940 000 00369IC L7806CV REGULATOR U1029940 000 00372IC P87C54X2BDH U49940 000 00564IC SAA7379HL U4019351 740 80557IC SM TEA5757H/V1 U99940 000 00565

44、IC D9258 MOTOR DRIVER 77059940 000 01634IC YD7312CP PREAMP. 17079940 000 00389REC SWITCH 18PIN S3009940 000 00568TACT SWITCH S3019940 000 00568TACT SWITCH S3029940 000 00568TACT SWITCH S3039940 000 00568TACT SWITCH S3049940 000 00568TACT SWITCH S3059940 000 00568TACT SWITCH S3069940 000 00568TACT SW

45、ITCH S3079940 000 00568TACT SWITCH S3089940 000 00568TACT SWITCH S3099940 000 00568TACT SWITCH S3109940 000 00568TACT SWITCH S3119940 000 00568TACT SWITCH S3129940 000 00568TACT SWITCH S3149940 000 00568TACT SWITCH S3159940 000 00568TACT SWITCH HP8009940 000 00386HP JACK MSJ-2000 SP-JK9940 000 00511

46、SP TERMINAL MSP-134V-05 9940 000 00373FFC CABLE 16PIN P1.0 L70 F701!9940 000 00637FUSE PTU 1A 250V F702!9940 000 01492FUSE SGP 1.25A 250V !9940 000 01491TRANSFORMER AC120V !9940 000 02209TRANSFORMER AC120/230V !9940 000 02224TRANSFORMER 230V !9940 000 01489POWER AC WIRE UL (/77) !9940 000 02223POWER AC WIRE BS (/25) !9940 000 02225POWER AC WIRE AR (/77) !9940 000 00382POWER AC WIRE VDE (/21) 11 - 1 REVISION LIST Version 1.0 (3140 785 30320) Initial Release MC138/37 Version