Philips-MCM-275-Service-Manual(1) 电路图 维修手册.pdf

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1、GB CLASS 1 LASER PRODUCT COMPACT DIGITAL AUDIO Service ServiceService ServiceService MCM275 TABLE OF CONTENTS 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, i

2、n any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by SL 0819 Service AudioPrinted in The NetherlandsSubject to modification Micro System 3141 785 30336 Version 1.6 Service Manual all versions From week 714 onwards, the C

3、D Mechanism was changed to Dayang M93. New CD fr Reparaturen sind Original- Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. After servicing and before returni

4、ng set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GB Warning ! Invisible laser radiation when open. Avoid direct exposure to beam.

5、 SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DK Advarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af

6、 funktion. Undg udsaettelse for strling. 1-7 INFORMATION ABOUT LEAD-FREE SOLDERING Philips CE is producing lead-free sets from 1.1.2005 onwards. IDENTIFICATION: Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules: Example S/N: Botto

7、m line of typeplate gives a 14-digit S/N. Digit 5 In standby or Eco Power mode: press and hold to toggle between Standby and ECO POWER mode (power-saving mode) Red indicator: lights up red when the set is switched to ECO POWER mode 2SOURCE selects sound source CD, USB, TUNER or AUX In standby or Eco

8、 Power mode: switches the set on and selects sound source CD, USB, TUNER or AUX 3IR sensor for the infrared remote control Helpful hints: Always point the remote control towards this sensor. 4PUSH OPEN push to unfold or fold the control panel 5CD OPEN CLOSE 0 opens/closes the CD door 6CD door 7VOLUM

9、E adjusts the volume level Clock/Timer: adjusts the hours and minutes 8nnnnn 3.5 mm headphone socket Helpful hints: Adjust the volume to a moderate level before you plug in the headphones. Connecting headphones will switch off the speakers. 9ALBUM/ PRESET + /- CD/USB: selects albums (for MP3/WMA onl

10、y) TUNER: selects a preset radio station 4 / CD/USB: skips or searches CD tracks/titles backwards/forwards Tuner: tunes to radio stations 6 CD/USB: starts or pauses playback 0DBB (Dynamic Bass Boost) turns the bass enhancement on/off !DSC (Digital Sound Control) selects predefined sound settings: RO

11、CK, JAZZ, POP, CLASSIC PROGRAM CD/USB: programs tracks Tuner: programs preset radio stations #STOP CD/USB: stops playback; erase a program $AUX-IN connects to the AUDIO OUT jack on the external appliance % jack for the external USB mass storage device Remote control 7 8 1% $ ! 9 0 # 2 4 5 6 3 USB /

12、AUX selects the audio input from an additional connected appliance In standby or Eco Power mode: switches the set on and selects the audio input from an additional connected appliance 3VOLUME +/- adjusts the volume level Clock/Timer: adjusts the hours and minutes 4TIMER displays the timer setting sw

13、itches the timer on/off enters the timer setting mode (press and hold for more than 2 seconds) 5SLEEP set the sleep timer 6MUTE switches the sound off temporarily 7RDS/NEWS Tuner: selects RDS (Radio Data System) information CD/USB/AUX: activates/deactivates news 8SHUFFLE selects random playback 9REP

14、EAT selects continuous playback 0DSC (Digital Sound Control) selects predefined sound settings: ROCK, JAZZ, POP, CLASSIC !DBB (Dynamic Bass Boost) turns the bass enhancement on/off PROGRAM CD/USB: programs tracks Tuner: programs preset radio stations #DISPLAY/CLOCK Clock: - displays the set time - I

15、n standby mode: enters the clock setting mode (press and hold for more than 2 seconds) TUNER/Audio CD: switches between clock display and playback display MP3/WMA files: displays disc information during playback Notes for remote control: First select the source you wish to control by pressing one of

16、 the source select keys on the remote control (for example CD, TUNER). Then select the desired function (for example,). 1BBBBB press briefly to switch the set on or off (standby/ ECO POWER); In standby or Eco Power mode: press and hold to toggle between Standby and ECO POWER mode (power-saving mode)

17、 2Source buttons USB selects USB source In standby or Eco Power mode: switches the set on and selects USB source. CD selects CD source In standby or Eco Power mode: switches the set on and selects CD source. TUNER selects TUNER source and toggles between the wavebands: FM and MW In standby or Eco Po

18、wer mode: switches the set on and selects TUNER source Controls 1-10 CONTROLS erase a program %OPEN CLOSE opens/closes the CD door Controls Installation Placing MCM275 With the detachable stand and by-packed wall mounting kit , MCM275 allows you to place it in two ways: on desktops with stand or on

19、walls without stand. Mounting stand onto the set MCM275 is equipped with a stand. To mount the stand onto the set, 1Put MCM275 on a flat and firm surface, rear side facing up 2As shown, align the stand to the slots at sets bottom, 4 FRONT facing down PRESS FRONT FRONT PRESS 3 Push the stand down int

20、o the slots When the stand is in place, you will hear a click See Appendix: How to mount your MCM275 onto walls to learn more about wall mounting. Mounting MCM275 onto walls Installation MW loop antenna Speaker (left) Speaker (right) FM wire antenna AC power cord Rear connections Warning: Never make

21、 or change connections with the mains supply switched on. Install your set near the AC outlet and where the AC power plug can be reached easily. ASpeaker connections Use the supplied speakers only. Using other speakers can damage the set or the sound quality will be negatively affected. Connect the

22、cable of the left speaker to LEFT (red and black) and the cable of the right speaker to RIGHT (red and black) as follows: a. Press the clip of the red terminal and fully insert the stripped portion of the colored (or marked) speaker cable into the socket, then release the clip b. Press the clip of t

23、he black terminal and fully insert the stripped portion of the black (or unmarked) speaker cable into the socket, then release the clip BAntenna connections MW antenna 1Assemble the loop antenna as shown: 1-11 CONTROLS TEA5759 FM AM DGND P1 P0 TUNERFGNDMPXIAFO VCC2 IFGNDFSIFMDEM MHA111 BLOCK DIAGRAM

24、 - SELF TUNED RADIO TEA5757 PINNING NOITPIRCSEDNIPLOBMYS tupn i rot i capa c e l pp i r1ELPPIR tupn i FRMA2IFR-MA dnuorg ot t i ucr i c FRMF denut l e l l arap3OFR-MF etar t sbu s dna dnuorg FR4DNGFR dnuorg ot t i ucr i c rota l l i cso-MF denut l e l l arap5CSOMF dnuorg ot t i ucr i c rota l l i cs

25、o-MA denut l e l l arap6CSOMA VCC17supply voltage tuptuo t ner ru c gn i nut8ENUT tupn i rota l l i cso de l l o r t no c egat l ov9OCV k5 l ac i py t ecnadepmi tuptuo( tuptuo FA MF/MA01OFA?) k051 l ac i py t ecnadepmi tupn i ( tupn i redoced oeret s11IXPM?) tupn i ret l ?-poo l21IFL tupn i etum31ET

26、UM k3.4 l ac i py t ecnadepmi tuptuo( tuptuo l ennahc t fe l41OLFA?) k3.4 l ac i py t ecnadepmi tuptuo( tuptuo l ennahc thg i r51ORFA?) tupn i ret l ? rot ceted t o l i p61LIFLIP egat s XPM dna rot ceted , FI fo dnuorg71DNGFI tupn i rotan imi rcs i d c imarec81MEDMF AFC(n)19AFC negative output AFC(p

27、)20AFC positive output rotac i dn i htgner t s-d l e?12ISF VCC222supply voltage for tuning VDDD23digital supply voltage tuptuo no i tac i dn i gn i nu t dna oeret s /onom42TS/OM tupn i l at syrc52LATX dnuorg l at i g i d62DNGD BUS-CLOCK27bus-clock input tuptuo / t upn i atad sub82ATAD WRITE-ENABLE29

28、bus write-enable input )0P(t rop t uptuo e l bammargorp030P )1P(t rop t uptuo e l bammargorp131P t i ucr i c-CL zHk05423CFA 033 l ac i py t ecnadepmi tupn i ( 2tupn i FIMF332IFI -MF?) VSTAB(B)34internal stabilized supply voltage (B) 033 l ac i py t ecnadepmi tuptuo ( 1tuptuo FIMF531OFI -MF?) AM-IFI/

29、O236input/output to IF-Tank (IFT); output: current source 033 l ac i py t ecnadepmi tupn i ( 1tupn i FIMF731IFI -MF?) VSTAB(A)38internal stabilized supply voltage (A) FM-MIXER39? ?) AM-MIXER40open-collector output to IFT PIN DESCRIPTION - SELF TUNED RADIO TEA5757 k3 l ac i py t ecnadepmi tupn i ( tu

30、pn i ret l ? c imarec ro TFI141IF I - MA? ) dnuorg FRMF24DNGFR 04 l ac i py t ecnadepmi tupn i ( tupn i l a i rea FRMF34IFR-MF? ) tupn i rot i capa c CGA44CGA NOITPIRCSEDNIPLOBMYS Pin configuration. TEA5757H TEA5759H MHA112 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 12 13 14 15 16 17 1

31、8 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 RIPPLE AM-RFI FM-RFO RFGND FMOSC AMOSC VCC1 TUNE VCO AFO MPXI FM-IFI2 AFC P1 P0 WRITE-ENABLE DATA BUS-CLOCK DGND XTAL MO/ST VDDD LFI MUTE AFLO AFRO PILFIL IFGND FMDEM AFC(n) AFC(p) FSI VCC2 AGC FM-RFI RFGND AM-IFI1 AM-MIXER FM-MIXER VSTAB(A) FM-IFI1 AM-

32、IFI/O2 FM-IFO1 VSTAB(B) PIN DESCRIPTION - SELF TUNED RADIO TEA5757 6-46-4 PRESCALER PROGRAMMABLE COUNTER STABILIZER WINDOW DETECTOR LAST-STATION MEMORY AM/FM INDICATOR IN-LOCK DETECTOR FM DETECTOR PILOT DETECTOR CHARGE PUMP MULTIPLEXER CRYSTAL OSCILLATOR SHIFT REGISTER TUNER SWITCH FM IF1 FM IF2 SEQ

33、UENTIAL CIRCUIT STATUS REGISTER AM FRONT END AM OSCILLATOR AM DETECTOR V/I CONVERTER AM MIXER AM IF AGC AFC hard mute level PLL DECODER MATRIX SDS MUTE up down level FM-ON/OFF VSTAB(A) VSTAB(B) AM-RFI XTAL COUNTI RIPPLE 25 4 5 23 1 26 2 P1AGCAM-IFI/O2AM-MIXERAMOSC AM-IFI1 P0 2280313446314046 32 20 1

34、9 13 15 14 9 12 24 16 1817272829333537 39 38 34 7 21 1011342 MO/ST AFRO MUTE AFC(n) AFC(p) AFC VCO LFI PILFIL AFLO stereo stereo mono 38 kHz 19 kHz WRITE- ENABLE DATAFM-IFI2 FM-IFI1FM-IFO1 BUS- CLOCK VCC1 VDDD TEA5762 FM AM CGND DGND TUNERFGNDRFGNDMPXIAFO VCC2 IFGNDFSIFMDEM MBE815 PINNING NOITPIRCSE

35、DNIPLOBMYS tupn i rot i capa c e l pp i r1ELPPIR tupn i FRMA2IFR-MA etar t sbus dna dnuorg FR3DNGFR dnuorg r etnuoc4DNGC tupn i retnuoc5ITNUOC dnuorg ot t i ucr i c rota l l i cso-MA denut l e l l arap6CSOMA VCC17supply voltage tne r r uc tuptuo gn i nut8ENUT tupn i rota l l i cso de l l o r t no c

36、egat l ov9OCV k5 l ac i py t ecnadepmi tuptuo( tuptuo FA MF/MA01OFA?) k051 l ac i py t ecnadepmi tupn i ( tupn i redoced oere t s 11IXPM?) tupn i ret l ? po o l 21IFL tupn i etum31ETUM k3.4 l ac i py t ecnadepmi tuptuo( tuptuo l ennahc t f e l 41OLFA?) k3.4 l ac i py t ecnadepmi tuptuo( tuptuo l enn

37、ahc thg i r51ORFA?) tupn i ret l ? ro t c eted to l i p61LIFLIP egat s XPM dna ro t c eted ,FI fo dnuorg71DNGFI tupn i rota n i mi rcs i d c imarec81MEDMF AFC(n)19AFC negative output AFC(p)20AFC positive output rotac i dn i htgner t s d l e?12ISF VCC222supply voltage for tuning VDDD23digital supply

38、voltage tuptuo no i tac i dn i gn i nut dna oeret s /onom42TS/OM tupn i l at syrc52LATX dnuorg l at i g i d62DNGD BUS-CLOCK27bus-clock input tuptuo / t upn i atad sub82ATAD WRITE-ENABLE29bus write-enable input )0P(t rop tuptuo e l bammargorp030P )1P(t rop tuptuo e l bammargorp131P CFA MA r of t i uc

39、r i c tupn i -CL z Hk05423CFA 033 l ac i py t ecnadepmi tupn i ( 2tupn i FIMF332IF I - MF?) VSTAB(B)34internal stabilized supply voltage (B) 033 l ac i py t ecnadepmi tupn i ( 1tuptuo FIMF531OF I - MF?) AM-IFI/O236input/output to IFT; output: current source 033 l ac i py t ecnadepmi tupn i ( 1tupn i

40、 FIMF731IF I - MF?) VSTAB(A)38internal stabilized supply voltage (A) FM-ON/OFF39FM ON/OFF port AM-MIXER40open-collector output to IFT PIN DESCRIPTION - SELF TUNED RADIO TEA5762 (FOR /12/05) BLOCK DIAGRAM - SELF TUNED RADIO TEA5762 (FOR /12/05) 6-5 6-5 LAYOUT DIAGRAM - MAIN BOARD (5757) for /37/98 TO

41、P SIDE 6-6 6-6 6-76-7 LAYOUT DIAGRAM - MAIN BOARD (5757) for /37/98 BOTTOM SIDE CIRCUIT DIAGRAM - MAIN BOARD (5757) for /37/98 6-86-8 6-9 6-9 LAYOUT DIAGRAM - MAIN BOARD (5762) for /05/12 TOP SIDE LAYOUT DIAGRAM - MAIN BOARD (5762) for /05/12 BOTTOM SIDE 6-106-10 CIRCUIT DIAGRAM - MAIN BOARD (5762)

42、for /05/12 6-116-11 6-126-12 LAYOUT DIAGRAM - HP JACK BOARD TOP SIDE LAYOUT DIAGRAM - HP JACK BOARD BOTTOM SIDE CIRCUIT DIAGRAM - HP JACK BOARD 6-13 T4029940 000 04518AM IFT 7MM C712KC-004 T4039940 000 01213AM IFT 7MM T4049940 000 04519FM IFT 7MM KS2599 T4059940 000 04517AM OSC 7MM 7M1A2146 UR119940

43、 000 04239IC SAA6588T UR129940 000 04241IC 78L05 REGULATOR VC4039940 000 01615TRIMMER CAP 10PF N450 VR4019940 000 04232VAR RES 100K 3P 1/10W X4019940 000 04231CRYSTAL 75KHZ DT381 XR119940 000 04238CRYSTAL 4.332MHZ Note: Only these parts mentioned in the list are normal service parts. Q6319940 000 02

44、642TRANSISTOR, 3CA8550 Q8039940 000 04218TRANS PHP20N06T RF4019940 000 04237FM MODULE FE450-G11. T4019940 000 04518AM IFT 7MM C712KC-004 6-13 7-1 7-1 CD & MCU BOARD TABLE OF CONTENTS Main Board Layout Top View. 7-2 Main Board Layout Bottom View . 7-3 Circuit Diagram - CD Part. 7-4 Circuit Diagram -

45、MCU Part. 7-5 Layout Diagram - SW Board . 7-6 Electrical Parts List . 7-6 LAYOUT DIAGRAM - CD&MCU BOARD TOP SIDE 7-27-2 7-37-3 LAYOUT DIAGRAM - CD&MCU BOARD BOTTOM SIDE 7-47-4 CIRCUIT DIAGRAM - CD&MCU BOARD CD PORTION CIRCUIT DIAGRAM - CD&MCU BOARD MCU PORTION 7-5 7-5 LAYOUT DIAGRAM - SW BOARD TOP S

46、IDE 7-67-6 LAYOUT DIAGRAM - SW BOARD BOTTOM SIDE 8-1 8-1 AC POWER BOARD TABLE OF CONTENTS Internal IC Diagram . 8-1 Layout Diagram - AC Power Board . 8-2 Circuit Diagram - AC Power Board. 8-3 Layout Diagram - AC Socket Board . 8-4 Layout Diagram - Door Moter Board . 8-4 Layout Diagram - RC Board . 8-4 Display Board . 8-5 Key Board . 8-6 Speaker & Ant Board . 8-7 Electrical Parts List . 8-8 Block Diagram IC BLOCK DIAGRAM - LCD DRIVER HT1622 PIN DESCRIPTION - LCD DRIVER HT1622 Pad Description noi tpi rcseDO/ IemaNdaP.oNdaP 1CSI C