Philips-MCB-240-Service-Manual(1) 电路图 维修手册.pdf

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1、CLASS 1 LASER PRODUCT MCB240/22/25 Copyright 2006 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 otherw

2、ise without the prior permission of Philips. Published by SL0620 Service Audio Printed in The Netherlands Subject to modifi cation.GB 3141 785 30511 Micro System TABLE OF CONTENTS Page Location of PC Boards fr Reparaturen sind Original-Ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Sym

3、bol ! markiert. 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. Componenty di sicurezza sono marcati con ! GB After servicing and before returning set to customer perform a leakage cur

4、rent measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. 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 alway

5、s indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules: Example S/N: Bottom line of typeplate gives a 14-digit S/N. Digit 5 , S , T). Replacing battery (lithium CR2025) into the remote control 1Pull out the knob A slightly to the left. 2Pull out the battery compartment B

6、. 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 of properly. Preparations 1-9 PREPARATIONS AND CONTROLS 13 # ) starts or interrupts playback. 0ALBUM 4/3 for TUNER .selects a pr

7、eset radio station. for MP3-CD .skips to the beginning of a current/previous/subsequent album. !Navigation controls PRESET3 / 4ALBUM/PRESET for TUNER . selects a preset radio station (up, down). for MP3-CD (on the remote only) .skips to the beginning of a current/previous/subsequent album. TUNE 1 /

8、2 (S/T) for DAB .scrolls an option list. for TUNER .tunes to radio stations (down/ up). for CD/MP3-CD (on the remote only) .fast searches back and forward within a track/disc (press and hold). .skips to the beginning of a current/previous/subsequent track. ENTER .press to select an option (DAB only)

9、 SOURCE selects the respective sound source for CD/DAB/ FM/AUX. #PROGRAM for CD/MP3-CDprograms tracks and reviews the program. for TUNER/DABprograms radio stations. for CLOCK .(on the set only) selects 12- or 24-hour clock display. $SMART SCAN autoscans for DAB frequencies. %DAB MENU enables access

10、to advanced setup options. DISPLAYID3 for CD/MP3-CDdisplays disc information during playback. for DAB .to view DAB service information. ,S , T). 1-10 Troubleshooting WARNING Under no circumstances should you try to repair the system yourself, as this will invalidate the warranty. Do not open the sys

11、tem as there is a risk of electric shock. If a fault occurs, first check the points listed below before taking the system for repair. If you are unable to remedy a problem by following these hints, consult your dealer or Philips for help. “NO DISC” is displayed. Radio reception is poor. The system d

12、oes not react when buttons are pressed. Sound cannot be heard or is of poor quality. The left and right sound outputs are reversed. The remote control does not function properly. The timer is not working. The Clock/Timer setting is erased. Insert a disc. Check if the disc is inserted upside down. Wa

13、it until the moisture condensation at the lens has cleared. Replace or clean the disc, see “Maintenance”. Use a finalised CD-RW or correct format disc. If the signal is too weak, adjust the antenna or connect an external antenna for better reception. Increase the distance between the Micro HiFi Syst

14、em and your TV or VCR. Hang up one end of the T-shape antenna and keep the other end at horizontal angle to it. Remove and reconnect the AC power plug and switch on the system again. Adjust the volume. Disconnect the headphones. Check that the speakers are connected correctly. Check if the stripped

15、speaker wire is clamped. Check the speaker connections and location. Select the source (CD or TUNER, for example) before pressing the function button (2 ; , S, T). Reduce the distance between the remote control and the system. Insert the battery with its polarities (+/ signs) aligned as indicated. R

16、eplace the battery. Point the remote control directly toward IR sensor on the front of the system. Set the clock correctly. Press TIMER to switch on the timer. Power has been interrupted or the power cord has been disconnected. Reset the clock/timer. ProblmeSolution Important notes for users in the

17、U.K. Mains plug This apparatus is fitted with an approved 13 Amp plug. To change a fuse in this type of plug proceed as follows: 1Remove fuse cover and fuse. 2Fix new fuse which should be a BS1362 5 Amp, A.S.T.A. or BSI approved type. 3Refit the fuse cover. If the fitted plug is not suitable for you

18、r socket outlets, it should be cut off and an appropriate plug fitted in its place. If the mains plug contains a fuse, this should have a value of 5 Amp. If a plug without a fuse is used, the fuse at the distribution board should not be greater than 5 Amp. Note: The severed plug must be disposed of

19、to avoid a possible shock hazard should it be inserted into a 13 Amp socket elsewhere. How to connect a plug The wires in the mains lead are coloured with the following code: blue = neutral (N), brown = live (L). As these colours may not correspond with the colour markings identifying the terminals

20、in your plug, proceed as follows: Connect the blue wire to the terminal marked N or coloured black. Connect the brown wire to the terminal marked L or coloured red. Do not connect either wire to the earth terminal in the plug, marked E (or e) or coloured green (or green and yellow). Before replacing

21、 the plug cover, make certain that the cord grip is clamped over the sheath of the lead - not simply over the two wires. Copyright in the U.K. Recording and playback of material may require consent. See Copyright Act 1956 and The Performers Protection Acts 1958 to 1972. CAUTION Use of controls or ad

22、justments or performance of procedures other than herein may result in hazardous radiation exposure or other unsafe operation. 1-11 2-1 2-1 DISMANTLING INSTRUCTIONS Dismantling of the Rear Portion 1) Remove 11 screws A and B as indicated to remove the Rear Cabinet. 2) Remove 2 screws C as indicated

23、to loosen the Speaker Wire Holder. 3) Remove 2 screws D as indicated to loosen the Speaker Board . 4) Remove 2 screws E as indicated to loosen the AUX IN jack. DISMANTLING INSTRUCTIONS Figure 1 Figure 2 1) Loosen 2 screws F1 to remove the DAB Adaptor Board. 2) Loosen 3 screws G to remove the CD Mech

24、anism Holder Bracket and loosen 5 screws F2 and F3 as indicated to remove the Main Board. 3) Remove 3 screws H as indicated to loosen the Gear Motor Module. 4) Loosen 4 screws I (see Figure 4) to remove the Key_C Board. 5) Loosen 2 screws J (see Figure 4) to remove the Display Board. Figure 3 Disman

25、tling of the Front Boards and CD Door 6) Loosen 4 screws K (see Figure 3) to remove the Power Key Board. 7) Board. 8) Lever Bracket Right/Left, then remove CD door. Repair Hints & Service Positions Note: The flex cables are very fragile, care should be taken not to damage them during repair. After r

26、epair, be very sure that the flex cables are inserted properly into the flex sockets before encasing, otherwise faults may occurs. Service position A Service position B Figure 4 Loosen 8 screws L (see Figure 3) to remove the Volume Loosen 8 screws M (see Figure 3) to remove the Door Eject 3-1 3-1 SE

27、RVICE TEST PROGRAM (I) MCU All Reset STEP 1: After plug in power, within 5 sec, on the front panel press PRESET DOWN key first (do not release). STEP 2: Then press SMART SCAN key on the panel (two keys are pressed). The system data now is reset. After the MCU data reset, all the setting will be rese

28、t to default and the all FM memory will be reset to 87.5MHz. Note: It is for factory reset before packing. (II) MCU Software Version STEP 1: After plug in power, within 5 sec, on the front panel press PRESET DOWN key first (do not release). STEP 2: Then press DAB MENU key on the panel (two keys are

29、pressed). The model number and software version now can be shown on the display. (e.g. MCB240 for 3 sec then goto version no. XXX) (III) Display Segment Test STEP 1: After plug in power, within 5 sec, on the front panel press PRESET DOWN key first (do not release). STEP 2: Then press PROGRAM key on

30、the panel (two keys are pressed). All the LCD display segment will be turned on. (IV) Tuner Alignment Set Test STEP 1: After plug in power, within 5 sec, on the front panel press PRESET DOWN key first (do not release). STEP 2: Then press SOURCE key on the panel (two keys are pressed). All the LCD di

31、splay segment will be turned on. After the MCU data reset, the tuner memory will be preset to P1 FM87.5MHz, P2 FM90.1MHz, P3 98.1MHz, P4 106.1MHz, P5 108.0MHz and the remain will be set to 87.5MHz. Note: It is for factory tuner alignment. 4-1 4-1 SET BLOCK DIAGRAM 5-15-1 SET WIRING DIAGRAM 6-1 6-1 P

32、rinted Circuit Board - Side A POWER BOARD Printed Circuit Board - Side A 6-26-2 CIRCUIT DIAGRAM 7-1 7-1 MAIN BOARD The board is not intented to be repaired on component level. Circuit Diagram and Printed Circuit Board drawings are published for orientation only. In case of defects please replace the

33、 entire board. The board can be ordered with codenumber 9940 000 02999 for /22/25. LAYOUT DIAGRAM - MAIN BOARD TOP SIDE 7-27-2 7-37-3 LAYOUT DIAGRAM - MAIN BOARD BOTTOM SIDE CIRCUIT DIAGRAM - MAIN BOARD PART 1 7-47-4 CIRCUIT DIAGRAM - MAIN BOARD PART 2 7-5 7-5 CIRCUIT DIAGRAM - MAIN BOARD PART 3 7-6

34、7-6 CIRCUIT DIAGRAM - MAIN BOARD PART 4 7-77-7 CIRCUIT DIAGRAM - MAIN BOARD PART 5 7-87-8 CIRCUIT DIAGRAM - MAIN BOARD PART 6 7-97-9 CIRCUIT DIAGRAM - MAIN BOARD PART 7 7-107-10 CIRCUIT DIAGRAM - MAIN BOARD PART 8 7-117-11 LAYOUT DIAGRAM - HEADPHONE BOARD LAYOUT DIAGRAM - DOOR SWITCH BOARD 7-127-12

35、CIRCUIT DIAGRAM - HEADPHONE BOARD CIRCUIT DIAGRAM - DOOR SWITCH BOARD The board is not intented to be repaired on component level. Circuit Diagram and Printed Circuit Board drawings are published for orientation only. In case of defects please replace the entire board. The board can be ordered with

36、codenumber 9940 000 03001 for /22, 9940 000 03064 for /25. 8-1 8-1 DAB ADAPTOR BOARD LAYOUT DIAGRAM - POWER KEY BOARD TOP SIDE LAYOUT DIAGRAM - POWER KEY BOARD BOTTOM SIDE LAYOUT DIAGRAM - VOLUME BOARD TOP SIDE LAYOUT DIAGRAM - VOLUME BOARD BOTTOM SIDE LAYOUT DIAGRAM - DAB ADAPTOR BOARD TOP SIDE LAY

37、OUT DIAGRAM - DAB ADAPTOR BOARD BOTTOM SIDE 8-28-2 8-38-3 CIRCUIT DIAGRAM - DAB ADAPTOR BOARD PART 1 CIRCUIT DIAGRAM - DAB ADAPTOR BOARD PART 2 CIRCUIT DIAGRAM - POWER KEY BOARD CIRCUIT DIAGRAM - VOLUME KEY BOARD 8-4 8-4 The board is not intented to be repaired on component level. Circuit Diagram an

38、d Printed Circuit Board drawings are published for orientation only. In case of defects please replace the entire board. The board can be ordered with codenumber 9940 000 03007. 9-1 9-1 LCD BRACKET BOARD LAYOUT DIAGRAM - LCD BRACKET BOARD TOP SIDE LAYOUT DIAGRAM - LCD BRACKET BOARD BOTTOM SIDE CIRCU

39、IT DIAGRAM - LCD BRACKET BOARD 10-1 10-1 NAVIGATION KEY BOARD & SPEAKER JACK BOARD LAYOUT DIAGRAM - NAVIGATION KEY BOARD TOP SIDE LAYOUT DIAGRAM - NAVIGATION KEY BOARD BOTTOM SIDE LAYOUT DIAGRAM - SPEAKER JACK BOARD TOP SIDE CIRCUIT DIAGRAM - NAVIGATION KEY BOARD 10-210-2 CIRCUIT DIAGRAM - SPEAKER J

40、ACK BOARD 11-1 11-1 SET EXPLODED VIEW 1 234 5678 9 1112 131415 1617181921 222324 25 26 2728 29 3133 37 36 35 38 39 32 41 34 42 43 44 45 46 47 48 49 60616263 6465 6768 71 7273 74 75 76 60 61 62 63 64 65 66 72 67 68 69 71 73 74 75 76 69 66 SCREW LIST 11-211-2 ELECTRICAL PARTS LIST - DAB ADAPTOR BOARD

41、D2039965 000 38177DIODE PRLL4001 D2049965 000 38177DIODE PRLL4001 IC2055322 209 11548IC 74HC14D IC2069965 000 38179IC 74HC74D IC2079940 000 01435IC S7805P IC2089940 000 05724IC LD1117AL-3.3V-D L2049965 000 38182IND. 84NH K% 1.6X1.8MM L2059965 000 38180IND. 39NH K% 1.6X1.8MM L2069965 000 38181IND. 56

42、NH K% 1.6X1.8MM DAB MODULE 9965 000 38175DAB MODULE FS2023 /22 DAB MODULE 9965 000 38176DAB MODULE FS2020 /25 9965 000 3817844P HEADER 1LUAFS-44S2 Note: Only these parts mentioned in the list are normal service parts. MECHANICAL & ACCESSORIES PARTS 22/TEEF6DROCREWOP154100000499SNELROODDC120300000499

43、10 52/SBDROCREWOPCA850300000499REIRRACROODDC65030000049920 039940 000 03052CD DOOR EJECT LEVER LEFT9940 000 03063REMOTE CONTROL 22/ERIWANNETNA660300000499TENIBACTNORF71030000049940 52/ERIWANNETNA800300000499SNELROSNES22030000049950 )THGIR+TFEL(XOBREKAEPS472300000499YEKNEPO-PAC23030000049960 079940 0

44、00 03031CAP-POWER KEY 089940 000 03047BRACKET -POWER KEY 099940 000 03037GEAR WHEEL-A 119940 000 03016RUBBER RING ID36 129940 000 03038GEAR WHEEL-B 139940 000 03039GEAR-C-DRIVER PULLEY 149940 000 03054BRACKET-MOTOR MOUNTING 179940 000 03018REAR CABINET Note: Only these parts mentioned in the list ar

45、e normal 189940 000 03041STUB-ANTENNA SLOT normal service parts. 199940 000 03051BKT-SPEAKER BOX MOUNTING 219940 000 03019SPEAKER WIRE HOLDER 229940 000 03014RUBBER FOOT L25XW11.5XH1.5 239940 000 03055UNIT STAND 249940 000 03013RUBBER FOOT L24.5XW6XH1.5 259940 000 03015RUBBER PAD DIA6MMX1.5 279965 0

46、00 16216CD DAMPER YELLOW 30DEG 289940 000 03057CD MECHANISM DA23ZPH 299965 000 16217CD DAMPER WHITE 40DEG 319940 000 03046BRACKET-FUNCTION KEY 329940 000 03025CAP-FUNCTION KEY 339940 000 03042BRACKET-PLAY/STOP 349940 000 03026CAP-PLAY KEY 359940 000 03027CAP-STOP KEY 369940 000 03043BRACKET-SEARCH /

47、ALBUM 379940 000 03029CAP-ALBUM KEY 389940 000 03028CAP-SEARCH KEY 399940 000 03045BRACKET-ENTER KEY 419940 000 03024CAP-ENTER KEY 429940 000 03044BRACKET-DAB CLUSTER 439940 000 03023CAP-DAB CLUSTER CHROME 449940 000 03048BRACKET-VOLUME KEY 459940 000 03033CAP-VOLUME KEY 469940 000 03034CONTROL PANE

48、L 479940 000 03035CD DOOR COVER LEFT 489940 000 03036CD DOOR COVER RIGHT 499940 000 03053CD DOOR EJECT LEVER RIGHT ! ! ELECTRICAL PARTS - MISCELLANEOUS IC1029940 000 03276INFRARED RECEIVER JA6029940 000 03275SPEAKER JACK LED1019940 000 03277LED INDICATOR 3MM RED SW19965 000 13779TACT SWITCH SW29965 000 13779TACT SWITCH SW39965 000 13779TACT SWITCH SW49965 000 13779TACT SWITCH SW59965 000 13779TACT SWITCH SW69965 000 13779TACT SWITCH SW79965 000 13779TACT SWITCH SW89965 000 13779TACT SWITCH SW99965 000 13779TACT SWITCH SW109965 000 13779TACT SWITCH SW119965 000 13779TACT SWITCH SW12996