Philips-MCM-277-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 MCM277/05/12/98 Copyright 2010 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 for

2、m or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by SL1020 Service AudioPrinted in The NetherlandsSubject to modification Micro System 3141 785 32376 Version 1.6 Service Manual From week 0913 onwards, ALI solution(decode IC) has

3、 been adopted to replace ROHM solution(decode IC), accordingly new Main Board 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, TU

4、NER or AUX In standby or Eco 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

5、 the CD door 6CD door 7VOLUME 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: sel

6、ects albums (for MP3/WMA only) 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 p

7、redefined sound settings: ROCK, 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

8、% $ ! 9 0 # 2 4 5 6 3 USB / 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 d

9、isplays the timer setting switches 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

10、selects random playback 9REPEAT 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:

11、 - displays the set time - In 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 t

12、o control by pressing one of 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 PO

13、WER mode (power-saving mode) 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

14、 and MW In standby or Eco Power 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: o

15、n desktops with stand or on 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 PRE

16、SS 3 Push the stand down into 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 con

17、nections Warning: Never make 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 negat

18、ively affected. Connect the 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

19、 clip b. Press the clip of the 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 IFGNDF

20、SIFMDEM MHA111 BLOCK DIAGRAM - 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

21、ot t i ucr i c rota l l i cso-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

22、?-poo l21IFL tupn i etum31ETUM 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

23、)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 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 a

24、tad sub82ATAD WRITE-ENABLE29bus 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 ( 1tup

25、tuo FIMF531OFI -MF?) AM-IFI/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

26、i py t ecnadepmi tupn i ( tupn 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

27、25 24 23 12 13 14 15 16 17 18 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 F

28、M-MIXER VSTAB(A) FM-IFI1 AM-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 TU

29、NER SWITCH FM IF1 FM IF2 SEQUENTIAL 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

30、 P0 2280313446314046 32 20 19 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 IFGNDFSIFMD

31、EM MBE815 PINNING NOITPIRCSEDNIPLOBMYS 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

32、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 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 ec

33、nadepmi tuptuo( tuptuo l ennahc 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

34、tuning VDDD23digital supply 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 bamma

35、rgorp131P CFA MA r of t i ucr 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

36、t ecnadepmi tupn i ( 1tupn i 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 - MAI

37、N BOARD (5757) for /37/98 TOP 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

38、DIAGRAM - MAIN BOARD (5762) 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 04517

39、AM OSC 7MM 7M1A2146 UR119940 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 se

40、rvice parts. Q6319940 000 02642TRANSISTOR, 3CA8550 Q8039940 000 04218TRANS PHP20N06T RF4019940 000 04237FM MODULE FE450-G11. T4019940 000 04518AM IFT 7MM C712KC-004 6-13 4236 4236 4233 /05/12 4236 7-17-1 CD (2)Hold PROGRAM and DBB buttons together when set on ECO Power mode (LED light is on); (3)The

41、 LCD will display the software version as Mxxx xxx To clear all program station of tuner mode: (1)Plug in the set; (2)Hold STOP button when set on ECO Power mode (LED light is on); (3)The LCD will display full screen,all program station of tuner will be cleared. Starting Serial Number: EF2A091300000

42、1 SOFTWARE VERSION CHECKING 10-1 10-1 SET BLOCK DIAGRAM 11 - 1 11 - 1 SET WIRING DIAGRAM 11 - 211 - 2 PCB LAYOUT - MAIN BOARD (TOP VIEW) 12-112-1 12-2 12-2 PCB LAYOUT - MAIN BOARD (BOTTOM VIEW) 12-3 12-3 CIRCUIT DIAGRAM - MAIN BOARD PCB LAYOUT - CD & CD DOOR MOTOR & LIMIT SWITCH BOARD (TOP VIEW) 13-

43、113-1 13-2 13-2 PCB LAYOUT - CD & CD DOOR MOTOR & LIMIT SWITCH BOARD (BOTTOM VIEW) - ONLY FOR REFERENCE 13-3 13-3 CIRCUIT DIAGRAM - CD & LIMIT SW BOARD ONLY FOR REFERENCE PCB LAYOUT - AC POWER & HP JACK & SP & ANT JACK & RC BOARD (TOP VIEW) 14-114-1 14-2 14-2 PCB LAYOUT - AC POWER & HP JACK & SP & A

44、NT JACK & RC BOARD (BOTTOM VIEW) 14-3 14-3 PCB LAYOUT - KEY BOARD (TOP VIEW) PCB LAYOUT - KEY BOARD (BOTTOM VIEW) 14-4 14-4 CIRCUIT DIAGRAM - KEY BOARD & AC POWER BOARD 14-5 14-5 CIRCUIT DIAGRAM - HP JACK & SP & ANT & RC BOARD SET MECHANICAL EXPLODED VIEW 15-115-1 4 9 15 - 215 - 2 (FOR ALI SOLUTION)

45、 MECHANICAL & ACCESSORIES PARTS LISTELECTRICAL PARTS LISTELECTRICAL PARTS LIST Loc.12NCDescriptionLoc.12NCDescriptionLoc.12NCDescription MAIN UNITDISPLAY/MCU PCB ASSYCD/USB PCB ASSY (ONLY FOR REFERENCE) 1 996510010723LENS-CD DOOR FOR /12/05/37D3996510026339DIODE MMBD4148WMQ1 996500041698CH-TRANS. 80

46、50M SOT23 D3996510026385DIODE LS4148-GS08MQ11 996510007048CH-TR. PNP SS8550LT1 SOT-23 3996510010722DOOR-CDD7996510026339DIODE MMBD4148WMQ12996510007048CH-TR PNP SS8550LT1 SOT-233996510010722DOOR-CDD7996510026339DIODE MMBD4148WMQ12996510007048CH-TR. PNP SS8550LT1 SOT-23 4996510010733COVER FUNCTION PA

47、NELD7996510026385DIODE LS4148-GS08MQ13 996500041698CH-TRANS. 8050M SOT23 7 994000004308BUTTON PLAYIC1 996510026362MCU CA6810F LQFP64MQ14 996500041698CH-TRANS. 8050M SOT23 8 996510010731BUTTON FUNCTIONLCD1 996510006483LCD DISPLAY 1/8 DUTY 1/4 STNMQ2996510007048CH-TR. PNP SS8550LT1 SOT-238 9965 00 073

48、UTTON FUNCTIONLCD1 996510006483LCD DISPLAY 1/8 DUTY 1/4 STNMQ2996510007048CH TR. PNP SS8550LT1 SOT 23 9996510026403PANEL FUNCTION /12/05/37LED701996510036396 LED 4MM WHITEMQ3 996500041698CH-TRANS. 8050M SOT23 LED701996510026368LED 4MM WHITEMQ4 996500041698CH-TRANS. 8050M SOT23 10 994000004309BUTTON

49、FW/FFLED702 996510000292LED 3MM 3R4HD-7(RED) TAPINGMQ5 996500041698CH-TRANS. 8050M SOT23 11 994000004315COVER PLAY BUTTONQ1 996500041698CH-TRANS. 8050M SOT23MQ6996500040080IC AP1117E33LA REGULATOR 12 996510010725HOLDER CD DOOR CARRIER (R)Q10 996510007049CH-TR. PNP 3CA8550M SOT-23MQ6996500041892IC AZ1117H-3.3 REGULATOR 13 996510010724HOLDER CD DOOR CARRIER (L)Q2 996500